[L45] 混和材料Ⅳ

[L1036] RESISTANCE AGAINST MICROCRACKING OF SLAG CONCRETE WITH HIGH ALITE CEMENT ANALYZED BY AE WITH NEW WAVE-GUIDE

Huynh Phuong NAM¹,細田 暁² (1.Yokohama National University)

キーワード：微細ひび割れ,AE法,スラグコンクリート,新しいウェーブガイド,若材齢,高エーライトセメント

Acoustic emission (AE) technique with a newly developed wave-guide and mechanical tests were applied to investigate microcracking in slag concrete in various periods during high temperature history simulating steam curing. The effectiveness of the new wave-guide which could reduce the effects of attenuation was confirmed in collecting AE signals in concrete in very young ages, especially for concrete with high w/b. This study also revealed the effect of high alite cement on improving the resistance against microcracking of slag concrete.
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