UDC

JAPANESE

INDUSTRIAL

666.972-

STANDARD

concrete

Ready-mixed

@ JIS A 5308

Translated

and

Published

by
Standards

Association

KT

Japanese

Printed

in Japan

36


In the event of any doubt arising,

the original Standard

in Japanese is to be final authority.


lew

1

A 5308-1993

4

Contents
Page

~

tà
kad *


Scope

«oi Ki t mm In mm 9 0. 0600.608.008. 0,8. 6 018 00. 90 0 6 0 0 0m 0 000 04146. 6 60.0 8.9.8.6 6: 906 00 0 0. 0 4.6 6-8 8 005.8 8 6 iá R 9 0. 9 908 9 6 0. 6 9 0 9 0 Ác 6 006 000 6 E2 0 6 6 mg 9 4 6

†

2

Types

Peete

1

3

A1122

Strength, slưmp

3.2

®.1[bari[

|.

Proportion

6.


h1 [8

>
+

hay

tuy

ì

6.3

Waller

6.4

Admixture

ws

Tin 144016106100 800 089611000896. 11001 04088186180 EE ELE EEE ES

A
‡

66 8.66 8.6 600 00010 996.6: 6 6 6 010 0.0 4 0.0 00006090019 0190600 010 000101956 8:86 6:0 6.6.3.6: 4-6 96 8:0. 0.6 90005 96. E4 ni gi 6i 6 0V 04060

f


. ....................................Ồ...

A

{

doce cane ce em eee ceeee ees anannebaeheesaeeEeeese ee eeeeeseeeeeeDeRee eee eeeeaerrsenssceeeeusssseesecesseees

......(‹ẦẢẦẢẦỶẢỶÃỶÃỶỶÃ...
1721Ï

Manufacturing

7.1

Manufacturing

7.9

HỆ h1 11y2011:

7.3

Mixing

7.4

Transportation

7.5


Quality

{

4

CA...

{

¡10

10100:

h

Strength

8.3

Slump

Ầ.ằe-...................

-

D
in 3


¬

[87 —...........................

............................................

8.6

1mm

8

ee...........

...............
6...

............

bee eee e een en eens nese eee e ee ease ene tens tee eee EOS SRO ESSE REEDS E LCOS DEORE ERE REE DEFER SENOS

9

... .e.-..................

No

nọ

KH ki nọ ĐK c8. 0 08901150055. 1950994. 8951661605 190

NNNN NNNNNNNNNN ONNNNN,

9.1

TĨC

99

Strengely

93

Slump

9.4

Chloride

9.5

Designated

10. —

Designation ‹---:--------c chen

11.

Report


Q

dMM

CONEENE

"

0n

nan

nan

ốc
he...

9
10

10

een eeeee eens eneeeenene ened
-sercrsescectsseveeerecteeceesensneneeteeeesseeeeessn

CONNCOTIE

9

10


-ccsseeecsececcceresssseeceresssseessseneesseneenseescssensnensseeeesneerenssseereeeees "¬

182

g
9

1

Air

g

mm.

a a.....

ATA

8

.........

ƠỒƠ........

01011077

&


q

Ơ“(

8.5

7

a........................

H218

‹‹-‹‹-«.‹‹ ae

5

5

N.

neee........

Content

0

.

.


1U

8.2

Air

q

15 1n

Sampling

8.4

Hđ 1đ:

POR eee eee ence ene nde tense eet e 40-46 0 0.6.6 8-6 6.6.4 6:6 6 6 4 8 6 4 4 608 2.8 4. 4 0 6 9 4. 6 46/4 45-6 6 0 0 6 609 06 06 8:0 5 9 6 6 0 8 2.0 0 900 8 900/8 0.6 6 45 6:6 6 006 6 3.6

8.1

9,

ị

9

ồn

0# 201217077 e5...
Aggregates


8.

x

lus

«HÀ 9 R9 HH

6.2

7.

|

>

3

--............

Volumie-‹‹-::...-..--..-...- V' n9 t3 11 3 0n

3

`

°

‘


and aïr conit@rit‹‹:--:--c:c-cc chen

van

5.

6.1
}

ốc
hố hố. .g(a...

3.1
4.

tờ

cena eee ee eae eee seen cence eee eee EOE DEERE HOE Sete tant nme 600600 004 6 006 6:6 4 Ki 004 0g 900 9 000 9000 0 6 00 001: 008 0000 bá 6066 về

nan

nan

10
10

10

10


-.....................

(i)

19


A 5308-1993

11.1

Delivery sheet for ready-mixed conecrete -------:----ennnherrerrrrrrrrrrrersre

11.2

Report

of ready-mixed

concrete

nghe.

...................

19

standards


the he ưu
----:-::--:---:‹--scss chen

18

for ready-mixed concrete----‹---------cceereereerrerrrrrrrrrreree

18

1.

Scope wvssssssssssesssseesssnsesssusessscssssesensnsccesssnsssecsnstersnasessuesnisessuenssseesseecsenecsesneaten

18

2

TY DES ---- c2 tình...
1.11. n1
00111411111...

18

3

Crushed

stone and crushed Sand -erv-+sssresseeesseeceeseecasenseeesseseerenesesseesnenanenes

18


A,

Slag aggregates--.....................--ecseeiierrrnirrrrirrrrrrrrrrrrrrerrrrrririiririreerrree

18

5. — Artificial lightweight aggregates ---------------------ccceennerrrrrrrrrrrrrrrrrrrrree

19

Attached

Annex

nông

1.

Cited

1.

Table

Aggregates

6

Gravel


ng tà ng 101 0109 5 14809 C84009 R4

19

7

Classification by alkali-silica reactivity ‹----‹--------c-cccceeeenreneeerrrrrrrrrrrrrre

21

8

In the case where aggregates are mixed for te ‹---‹‹-:----‹++---eeeeeerreerreerte

21

and

0 ng

co cccc Snnnn>Knn tàng

sand-‹--:‹.-...c‹

9... Test methods for aggregates ----------------.---sccc chenHe
Annex 2.

22


Method of testing particles contained in aggregates
and floating in liquid of specific gravity L.Q5 -c-ccesssesssesseeeserenes

24

L.

