CAJ | 학술논문

以内蒙古河套地区粉质粘土为研究对象，在水泥掺量一定的情况下，将熟石灰作为水泥土的外掺剂，通过室内无侧限抗压强度试验，探讨熟石灰掺量、龄期对水泥土早期无侧限抗压强度的影响规律。试验研究表明：在熟石灰的参与下，水泥土中存在火山灰作用和离子交换作用，但是作用效果较小，从而证明水化作用是水泥土强度的最主要来源。结合试验粘土特性和水泥土强度增长规律提出粘土中粘土矿物数量不足限制了火山灰作用和离子交换作用，超量熟石灰对水泥土强度基本没有影响。
이내몽고하투지구분질점토위연구대상，재수니참량일정적정황하，장숙석회작위수니토적외참제，통과실내무측한항압강도시험，탐토숙석회참량、령기대수니토조기무측한항압강도적영향규률。시험연구표명：재숙석회적삼여하，수니토중존재화산회작용화리자교환작용，단시작용효과교소，종이증명수화작용시수니토강도적최주요래원。결합시험점토특성화수니토강도증장규률제출점토중점토광물수량불족한제료화산회작용화리자교환작용，초량숙석회대수니토강도기본몰유영향。
Silty clay of irrigation district was selected for study in Hetao,Inner Mongolia. Slaked lime was used as admixture of cement and soil in the case of certain cement content,and the influence factors of dosage and the age of cement soil was analyzed according to the unconfined compressive strength experiment.The results showed that the cement soil had pozzolanic effect and ion-exchange action under the participation of slaked lime,but the degree of effects was low. So hydration was the most important source of strength. Combined with characteristic of clay and strength growth regulation,the pozzolanic effect and ion-exchange action was limited with insufficient clay minerals and impact of excess calcium hydroxide to cemented-soil strength was very small.