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Experimental Study on Flexural Behavior of Modified Recycled Concrete Beams

机译：改性再生混凝土梁弯曲行为的实验研究

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摘要

With silicon powder content and the hybrid fiber content as parameters, will be 1 as ordinary concrete beams and the control group, three different content of silicon powder and 2 root hybrid fiber volume content of beam as the experimental group, the modification of the flexural performance of recycled concrete beams is analyzed, the results show that modified regeneration of recycled concrete and ordinary concrete beams and damage has obvious four stages of the process, and its basic mechanical process also accord with flat section assumption; And with silicon powder and the mixed hybrid fiber recycled concrete beams is made of modified flexural performance enhancements, cracking resistance and ultimate bearing capacity is better than that of recycled concrete beams is ordinary; And the ultimate bearing capacity of normal section of the calculated in accordance with the specification was consistent with the test results, the modified recycled concrete can be carried out in accordance with the specification design, provides a reference for engineering practice.
机译：用硅粉含量和杂交纤维含量作为参数，将为普通混凝土梁和对照组，三种不同含量的硅粉和2根杂交纤维体积含量的梁作为实验组，改变弯曲性能分析了再生混凝土梁，结果表明，再生混凝土和普通混凝土梁和损坏的改良再生具有明显的过程的四个阶段，其基本机械过程也符合平坦的假设;用硅粉和混合杂交纤维再生混凝土梁采用改性弯曲性能增强，抗裂性和最终承载能力优于再生混凝土梁普通;根据规范计算的正常部分的最终承载力与测试结果一致，改性的再循环混凝土可以按照规范设计进行，为工程实践提供参考。

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