Influence of crushed stone aggregate type on concrete consistency

Abstract

The main reason for usage of crushed stone mineral aggregate is need for concrete construction building with care about environmental protection, water resources, etc. Influence of crushed stone mineral aggregate on concrete consistency is considered in this paper. River aggregate is used as a benchmark, and from crushed aggregates: limestone, andesite, diabase and basalt. The drawn conclusion is that fine crushed aggregate has an important influence on concrete consistency because it decreases concrete's workability and placing. Replacement with river aggregate improves concrete consistency. Coarse aggregate type also has an influence on consistency. Further investigations should be based on possibility of fine crushed aggregate usage for SCC production.

Keywords

• consistency
• crushed stone aggregate
• river aggregate
• limestone
• andesite
• diabase
• basalt