Scope-................................
si SH HH
TH TH TH
gen

24

2.

Test appliances -............................ệàìọonS
Sen

24

2.1

In the case of fine aggregates ‹---......................oọoo
co orienireriirriiiirriiirrie

24

2.2


In the case of coarse aggregates ---......-. ST

ng kg 1 016 9195027500001
50%

2A

B.

Test solution -----‹------sằccsccccnhieeernreerriirerrrihrrrrrerrrerrrrrrirerrreerrrerrierrirrriie

24

4.

Sample --.................................ĂĂĂ
TH
HH1.
ree

25

the

case

of testing

fine


TH

4.1

In

aggregfFGS-------:‹c chen

4.2

In the case of testing coarse aggregates --crssssssscssesseesssesssessssessseseseeessees

5. — Test methods ‹---..............-.... co ĂSSSĂQ SH
5.1

In

the

case

of testing

finẻ

5.2

In the case of testing coarse

ng


ng

25

TS HH C9691

c6

aggregates---------....------ che.

25
25
25

APBT€gat6s ------‹--:c co chien

95

6. — Calculation--.......................- ¬—...

26

Annex

27

3.

Method


of testing sand

1

Scope KỆ.
1 HT KHE

2

Test

3

Materials

appliances

`.)
5

5.1

Test

by compressive

strength

of mortar-----.....-


T11.
TH
TH HT
TH HH TH

ng

o-scccccccccccccssccccesssssrecsssssssccssssscseceeeessceseseeeseeeseseeseeseeseessanaaaeners

to be used

in tesEÏnB ‹-‹:-- ch
nh
HH

HH te,

..........3....

methods ‹--.................-c--c- Q00

Determination

0

ng.
Ho
g1 se


of proportion of Mortar sess

(ii)

-

EL

on proportion

nh

27
27

97

97
28

28

t_

nh

12


A 5308-1993

5.2

Measurements

5.3

Molding of specimenn ‹-‹-‹--‹-: càng
HH HT HT nh ng

28

5.4

Compressive strength tesE ‹‹‹‹‹--....o.- nen
HH HH
gi

29

® 10101101177...
. .
..

6.

ae
0 M9 m

Annex


4.

Method of testing floating particle rate of
lightweight

Test

appliances

a1
Calculation

0 0080 8 0000 8060010806000 018-80 10 10001980000 980009 08.48004606 510 20800194 0v c8. 909 980 it nàn ki in im v4
.....o...............

.

ee.................

Method of testing chloride ion concentration of

water contained in fresh concrete «-ssssssssesescsseecssscseseevecenseneeees
nh

HH1

2 kg Hà Hà TH HH TH HH

Tố


TH TT

TH HT KH

ốốốốố.ố.ốốốeea....

30

30
3Ó
30

30
31

39
39

39

Analyzing method ‹-..-................. treo

39

110117

32

6.


ốốốốố

ốố.e..................

Method of restraining alkali reactivity of aggregates
through

selection of cement

and

others -rescrercereteceseeseetseeertetteeeenes

acc
cốc cốc cố

=m
M
múa

na...

........................

9E

1111.

7


cố...

.ố..ố.ốố.ố..a...........

Restraining measures using portland cement (low alkali type) -----:------Restraining measures

using mixed cement with effects

11

33
33
33

restraining alkali reactivity of aggregates -----s+scccsecsssscsecessescneessseessetecnnes

33

Restraining measures by delimiting total alkali content in concrete---

33

1.1117.

5.2

7101141

7 7...
0017


ố

R€DOF ---c-ccSẶ Set
7,

1
in
aa

na

28

29
re.

Can

ae...

5.1

Annex

«TS Hi n4 ni t9

Sample

210C


6.

aggregateg ‹‹‹--‹--cccc con

acc

Scope co

5.

coarse

Scope

Annex 5.

Annex

of flow and air contenE oŸ morar -‹-:--‹‹‹cscccceeeenrrrrerree

12H

ố

. ..

e.........

tt 1111101000 0111 11g00 1111101100 ch


Test method for potential alkali-silica reactivity
of aggregates

(chemical

method) --1-cessssesssesresessensteseenseteeeteesenteeens

.....................

nh

......................

33
34

34
36

36
36

SampIle ----------------cccccnerrerrrerrrrrrerrrierrrriirieiiiiiiiiirtrrirtieirrrrrrirrriiriniitrriiid

36

Test Apparatys -vssccsecsscsessseccescsessecesssesseesensiesssensecssesaecsseesecsaeesnecnnseenasoanennnetey

36


Apparatus

and appliances

for sample

preparation ------- ¬..

(iii) |

36


A 6308-1993

4.2

Test apparatus and appliances -------------------------ccsseeenreereerrrrrrerrerrerrre

5. —

Water and reagen§ ‹‹-:--‹----:-c+ sen

HH

ghi

TA N


¬/.

5.2

Reagents evvessecesseeesseessencesssessesseesessnssnessneeenssessussssersscsnssseensseesssassessnennenncenesness

6.

............................

Preparation

of sample -------+‹-+++*+ceeeehneettrtrrrrrrrrrrrrrrrirerrrerrererrrrerrrrereee

6.1

—_ Reduction of sample -v-re--ssecssseseeeersseseeseenearensssatensnenssserenenenenereneeeessanersseseaseses

B.2Q

Coarse crushing----------‹-‹----cccccssằesennhnhhhh
nhe
he

6.3

Preparation of representative sample----:-:-‹-:-ccceccreeererrerrrrerrerrrrerrrire

J.


- Test

nh

.............................

7,1

Procedure

of reaction between

alkali and

aggregate

sample -----:----------

7.2

Method

7.3

Methods of determining dissolved amount of silica ------------------------essess

8.

Method of summarizing test results ---ssssessessessseseeseessesssesseeseeeseesseesnes


of determining decrease in alkali concentration --------:------s2+;++

8.1.

Entry in date sheets -----:--ssssssssssssssessesssssesseesessessssssessssnesseessessessessesssesstessesaes

B.2

Precision tolerances nh...
bEvaluation of potential alkali-silica reactivity of aggregates -----------------

LỘ

9.

