建材行业标准JC/T881《混凝土接缝斥建筑密封胶》修订简介%Brief Introduction of Building Material Standard JC/T 881 "Building Sealants for Concretejoints"
河南建筑材料研究设计院有限责任公司,河南郑州 河南省科学院质量检验与分析测试研究中心,河南郑州
2016-12-04
密封胶 混凝土接缝 标准 修订
介绍了JC/T881《混凝土接缝用建筑密封胶》建材行业标准修订概况、主要修订内容及与现行国内外标准规范的对比情况.新标准修改了标准名称,删除了塑性密封胶品种的分类及相关技术要求,增加了50、35级别高位移能力密封胶产品和浸油后定伸粘结性试验项目,调整了挤出性等项目的技术指标. %The article introduces the general amendment situation, main amended contents of standard JC/T 881 "Building sealants for concrete joints" and it also makes comparisons with other standards currently being used in China and abroad. The new standard modifies the name of the standard, deletes the classification of plastic sealant and relevant technical requirements, adds testing items for 50, 35 grade sealant of high displacement capability and cohesiveness at specific elongation after impregnated, and adjusts the technical index for extrusion and other items.
