@article{Weng Mei, Wang Xiaoxia_1, title={Influence of Natural Forest Covered Quarry Stone Powder on the Performance of Recycled Concrete with Manufactured Sand Based on Matrix Analysis Method}, url={http://forestchemicalsreview.com/index.php/JFCR/article/view/118}, DOI={10.17762/jfcr.vi.118}, abstractNote={<p>The local climate of the jungle covered area is special. Compared with the climate of bare areas<br>outside the forest, it has obvious marine climate characteristics, such as small daily and annual<br>temperature range, high humidity, more precipitation and small wind speed. Therefore, the<br>collected quarry stone powder also has different characteristics. In order to study the influence<br>of stone powder content in manufactured sand and replacement rate of recycled coarse<br>aggregate on tensile and compressive properties of concrete. The recycled concrete blocks with<br>different stone powder content (0,5%, 10%, 15%) and different replacement ratio of recycled<br>coarse aggregate (0,33.3%, 66.6%, 100%) were made. A total of 96 standard cubes were used<br>for compressive and splitting tensile strength tests, and 48 standard prism blocks were used for<br>compressive strength tests. In this paper, the influence of single factor and double factor<br>coupling on the tension and pressure is analyzed. The test results show that a certain amount of<br>stone powder in manufactured sand can promote the improvement of cube compressive<br>strength, prism compressive strength and splitting tensile strength. With the increase of<br>replacement rate of recycled coarse aggregate, the compressive strength and splitting tensile<br>strength first decrease and then increase. In this paper, the relationship between cube<br>compressive strength and splitting tensile strength as well as the relationship between cube<br>compressive strength and prism compressive strength are obtained by fitting analysis.</p&gt;}, journal={Forest Chemicals Review}, author={Weng Mei, Wang Xiaoxia}, year={1}, month={1}, pages={210-217} }