我国年产混凝土2万立方米以下的中小型预制构件厂,近年来为提高生产技术水平和生产率,改变经济效果较差的落后状况,正在有计划、有步骤地进行技术改造。为适应这一形势的需要,应从技术上明确当前中小型预制构件厂技术改造的重点内容和具体工艺方法,并提供包括改造经费估算和预期应达到的技术经 The small and medium-sized prefabricated component plants with an annual output of 20,000 cubic meters or less of concrete in recent years have undergone planned and step-by-step technological transformations in order to improve production technology and productivity and change the backwardness of economic effects. In order to meet the needs of this situation, it is necessary to technically clarify the key content and specific technological methods of the current technological transformation of small and medium-sized prefabricated component plants, and provide technical estimates that include the estimation of reform costs and expected