Concrete mix is from a project of Beijing. Confirm materials and dosage according to the workability, slump constant, slump loss of one hour in trial mix.
混凝土配合比采用北京某工程中的实际配比,通过试拌混凝土的和易性、坍落度、1h坍落度损失以及凝结时间最终确定原材料和掺量。
参考来源 - 钢筋混凝土阻锈剂的研究·2,447,543篇论文数据，部分数据来源于NoteExpress
Results indicate that proper quantities of ultra-fine limestone flour can help engineers to decrease the time-loss of concrete slump constant and to increase concrete strength.
适当的掺量可减少混凝土坍落度的经时损失，提高混凝土强度。
This paper focuses on mixing cement concrete batching at how to improve the preparation of precision pneumatic valves, and how to accurately control the concrete slump constant.
主要论述拌和水泥混凝土配料时如何提高气动闸门的配料精度，如何比较准确地控制混凝土的坍落度。
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