Research on Preparation of Ultra-High Strength & High Performance Concrete with Low Quality Fine Aggregate

This paper researches on the feasibility of preparing ultra-high strength & high performance concrete with low quality fine aggregate, such as super fine sand (fineness moduls≤1.10), chippings and manufactured sand. The results shows: with low quality fine aggregate, ultra-high strength & high performance concrete can be prepared, and with excellent fluidity and a compressive strength range of 70~120 MPa.