Item

Index

Appearance

White to yellow powder

Bulk denisty(g/l)

600±50

Ph value(20% water solution)

9.0±1.0

Water content(%)

≤3

Ignition loss(%)

≥86

Chloride content(%)

≤0.1

Test item

Unit

Specification

Water reducing rate

%

≥25

Bleeding rate 

%

≤60

Air content

%

≤6.0

Slump retention(1 hour)

Mm

≤30

Ratio of compressive strength

1d

%

≥170

3d

≥160

7d

≥150

28d

≥140

Ratio of Shrinkage

28d

≤110

Difference in setting time

Initial setting time

min

-90~+120

Final setting time

Number of cycles of resistance to freezing and thawing

Time

≥200