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Effect of gypsum on properties and internal structure of PC paste

✍ Scribed by I. Soroka; M. Abayneh

Publisher
Elsevier Science
Year
1986
Tongue
English
Weight
585 KB
Volume
16
Category
Article
ISSN
0008-8846

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✦ Synopsis

Gypsum somewhat accelerated the rate of hydration of PC when added below the optimum SO 3 content, but produced significant retardanion when the addition exceeded the optimum.

At a given degree of hydration, or at a given BET surface area, strength of the paste increased with the increase in the SO 3 content of the cement.

No effect of the SO 3 content on the density of the hydration products and pore-size distribution was observed.

Further study is required to explain the effect of SO 3 content on strength.

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