@article{Sun Rongrong, Xin Zhihua_1, title={Study on Strength Change of Recycled Concrete with Age in a Natural Jungle Covered Buildings}, url={http://forestchemicalsreview.com/index.php/JFCR/article/view/129}, DOI={10.17762/jfcr.vi.129}, abstractNote={<p>In order to lay a solid experimental and theoretical foundation for the application of recycled<br>concrete and structural engineering, it is necessary to strengthen the research on the<br>performance of recycled concrete. Forest evaporation and turbulent exchange intensity affect the<br>characteristics of soil and stone. The accelerated demolition and construction speed of various<br>projects leads to the accumulation of waste concrete. In this paper, the mix design and basic<br>mechanical properties of recycled concrete are studied. Based on the mix proportion design<br>method of ordinary concrete, this paper applies the calculation formula of additional water<br>consumption and replacement regression coefficient αa, αB, the mix proportion of recycled<br>concrete is designed. Based on the mix proportion of recycled concrete, the mix proportion<br>design of water reducer recycled concrete, fly ash recycled concrete, silica fume recycled<br>concrete and composite recycled concrete is discussed by adding admixtures and admixtures,<br>which provides a theoretical basis for the high performance of recycled concrete. Based on the<br>compressive strength test of 288 standard cubes, this paper discusses the failure mode and<br>process of recycled concrete. The compressive properties of high performance recycled concrete<br>and ordinary concrete are compared, and the influence of admixtures and admixtures on the<br>compressive strength of recycled concrete is discussed. In this paper, the splitting tensile<br>strength test, flexural strength test and elastic modulus test of recycled concrete are also carried<br>out. It is found that the above three properties of recycled concrete are decreased..</p&gt;}, journal={Forest Chemicals Review}, author={Sun Rongrong, Xin Zhihua}, year={1}, month={1}, pages={299-306} }