纳米Fe_2O_3水泥基复合材料制备的响应曲面研究  

Response Surface Research of the Preparation of Nano-Fe_2O_3 Cement-based Composite

作　　者：邢小光[1] 许金余[1,2] 白二雷[1] 朱靖塞 王谕贤 XING Xiaoguang;XU Jinyu;BAI Erlei;ZHU Jingsai;WANG Yuxian(Department of Airfield and Building Engineering,Air Force Engineering University,Xi’an 710038;College of Mechanics and Civil Architecture,Northwest Polytechnic University,Xi’an 710072)

机构地区：[1]空军工程大学机场建筑工程系,西安710038 [2]西北工业大学力学与土木建筑学院,西安710072

出　　处：《材料导报》2018年第8期1367-1372,共6页Materials Reports

摘　　要：配制三种常用高效减水剂溶液,观察纳米Fe_2O_3在三种溶液中的分散效果;基于响应曲面正交旋转组合设计,并考虑纳米Fe_2O_3掺量(Nano-Fe_2O_3content,NFC)、聚羧酸减水剂母液掺量(Polycarboxylate superplasticizer content,PSC)、水胶比(Water-binder rational,WBR)三因素,研究水泥硬化浆体的配比参数与强度间的响应曲面,分析各参数对强度的影响规律。结果表明:纳米Fe_2O_3在聚羧酸高性能减水剂母液溶液中分散效果最好;当配比参数NFC=0.027、PSC=0.017 5、WBR=0.28时,水泥硬化浆体具有较高的强度;从统计学与实践角度来看,响应曲面方程具有较高的可靠性和精度;抗压强度随PSC的增大先增大后减小,随WBR的增大而减小,随NFC的增大而增大;最佳数值附近存在最适宜配方和掺量,使水泥基复合材料具有较好的强度和施工性;响应曲面法(Response surface methodology,RSM)可广泛应用于新型水泥基复合材料的研发领域,发展前景广阔。To investigate the dispersing effect of nano-Fe 2O 3 in three kinds of commonly used superplasticizer solutions,these solutions were prepared.The effects of design parameters including nano-Fe 2O 3 content(NFC),polycarboxylate superplasticizer content(PSC)and the water-binder ratio(WBR)on compressive strength were evaluated based on the response surface orthogonal rotation combination design and using.Sequentially,the response surface between cement hardened paste design parameters and compressive strength was considered.The test result manifested that the dispersion effect of nano-Fe 2O 3 in polycarboxylate superplasticizer liquor solution was best.When NFC is 0.027,PSC is 0.017 5,WBR is 0.28,cement hardened paste can show favorable construction condition.The reliability and accuracy of response surface of nano-Fe 2O 3 cement-based composite can be verified in terms of statistics and application.Compressive strength increased up and then decreased with the increasing of PSC,decreased with the increa-sing of WBR,and increased with the increasing of NFC that suggested there was an optimum value generating the cement-based composite constructed favorable with superior compressive strength.RSM had a promising prospect to be widely used in the field of research and development on the new cement-based composite.

关 键 词：纳米Fe2O3 水泥基复合材料 响应曲面分析法(RSM) 制备技术 分散剂 

分 类 号：TU528.572[建筑科学—建筑技术科学]