Admixtures
Posted by khaled on January 31, 2007
What are the admixtures added to mass concrete?
It would depend on the type of structure build using the mass concrete. For mass concreting structures like dams, typical admixtures that could be used may include air-entraining admixtures, water reducers, retarding admixtures, surface retarders etc.
The selection of an admixture is also influenced by the things you want to control. If thermal cracking is the primary issue then a low cement factor and the use of a set controlling admixture would be beneficial. If the issue is cold joints during placing then a retarder would be in order. Each set of circumstances has to be evaluated and decisions made based on the end result you are looking for.
