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水性环氧树脂改性水泥力学性能

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在水性环氧树脂改性水泥材料的实验中,选用不同的固化剂,环氧树脂掺量以及养护制度来研究改性后水泥的力学性能变化;同时也对改性后的水泥断裂面进行观察研究.实验结果表明:a.水溶性好的固化剂对改性水泥的力学性能的改善效果更为显著;b.随着环氧树脂掺量的增加,改性水泥脆性降低,柔性增加,变形能力增大;c.随着龄期的增加,改性水泥的抗折强度及抗压强度都有不同程度的提高;d环氧树脂改性水泥改变了水泥的孔结构,减少了硬化水泥中的微裂纹.
Mechanical properties of waterborne epoxy resin modified concrete material
In the experiment of waterborne epoxy resin modified concrete material, the change of modified concrete mechanical properties by different curing agents,waterborne epoxy resin proportions and curing conditions was studied and the fractured surface of the concrete modification was observed. Experimental results indicate, (1) curing agent with good water-solubility had better effect on mechanical properties of modified concrete, (2) with increase of waterborne epoxy resin proportion, modified concrete has lower brittleness,higher flexibility and better formability,(3)with the increase of age,compressive strength and flexural strength raise in various degrees, (4) the modification changes pore structure and decreases tiny cracks in the modified concrete.

waterborne epoxy resincuring agentmodificationmechanical properties

李铭、汪艳、胡吉良、张闵龙

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武汉工程大学材料科学与工程学院,湖北 武汉 430074

水性环氧树脂 固化剂 改性 力学性能

2011

武汉工程大学学报
武汉工程大学

武汉工程大学学报

影响因子:0.463
ISSN:1674-2869
年,卷(期):2011.33(11)
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