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近两年来,农房用混凝土构件发展很快,这对缓和农村建筑材料供需矛盾起到一定作用。去年,混凝土构件列入生产计划的产量达178万米~3。但是在技术、产品质量上存在不少问题:①盲目发展,管理混乱,还出现一些无执照生产构件的个体户或营业户。②技术水平低,粗制滥造,许多农房混凝土构件厂、点没有技术人员。由于不懂技术和没有必要的设备,有很多厂原材料进厂不检验,水灰比不当,质量低劣。③原材料质量差,大部分厂、点没有
In the past two years, the development of concrete components for rural housing has been rapid, which has played a role in alleviating the contradiction between the supply and demand of rural construction materials. Last year, the production of concrete components in the production plan reached 1.78 million m 3 . However, there are many problems in the technology and product quality: 1 blind development, management confusion, there are some unlicensed production components of individual or business households. 2 The technical level is low, and the construction of concrete units and points of many rural houses has no technicians. Due to the lack of understanding of technology and the lack of necessary equipment, there are many factories that do not check raw materials into the factory, and have poor water-cement ratio and poor quality. 3 The quality of raw materials is poor, most factories and sites do not have