Annex 8.

Test method
(mortar

for potential alkali-silica reactivity of aggregates

bar

metho(Ì)--‹‹:‹c-c

ch

nh


ng

ng nh

ng

nan

nh

d5...
2

3.

Sample c9 6 909

Test

3 9 0 90 00 6 6 0 4 4 6 0 6:9 08 i0 94 00 0108 0 0/0601

APPATALUS

0 TT CC CC N11

3.1

71117

3.2


FOL

3.3

Measuring

apparatus

3.4

Apparatus

for preparing

3.5

Sieve--.-............ 9

3.6

Storage

3.7

31117

4.

Molding


4.2

Storage

5.

¡n1!

1đ...

... .........................
17G

ồồ........................

for length

room

1n i7
8

KH

0H

800k

Ki


—.......

measuring

0100106 80946004006 8.0045 8409089940655

.. Ầ.Ầ..........................

Ắa...........

humidity

and

0K p4
..

. ..
and

variation ‹---------‹---«cà sSeniehhhheeeeeerrrre

morÊAT ---‹-----.-----cc
cà
nhe
re

6000900964006 0100609


COTNCAINETS

Temperature

4.1

01009909198 900108 0.18 4 60010 6:8:519 0 0:8 0096.601996 6.500 96-6.019 6.6 619.8: 6. 9 họ gi 0 6 0ø 8

I0

(1ä...

e......................

......ae...

e..-..........-.......
............=
.

5.1

Preparation of aggregates and adjustment of particle size -------------------

5.9

0201717

5.3


Sodium

...ố.ốỐố ằ.-'ad.ddaill
án ằ.ằ.ằ.ằ
ca
hydroxide

".

: c0 9 0

6 000400050.

6 9600066. 19 6.0.8/6.906.600001.6.61010 6:819086:8198.0'9-6.

6.8 0 80006 09


A 5308-1993
5.4
6.

Water

cvccvccccccccccsssnccescerscscerecsessasssnsncsescussnsenessscusreseeceendstestaresstacesscestectestasensecece

Preparation

of spécimens


(Mortar

baF§) ------cccntn nh

HH

nh

nhe

cà

47

6.1

Number of specimeng --................Ă 0.

6.2

Mixing

of Mortar ceecesccccreescesccceseesesesecceesescereusseesseeseseeeseeeeeee
anaes

48

6.3

Measuring of materials -----:-+s-ssssessssessesesseesessessecseeusavesscsessecssesessessseesecsvesnesaes


48

G.5
Molding--........................................ì.ĂẰĂ
HH
111111211121 11111 eerdeg
7. — Initial curing ----------..................ìăĂằĂĂSSTĂHH
HT
10121121 11111 11111 re.
B.
Removal of formwork --............. cà
Q.2 St nh
HT HT TH 1 1g ru

48
48
49

proportion

tt TS HH 2101211 1211 truy.

47

6.4 — Mixing method-‹--.............................Ă
Su. tt HH
ren

9,


10.

Method

of measuring

Storage

and

base

length

--::--.-.-------c
chinh
key

measuremehnIE ‹‹‹:-:-‹-‹:.----cc

11.

[2 ;1-109g)01:0::1-10:00Ô 07

ca.

11.1

Measurement


11.2

Observation of appearance ¬.

of change

0Q SH

ng

vế

....H.O.O.Ơ.A..........ố.

in length

---------......----.......
co SSĂ Si

12.

Calculation of expansion coefficient svssssssssssssssssssssssssssssssssssessssssssseeseeseceeees

13.

Material

ages


for measuremenE§

HH

HH

HH TT

hi

1.

Ổcope-----...................àààìằằằằĂĂ
HH. H121
111k

2

ĐT

3

07:

4.

Water from public water supply ------------.----‹-ccccccccnneeerrerrererreriierrree Hy

.ee................
5...


HH...

5.

Water other than

50

50

50

HH HH

Water to serve for mixing ready-mixed concrete ---------------ec se
...

49

H00

-------...............oàằĂ co Ăn.

8

49

HH


Precision -.................................ì
HH
HH TH
re

10-111

49

50

15.

Annex 9.

49

¬

Evaluation ------..‹---.---.-.-- chì
Repor

48

‹‹------..---...--..----.c
SG Sen.

14.
16.


AT

that from public wnter

51

52

59
59

.

59

supplÌy ‹-:---‹--------scceehheeeeeee

6. — Recycled water -..-.--........ ăn
g1 ng

51

59
52

6.1

tệp

Quality‹......................................

cà ST nh HH HH HH gà ngờ

53

6.2

Limit of sludge solid content ratio svc sssccssersecsecseestesetessnsssseeseseeessvesney

53

7.

Case

where

DI

II TS 0

waters

are mixed

for USO reccccccccceceecceseseeecceevecssssnensessesssseseeseoeses

nao ng...

...............


53
53

53

8.1

Water other than that from publie water supplÌy -----------------serrehetheeensee

53

B.2

Recycled water --..................................oĂ như

58

Related standards nh

. . .....

(v)

..

Hee

.... ...

61



UDC

JAPANESE

ty
()

INDUSTRIAL

Ready-mixed

STANDARD

('))

This Standard

does

not specify

A 5308-1993

specifies the ready-mixed
concrete") delivered to the

transportation,


curing of the concrete after delivery.

Remarks

11S

concrete

1.
Scope
This Japanese Industrial Standard
concrete (') (herenfter referred to as "ready-mixed
of discharge.
Note

666. 972. 05

The standards
Table 1.

2.

The units and numerical values given in { } in this Standard
are based on the International System of Units (SD and are
appended for informative reference.
the traditional

units

Standard, shall be changed

values from April 1, 1995.

are shown

and

1.

And,

cited in this Standard

placement

point

and numerical

in Attached

values

in this

to the SI units and numerical

2.
Types
The types of ready-mixed conerete shall be classified into ordinary
concrete, lightweight concrete and road concrete, and shall be those indicated by

© marks in Table 1 and Table 2, which are combined with the maximum size of
coarse aggregates, slump and nominal strength.
_ As for the following items, the purchaser can designate by the agreement with
the producer.

basi

(1)

Type of cement

(2)

Type of aggregates

(3)

Maximum

(4)

Class of aggregates according to alkali-silica reactivity. Method of
restraining alkali-aggregate reactivity if Class B aggregates are used.

