水泥土单轴抗拉强度试验研究

Research on the Cement Soil Uniaxial Tensile Strength Test

现代建筑物的高大发展趋势对地基土体的力学性能提出了更高要求.利用水泥对土的抗压、抗剪、抗拉等力学性能改善突出的特点,水泥土在地基加固、边坡处理、渠道防渗、抗渗等方面将有着广泛应用前景.为了探索水泥土抗拉强度随水泥掺量、龄期的变化规律,采用特制单轴拉伸仪,对不同水泥掺量和龄期的水泥土进行了室内单轴直接拉伸试验研究.结果表明:水泥土单轴抗拉强度较素土显著增强,随水泥掺量和龄期的不同,呈现出有一定规律的变化.

With the development trend of modern buildings, have higher demands on the mechanical properties of the foundation soil. The cement can improve the soil compression, shear, tensile and other mechanical properties, cement soil reinforcement in the foundation, slope treatment, channel impermeable, impermeability, and so on will be widely used. In order to explore the cement-soil tensile strength with cement content, age variation, with a special uniaxial tensile instrument, different cement content and the age of the cement-soil direct uniaxial tensile test. The results showed that the cement soil uniaxial tensile strength was significantly enhanced than that of plain soil, different with the cement content and age, the cement soil uniaxial tensile strength showed certain regularity. The conclusion was that positive explores the significance of cement-soil tensile failure theoretical research and practical engineering applications.