EFFECT OF HIGH-PERFORMANCE ARTIFICIAL LIGHTWEIGHT AGGREGATE ON SEVERAL PROPERTIES OF LIGHTWEIGHT CONCRETE

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  • 高品質人工軽量骨材が軽量コンクリートの物性改善に及ぼす効果
  • コウ ヒンシツ ジンコウ ケイリョウ コツザイ ガ ケイリョウ コンクリート

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Abstract

A high-performance artificial lightweight aggregate has been developed through application of a new manufacturing method. This aggregate is principally characterized by aggregate particles having no cracks or large voids, and most of the pores being closed and uniformly small. The aggregate water absorption is so extremely low that, even if dry aggregate is used, the concrete can be cast by pump without changing its workability. The strength of the aggregate is improved permitting a higher strength concrete to be obtained. Furthermore, high resistance to freezing and thawing action can be assured.

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