桩基泥浆泡沫混凝土的制备与力学性能研究  

Study on Preparation and Mechanical Properties of Pile Mud Foam Concrete

作　　者：张玉苹 唐凯靖 

机构地区：[1]西南科技大学城市学院,四川绵阳621000 [2]绵阳职业技术学院,四川绵阳621000

出　　处：《混凝土世界》2022年第7期32-35,共4页China Concrete

基　　金：西南科技大学城市学院校内重点项目《工程软土固化剂的研究及其应用技术》(编号2020XJXM08)。

摘　　要：研究了桩基泥浆掺量及其在粉煤灰优化条件下对泡沫混凝土性能的影响,分析了桩基泥浆对泡沫混凝土容重、抗压强度和孔结构的作用规律。结果表明:当桩基泥浆掺量为50%时,泡沫混凝土容重降低至635kg/m^(3),28d抗压强度达到4.4MPa;进一步掺入粉煤灰,使桩基泥浆泡沫混凝土的容重降低至570kg/m^(3),28d抗压强度提高至5.2MPa;粉煤灰对桩基泥浆泡沫混凝土的孔结构具有一定的改善效果。The effect of the content of pile mud on the performance of foamed concrete under the condition of fly ash optimization is studied.The effect of pile mud on bulk density,compressive strength and pore structure of foam concrete is analyzed.The results show that when the content of pile mud is 50%,the bulk density of foam concrete is reduced to 635kg/m^(3),and the compressive strength reaches 4.4MPa at 28d.With further addition of fly ash,the bulk density of the pile mud foam concrete reduced to 570kg/m^(3),and the compressive strength increased to 5.2 MPa at 28d.Fly ash can improve the pore structure of pile mud foam concrete.

关 键 词：桩基泥浆 泡沫混凝土 抗压强度 孔结构 

分 类 号：TU528.2[建筑科学—建筑技术科学]