针对这一点，本文研究了设计水泥混凝土配合比的相关问题。
In response to this, this paper studies the related problems about proportion design of cement concrete.
介绍了在水泥混凝土中，采用粉煤灰替代30 %水泥的高掺量粉煤灰混凝土的配合比设计，以及试件力学性能的室内实验结果。
This paper introduces the mix proportion of high fly ash content concrete instead of 30% cement with fly ash and some experiment results of the test examples in laboratory.
简要说明滑模摊铺机配套设备配合比设计，施工工艺及提高水泥混凝土路面的内在质量和动态平整度。
The text discusses mixture ratio design and construction technics of corollary equipment of slide spreading machine, and improve internal quality of cement concrete pavement and dynamic smoothness.
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