本刊讯近日,天津市城乡建设委员会发布《天津市矿物棉喷涂保温应用技术规程》(DB/T29-234-2015),自2015年12月1日起实施。该规程对矿物棉喷涂绝热层及其组成材料的性能指标提出了明确要求。一是对矿物棉喷涂绝热层基本构造提出了要求。矿物棉喷涂绝热层由底涂层、保温层、面涂层构成,其基本构造应符合相关规定,其中防护层、饰面层根据设计需要确定。二是对矿物棉的性能指标提出了要求。在保证其满足GB/T 26746-2011《矿物棉喷涂绝热层》要求的基础上,增加了表观密度(干)、热荷重收缩温度、酸 Recently, Tianjin Urban and Rural Construction Commission released the “Tianjin mineral wool spray insulation technical regulations” (DB / T29-234-2015), since December 1, 2015 come into operation. The rules of mineral wool spraying thermal insulation layer and its components of the performance indicators made clear requirements. First, mineral wool spray insulation layer made the basic requirements. Mineral wool spray insulation layer by the primer, insulation, surface coating composition, the basic structure should be consistent with the relevant provisions, including protective layer, decorative layer according to design needs to be determined. Second, the performance indicators of mineral wool put forward requirements. In ensuring that it meets the GB / T 26746-2011 “mineral wool spray insulation layer” requirements, based on the increase in apparent density (dry), heat shrinkage shrinkage temperature, acid