摘要
以公式计算取代人工查表是混凝土配合比设计智能化的前提.基于《普通混凝土配合比设计规程》(JGJ 55-2011)的基本原理,将规程中的数据表全部转化为回归公式或推导出的公式,包括粉煤灰与粒化高炉矿渣粉的影响系数、单位用水量与坍落度和粗骨料最大公称粒径的回归关系式、砂率与水胶比和粗骨料最大公称粒径的回归关系式、新拌混凝土表观密度与单位用水量和胶凝材料用量的推导式等.配合比设计中的人工查表过程完全可用公式计算来取代,为混凝土配合比设计智能化提供原理性思路.
It is the precondition for intelligent design of concrete mix to calculate in formulas instead of searching data tables. Based on the elementary principles of Specification for mix proportion design of ordinary concrete(JGJ 55-2011), all the data tables in the specification are converted into regressed formulas or deduced formulas, including the influence coefficients of fly ash and ground granulated blast furnace slag, the relation of water content to slump and maximum nominal particle size of coarse aggregate, the relation of sand ratio to water/binder ratio and maximum nominal particle size of coarse aggregate, the relation of apparent density of fresh concrete to water content and binder content, and so on. The mix design procedures can completely adopt calculations in formulas instead of searching data tables provided in the specification, which provides a thought in principle for intelligent design of concrete mix design.
作者
蔡基伟
王冬辉
许鸽龙
田青
陈劲戈
杜云
CAI Jiwei;WANG Donghui;XU Gelong;TIAN Qing;CHEN Jinge;DU Yun(Kaifeng Research Center for Engineering Repair and Material Recycle,Henan University,Henan Kaifeng 475004,China;School of Civil Engineering and Architecture,Henan University,Henan Kaifeng 475004,China)
出处
《河南大学学报（自然科学版）》
CAS
2022年第5期595-601,609,共8页
Journal of Henan University:Natural Science
基金
河南省科技发展计划项目(152102210053)
2021年河南省科学院科技开放合作项目(210909015)
关键词
普通混凝土
配合比设计
全公式法
规程
ordinary concrete
mix design
formulary method
specification
