EFFECT OF EPOXY COATING THICKNESS ON BOND STRENGTH OF REINFORCING BARS
EFFECT OF EPOXY COATING THICKNESS ON BOND STRENGTH OF REINFORCING BARS
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DOI：
10.14359/12606
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发表时间：
2003-05
影响因子：
1.8
通讯作者：
Gerald G. Miller;Jennifer L. Kepler;D. Darwin
中科院分区：
文献类型：
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作者：
Gerald G. Miller;Jennifer L. Kepler;D. Darwin
本文介绍了采用涂层厚度为160 ~ 510 μ m的19号钢筋，测试环氧涂层厚度对粘结强度影响的实验方案。环氧涂层导致的粘结强度降低在很大程度上与涂层厚度无关。然而，对于厚度大于420微米的涂层，这种降低变得显著。结合先前对尺寸从10号到36号钢筋的研究，结果表明，对于ASTM标准中19号及更大的钢筋，最大允许涂层厚度从300 um增加到420 um是合理的。
This paper describes an experimental program that tested the effect of epoxy coating thickness on bond strength by using No. 19 reinforcing bars with coating thicknesses ranging from 160-510 um. The resulting reduction in bond strength caused by epoxy coatings is largely independent of coating thickness. However, the reduction becomes significant for coatings thicker than 420 um. When combined with prior research on bars ranging in size from No. 10 to No. 36, the results demonstrate that an increase in the maximum allowable coating thickness, from 300 um to 420 um, is justified for No. 19 and larger reinforcing bars in the ASTM standard.