(5)

Type of admixture

(6)


Upper limit of chloride content when it differs from that prescribed in 3.2

(7)

Material age that guarantees nominal

(8)

Air content when it differs from that prescribed in Table 4.

(9)

In the case of lightweight

size of coarse

aggregates

materials

concrete,

strength

unit mass

(10)

Highest


(11)

Upper

limit of water-cement

(12)

Upper

limit of unit water

(13)

Lower or upper limit of unit cement content

(14)

In the case of flowing concrete, the incrensed
ready-mixed concrete before flowing (*)

or lowest

temperature

of concrete

of the concrete

ratio


content

value of slump

from

the


2
-A 5308-1993
Note

(2)

In the case where the purchaser designates

the total alkali content in (4), he shall inform

the alkali content (kg/m) intermixed
plasticizing admixture.
(15)

Other

the method based on
the producer

on


through the use of a

requirements

Remarks:

Items (1) to (6) shall be designated
in this Standard.

Table

1.

within

the ranges

specified

Types of ready-mixed concrete
(Apply until March 31, 1995)

Ordinary concrete

.

Mox. size of

Slump


887080100

em

conrao

160 | 180 | 195 | 210 | 225 | 240 | 255 | 270 | 300 | 350 | 100 | Flexure 15
—|

©G)|

5

20, 25

I9

Nominal strength

©|O|-lLOIOCO|IO|IC|C|C|IOIC

—

15, 18

—JOl—=}|O|C|C|ICO|ICOlolole

-


21

=l|-=|-lololololclol-|-|

a

ofopefo|alo

5

Road concrete
Note

(3)

20

8,

| 10

-

elol-lalolol-lelol-l-=.
ope

-

Slol-leslolol-lelsl-l-l


18

15,

—

— | —

—|—

—|]

—Ì

8, 10, 12

12, 15

LighLxsr ight concrete

| —Ì

—

12,

15,

18,


21]

-

25, 6.5

¬

-

CO]

--

("|

ca

T

Cy

mm

m

-J-~ | —l-|-|-l-T-

Shall be abolished


Table 2.

on April

-

|-I-l1-E

1, 1995.

Qe

Type of concrete

Types of ready-mixed concrete
(Apply from April 1, 1995)

Type of concrete

sean

™

em

mm
Ordinary concrete

20,25


—

5

8, 10, 12
15,

40

18

5

8

Lightweight coneretel15, 20
Rosd concrete

40

| —|—

|

—Ì

2, 15

—- |


Ta
—-

|

‹
—-|Ì

a]7
—_ |

30 | 3 5

|:

—-_|

6.5

40 | Flexure t_5
—

—

—

~|O|I-|O|IO|IO|IC|IC|

O|OICG


—

©Ø|O|C|Ol|_-|—

olol-lololol-lelol-l|-|

-

©lOI-|OS|S|lol-|c©|Ol|-l|l|
ẽẻTẽ-T_T—T-T
-Í!I_-|_-| TT

-

-

©[JGCG|I—-—|C|O|IO|I-l|C

|Cl|I—l|-

18, 12 15, 18, 21—-/oOl—-lalololololol—
2.5,

|

—Ì

elol-lolololololololel
—|—|—ỊO


21

18

16 | 18 |19.5]: 21 [22.5wa

— | —|—

| —|

—- | —Ì

—- | —|

|-|]

—|_-l|-

=

©


A 5308-1993

ry
3.

Quality


3.1
Strength, slump and air content
The strength, slump
the ready-mixed concrete shall satisfy the following conditions
discharge.

(1)

and air content
at the point of

of

Strength
Strength of the readly-mixed concrete, when it is subjected to
the strength tests (*) specified in 8.2, shall satisfy the following requirements:
Note

(4)

Material

(a)

The results of one-time test shall be 85 % or over of the nominal
strength values (°) designated by the purchaser.

(b)

Mean values of the results of three-time tests shall be at least the

nominal strength values (*) designated by the purchaser.

Slump

of the

specimen

for

the

(5)

test shall

he

28

of days

The values shall be expressed by kgf/em? (N/em’}.

The slump shall he as specified in Table 3.
Table 3.

Stump

Slump


Unit:

tl

5 and 6.5

7

8 or over up to and inel.

+ 1.5

18

2

Nà

cm

Tolerances in slump

2.5

(3)

strength

days in the case of no designation of 2. (7), or the number

designated by the purchaser.

Note

(2)

age

+ 2.5

có

CB

Air content
Air content shall be as specified in Table 4. Tolerances on
air content shall be as specified in Table 4, also relative to the value

designated by the purchaser.

Table
Type of concrete
Ordinary

concrete

4.

Air content


Unit: %

Air content

Tolerances on air content

4.5

+ 1.5

Lightweight concrete

5.0

Road concrete

4.5

3


4
A 5308-1993
Chloride

3.2.

The

content


chloride

ready-mixed

content in the

shall

concrete

be 0.30 kg/m? or under as chloride ion (Cl-) content at the point of discharge.
However, it may be increased up to 0.60 kg/m? or under with the approval of the
purchaser.

Volume

5.

Proportion

5.1

volume

The

4.

volume


of the ready-mixed

concrete

shall

entered in the delivery sheet at the point of discharge.

not fall short of the

The proportion of the ready-mixed concrete shall be determined by the

producer

so as to satisfy the requirements

in 2. upon

designated

agreement

with

the purchaser and the quality specified in 3., as well as to pass the inspection of
9.

5.2


mixed

The producer shall submit the report on composite proportion of readyconcrete

shown

general rule, be made

in Table

10 to the purchaser.

The

submission

shall,

prior to the delivery of the ready-mixed concrete.

as a

5.3.
The producer, as requested by the purchaser, shall submit the data as a
basis for planning concrete proportions, calculating the chloride content of the
concrete and for formulating the measures for restraining alkali-reactivity of
aggregates.

