（北京兆福基新材料科技发展有限公司， 北京  100081）

［摘要］依据缓粘结预应力钢绞线的产品构造及技术机理，并结合当前市场现状以及住建部相关标准，重点阐述缓粘结预应力钢绞线用缓凝粘合剂材料的重要性能指标——拉伸剪切强度的快速检验方法。通过不同温度、不同环氧树脂含量、不同加热时间、不同测试时间试验，提出一种检测时间短、检测手段方便的方法，以期为工程应用提供合理、快速、有效的技术支持。

［关键词］缓粘结预应力钢绞线； 缓凝粘合剂； 拉伸剪切强度； 快速检验方法

中图分类号：TQ43文献标识码：A文章编号：1002-848X(2019)13-0142-03

Study on rapid testing method of tensile lap-shear strength of adhesive for retard-bonded prestressing steel strand

Yuan Yongjun, Fan Yunyun

(Beijing Zhaofuji New Materials Technology Development Co.， Ltd.， Beijing 100081, China)

Abstract:Based on the product structure and technical mechanism, current market situation and relevant standards of the Ministry of Housing and Construction of retard-bonded prestressing steel strand, the rapid testing method of tensile lap-shear strength, which is an important performance index of retarding binder materials for retard-bonded prestressing steel strand was focused on. Through different temperatures, different epoxy resin content, different heating time, different test time tests, a method with short detection time and convenient detection means was proposed to provide reasonable, fast and effective technical support for engineering applications.

Keywords:retard-bonded prestressing steel strand; retard-bonded adhesive; tensile lap-shear strength; rapid testing method