论文部分内容阅读
关于采用成组立模生产粉煤灰矿渣混凝土承重内墙板所存在的裂缝问题,由于产生裂缝的因素比较复杂,材性、构造处理和生产工艺均互有影响,一直未能彻底解决。裂缝墙板约占13%～41%,墙板产生裂缝的部位,一般均在门洞口上角,形成斜裂或竖裂,最大宽度超过0.3毫米,最大长度从门洞口上角一直延伸到墙板的顶部。在无产阶级文化大革命和批林批孔运动的推动下,为了探求解决粉煤灰矿渣混凝土承重内墙板(厚14厘米)存在的裂缝问题,在市建委和原建工局的关怀和支持下,由国家建委建研院结构所,市建筑设计院和我厂,于1974年上半年共同进行了综合试验,并初步取得了成效。
With respect to the cracks in the production of fly ash slag concrete bearing inner wall panels by using a group of vertical molds, due to the complexity of the factors that generate cracks, the material properties, the structural treatment and the production process are mutually influential and have not been completely resolved. Cracked wall panels account for about 13% to 41%. Wall cracks are generally at the upper corner of the door opening, forming oblique cracks or vertical cracks. The maximum width exceeds 0.3 mm. The maximum length extends from the upper corner of the door opening to the wall. The top of the board. Under the impetus of the proletarian cultural revolution and the approval of the Lin Piao and Confucius movements, in order to solve the problem of the cracks in the fly ash clinker concrete bearing inner wall plates (thickness 14 cm), they are under the care and support of the municipal construction commission and the former construction industry bureau. The National Institute for Construction and Research Institute of Construction, the Institute of Architectural Design of the State Construction Administration, and the City Construction Design Institute and our factory jointly conducted comprehensive tests in the first half of 1974 and achieved preliminary results.