6.


Materials

6.1
Cement
standards:

The cement used shall conform to one of the following

(1)

JIS R 5210

(2)

JIS R

(3)

JTS R 5219

(4)

JIS R 5213

6.2

Aggregates

5211


The aggregates shall conform to Annex

1.

When the aggregates of Class B in Annex 1 are used, one of the measures for
restraining the alkali reactivity of aggregates specified in 3. [Restraining
measures using portland cement (low alkali type)], 4. [Restraining measures using
mixed cement with effects restraining alkali reactivity of aggregates] and 5.
[Restraining measures by delimiting total alkali content in concrete] of Annex 6.

shall be selected and put into execution.
Water

6.4

Admixture

(1)

The admixture materials shall not be those which
concrete and steel.

following:

The

water

materials


shall conform
The

to Annex

admixture

9.

materials

shall conform

to the

adversely affect the
e

6.3


UT

wa

(2)

The admixture
purchaser.


(3)

Fly ash, expansive additive, chemical admixture
used, shall conform to the following standards:

bow

ta

7.
7.1

materials

(a)

JIS A 6201

(b)

JIS A 6202

(c)

JIS A 6204

(da)

JTS A 6205


Manufacturing

shall be those

which

are approved
and

by the

corrosion

inhibitor.

methods

Manufacturing

equipment

7.1.1
Equipment for storing materials
shall be as given in the following:

The equipment

for storing materials

(1)


The equipment for storing cement shall be divided by manufacturers
types, and be capable of preventing the cement from weathering.

(2)

The

storing equipment

for aggregates

shall be comparted

according

and
to the

types and classes, and be capable of preventing segregation of large and
small particles. The floor shall he constructed of concrete and the like, and
measures shall be taken for drainage as well as for prevention of ingress of
foreign matters (°).
In addition, the equipment shall be capable of storing the amount of

aggregates

corresponding

the concrete.

Note

(°)

to the maximum

delivery

for one day or over of

In the case of storing artificial lightweight aggregates,
necessary to provide sprinkling equipment.

it is

(3)

The

(4)

The storing equipment for admixture materials shall be comparted
according to the types and classes, and shall prevent the deterioration of
the quality of the admixture materials.

7.1.2

if

storing equipment


and

the equipment

for transporting

the aggregates

from the storing equipment to the batching plant. shall be capable of
furnishing uniform aggregates.

Batching plant

The batching plant shall be as follows:

(1)

The plant shall generally be provided
respective materials.

with separated storing bins for

(2)

The measuring devices shal] have precision for weighing out respective
materials within errors specified in 7.2.
In addition, they shall be provided with indicating devices capable of
indicating the measured values with the precision mentioned above.


or

A 5308-199:


6
A 5308-1993
(3)

All the indicating

devices

shall be located

at places

visible

(4)

The measuring devices shall be capable of successively
materials for concrete of different proportions.

(5)

The measuring devices shall be provided with devices which readily correct
the measured values by the surface water content of fine aggregates.

and the measuring devices shall ensure easy operation.


7.1.3

Mixer

(1)

The

mixer

(2)

The

mixer,

Note

(7)

to the operator,

measuring

the

The mixer shall be as given in the following:
shall be of a stationary
when


mixing

type.

the concrete of a defined

slump

at the volume

specified in 7.3 (2) shall be capable of mixing the materials thoroughly and
discharging them under a uniform condition (7).
The mixer may be considered to possess performance of mixing

the concrete uniformly, when a defined volume is mixed for a
defined time and the values obtained by the tests in accordance

with JIS A 1119 do not exceed the values given below.
-

ˆ

Mass

difference in unit volume of mortar contained in

COnCFTGEE ‹‹c- Án

HH


nh nh min

4 6 v8

0.8

%

Difference in unit coarse aggregate quantities contained in
COTICrOLE

eee cence ees tencececceensccerccenssensesseonssrerensenaees

7.1.4
Transport vehicle
following:
(1)

In the transportation

(b)

%

The transport vehicle shall be as given in the
of the ready-mixed

the following performances


(a)

5

shall be used.

concrete,

a truck

agitator having

The transport vehicle shall be capable of maintaining a thorough
uniformity of the mixed concrete, and of discharging it readily and

completely without causing segregation

of materials.

The

test is carried

transport

vehicle, when

the slump

out on the


samples taken (°) from about + and about --4 of the depth of the load,
shall have such performance that the difference of slumps between
the two samples is within 3 cm.
(Œ}

In this case, samples shall be taken as in cutting the full
section of the respective

unloaded.
(2)

part in the flow of concrete being

The dump truck can be used only for transporting road concrete having a
slump of 2.5 cm.
The bed of the dump truck shall be flat, smooth and waterproof and, as
required, shall have a waterproof cover for protection from rain and wind.

ĐỘ

Note


go>

Eo

A 5308-1992
7.2


7.2.1

Measurement

of materials

Measuring methods

The measuring

following:

(1)

The cement, aggregates, water and admixture
respectively with separate mensuring devices.

And, water may be measured

which

(2)

have

been

measured


Measurement of cement,
mass. With the approval
materials may be made
a quantity less than one
fail.

(3)

cumulatively

error

materials

shall be measured

with the chemical

in advance.

admixtures

aggregates and admixture materials shall be in
of the purchaser, measurement of the admixture
by the number of bags. However, in the case where
bag is used, it shall be measured in mass withont

The

measuring


error shall be as given in the

The measuring errors of the cement, aggregates, water and admixture
materials shall be as given in Table 5. for one measuring quantity.
Table 5.
Type of material

Measuring error of the materials
Measuring error for ane measuring quantity

Cement

“¿

+1

, Aggregate

"%

:

£3

Water

SỐ

£1


Admixture material
Chemical

(2)

shall be as given in the

Measurement of water and chemical admixtures shall be in mass or in
volume. However, chemical admixtures shall be measured in the form of
solution.

7.2.2
Measuring
following:

{1)

methods

20

admixture

—_

+3

Calculations of measuring errors shall be made by the following formula,
and rounded off to integers by JIS Z 8401.

