摘要
水泥黄土可用来有效地防治黄土湿陷灾害,水泥黄土强度是其质量指标的集中反映.本文通过实验和理论分析,对水泥黄土强度的影响因素和动态变化进行了研究,并提出了优选外加剂和加水量的原则.
Loess-cement is mixed by loess with suitable quantity of cement and water, possessing higher cohesive force, wipping out the collapsibility of loess, so that it is one of the effective method for controlling loess collapse hazard. Moreover its higher strength making it a cheaper constructural material being drawn on local resources in loess area.The strength of loess-cement is the concentrating reflection of its quantitative criterion, and is under influence of many factors. In order to heighten its strength and improve its property as much as possible under condition of economic rationality, the authors have carried out a series of coneret expcrimentary researches. Factors such as granulometric composition ofloess, content of cement, degree of compaclibility (in term of dry unit weight ), water content etc. have been made clear and optimize their combination. The relationship of strength and dynamic changes such as age and curing of testing samples has also been tested. In this paper, the type and content of additives and their influences on strength have been studied too. A principle has been proposed, that is the content of water should be determined according to liquid limit of plastic loess-cement.
出处
《中国地质灾害与防治学报》
CSCD
1991年第1期53-65,共13页
The Chinese Journal of Geological Hazard and Control
关键词
干硬性水泥黄土
塑性水泥黄土
水泥黄土强度
强度动态
外加剂
水泥黄土养护条件
dry-hard loess-cement, plastic loess-cement, strength of loess-cement, dynamic changes of strength, additive, condition of loess-cement curing
