Acceleration Factor of Weathering Test Corresponding Field Exposed Time with Accelerated Weathering Test Time for Organic Repair Materials

Abstract

In the repair design of agricultural irrigation facilities, it is important to assess the durability performance of the repair material before construction. In this study, we estimate the acceleration factor of the accelerated weathering test for the organic repair material used in the construction of an agricultural canal to protect it from deterioration factors. We identify the relationship between the exposure period and the accelerated weathering test time by comparing the rate of the deterioration area in the field survey with that in the accelerated weathering test. Consequently, the surface deterioration above the water level, over eight years of exposure, corresponded to that of 1,500 h of accelerated weathering test in the side wall facing north-northwest, and 2,000 h of accelerated weathering test in the side wall facing south-southeast. It was assumed that in this study area the exposure period and the accelerated weathering test time are almost linear.