Mla

—

Wty

mo = ————
nh

where,

x 100

Mo

:

measuring error (%)

m,

:

aimed

mo

o:

mensnred


one

measuring
ont

value

quantity

{


8
A 5308-1993
7.3

Mixing

(1)

The ready-mixed concrete shall be mixed uniformly in the plant with the
mixer specified in 7.1.3.

(2)

Mixing quantity and mixing time of the concrete shall
carrying out the test as specified in JIS A LLL9 (7).

7.4


Transportation

(1) —

The

transportation

(2)

The

concrete

(3)

In the case of transportation of concrete with a dump truck, the limit of the
transporting time shall be 1 h from the start of mixing.

made

The mixing shall be as follows:

as follows:

The

transportation


of the

ready-mixed

transport vehicle specified in 7.1.4.
shall be transported

be determined

of the ready-mixed
conerete

shall

be made

so as to be discharged

the start of mixing. However, upon agreement
limit of the transporting time may be altered.

concrete

after

shall be

by the

within


1.5 h from

with the purchaser,

the

7.5
Quality control
The producer shall conduct necessary quality control for
guaranteeing the quality of concrete specified in 3.
And, the producer, as requested by the purchaser, shall submit the test results
of the quality control tests.
8.
8.1

Test methods
Sampling method

A 1115.

However,

when

The sampling method shall be in accordance

samples

are to be taken


from

a truck

agitator,

with JIS

they may

be obtained after the concrete is mixed at high speed for 30 s with the truck
agitator, from a full section of the flow of concrete with the exception of 50 / to
100 2 of concrete discharged first.

8.2

Strength

8.2.1
Compressive strength
The compressive strength test shall be performed
in accordance with JIS A 1132 and JIS A 1108.

And the dimensions of specimens shall generally be 10 cm in diameter and

20 cm in height for the coarse aggregates having maximum

size of 15 mm, 20 mm


or 25 mm, and shall be 12.5 cm in diameter and 25 cm in height or 15 cm in
ciameter and 30 cia in height for the coarse aggregates having maximum size of
40 mm.

The specimens shall be subjected to the water curing at 20 + 3°C (°).
Note

(°)

In the case where the accumulated temperature method is to be
used for the winter concreting, the curing of the specimen shall

be the water

curing at 20 + 32°C.


Lows

~—

9
A §308- 1993

Remarks:

bey

Before March


weight

load

31, 1995, when

is indicated

the test equipment in which

by ST unit

is used,

strength is obtained by the following:
maximum
to the

.

weight

significant

load by 9.80665,
Gpures

the compressive

the


Divide the measured

round

of 3 dipits.

it off by JIS

and

taleing: this

Z 8401

vale

as

“maximum weight load indicated by the test equipment” by
the traditional unit, calculate the compressive slrength by the
formula of JTS A 1198,
8.2.2
Flexural
aecordance with

The

strength
ITS A 1132


specimens

shall

Remarks:

The Mexural strength
and JIS A 1106.

be subjected

Before

March

to the water

31,

1995,

test

shall

curing

when


the

be

at 90

performed

3©

in

C9,

test equipment

in which

weight load is indicated by SI units, is used, the flexural
strength is obtained by the following: Divide the measured

the

maximum weight load by 9.80665, round it off by JIS Z 8401

to the significant figures of 3 digits, and taking this value as
“maximum weight load indicated by the test equipment” hy
the

traditional


unit, calculate

formula of JIS A 1106.

test shall be in accordance

flexural

strength

by the

8.3

Slump

8.4

Air contenE — The air content test shall be in accordance with one of JIS

A

The slump

the

with JIS A LOL.

1128, JIS A W118 or JIS A TIS.


8.5
Chloride content
The chloride content of the concrete shall be determin.
ed as the product of the chloride ion concentration in water in the freshly mixed
concrete and the unit water content () used in designing the proportion. The
test of the chloride

be

carried

out

ion concentration

in accordance

with

in water

Annex

5.

in the freshly

[lowever,


concentration test may, by permission of purchaser,
content measuring apparatus with known accuracy.

Note

(')

the

mixed

chloride

be performed

conerete

shall

ton

using a salt

This shall be the value shown in Proportion Table of Table
(report on proportion of ready-mixed concrete).

10

8.6
Volume

The volume of the ready-mixed concrete shall be obtained by
dividing a total loaded mass of one transport. vehicle by the unit volume mass,
The total loaded mass of one transport vehicle shall be calenlated either as the
total

sum

of the masses

of all the materials

used

in its load, or from

the

difference of masses of the transport vehicle before and after discharge.
Remarks:

‘The test for unit volume

A 1116.
A

1128

However,

is known


when

exactly,

mass

shall

be in accordance

with

the volume of the vessel by JIS
the

vessel

may

he used.

JIS


10
A 5308-1993
9.

Inspection


out on the strength,

be carried

The inspection shall
Inspection items
9.1
slump, air content and chloride content.

9.2
Strength
The concrete shall be subjected to the strength test of 8.2,
the size of aninspection lot determined by agreement between the purchaser
supplier, and the product conforming to the requirements of 3.1 (1) shall be

with
and

judged acceptable.
-The

number

of tests shall generally

The results of one-time

specimens


prepared

from

be one per 150

mở.

test shall be expressed by a mean

a sample

taken

from

an arbitrary

test value of three

transport

vehicle.

9.3.
Slump and air content
The slump test and the air content test shall
carried out in accordance with 8.3 and 8.4, as required, and the product

be


conforming respectively to the specifications of 3.1 (2) and 3.1 (3) shall be judged
acceptable. In these tests, when the results of one or both of the slump and air
content tests fail out of the allowance of them, a new sample shall be taken in
accordance with 8.1, and shall be subjected to test for only one-time in accordance
with 8.3 and 8.4, and

if the results conform

respectively

to the specifications

3.1 (2) and 3.1 (3), it shall be judged acceptable.

of

9.4
Chloride content
The inspection method for chloride content of the
concrete shall be determined by agreement between the purchaser and supplier
and carried out according to 8.5, and the product conforming to the requirements
of 3.2 shall be judged acceptable.
Remarks:

The inspection on the chloride content may be made at the
time of shipment from the plant, because it should be possible
enough

to satisfy the specified


discharge.

conditions

even

at the point of

9.5
Designated items
The items designated in 2. by the purchaser shall be
matters for inspection to be made by agreement between the purchaser and
supplier.
10.

