摘要
目前在水泥系深层搅拌桩施工中 ,一般采用熟石膏 ,掺量为2 %(占水泥重) ,但试验证明 ,在水泥土中掺加生石膏后 ,水泥土的早期、中期和后期强度均可提高 ,尤其可大幅度地提高早期强度 ,生石膏的最佳掺量为3.6%～7.1%(占水泥重)。
Currently in construction of mixed cement piling,it is usually mixed with 2% calcined gypsum(of cement weight).It is proved,however,if mixed with plaster stone the early,medium and after strength of the cement soil can be improved,especially improved drastically for the early strength.The optimum percentage of the additive ranges from 3.6% to 7.1% (of cement weight).
出处
《建筑技术》
北大核心
2000年第3期162-163,171,共3页
Architecture Technology
关键词
生石膏
水泥系
深层搅拌法
最佳掺量
plaster stone
cement deep mixing method
optimum quantity to be added
