concrete placing

The technology and main methods in concrete transportation and concrete placing, maintenance of concrete and the notable problems are analyzed.

本文分析了混凝土运输中的的技术和主要方法，混凝土的浇筑以及混凝土的养护方法和应注意的问题。

Based on the characteristics of three different grain depots, the paper introduces the process of selection of materials, thermal insulation, concrete placing and curing.

文中针对三种不同粮库的工程特点，介绍了从原材料选择、现场保温措施、混凝土浇灌、养护等的全过程。

Several soldiers mix cement on the street, lifting it up to their colleagues who use it as mortar, placing a concrete block on top of concrete block.

几名士兵在街道上混合水泥，举给同事们当砂浆用，累砌混凝土块。