Use of Chinese Sand and Fine Powders of Industrial Waste as Fine Aggregate.

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  • 中国産砂と廃棄微粉末の細骨材への利用に関する研究
  • チュウゴクサン ズナ ト ハイキ ビフンマツ ノ サイコツザイ エ ノ リヨウ ニ カンスル ケンキュウ

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The purpose of this study is to investigate the applicability of Chinese sand and fine powders of industrial waste as fine aggregate. At first, three types of fine aggregate were prepared mixing crushed sand, river sand and two types of Chinese sand. It was investigated that the type of fine aggregate influenced the properties of concrete. Secondly, fine particles under 0.15mm were mixed with Chinese sand, because Chinese sand has a little quantity of fine particle under 0.15mm. Type of fine particle were crushed stone fine powder, ferro-nickel slag fine powder and glass fine powder. The effects of type of fine particle on the properties of concrete were examined. Test results showed that the concrete with Chinese sands was poor viscosity and much bleeding, and these properties were improved with crushed stone fine powder.

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