Designation

type of concrete,

coarse aggregates,
Example:

and

The ready-mixed concrete shall be designated by symbols by

symbols

by nominal


strength,

and symbol by type of cement.

Ordinary
Lightweight Class2

slump,

210

8

20

N

rT

21

15

TT

270

and


maximum

size of

H

Symbol

by type of

cement

Symbol by maximum
of coarse

aggregates

Slump
Nominal
Symbol

strength

by type of concrete

size


11
A 5308-1998


The symbols to be used for designating the ready-mixed concrete shall he as

shown in Table 6 to Table 8.

Table 6.
Type of

concrete

Ordinary

concrete

Symbol

Coarse

by type of conercte
Fine aggregates

aggregates

Symbol

Gravel, crushed | Sand, crushed sand, blast-furnace
stone or blastfurnace slag

|slag fine aggregates
slag fine aggregates


or ferrn-nickel

Artificial light-

|Sand, crushed

blast-furnace

aggregates

slag fine aggregates

coarse

Ordinary

aggregates

Lightweight

concrete

weight coarse

sand,

Lightweight

|slag fine aggregates or ferro-nickel


Class 1

Artificial light- | Artificial lightweight fine aggregates, | Lightweight
weight coarse
aggregates

or artificial lightweight fine
aggregates partially mixed with sand,

Class

crushed sand or blast-furnace slag
fine aggregates or mixed with ferro-

nickel slag fine aggregates
Road

concrete

Gravel,

crushed

stone or blastfurnace slag
coarse

Sand,

crushed


sand,

Road

blast-furnace

slag fine aggregates or ferro-nickel
slag fine aggregates

ageregates

Table 7.

Symbol

Maximum

by maximum

size of coarse

size of coarse aggregates

aggregates

Symbol

15 mm


15

20 mm

20

25 mm

25

40 mm

40

sóc

2


12
A §308-1993
Table

8.

Symbols

by types of cement

Type

Ordinary

portland cement

Ordinary

portland

High-early-strength

111

(low

alkali

type)

NL

portland cement

H

High-early-strength portland cement (low alkali type)

HL

Ultra high-early-strength portland cement


UH

Ultra high-early-strength portland cement (low alkali type)

UHL

Moderate heat portland cement

M

Moderate heat portland cement (low alkali type)

ML

Sulfate-resisting portland cement

SR

Sulfate resisting portland cement (low alkali type)

SRL

. Portland blast-furnace slag cement Class A

BA

Portland blast-furnace slag cement Class B

BB


Portland blast-furnace slag cement Class C

BC

Portland pozzolan cement Class A

SA

Portland

pozzolan cement Class B

SB

Portland pozzolan cement Class C

SC

Portland fly-ash cement Class A

FA

Portland

fly-ash

cement

Class


B

FB

Portland

fly-ash

cement

Class

C

FC

Report

delivery

Delivery sheet for ready-mixed concrete
sheet

to the purchaser

on each occasion

The producer shall submit the

of transportation


for each

transport vehicle. The standard form of the delivery sheet for ready-mixed
concrete shall be as shown in Table 9.
11.2

Report

on proportion

of ready-mixed

concrete

and

basic information

The producer shall submit the report on proportion of ready-mixed concrete to the
purchaser

as shown

in 5.2 (refer to Table

10).

And the producer, on request of the purchaser, shall present the basic
informations on design of proportion and the like as shown in 5.3.


BC.

11.

N

a

`

cement

Symbol


13
A 5308-1993

ea

Table 9
Delivery Sheet for Ready-mixed

Concrete
Na.
Month

day


year

Mr
Name

of manufacturer

and plant

Place of delivery
Transport vehicle number
Time of delivery

Departure

(To the minute)

Arrival

(To the minute)

—-

Delivery volume

m?
Symbol

by type


of concrete

Nominal

strength

Slump

officer's

signature

Total
Symbol

by

nv
Symbet

by type

maximum size of | of cement
coarse arpregates

Designation

Receiving

—


Shipping person's signature

Remarks

Remarks:

Size of form shall be A 5 (148 x 210
specified in JIS.

mm)

or B 6 (128 x 182

mm)


14

A 5308-1993
-

Table

10

Report on Proportaion of Ready-mixed

Concrete
No.

Month

day

year

Mr.
Name of manufacturer
Name

of person

and plant

in

charge of proportioning
Name

of work

Location
Appointed time of delivery
Applicable period of this proportion
Placing point of concrete
Designing conditios of proportion
Symbol

by type


Nominal

of concrete

Unit mass of lightweight concrete

items (")

Materiat

(kg/m?) (Um"}}

Highest
Lovet

Temperature of concrete
Designated

Slump

strength

age guaranteeing

Upper limit value of water
cement ratio

Increase in slump
plasticized


|

kgim?|]

value after

Symbol

by type

of cement

Air contnet

%

Method

of restraining

a

alkali

reactivity of aggregates ("*)

Upper or lower limit value of unit

kgim”


mass of cement

gm

Chloride content in concrete

kg/m? max.

cm

Materials

Cement

®8Y]
“|

Upper limit value of unit water

of coarse aggregates

¬m
.
ĐH
C| Types of admixture
materials
4

nominal strength


Syinbol by mexiinum size]

é__

Designation

manufacturer

used (7)

Specific gravity

Na;Oeq

09
Absolute

Origin or
designation

Class by
ASR (5)

sẽ
23

a>
3S

iE


SẼ

At

9

Co

gates

Class by

designation

22>

z3 s5
—= p8 3
posy

Chemical
admixture

Name

of praduct

.
Type


Admixture

Name

of product

Type

3 SE

|ä

|Surface
dự
dry

sẽ 3

ASR (#*)

wee
Absolute

Absolute

s Ẹ

aggre. Qrigin or


S

—_—

Agpregates

sẽ
be
12 6

li

Nbsolute
lSuyp

dry

Chloride
agrreratescontent of fine

_*

Class of water

Proportion Table (kg/m*) ('")
Water

aggregates

tatio


Remarks

at

Water-cement

Percentage of
fine negregates

Fine

Coarse

aggregates

aggregates

a

Cement

Fino

Coarse

aggregates

Chemical


admixture

Admixture

materials


15
A §308-1993
Notes ("')
('*)

Particularly designated items other than those given in the column
of designation shall be entered.
With

symbols

in Annex

§ Table

| shall be entered,

the aggregates of Class A in Annex

entered

en


1 are used, symbol

in that column.

