高炉水砕スラグのコンクリート用細骨材への適用性に関する研究

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タイトル別名
  • A STUDY ON THE APPLICABILLITY OF GRANULATED SLAG AS FINE AGGREGATE IN CONCRETE
  • コウロ スイサイ スラグ ノ コンクリートヨウ サイコツザイ エ ノ テキヨウ

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抄録

In the present paper, properties and possible use of granulated slag and processed granulated slag as fine aggregate in concrete are discussed experimentally. The results obtained are listed below. 1. Granulated slag is not suitable for fine aggregate in concrete, because it is inferior in its grain-shape and grading. 2. There is a prospect of the applicability of processed granulated slag as fine aggregate in concrete. 3. Compressive strength of the mortar and concrete depends on the finessmodulus of processed granulated slag and the lower the finess modulus, the higher the strength. This tendency was outstanding in long-term tests. If the fineness modulus of aggregate was less than 2.4, a higher degree of strength was obtained than the one of the concrete made use of river sand. 4. In the mortar and concrete made use of processed granulated slag, unit water content requirement was more than in that made use of river sand. But, in the strength and shrinkingtest, the properties of concrete made use of processed granulated slag were similar to those made use of river sand.

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