基于群体平衡模型对泡沫混凝土浆体含气量的研究  

Study of air content in foam concrete slurry based onpopulation balances modelling

作　　者：杨昭乾 王东[2] 杨阳 李平 YANG Zhao-qian;WANG Dong;YANG Yang;LI Ping(College of Civil Engineering,Longdong University,Qingyang 745000,Gansu;School of Geography and Planning,Longdong University,Qingyang 745000,Gansu)

机构地区：[1]陇东学院土木工程学院,甘肃庆阳745000 [2]陇东学院地理与城乡规划学院,甘肃庆阳745000

出　　处：《陇东学院学报》2023年第5期76-80,共5页Journal of Longdong University

基　　金：庆阳市科技计划项目(QY2021A-S058);甘肃省青年科技基金计划(22JR5RM212);甘肃省自然科学基金项目(21JR11RM052);甘肃省高等学校创新基金项目(2022A-136);甘肃省建设科技项目(JK2021-56);庆阳市自然科学基金项目(QY2021A-F023)

摘　　要：泡沫混凝土作为一类新兴的建筑材料,由于其自重轻、保温、强度要求低等特性,越来越多应用于各种复杂的环境。在泡沫混凝土生产的过程中,总会伴随着大量的气泡破裂和融合,这为设计预期干密度的泡沫混凝土带来了很大的困难。通过比较三种不同发泡剂生产的泡沫在不同的搅拌速度下的含气量变化,提出了一种新的模拟含气量变化的模型,为设计符合预期密度的泡沫混凝土提供更深入的理论支撑。Foam concrete,as an emerging class of building materials,is increasingly used in a variety of complex environments due to its light weight,thermal insulation and low strength requirements.The process of foam concrete production is always accompanied by a large number of bubble ruptures and fusions,which brings great difficulties in designing foam concrete with expected dry density.In this paper,by comparing the air content changes of foams produced by three different blowing agents at different mixing speeds,a new model to simulate the air content changes is proposed,which provides a more in-depth theoretical support for the design of foam concretes with the desired density.

关 键 词：泡沫混凝土 发泡剂 搅拌速度 含气量 群体平衡模型 

分 类 号：TU528[建筑科学—建筑技术科学]