Influence of Natural Forest Covered Quarry Stone Powder on the Performance of Recycled Concrete with Manufactured Sand Based on Matrix Analysis Method

  • Weng Mei, Wang Xiaoxia

Abstract

The local climate of the jungle covered area is special. Compared with the climate of bare areas
outside the forest, it has obvious marine climate characteristics, such as small daily and annual
temperature range, high humidity, more precipitation and small wind speed. Therefore, the
collected quarry stone powder also has different characteristics. In order to study the influence
of stone powder content in manufactured sand and replacement rate of recycled coarse
aggregate on tensile and compressive properties of concrete. The recycled concrete blocks with
different stone powder content (0,5%, 10%, 15%) and different replacement ratio of recycled
coarse aggregate (0,33.3%, 66.6%, 100%) were made. A total of 96 standard cubes were used
for compressive and splitting tensile strength tests, and 48 standard prism blocks were used for
compressive strength tests. In this paper, the influence of single factor and double factor
coupling on the tension and pressure is analyzed. The test results show that a certain amount of
stone powder in manufactured sand can promote the improvement of cube compressive
strength, prism compressive strength and splitting tensile strength. With the increase of
replacement rate of recycled coarse aggregate, the compressive strength and splitting tensile
strength first decrease and then increase. In this paper, the relationship between cube
compressive strength and splitting tensile strength as well as the relationship between cube
compressive strength and prism compressive strength are obtained by fitting analysis.

How to Cite
Weng Mei, Wang Xiaoxia. (1). Influence of Natural Forest Covered Quarry Stone Powder on the Performance of Recycled Concrete with Manufactured Sand Based on Matrix Analysis Method. Forest Chemicals Review, 210-217. Retrieved from http://forestchemicalsreview.com/index.php/JFCR/article/view/118
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