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。

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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。

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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。

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The first stage involved placing a special concrete blanket across the depressurised pipeline.

BBC: Shell claims progress on North Sea oil leak