无机结合料稳定的建筑垃圾路基填料干缩性能研究  

Study on dry shrinkage performance of subgrade filled with construction waste stabilized by inorganic binder

作　　者：杨锐[1,2] 宁培淋[3] 刘浩 王新国[2] 

机构地区：[1]广州科技职业技术学院,广东广州510550 [2]广东工业大学,广东广州510006 [3]广东交通职业技术学院,广东广州510520 [4]深圳市勘察研究院有限公司,广东深圳518026

出　　处：《新型建筑材料》2016年第6期29-31,共3页New Building Materials

基　　金：全国建材职业教育教学指导委员会科研项目(JCZY1519);广州市建设国家级科技思想库研究项目(2013SX012);广州科技职业技术学院项目(2014ZR01)

摘　　要：为了解决无机结合料稳定的建筑垃圾路基填料因干燥收缩产生的收缩变形问题,提高道路的使用寿命,采用室内试验分析方法,分别对水泥、石灰和粉煤灰、石灰和矿粉稳定的建筑垃圾路基填料干缩性能进行研究。结果表明,掺入10%的石灰和粉煤灰及掺入10%的石灰和矿粉对路基填料干缩系数、干缩应变、失水率的影响基本相同。掺入3%的水泥对路基填料干缩系数、干缩应变的影响比掺入10%石灰和粉煤灰及10%石灰和矿粉更显著,对路基填料失水率的影响比掺入10%石灰和粉煤灰及10%石灰和矿粉要小。In order to solve the contraction deformation problem of construction waste subgrade stabilized by inorganic binder caused due to dry shrinkage, improve the service life of the road,the dry shrinkage performances of subgrade filled with construc- tion waste which stabilized by cement,lime and fly ash,lime and slag powder were researched respectively through indoor test. The results showed that：the.influence of material mixed with 10% lime and fly ash on dry shrinkage coefficient,dry shrinkage strain, rate of water loss of the subgrade filling material is similar to that mixed with 10% lime and slag powder. The influence of mate- rial mixed with 3% cement on dry shrinkage coefficient,dry shrinkage strain of the subgrade filling material is very bigger than that mixed with 10% lime andfly ash,mixed with 10% lime and slag powder, while its influence on rate of water loss of the sub- grade filling material is smaller than the latter two.

关 键 词：水泥 石灰和粉煤灰 石灰和矿粉 建筑垃圾 干缩性能 

分 类 号：TU472[建筑科学—结构工程]