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混凝土配合比设计应该在保证设计强度和施工和易性前提下，充分利用当地资源。本文为笔者在济南绕城高速公路东线工程收费广场路面水泥混凝土配合比设计的实例。1原料选用1）水泥：选用525＃普通硅酸盐水泥，实测28d水泥抗折强度8．1MPa，抗压强度59．IMPa。2）碎石：由收费岛?
Concrete mix design should make full use of local resources under the premise of ensuring design strength and construction workability. This article is an example of the cement concrete mix design for the toll plaza of the east line project of Jinan Ring Expressway Expressway. 1 Raw material selection 1) Cement: Use 525# ordinary portland cement, measured 28d cement bending strength 8.1MPa, compressive strength 59. IMPa. 2) Gravel: From the Toll Island?