论文部分内容阅读
鉴于再生粗骨料来源的多样性,RAC(再生混凝土)的立方体抗压强度(frc)也会有所不同。为探讨不同粗骨料来源RAC的立方体抗压强度frc之间的差异性,选取了具有典型代表性的旧房拆迁、高强桩基、市政工程、科学研究等四种不同来源的废混凝土,经破碎加工成四种再生粗骨料,分别选取了25%、50%、75%和100%四种取代率,配置成四种RAC,测其frc抗压强度。结果表明,再生粗骨料取代率对RAC frc抗压强度影响较大,而不同粗骨料来源对RAC的frc影响并不明显。
Due to the diversity of sources of recycled coarse aggregate, the cube compressive strength (frc) of RAC (Recycled Concrete) also varies. In order to explore the difference between the cubes’ compressive strength frc of different coarse aggregate RACs, four types of waste concrete with typical representative old house demolition, high-strength pile foundation, municipal engineering, scientific research and so on were selected. Crushed into four kinds of recycled coarse aggregate, respectively, selected 25%, 50%, 75% and 100% of the four substitution rates, configured into four RAC, measured frc compressive strength. The results show that the replacement rate of recycled coarse aggregate has a great influence on the compressive strength of RAC frc, while the effect of different coarse aggregate sources on the frc of RAC is not obvious.