Page 52 - CONCRETE MATERIALS AND MIXTURE
P. 52
1.3.3.4 Accelerators
The functions of accelerator are:
• Increase the rate of hydration of cement, and hence to
increase the rate of development of strength and greater
heat evolution
• To shorten the setting time
An increase in the rate of early strength development will
result in earlier removal of forms, reduction of curing and
earlier placement of structure.
The benefits of shorten the setting time are early finishing
of surface, reduction of pressure on forms or of period of
time during which the forms are subjected to hydraulic
pressure.
