单轴压缩下泡沫混凝土的强度特性研究

Research on Strength Characteristics of Foam Concrete Under Uniaxial Compression

以水泥、粉煤灰、矿渣为胶凝材料,制备出不同气泡含量的泡沫混凝土。通过室内试验,对不同气泡率下(0~74.23%)的泡沫混凝土进行单轴压缩破坏试验,得到其不同龄期下的抗压强度和破坏形态,研究了泡沫混凝土的应力-应变曲线,探讨了抗压强度与龄期和气泡率之间的关系。结果表明:泡沫混凝土在单轴压缩下经过密实、弹性、屈服、破坏4个阶段;其抗压强度随泡沫含量的增大而减小,在一定范围内随着龄期的增大而增大。

Foam concrete with different slag as binding materials. The uniaxial of foam different （0-74. 23%） CU the relation ring ages ship betw content of foam was prepared with cemen compression tests on foam concrete under t, fly as different h and rates were conducted, and the compressive strength and failure morphology at were obtained. The stress-strain curves of foam concrete were studied, and een the compressive strength The results indicate that there are four stages namely the densification foam, the lower the com stage, presslv and curing age and rate of foam concrete under elastic stage, yield stage and failure e strength; in a certain range, the co of foam was discussed. uniaxial compression, stage; the higher content of mpressive strength increases with curing age.