花岗岩残积土的水泥处治实验研究  

Cementation Treatment for Granite residual soil

作　　者：吴能森[1] 林春园[1] 林智雄[1] 

机构地区：[1]福建农林大学交通学院,福州350002

出　　处：《福建建设科技》2008年第6期13-15,共3页Fujian Construction Science & Technology

摘　　要：对花岗岩残积土试样进行水泥浆处治初步实验研究,经处治后的花岗岩残积土,其抗崩解性能显著改善,浸泡在水中数日不会崩解;同样其抗压强度也得到显著提高,当水泥掺量大于10%之后,试块强度反而随着水泥掺量的增加而降低;浸水后的试块,其强度基本是随着水泥掺量的增加而增大;未浸水试块强度基本呈随水灰比增大而降低的趋势,而水灰比及养护龄期对浸水试块的强度影响不明显。Through the treatment experiment study on the granite residual soil （GRS） with the cement considering factors such as the incorporate amount of cement, water--cement ratio, curing period, etc. , this paper concluded as follow： the cement--treated GRS has good behavior in water that can＇t be solved or collapsed when soaked in water for several days; after treated by cement, the compressive strength of GRS increases a lot, in which the compressive strength of no--soaked samples is bigger than soaked ones; when no soaked, the sample＇s strength increases firstly but then decreases as the increase of cement amount, the changing point of cement amount is 10%; when soaked, the sample＇s strength generally increases as the increase of the amount of cement; the compressive strength decreases as the increase of water--cement ratio for no--soaked samples, while water--cement ratio and curing period have little influence on the compressive strength of soaked samples.

关 键 词：花岗岩残积土 崩解 软化 水泥 处治 抗压强度 

分 类 号：TU41[建筑科学—岩土工程]