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Title |
Pot Life of Structural Adhesives for FRP Composite Used in Strengthening RC Members
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Keywords |
Adhesive ; Epoxy resin ; FRP composite ; Pot life ; Saturating ; 접착제 ; 에폭시 수지 ; FRP 복합체 ; 사용가능시간 ; 함침제 |
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Abstract |
Pot life of two-component adhesives such as epoxy resin used in saturating FRP composite is defined as a certain time periods which can guarantee the bond performance and workability of epoxy resin. Therefore. adhesion procedure in strengthening RC members should be completed before chemical hardening is going on at job site. It has been known that there are two types of test method to evaluate the pot life of structural adhesive based on apparent viscosity or temperature change. This study is to verify the test methods how to assess pot life of structural adhesive for FRP composites by means of changing in apparent viscosity and means of exothermic reaction temperature proposed in existing test standards. Results of each test method were compared and analyzed, and reasonable test and evaluation method were suggested.
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