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Deterioration Promotion Test

Deterioration Promotion Test:

Measurement of pore size distribution by mercury injection method. Concrete cylinder specimen cut to 10 mm, and 3-5 mm crushed to concrete pieces. It was tested as a sample.

Mixing name

Design standard strength

W/B

Use mixture material

Ordinary concrete

24 N/mm2

54%

-

Ordinary concrete

40 N/mm2

40%

-

SW con

24 N/mm2

50%

Blast-furnace slag 4,000.(sw)SILICA WHITE : Specific surface 14,000cm2/g

SW con

40 N/mm2

40%

Blast-furnace slag 4,000.(sw)SILICA WHITE : Specific surface 14,000cm2/g

SWS con

80 N/mm2

25%

Blast-furnace slag 6,000.(sws)SILICA WHITE-S : Specific surface 60,000cm2/g

SWS con

100 N/mm2

20%

Blast-furnace slag 6,000.(sws)SILICA WHITE-S : Specific surface 60,000cm2/g

 

Table: Cumulative pore volume

From the graph it is clear that with use of silica cament admxture pore size reduces. Mainly on Blast-furnace slag 6,000.(sws)SILICA WHITE-S : Specific surface 60,000cm2/g, pore size is lower which shows that deterioration on concrete decreases with use of silica cement admixture