【摘要】 选取纳米硅作为水泥土的外掺剂 ,在大量试验的基础上 ,深入地研究了纳米硅水泥土的强度和变形特性。试验结果表明 ,纳米硅对水泥土强度的增强作用明显 ,对强度而言存在一合理的掺量范围 ,并应用正交试验和方差分析方法定量地分析了各影响因素对强度的贡献大小。最后讨论了水泥土的破坏应变、变形模量等指标与围压、抗压强度间的关系和统计规律更多还原

【Abstract】 With nanometer silica selected as cement-stabilized additives,compressive strength and deformation properties of cement-stabilized soil are discussed on the basis of a lot of laboratory tests. It is pointed out there has a proper nanometer silica content for compressive strength,and by using orthogonal test the magnitude of compressive strength influence factors are analyzed. At last the author discusses the statistical laws and relations between failure strain,deformation modulus and confined pressure,compressive strength of cement-stabilized soil.更多还原