Application of Self-Consolidating Concrete in Bridge Structures

摘要

The objectives of this research were to evaluate the feasibility and performance of self-consolidating concrete (SCC) made with local aggregates for use in cast-in-place and precast concrete application and to develop draft specifications, acceptance criteria, mix qualifications, and guidelines for use of SCC by SDDOT. Box culverts were designated as the first type of structures to be constructed using SCC. A study was conducted at South Dakota State University to determine the feasibility of constructing precast and cast-in-place box culverts in SD using SCC made with local aggregates. The research included literature search and review, development of SCC mix designs using SD local aggregates, aggregate testing, material testing of both fresh and hardened SCC properties, development of SCC special provisions in coordination with SDDOT staff and industry representatives and evaluation of constructability of SCC box culverts. Twelve SCC mixes were studied.