关中农村地区生土墙体材料改性的试验研究  

Modification Experimental Research on Raw Soil Materials of Guanzhong Rural Areas

作　　者：胡恬[1] 李博渊 张琨 HU Tian;LI Bo-yuan;ZHANG Kun(School of Architecture and Civil Engineering, Xi＇an University of Science and TechnologyI ,Xi＇an 710054, China;Experimental Teaching Center of Geotechnical Engineering of Shaanxi Province2 ,Xi＇an 710600, China)

机构地区：[1]西安科技大学建筑与土木工程学院,西安710054 [2]陕西省岩土工程试验教学中心,西安710600

出　　处：《科学技术与工程》2018年第13期290-293,共4页Science Technology and Engineering

基　　金：国家自然科学基金(51578436);西安科技大学培育基金(201640)资助

摘　　要：以关中地区的原状黄土作为基材,分别掺加不同比例的粉煤灰、水泥、石灰、小麦秸秆以及黏结剂、防水剂等,形成了不同的改性生土材料。同时,通过试验分别研究了不同配比对改性生土材料的力学性能及耐水性影响。研究结果表明最优配比下材料28 d抗压强度可达19.4 MPa,抗弯强度达到3.1 MPa,抗压、弯效果较好。可知粉煤灰、水泥、石灰、小麦秸秆等能够用于生土材料的改性,为关中地区生土材料改性研究提供理论支持及数据参考。The loess in Guanzhong area,as the raw-soil material,were mixed with different proportions of admixtures,such as flyash,wheal straw,cement,lime,binder and waterproof additive,etc. Then the modified rawsoil materials with different admixtures and different amount were formed. Effect of the different ratio on mechanism properties of raw soil modification were investigated. The testing results indicated that the flyash,wheal straw,cement and lime are suitable for raw soil modification. The 28 d compressive strength of the raw soil modification can reach 19. 4 MPa,the flexural strength reached 3. 1 MPa. The effect of compression and bending is better,which provides the reference for the raw soil materials modification in Guanzhong area.

关 键 词：改性 生土 粉煤灰 抗压强度 

分 类 号：TU501[建筑科学—建筑技术科学]