Study on Performance Evaluation of Polymer-Modified Mortar under Real Environment

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  • 環境条件を考慮したポリマーセメント系断面修復材の性能評価
  • カンキョウ ジョウケン オ コウリョシタ ポリマー セメントケイ ダンメン シュウフクザイ ノ セイノウ ヒョウカ

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Abstract

PMM has been widely used because of its high durability performance though it is relatively expensive. Unfortunately, many early re-deteriorated cases have been observed just a short time after the first repair. The re-deterioration is due to the fact that important factors like deteriorated grasp, time, material of repair, environmental influence etc., are not considered carefully for the repair work. Among those factors, the environmental impact has been hardly examined up to now. Therefore, the purpose of this research was to quantitatively evaluate the environmental impact on the performance of patching repair material. In the experiment, the material and mix design of PMM were varied widely. The environmental conditions were : Seal, Dry and Windy, Low-temp and High-temp conditions. Evaluation techniques were elucidation of cement hydration and film process of polymer in PMM. This study examined the influence of above factors on strength and durability of PMM. And, the stiffening model of PMM was constructed based on quantitative experimental results.

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