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一、泵送混凝土施工的特点十年以前在上海宝钢工程中我国真正使用了泵送混凝土施工。至今,上海的泵送混凝土量占整个商品混凝土的85％以上(注:1986年统计上海商品混凝土量为60万m~3)。泵送混凝土受到如此青睐与它具有如下特点有关。 1.施工速度快、周期短过去一些大型工程往往要投入大量的人力物力,施工时间也很长。如1958年上钢一
First, the characteristics of pumping concrete construction Ten years ago in Shanghai Baosteel project, China really used pumped concrete construction. So far, Shanghai’s pumped concrete accounts for more than 85% of the total commercial concrete (Note: In 1986, Shanghai’s commercial concrete volume was 600,000 m 3). Pumping concrete so favored and it has the following characteristics. 1. Fast construction and short cycle In the past, some large-scale projects often required a lot of manpower and material resources, and the construction time was also very long. Such as 1958 on the steel