STUDIES ON COMPACTNESS AND UNIFORMITY OF PREPACKED CONCRETE USING FINELY-DIVIDED COPPER SLAG AS ADMIXTURE

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  • 銅スラグ微粉末を用いたプレパックドコンクリート用グラウトの充填性および均等性に関する研究
  • ドウ スラグ ビフンマツ オ モチイタ プレパックド コンクリートヨウ グラウ

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Abstract

Finely-divided copper slag made by granulating slag produced in refining of copper will improve the filling properties and uniformity of grout and is thought to be usable as a grout admixture, but there is substantial reduction in the strength of grout. The study reported here was for the purpose of developing a grout for prepacked concrete having filling properties and uniformity that are good as well as ample strength through the combined use of a grout material containing a high-range water-reducing admixture with finely-divided copper slag. Uniformity was ascertained by mix proportion analyses of various parts of 180×60×15-cm prepacked concrete specimens and core strengths, while analyses of liquid level gradient of the grout were also performed to show the advantages of copper slag grout.

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