(8)

Materials used in proportion designing shall be entered.

(1)

Enter only when

(1)

The

cs)

This column

Remarks:

logy

Tlewever,

the portland

cement


class by alkali-silica reactivity

for determination shall be entered.
shall be expressed

by

when

A shall be

is used.

(ASR)

and

the mass

the

test method

of absolute

used

dry condition

for artificial lightweight aggregates, and by the mass of saturated

surface dry conditions for other aggregates.
Size of form shall be A 4 (210 x 297

specified in JIS.

mm)

or B 5 (182 x 257

mm)


t

16
A §308-1993
Attached

Table

1.

Cited

standards

JIS A 1101

Method of test for slump of concrete


JIS A 1102

Method

of test for sieve analysis of aggregates

Method

of test for amount of material passing standard sieve 75 um

JI5 A 1108

in

aggregates

JIS A 1104

Method of test for unit weight of aggregate

JIS A 1105

Method

of test for organic

JIS A 1106

Method


of test for flexural strength of concrete

JIS A 1108

Method

of test for compressive

JIS A 1109

Method

of test for specific gravity

JIS A 1110

Method

of test for specific gravity and absorption of coarse

aggregate

impurities

and solid content in

in fine aggregate

strength of concrete
and


absorption

of fine aggregate

JIS A 1115

Method

of sampling fresh concrete

JIS A 1116

Method

of test for unit weight and air content (gravimetric) of fresh

Method
method

of test for air content of fresh concrete by the volumetric

concrete

JIS A 1121

Method of test for variability of constituents
concrete

in freshly mixed


Method

of test for resistance to abrasion of coarse aggregates by use

JIS A 1122

Method

of test for soundness of aggregates by use of sodium sulfate

JIS A 1126

Method
scratch

of test for soft particles in coarse aggregates by use of

tester

JIS A 1128

Method

of test for air content of fresh concrete by pressure method’

JIS A 1129

Methods


JIS A 1132

Method

JIS A 1134

of the Los Angeles machine

Methods

weight

of test for length change of mortar and concrete
of making and curing concrete specimens
of test for bulk specific gravity and absorption of light

fine aggregates

for structural

concrete

JIS A 1135

Methods of test for bulk specific gravity and absorption of light
weight coarse aggregates for structural concrete

JIS A 1137

Method


JIS A 5002

Light weight aggregates for structural concrete

JIS A 5005

Crushed

JIS A 5011

Slag aggregate for concrete

JIS A 6201

Fly ash

JIS A 6202

Expansive

BL

JIS A 1119

of test for clay contained in aggregates

£

stone and manufactured sand concrete


_

JISA 1118

E

aggregates

additive for concrete


c

17
A 5308-1993
JIS A 6204

Chemical

admixtures

JIS A 6205

Corrosion

inhibitor for reinforcing steel

JIS B 7503


Dial gauges

JIS

Testing

K ool

reading

methods

for

for concrete
in 0.01

in concrete

mm

industrial

water

JIS K 0113

Genera! rules for methods of potentiometric,
coulometric, and Karl-Fischer titrations


JIS K 8576

Sodium

JTIS P 5801

Filter paper (for chemical

JIS R 5201

Fhysical

JIS R §202

Method

JIS R 5210

Portland cement

JIS R 5211

Portland blast-furnace slag cement

JIS R 5212

Portland pozzolan cement

JIS R 5213


Portland fly-ash cement

JIS Z 8401

Rules for rounding off of numerical

JIS Z 8801

Test

amperometric,

hydroxide

testing methods
for chemical

sieves

analysis)

for cement

analysis of portland

values

cement



18
A 6308-1993
Annex
1.

Scope

2.

Types

(hereafter

aggregates,

1.

Aggregates

This Annex specifies the aggregates for ready-mixed concrete

referred

to as aggregates’).

Types of the aggregates

artificial lightweight

shall be crushed stone, crushed sand, slag


aggregates,

3.
Crushed stone and crushed sand
shall be those given below as specified

(1)

for ready-mixed concrete

gravel

and

The crushed
in JIS A 5005.

sand.

stone

and

crushed

sand

Crushed stone


+

(a)

Crushed stone

4005

(b)

Crushed stone

2505

(c)

Crushed stone

2005

(d)

Crushed

stone

4020 (')

(e)


Crushed

stone

2515 (')

(Ð

Crushed

stone

2015 (')

(g)

Crushed

stone

1505 (')

In addition, the limit of abrasion loss for those to be used in pavement

slabs shall be 35 %, and the limit of quantity of soft stone flake content
shall be 5.0 %.

(2) :

(')


It shall be used in mixing, and the particle size of the mixed one
shall conform

Crushed sand

which surfaces undergo
test shall be 5.0 %.

Blast-furnace

-

2505

or 2005

in Table

4 of JIS A 5005.

For the crushed sand for pavement slabs and concrete of

4.
Slag aggregates
specified in JIS A 5011.
(1)

to 4005,


abrading

action,

the limit of loss in the washing

The slag aggregates shal] be those given below as

slag coarse

aggregates

(a)

Blast-furnace slag coarse aggregates

4005

(b)

Blast-furnace slag coarse aggregates

2505

(c)

Blast-furnace

slag coarse


aggregates

2005

(d)

Blast-furnace

slag coarse

aggregates

4020

(2)

Further, the limit of loss in the washing test shall be 5.0 % (°).
In addition, the limit of abrasion Joss for those to be used in pavement
Slabs shall be 35 %.

é

Note