Abstract
The definition of self-compacting concrete is briefly introduced. The research process of self-compacting concrete in various countries in the world is studied, from the initial test to the final formation of the preliminary application specification, and it is constantly improved. The mix proportion design, working performance, testing method, application and research status of self-compacting concrete are discussed in detail, and the problems to be solved in the future and the development prospect are prospected
Highlights
Self-Compacting Concrete (SCC) has high fluidity, nonsegregation, uniformity and stability, which can fill the formwork space uniformly under the action of selfweight, without external vibration[1]
Central South University, Tsinghua University, Shandong Institute of Civil Engineering and Architecture, Suzhou Institute of Concrete and Cement Products, Fuzhou University, Wuhan Institute of Urban Construction and other scientific research institutions have studied SCC, but each has its own emphasis: Central South University mainly carried out research on admixture, workability and durability[7]; In Tsinghua University, the engineering test of SCC with compressive strength of 80 MPa was carried out[8]; Suzhou Institute of Concrete and Cement Products has conducted research on preparation methods[9]; Fuzhou University has conducted research on mix design, etc.[10]; On the basis of a large number of studies, China has issued codes and standards for the design and application of SCC
The existing methods of preparing SCC are mainly based on experience, and the mix proportion design is mostly based on the experience of Japan, Netherlands, France and Sweden
Summary
Self-Compacting Concrete (SCC) has high fluidity, nonsegregation, uniformity and stability, which can fill the formwork space uniformly under the action of selfweight, without external vibration[1]. Central South University, Tsinghua University, Shandong Institute of Civil Engineering and Architecture, Suzhou Institute of Concrete and Cement Products, Fuzhou University, Wuhan Institute of Urban Construction and other scientific research institutions have studied SCC, but each has its own emphasis: Central South University mainly carried out research on admixture, workability and durability[7]; In Tsinghua University, the engineering test of SCC with compressive strength of 80 MPa was carried out[8]; Suzhou Institute of Concrete and Cement Products has conducted research on preparation methods[9]; Fuzhou University has conducted research on mix design, etc.[10]; On the basis of a large number of studies, China has issued codes and standards for the design and application of SCC. SCC mixed with steel fiber and organic fiber, lightweight aggregate SCC, rockfill SCC, airport pavement SCC and limestone powder SCC, etc.[15], and "sandwich", namely SCC-NMC-SCC sandwich construction system[16], etc.; Performance is constantly improved and diversified, such as no shrinkage or low shrinkage, low hydration heat (large volume) and early strength
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