For Extending the Use of Mineral Admixture in Concrete
By S. Sogo, H. Kawano, T. Noguchi, S. Miyazawa and R. Chikamatsu
Concrete Journal, Vol.52, No.3, Mar. 2014
- Synopsis
- From the viewpoint of preserving the global environment and making efficient use of resources, the use of by-products in the field of construction to reduce environmental impact has become a social requirement. While by-products such as ground granulated blast furnace slag and fly ash have the effect of improving the quality of concrete and have long been used as blending components in blended cement, their use as mineral admixtures has been limited and more active use is desirable. The quality of ground granulated blast furnace slag and fly ash as concrete materials is covered by JIS. Japan Society of Civil Engineers guidelines and Architectural Institute of Japan guidelines, and the conditions for their use as mineral admixtures have been established, but it cannot be said that they are being widely used at present. This report sorts the issues that need to be addressed for the active use of these by-products for concrete admixture and proposes measures to expand their use.
- Keywords:
- concrete, mineral admixture, blending components, ground granulated blast furnace slag, fly ash, environmental impact reduction
