In order to solve the problem of unstable performance and easy shrinkage and cracking of machine-made sand,it proposed the use of corrosion-resistant glass fibers to strengthen mechanical sand concrete.It designed 180 glass fiber reinforced-machine-made sand concrete specimens with different mix ratios,conducted slump tests,axial compressive strength tests,flexural strength tests and shrinkage tests.The influence and the impact principles of the substitution rate of machine-made sand and the content of glass fiber,on the work ability,mechanical properties,and shrinkage performance of glass fiber reinforced machine-made sand concrete was compared.The optimal substitution rate of machine-made sand for natural sand and the optimal dosage of glass fiber were obtained.Make an effort to promote the development and application of the glass fiber reinforced machine-made concrete sand.
关键词
玻璃纤维掺量/机制砂替代率/工作性能/力学性能/收缩性能
Key words
optimal dosage of glass fiber/substitution rate of machine-made sand/work ability/mechanical properties/shrinkage performance
维普
万方数据