玄武岩纤维泡沫混凝土的制备及性能分析  

Preparation and Performance Analysis of Basalt Fiber Foam Concrete

作　　者：李天窄[1] 李益南[2] LI Tian-zhai;LI Yi-nan(Architectural Engineering Institute,Xinyang Vocational and Technical College,Xinyang 464000,China;College of Landscape Architecture and Art,Xinyang Agriculture and Forestry University,Xinyang 464000,China)

机构地区：[1]信阳职业技术学院建筑工程学院,河南信阳464000 [2]信阳农林学院风景园林艺术学院,河南信阳464000

出　　处：《塑料科技》2024年第10期104-107,共4页Plastics Science and Technology

摘　　要：采用普通硅酸盐水泥为基体材料,玄武岩纤维为掺杂相,制备不同纤维掺量的泡沫混凝土,分析玄武岩纤维的用量对泡沫混凝土的力学性能、导热性能、干密度、吸水率及耐久性能的影响。结果表明:加入适量的玄武岩纤维可以改善泡沫混凝土的抗拉强度及抗折强度,随着纤维掺量的增加,干密度逐渐降低,导热性能则先降低后增加,吸水率呈现出先降低后增大的趋势,氯离子迁移系数先降低后增大。在养护28 d时,加入1.2%的玄武岩纤维,泡沫混凝土抗拉强度及抗折强度达到最大值,分别为4.79 MPa和1.86 MPa,同时具备较佳的导热性、吸水率及耐久性。The foam concrete with different fiber content was prepared by using ordinary Portland cement as the matrix material and basalt fiber as the doping phase.The effects of basalt fiber content on the mechanical properties,thermal conductivity,dry density,water absorption and durability of foam concrete were analyzed.The results show that the tensile strength and flexural strength of foam concrete can be improved by adding appropriate basalt fiber.With the increase of fiber content,the dry density gradually decreases,the thermal conductivity first decreases and then increases,the water absorption first decreases and then increases,and the migration coefficient of chloride ions first decreases and then increases.When cured for 28 days,added with 1.2%basalt fiber,the tensile strength and flexural strength of foam concrete reach the maximum,which are 4.79 MPa and 1.86 MPa,respectively,and have better thermal conductivity,water absorption and durability.

关 键 词：玄武岩纤维 泡沫混凝土 力学性能 导热性 耐久性 

分 类 号：TU528.2[建筑科学—建筑技术科学]