论文部分内容阅读
研究了聚酯纤维(用量0～1.904kg/m3)、丁苯乳液(用量70～100kg/m3)在单掺、复掺情况下对水泥混凝土力学强度、弯曲韧性及抗冲击性能的影响。结果表明,单掺聚酯纤维或丁苯乳液均能改善其折压比、弯曲韧性及抗冲击性能,且随着掺量的增加呈现上升趋势;纤维-聚合物复掺时,其性能会得到进一步改善,且改性效果明显好于两者的单掺效果;纤维-聚合物复合改性混凝土的经济性明显好于聚合物改性混凝土;此外,探讨了纤维和聚合物对混凝土的复合改性机理。
The effects of polyester fiber (0 ~ 1.904kg / m3) and styrene - butadiene latex (70 ~ 100kg / m3) on the mechanical strength, flexural toughness and impact resistance of cement concrete were investigated. The results show that the single-doped polyester fiber or styrene-butadiene latex can improve the pressure-deflection ratio, flexural toughness and impact resistance, and with the increase of the content, the increasing tendency appears. When the fiber- Further improved, and the modification effect is obviously better than the single admixture effect of the two; fiber - polymer composite modified concrete economy significantly better than the polymer modified concrete; In addition, the fiber and polymer composite Sexual mechanism.