Latest Trends in High-Range AE Water Reducing Agents
(Single-Liquid Viscosity Agent Type, Shrinkage Reducing Type)
By T. Tsuchitani and K. Saito
Concrete Journal, Vol.51, No.3, Mar. 2013
- Synopsis
- A chemical admixture for concrete that is attracting attention recently is single-liquid viscosity agent type high-range AE water reducing agent obtained by combining viscosity agent and high-range AE water reducing agent, which allows the manufacture of viscosity agent type self-compacting concrete without having to separately add viscosity agent. Another one is shrinkage reducing type high-range AE water reducing agent obtained by combining shrinkage reducing agent and high-range AE water reducing agent, which can reduce drying shrinkage strain by about 5% to 15% compared with concrete that uses conventional high-range AE water reducing agent. This paper describes the features and advantages of these two types of chemical admixtures.
- Keywords:
- self-compacting concrete, high-range AE water reducing agent, single-liquid viscosity agent type, shrinkage reducing type
