— Similarly the formulation of high performance concrete from machine made sand is one of the concrete material sustainability studies [26 27] Due to the wide distribution of limestone machine made sand a large number of studies focus on machine made limestone sand [28 31] and less research on machine made sand of other
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— Experimental study was carried out on the concrete mixed with machine made sand and recycled coarse aggregate MSRAC three strength grades of concrete were designed by changing the water to
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— In order to investigate the influence of carbonation treatment on the rebound strength measurement curve of machine made sand concrete this study conducted research on the carbonation mechanism sand concrete rebound strength measurement curve through rebound and compressive strength tests using carbonation degree and
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— Based on appropriate assessment methods and indexes of self compacting concrete proposed properties of concrete made with river sand and machine made sand was firstly compared in different mix proportions The techniques such as basic parameters optimization of mix proportion admixture composition large volume mineral
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— Stone river sand machine made sand cement fly ash mineral powder and CaO expansion agent were mixed in a mixer for 3 min and then the admixture was evenly mixed with water
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— Traditional natural river sand is used as a fine aggregate for concrete but due to the severe environmental situation in recent years many places have asked for a ban or restriction on the extraction of river sand This has resulted in an increasing demand for concrete using machine made sand instead of natural sand The estimation and
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These products are designed to provide a thin durable and attractive layer on top of existing concrete hiding imperfections and creating a smooth even appearance Micro toppings are typically made from a blend of polymer modified cement fine sand and other additives that provide flexibility strength and adhesion to the underlying concrete
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— Comparison of artificial sand and natural sand Compared with natural sand artificial sand has more advantages 1 Quality advantages The source of sand resources is stable; mechanized production mode ensures an adjustable and controllable quality ; 2 Grade advantages artificial sand has high surface energy and hydrophilicity; it
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Low grade and Machine made Sands Shujing Zhao Rirong Fu Peng Fu et al Study on effect of mechanical sand on mechanical properties and fractal Material name Cement Sand Gravel Water PC Fly ash Mineral powder 1 m3 dosage kg 285 733 1070 170 7 22 57 38 Experimental results and analysis
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— Zhao Xu Li Study on workability of plastic fresh concrete with machine made sand in Proceedings of the 2011 IEEE International Conference on Transportation and Mechanical & Electrical Engineering December 16 8 2011 TMEE2011 pp 2013 2016 Google Scholar
— of machine made sand concrete to a certain extent At present there are more studies at home and abroad on the influence of stone powder content on concrete properties [12 14]
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— Zhao Xu Li Study on workability of plastic fresh concrete with machine made sand in Proceedings of the 2011 IEEE International Conference on Transportation and Mechanical & Electrical Engineering December 16 8 2011 TMEE2011 pp 2013 2016 Google Scholar
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— Scholars have achieved certain results in the research of raw material control concrete mechanical properties shrinkage and creep properties and mix proportion design of machine made sand concrete Machine made sand has the characteristics of rough surface clear edges and corners high content of stone powder and large at both
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