摘要
我国西北村镇地区现存有大量黄土建筑,由于黄土力学性能较低,导致该类房屋在地震中极易造成严重破坏.为了提高黄土材料的力学性能和所建房屋的抗震性能,本文通过掺入土壤固化剂、水泥以及采用压实的综合方法对黄土力学性能进行改善,对改善后的黄土进行抗拉强度和抗压强度的试验.结果表明：当土壤固化剂掺量为0.018％、水泥掺量为5％以及压实强度为3MPa时,黄土试块的抗压强度可达到3.87MPa,抗折强度达到1.03MPa,能够达到抗压强度和抗拉强度的目标值,且能满足1～2层农宅建设的需要.
There exists a large numbers of raw soil buildings in the northwest region of China. Its mechanical properties and seismic performance are poor. In order to improve the mechanics performance of loess material, loess is mixed with soil curing agent and cement,and the method of compaction is adopted. The tests include compressive strength and flexural strength. The results show that with the increase of dosage of cement and compacting force, the compressive strength of block is increasing, cement could improve the strength, the improvement of curing agent on the strength is not obvious. Curing agent content of 0. 018%, cement content of 5% and 3MPa for compaction strength, the compressive strength of the loess block can be up to 3.87MPa, the flexural strength is 1.03MPa,it can meet the need of the construction of the farmhouse for 1 -2 layers.
出处
《工程抗震与加固改造》
北大核心
2015年第5期113-118,共6页
Earthquake Resistant Engineering and Retrofitting
基金
中国地震局黄土地震工程重点实验室开放基金(KLLEE-14-001)
关键词
黄土材料
压实
水泥
离子固化剂
loess material
compaction
cement
soil curing agent
