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本研究着重研究在低温、高温、弱碱、弱酸、冻融循环破坏状态下的,修补混凝土构件,新旧混凝土结合处粘接能力的测试,用聚合物EVA粉末对普通修补混凝土改性,在低碱速凝剂的作用下快速修补构件的抗折性能的测试,经试验证实,聚合物EVA会随着掺入量的增加,对修补混凝土新旧界面的粘接能力在复杂多变的环境中均有极大的改善作用。
This study focuses on the testing of the bonding ability of the repaired concrete members and the old and new concrete joints under the conditions of low temperature, high temperature, weak base, weak acid, freezing and thawing cycles, modification of common repair concrete with polymer EVA powder, The test of the flexural property of the quick repaired member under the action of alkali quick-setting admixture shows that the adhesion of the polymer EVA to the old and new interface of the repaired concrete increases with the increase of the blending amount in the complex and ever-changing environment A great improvement.