TY - JOUR AU - Sun Rongrong, Xin Zhihua, PY - 1970/01/01 Y2 - 2024/03/29 TI - Study on Strength Change of Recycled Concrete with Age in a Natural Jungle Covered Buildings JF - Forest Chemicals Review JA - JFCR VL - IS - SE - Articles DO - 10.17762/jfcr.vi.129 UR - http://forestchemicalsreview.com/index.php/JFCR/article/view/129 SP - 299-306 AB - In order to lay a solid experimental and theoretical foundation for the application of recycledconcrete and structural engineering, it is necessary to strengthen the research on theperformance of recycled concrete. Forest evaporation and turbulent exchange intensity affect thecharacteristics of soil and stone. The accelerated demolition and construction speed of variousprojects leads to the accumulation of waste concrete. In this paper, the mix design and basicmechanical properties of recycled concrete are studied. Based on the mix proportion designmethod of ordinary concrete, this paper applies the calculation formula of additional waterconsumption and replacement regression coefficient αa, αB, the mix proportion of recycledconcrete is designed. Based on the mix proportion of recycled concrete, the mix proportiondesign of water reducer recycled concrete, fly ash recycled concrete, silica fume recycledconcrete and composite recycled concrete is discussed by adding admixtures and admixtures,which provides a theoretical basis for the high performance of recycled concrete. Based on thecompressive strength test of 288 standard cubes, this paper discusses the failure mode andprocess of recycled concrete. The compressive properties of high performance recycled concreteand ordinary concrete are compared, and the influence of admixtures and admixtures on thecompressive strength of recycled concrete is discussed. In this paper, the splitting tensilestrength test, flexural strength test and elastic modulus test of recycled concrete are also carriedout. It is found that the above three properties of recycled concrete are decreased.. ER -