ABSTRACT

In order to minimise the risk of thermal cracking in concrete structures a knowledge of the expected temperature rise during the hydration of cement is desirable. The factors controlling the rate of temperature rise, the maximum temperature and the thus temperature distribution are com­ plex and many and include:

• Rate of heat evolution • Total amount of heat evolved • Proportion and composition of cement • Dimensions of pour • Environmental conditions - temperature, wind, humidity • Temperature of concrete at placing • Mix proportions • Aggregate type.