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[引言]自2013年以来,广东的高速公路建设热火朝天,在这样的情况下,质量保证显得特别重要。如其不然,则会产生“大跃进”那样的后果,天量投资得不到合理的效益,危及交通安全。笔者身在其中,拟将高强度水泥混凝土的设计加以提炼,以使广大建设者有所获益。一:设计要点:1:要求将水胶比控制好,确保强度,每立方水泥砼中水的用量应小于165kg(干基设计)。水泥用量不少于330kg为宜。2:可用粉煤灰掺入代替部分水泥(约两者总量的15%),使流动
[Introduction] Since 2013, the highway construction in Guangdong is in full swing. Under such circumstances, quality assurance is of particular importance. If not, it will have the consequences such as the Great Leap Forward. The investment in the amount of days will not be justified and the traffic safety will be endangered. The author is in the midst of them, intending to refine the design of high-strength concrete to benefit the majority of builders. A: Design Points: 1: Require better water-cement than control to ensure strength, the amount of water per cubic cement should be less than 165kg (dry-based design). The amount of cement is not less than 330kg appropriate. 2: Can be mixed with fly ash to replace part of the cement (about 15% of the total amount of both), so that the flow