低品質シリカフュームを使用した硬練りコンクリートの配合と基礎的性質(<特集>建設材料特集)

概要

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The silica fume having low silica content is a by-product from the dust-collector at a ferrosilicon plant in Kochi-city. The use of silica fume in the concrete with stiff consistency, being used for concrete products, was invesigated in order to obtain the fundamental data relating the mixture proportions to the properties of concrete, such as slump, strength, drying shrinkage, waterpermeability, etc.. Silica fume should be used with a high-range water-reducing agent, as the slump of concrete goes down with the increment of silica fume. The optimum contentof silica fume addition is 10 percent substitution for cement in consideration of the workability, the strength and the economy of concrete. By the use of silica fume, the following effects can be obtained: reduced bleeding, increased strength and better water-tightness, although the drying shrinkage of concrete increases a little.
社団法人日本材料学会の論文
1987-07-15