文摘

作用机理的掺合料对水泥加固土的强度

作者(年代):H。燕,H。Chen '施,J.Y.燕,X.H.He

水泥和各种掺合料用于治疗工程软土地基的沿海城市,改善土壤强度和维持工程建设的要求。在工程实践中,土壤成分不同,因为不同的起源和形成环境。因此,水泥加固土可能表现出不同的强度特征,不同的外加剂。在这项研究中,软土来自福州、珠海,营口被用来作为测试样本。物理性质,可溶性盐含量,有机质含量,土壤和其他基本参数进行了分析。室内测试也进行模拟软土不同掺合料的巩固过程。单轴抗压试验也进行机械指数来衡量。水泥水化反应的影响与不同有机质组成、granularmetric和水特征被认为是确定水泥加固土的作用机理不同的外加剂。结果表明,三个地区的软土中含有大量的有机物质和可溶性盐。单轴抗压强度增加和减水剂当完成代理使用。 However, the increased amplitude varied with different early-strength agents. The optimum effect was obtained when CaSO4 was added, and the sample was inseparable with high amounts of fulvic acid and humic acid. The same additive agent resulted in uniaxial compressive strength with low moisture content and high clay content. Thus, the basic properties of soft soil and its organic matter content should be considered in selecting the optimum admixture during cement consolidation in engineering.