Effect of Sugar on Setting-time and Compressive Strength of Ordinary Portland cement Paste


Volume :

4

Issue :

1

Abstract :

The use of sugar to delay setting of cement at construction site seems reasonable as it is cheap and readily available. But, addition of sugar has inevitable implications not only on setting time but also on compressive strength of cement paste. So, its effect needs to be well-understood for better control over its use. Test samples prepared by using 53 grade OPC cement and sugar in increasing proportion did not show a fixed result. Addition of sugar 0.07% by weight of cement resulted in 3 hours and 35 minutes delay in total setting time and around 4% increase in strength of cement. But, sugar content above 0.13% by weight of cement reduced setting time and sample was marked with cracks at the surface while hardening.

Keyword :

OPC-Ordinary Portland cement, Setting time, Compressive Strength
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