Abstract: Applying commodity concrete in municipal read surface engineering, there are many features—— reliable quality guarantee, fast constructien, smaller envirenmental pollution and noise, as well as no table social-economic benifit. In this paper, some features, such as the lange density, flowing of commodity concrete, have been discussed. And some apt operatirg measures have been pointed out, through tests in labs and practices in construction fields.

摘要： 市政道路路面工程使用商品砼不仅具有可靠的质量保证, 而且施工速度快、减少环境污染和燥音喧哗, 有着显著的社会、经济效益.本文着重研讨了商品砼的高稠度、高流动度等性能, 并通过室内试验和现场实践, 提出了一些易于解决问题的操作方法.

关键词: 特细砂, 商品砼, 坍落度, 真空吸水