正交试验综合评分法用于预拌泡沫混凝土配合比优化设计技术研究  

Research on mix proportion optimization design of ready-mixed foam concrete using orthogonal test comprehensive scoring method

作　　者：戴国欣 马志超 张海峰 李海波 DAI Guoxin;MA Zhichao;ZHANG Haifeng;LI Haibo(Shandong Shunxin Concrete Co.,Ltd.,Jinan 250021,China;Jinan Construction Engineering Group Building Materials Technology Co.,Ltd.,Jinan 250021,China;Jining Zhonglian Concrete Co.,Ltd.,Jining 272000,China;Shandong Guocai Yixin Construction Technology Co.,Ltd.,Jinan 250021,China)

机构地区：[1]山东舜鑫混凝土有限公司,山东济南250021 [2]济南建工集团建材科技有限公司,山东济南250021 [3]济宁中联混凝土有限公司,山东济宁272000 [4]山东国材益新建筑科技有限公司,山东济南250021

出　　处：《混凝土》2024年第6期173-179,共7页Concrete

摘　　要：通过正交试验,针对胶凝材料组成、矿物掺合料、水胶比、发泡剂等因素,对泡沫混凝土的发泡效果、湿表观密度、凝结时间、抗压强度等性能的影响程度和规律进行了研究分析,采用综合评分法确定最优配合比,结果表明水胶比定则并不适用于泡沫混凝土;通过掺加和调整减水剂、稳泡剂和保水剂、促凝剂对泡沫混凝土的流动性、稳泡性能及凝结性能进行改进;通过加压试验方法测定泡沫混凝土的压力变化量,为配合比设计优化提供评价依据。The influence degree and law of foaming effect,wet apparent density,setting time and compressive strength of foamed concrete were studied and analyzed by orthogonal test with the factors of cementitious material composition,mineral admixtures,water binder ratio,and foaming agent.The comprehensive scoring method is used to determine the optimal mix ratio.The results indicate that the water binder ratio rule is not applicable to foam concrete.The fluidity,foam stability and setting performance of foam concrete were optimized by adding and adjusting superplasticizer,foam stabilizing agent,water retaining agent and accelerator.The pressure change of wet apparent density of foam concrete was measured by pressure test method,which provided an evaluation basis for the optimization of mix ratio design.

关 键 词：机预拌泡沫混凝土 多因素正交试验法 发泡剂 稳泡性能 湿表观密度 

分 类 号：TU528.062[建筑科学—建筑技术科学]