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我在参加本地区的质量检查中发现,有的单位全年砌筑砂浆强度合格率仅达60%左右,变异系数达0.4以上,影响了砌体工程质量。一、原因分析1.原材料计量不采用重量比现行《砌体工程施工及验收规范》(GB50203-98)第3.2.1条规定:“砂浆的配合比应采用重量比”。但目前部分单位仍使用体积比计量方法,且量具很不准确,甚至还有按经验进行配料的
When I participated in the quality inspection of the region, I found that some units had only 60% of the mortar mortar pass rate throughout the year, and the coefficient of variation was more than 0.4, which affected the quality of masonry projects. First, the reasons 1. Raw material measurement does not use the weight ratio of the existing “Masonry Construction and Acceptance Specifications” (GB50203-98) Article 3.2.1 stipulates: “Mortar mortar ratio should be used weight ratio.” However, at present, some units still use the volumetric method of measurement, and the measuring tools are very inaccurate. There are even batches of ingredients according to experience.