混凝土配合比优化设计的紧密堆积理论综述  

Review of the Packing Theory for Optimization Design of Concrete Mix Proportion

作　　者：王尚伟 朱海堂[1,2] 王博 寇磊[1] WANG Shangwei;ZHU Haitang;WANG Bo;KOU Lei(School of Water Conservancy Engineering,Zhengzhou University,Zhengzhou 450000,China;College of Civil Engineering,Henan University of Engineering,Zhengzhou 451191,China)

机构地区：[1]郑州大学水利科学与工程学院,郑州450000 [2]河南工程学院土木工程学院,郑州451191

出　　处：《材料导报》2021年第3期3085-3091,共7页Materials Reports

基　　金：国家自然科学基金(51779231);水文水资源与水利工程科学国家重点实验室开放基金(2017491611)。

摘　　要：混凝土的配合比设计一直是混凝土行业普遍关注的问题。普通混凝土配合比设计一般是基于相应的混凝土配合比设计规范,而规范在配合比设计的过程中对材料形貌和堆积方式等缺乏相应的针对性指导;对一些新型混凝土材料,如工程水泥基复合材料和超高性能混凝土材料等,相应规范更需要进一步完善。为了解决这一问题,业界普遍认为应采用紧密堆积理论指导混凝土尤其是新型混凝土材料的配合比设计。紧密堆积理论分为连续级配理论和间断级配理论,在综合考虑多种因素的情况下,连续级配理论更适合用来指导混凝土的配合比设计。同时,湿堆积理论是近年发展起来的一种配合比设计方法,具有很高的应用价值和很好的发展前景。本文从紧密堆积理论的发展历程入手,对连续级配理论、间断级配理论和湿堆积理论等进行了综述,对具有代表性的几个不同类型的堆积理论进行了系统的介绍和评价,以期为用紧密堆积理论来指导混凝土的配合比设计提供参考。最后,为今后进一步开展堆积理论的研究,建立更精细化的堆积模型提出了展望。How to optimize the mix proportion of concrete is an important problem that the concrete industry concerns.The mix proportion of common concrete based on the relevant standards,however,the standards are lack of the specification with different concrete mixtures,especially for the new type of concrete such as engineered cementitious composites and ultra-high performance concrete.Hence,the packing theory for solving the problems above should be suggested.The packing theories are classified as continuous grading theory and intermittent grading theory.Above all,the continuous ghrading theory is better in the concrete mix proportion,while the wet packing theory which is developed in recent years has a bright future for the optimization design of concrete mix proportion.Based on the development process of the packing density,this article has a review of the continuous grading theory,intermittent grading theory and wet packing theory,meanwhile,several representative packing models are introduced and evaluated for providing references to optimize the concrete mix proportion.Finally,further study on the packing theory and the establishment of more accurate packing models are prospected.

关 键 词：混凝土 配合比 堆积理论 连续级配 间断级配 

分 类 号：TU528[建筑科学—建筑技术科学]