... profilometer 路面平整度测定仪 proportioning of cement concrete 水泥混凝土配合比 protection forest fire-proof road 护林防火道路 ...
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The proportioning characteristics and performance requirements to admixtures of pavement roller compacted cement concrete are introduced in this paper.
介绍路面碾压混凝土的配合比特点及对外加剂的性能要求；
For pumping concrete mixture the problem of reducing the cement content and keeping better workability was also solved by using optimum proportioning.
优选配合比解决了泵送混凝土与减少水泥用量和低坍落度的矛盾。
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