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The requirements of the high efficiency water reducing agent (1)

NO

test project

technical requirements

test methods

Standard type

retarded

1

water reducing rate

20%

according to GB8076 inspection

 

2

air content

<3.0%

according to GB8076 inspection

 

3

atmospheric exudation

rate

<20%

according to GB8076 inspection

 

4

pressure bleeding rate

than (used for preparation of pumping concrete)

<90%

by JC473 inspection

 

 

The

compressiv

strength

ratio

1d

>140%

/

according to GB8076 inspection

 

5

3d

>130%

/

according to GB8076 inspection

 

7d

>125%

>125%

according to GB8076 inspection