《混凝土外加剂标准》(GB8076-2008)实施以来,市场在贯彻执行中企业遇到的一些新问题,归纳起来有以下三个方面:(1)旧标准GB8076没有涵盖泵送剂,所以上海地区执行的泵送剂产品的标准一直采用行标《混凝土泵送剂》(JC473— Since the implementation of the “Standard for Concrete Additives” (GB8076-2008), some new problems encountered by enterprises in implementing the market have been summed up in the following three aspects: (1) The old standard GB8076 does not cover the pumping agent, so the Shanghai area The standard for pumping products to be implemented has always been to use the standard “Concrete Pumping Agent” (JC473-