高贝利特水泥高性能混凝土力学性能的研究

Study on mechnical properties of high-belite high performance concrete

本文研究了HBC高性能混凝土的抗压、抗折、劈拉强度 ,结果表明 ,和OPC混凝土相比 ,HBC混凝土具有良好的后期强度增长率和优异的抗折、抗拉性能。同时也探讨了HBC混凝土水胶比与 2 8d抗压强度的关系以及C50～C80强度范围内HBC混凝土 7d强度与 2 8d强度的关系。此外 ,对配制高强高性能HBC混凝土时粉煤灰的适宜掺量也进行了研究 ,结果表明在配制高强高性能HBC混凝土时粉煤灰最大掺量不宜超过 2 5%。

The compressive strength,bending strength and splitting tensile strength have been studied.The results indicate that HBC concrete has excellent late compressive strength and good properties resisting on bending and splitting.And the relation of water binder ratio with compressive strength at 28d has been studied too.In addition,the conclusion that the dosage of fly ash should not exceed 25%when producing high strength high performance HBC concrete has been achieved from experiment results.