基于响应曲面法的纳米颗粒增强水泥浆体制备研究  

Preparation of Nano-Particles Reinforced Cement Paste Based on Response Surface Method

作　　者：王志航 白二雷[1] 许金余[1,2] 罗鑫 孟欣 刘高杰 任彪 朱靖塞 WANG Zhihang;BAI Erlei;XU Jinyu;LUO Xin;MENG Xin;LIU Gaojie;REN Biao;ZHU Jingsai(Aviation Engineering School,Air Force Engineering University,Xi’an 710038,China;College of Mechanics and Civil Architecture,Northwest Polytechnic University,Xi’an 710072,China;National Defense Engineering Research Institute,Academy of Military Sciences,Beijing 100036,China;The Third Bureau of China Maritime Police Bureau,Guangzhou 510006,China)

机构地区：[1]空军工程大学航空工程学院,西安710038 [2]西北工业大学力学与土木建筑学院,西安710072 [3]军事科学院国防工程研究院,北京100036 [4]中国海警局直属第三局,广州510006

出　　处：《硅酸盐通报》2021年第12期3918-3926,共9页Bulletin of the Chinese Ceramic Society

基　　金：国家自然科学基金(51208507);陕西省青年科技新星计划(2013KJXX-81);军队科研项目(JK20191A010001)。

摘　　要：基于响应曲面法,考虑纳米颗粒掺量、减水剂掺量、水胶比三个关键影响因素,以水泥硬化浆体抗压强度为响应,利用中心复合设计法设计试验,建立纳米SiO_(2)、纳米CaCO_(3)、纳米Al_(2)O_(3)增强水泥浆体的强度模型,并以纳米CaCO_(3)增强水泥浆体强度模型为例,分析各因素对强度的影响规律,对强度模型进行验证。结果表明,当纳米颗粒与水泥质量比为0.0270、减水剂与水泥质量比为0.0175、水胶比为0.25时,三种纳米颗粒增强水泥浆体具有较高强度。纳米SiO_(2)、CaCO_(3)、Al_(2)O_(3)增强水泥浆体的强度模型具有较高的精度和可靠性。纳米CaCO_(3)增强水泥浆体的抗压强度响应值随着纳米颗粒掺量、减水剂掺量的增大先增大后减小,随着水胶比的增大逐渐减小。Based on the response surface method,considering the three key influencing factors of nano-particles content(NPC),polycarboxylates superplasticizer content(PSC),and water-binder ratio(WBR),the response was based on the compressive strength of hardened cement paste.Using the central composite design method to design experiments,the strength models of nano-SiO_(2),nano-CaCO_(3),and nano-Al_(2)O_(3) reinforced cement paste were established.The nano-CaCO_(3) reinforced cement paste strength model was taked as an example to analyze the influences of various factors on the strength and verify the strength model.The results show that when the mass ratio of nano-particle to cement is 0.0270,the mass ratio of polycarboxylates superplasticizer to cement is 0.0175,and water-binder ratio is 0.25,the three nano-particles reinforced cement pastes have higher strength.The strength models of nano-SiO_(2),nano-CaCO_(3),nano-Al_(2)O_(3) reinforced cement paste have high accuracy and reliability.The compressive strength response value of nano-CaCO_(3) reinforced cement paste first increases and then decreases with the increase of NPC and PSC,and gradually decreases with the increase of WBR.

关 键 词：纳米颗粒 水泥浆体 制备 强度模型 响应曲面法 中心复合设计法 

分 类 号：TU528.572[建筑科学—建筑技术科学]