摘要
Abstract
Saline soil is widely distributed in the eastern coastal areas in China, and dissolving depression, expension salt and corrosive and other diseases which often appear in engineering construction, caused the harm greatly on construction engineering.Laboratory experiment of artificial preparation of chlorine saline soil was carried with resistance to salt expansion curing agent which independently developed by Chengdu University of Technology.The effects of the curing agent chlorine saline soil engineering properties is analyzed, and the curing agent for curing mechanism of chlorine saline soil is researched.The experiment shows, resistance to salt expansion curing agent can effectively improve the strength of chlorine saline soil, and lower dilatability of saline soil.Curing agent content is 2.5%, 5% of the sample of 28 d compressive strength than the pure cement specimens respectively increased by 56.72%, 95.52%, the flexural strength were increased by 48.11%, 52.53%;Add the amount of curing agent sample linear expansion is about 0.2 times of pure cement sample.The curing agent effectively improves the engineering quality and prolong its service life, greatly improving the economic benefits of the project.Salt expansion curing agents by inhibiting the reaction of sait ions in saline soil and calcium aluminate,namely suppression the generation of Friedel and ettringite to achieve purposes of curing chlorine soil.关键词
氯盐盐渍土/抗盐胀固化剂/工程特性/固化机理Key words
chlorine saline soil salt/salt expansion curing agent/engineering properties/curing mechanism分类
建筑与水利
