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铁道部基建总局主持,于8月4～8日,在太原召开了《铁路混凝土施工技术规范》(简称混凝土施规)和《铁路混凝土及材料试验方法》(简称试验方法)审查会。参加会议的有路内设计、施工、运营、科研、教学等31个单位的48名代表。会议对混凝土施规和试验方法按章全面审查,并对20MuSi钢筋代替16Mn钢筋、石料试件标准尺寸、新灌筑混凝土的侧压力计算公式、大体积混凝土中掺片石的限值、混凝土试件标准尺寸、钢筋混凝土中掺氯盐、水下混凝土配制强度的提高、预应力混凝土与其产品标准的关系,关于防水混凝土,螺纹钢筋直角形弯钩内经限值,混凝土最大水灰比和最小水泥用量等12个问题进
Chaired by the General Administration of Construction of the Ministry of Railways on August 4-8, a review meeting was held in Taiyuan of “Technical Specifications for Concrete Construction of Railways” (referred to as Concrete Regulation) and “Test Methods for Concrete and Materials of Railway (Short Test Methods)”. There are 48 delegates from 31 units in the road, including design, construction, operation, scientific research and teaching. Meeting on the concrete method and test methods to conduct a comprehensive review, and the replacement of 16Mn 20MuSi steel bars, the standard size of stone specimens, new filling concrete lateral pressure formula, the volume concrete admixture of stone specimens, concrete specimens Standard size, mixed chloride salt in reinforced concrete, the improvement of preparation strength of underwater concrete, the relationship between prestressed concrete and its product standards, the inner limits of waterproof concrete, right-angle hooks of threaded rebar, the maximum water cement ratio of concrete and the minimum cement content 12 questions into the other