CAJ | 학술논문

水泥土主要包括水泥加固土和水泥稳定土两大类。选用2种典型土样，分别配制高含水率的水泥加固土和低含水率的水泥稳定土，进行一系列的水泥土无侧限抗压强度试验，旨在分析水泥土的孔隙率、饱和度以及强度的变化规律，提出有效表征水泥土强度变化规律的参数。试验结果表明：水泥土孔隙率的大小与初始含水率、压实程度以及水泥水化产物生产量等相关；水泥土的饱和度随水泥掺入量或养护龄期的增加而降低；在常用的水泥掺入量范围(5%～20%)内，水泥土强度随水泥掺入量增加近似呈幂函数关系增大，水泥土强度与养护龄期的对数近似呈线性关系。基于试验结果，提出一个综合反映水泥掺入量、养护龄期以及孔隙率等因素对水泥土强度影响规律的综合表征参数，水泥加固土和水泥稳定土的强度均与综合表征参数呈幂函数关系。已有研究的试验数据也验证了提出的水泥土强度综合表征参数的有效性。
수니토주요포괄수니가고토화수니은정토량대류。선용2충전형토양，분별배제고함수솔적수니가고토화저함수솔적수니은정토，진행일계렬적수니토무측한항압강도시험，지재분석수니토적공극솔、포화도이급강도적변화규률，제출유효표정수니토강도변화규률적삼수。시험결과표명：수니토공극솔적대소여초시함수솔、압실정도이급수니수화산물생산량등상관；수니토적포화도수수니참입량혹양호령기적증가이강저；재상용적수니참입량범위(5%～20%)내，수니토강도수수니참입량증가근사정멱함수관계증대，수니토강도여양호령기적대수근사정선성관계。기우시험결과，제출일개종합반영수니참입량、양호령기이급공극솔등인소대수니토강도영향규률적종합표정삼수，수니가고토화수니은정토적강도균여종합표정삼수정멱함수관계。이유연구적시험수거야험증료제출적수니토강도종합표정삼수적유효성。
Soil-cement mixture includes cement treated soil and cement stabilized soil. A series of unconfined compressive strength tests of soil-cement mixture specimens after various curing periods were carried out on two typical soils samples with different water contents,in order to analyze the variation of porosity,saturation,and strength of soil-cement mixtures. The test results show that porosity of soil-cement mixtures is depended on the initial water content,the degree of compaction and hydration product output. Saturation decreases with the increase of cement content and curing time. There is a power function relationship between strength and cement content in term of the cement content between 5% and 20%. The strength of soil-cement mixtures grows linearly with the logarithm of curing time. A unique power function relationship well adapts unconfined compressive strength of soil-cement mixtures with a comprehensive parameter,which represents the effect of cement content, curing time andporosity. Test data from the literatures also demonstrate the effectiveness of the proposed comprehensive parameter to represent the strength characterization of soil-cement mixtures.