Experimental Study on Flexural Resistance of Reinforced Recycled-Concrete Beams

Abstract

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. Introductions