FEASIBILITY STUDY ON RECYCLING OF AGED WATERPROOFING MATERIALS(Materials and Construction)

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  • 経年劣化した防水材料のリサイクルの可能性(材料施工)
  • 経年劣化した防水材料のリサイクルの可能性
  • ケイネン レッカ シタ ボウスイ ザイリョウ ノ リサイクル ノ カノウセイ

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Abstract

This paper describes the feasibility of recycling of aged waterproofing materials, which are an EPDM sheet-applied membrane, two kinds of PVC sheet applied membranes, a fluid-applied polyurethane membrane and a silicone-modified polyether sealant bead. We were tried to make recycled waterproofing materials through some techniques. The former four membranes could be reproduced to the same quality as the materials satisfying Japanese Industrial Standards. As for the last one, we couldn't find any recycling technique except usage as adding material at mixing. Finally, we pointed out the importance of development of the techniques for separating aged membranes from concrete substrate, and also extracting resin from fiber reinforcement type sheets.

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