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国家自然科学基金(51379163): 作品数：13被引量：76H指数：5; 导出分析报告; 相关作者：何真蔡新华李洋路新瀛杨梦卉更多>>; 相关机构：武汉大学清华大学武汉科技大学更多>>; 相关期刊：《水力发电学报》《水利学报》《建筑材料学报》《Journal of Wuhan University of Technology(Materials Science)》更多>>; 相关主题：孔结构水泥基材料C4AF冲蚀混凝土更多>>; 相关领域：建筑科学化学工程水利工程更多>>

Influences of Ignition Temperature, Urea-to-Metal Nitrates Molar Ratio, and Further Calcination on Synthesis of C_4AF via the SPCR Method: 《Journal of Wuhan University of Technology(Materials Science)》2018年第5期1168-1175,共8页LI Yang HE Zhen JIANG Rui; Funded partly by the National "973" Program of China(No.2015CB655101);National Natural Science Foundation of China(No.51379163); The self-propagating combustion reaction（SPCR）method was employed to synthesize C4AF using metal nitrates as cation precursors and urea as fuel.Thermal decomposition behavior of dried gels,phase identification and c...; 关键词：C4AF combustion synthesis self-propagating brownmillerite purity low temperature

Synthesis Mechanism and Material Characterization of C4AF Obtained by the Self-propagating Combustion Reaction Method: 《Journal of Wuhan University of Technology(Materials Science)》2018年第5期1099-1107,共9页HE Zhen LI Yang; Funded partly by the National“973”Program of China(No.2015CB655101);National Natural Science Foundation of China(No.51379163); To investigate the influence of preparation process on the properties of synthesized C4AF,the powder was prepared via the self-propagating combustion reaction（SPCR）method using urea as fuel and metal nitrates as cat...; 关键词：C4AF self-propagating SPCR urea ^27Al NMR apparent activation energy

Dynamic Rheological Behavior of Low Water-to-binder Ratio Mortars under Large Amplitude Oscillatory Shear(LAOS): 《Journal of Wuhan University of Technology(Materials Science)》2018年第3期608-618,共11页何真 JIANG Rui LI Yang; Fundey by the Major State Basic Research Development Program of China(973 Program)(No.2015CB655101);the National Natural Science Foundations of China(No.51379163); This work focuses on the dynamic rheological behavior of low water-to-binder ratio cement mortars blended with fly ash microspheres（FAM） or silica fume（SF）. The initial slump flow of each group has been controlled...; 关键词：dynamic rheology viscoelastic behavior LAOS mortar mineral admixture Lissajous plots Fourier transform

Hydration Mechanism of Cement-based Materials with Different Si-rich Mineral Admixtures被引量：3: 《Journal of Wuhan University of Technology(Materials Science)》2018年第3期654-660,共7页何真胡玲玲; Funded by the National Key Research Program(973 Program)(No.2015CB655101);the National Natural Science Foundation of China(No.51379163); Early hydration mechanism of cement-based materials with silica fume, nano-SiO2 and silica sol of different contents was investigated, and the detailed effect of these Si-rich mineral admixtures in three stages of ear...; 关键词：silica fume nano-SiO2 silica sol hydration kinetics model early hydration CH content

不同岩性石粉细度评价方法的稳定性研究被引量：8: 《水力发电学报》2018年第5期133-141,共9页何真蒋睿胡骏; 国家自然科学基金(51379163);科技部973项目(2015CB655101); 以不同岩性、不同细度的石粉为研究对象,采用勃氏透气法、负压筛法、水筛法和激光粒度分析法表征其细度,借助统计学手段分析各测试方法的数据可靠性。结果表明,勃氏透气法试验结果稳定性较好,是一种快速而有效的石粉细度测试方法;筛分...; 关键词：石粉细度比表面积筛分激光粒度分析

Effect of Al in Slag Blended Cement Paste under Sulfate Attack被引量：1: 《Journal of Wuhan University of Technology(Materials Science)》2017年第5期1087-1094,共8页胡玲玲何真 TANG Shengwen LI Yang; Funded by the National Key Research Program(973 Program)(No.2015CB655101);National Natural Science Foundation of China(No.51379163); Unilateral sulfate attack of cementitious materials containing 40% slag with different water to binder ratios was investigated. The results showed that the degradation of slag blended cement pastes was nearly from the...; 关键词：sulfate attack slag aluminum ^（27）AlNMR

碾压混凝土中高掺石灰石粉与粉煤灰的耦合作用被引量：11: 《水利学报》2017年第4期488-495,共8页杨梦卉何真杨华美; 国家重点基础研究发展计划项目973计划(2013CB035901;2015CB655101);国家自然科学基金项目(51379163); 以占胶凝材料总量60%的石灰石粉与粉煤灰进行不同比例复掺,开展了不同胶凝材料碾压混凝土的抗压强度、抗冻性能和抗渗性能试验研究,利用水化热、扫描电镜以及压汞法对不同比例石灰石粉与粉煤灰胶凝体系的水化过程与微结构形成进行了分...; 关键词：石灰石粉粉煤灰碾压混凝土耦合作用

K^+/Na^+摩尔比对高碱含量水泥基材料早期开裂敏感性的影响被引量：2: 《水利学报》2016年第12期1484-1492,共9页何真曹更新李洋胡玲玲; 国家重点基础研究发展计划(973计划)项目(2015CB655101;2013CB0359001);国家自然科学基金项目(51379163); 利用椭圆环开裂仪、比长仪、等温量热仪、压汞仪(MIP)及扫描电子显微镜(SEM),重点研究了在高碱含量水泥基材料中,K^+/Na^+摩尔比对其早期开裂敏感性的影响及机制,并探究了粉煤灰对不同K^+/Na^+摩尔比高碱水泥基材料早期开裂敏感性的影...; 关键词：碱金属离子开裂收缩水化进程孔结构

Na^+和K^+对水泥基材料早期收缩性能的影响被引量：8: 《水利学报》2016年第11期1345-1351,共7页何真李洋蔡新华陈晓润; 国家自然科学基金项目(51379163);科技部973项目(2013CB035901;2015CB655101); 利用压汞、纳米压痕以及27Al固体核磁共振方法,系统研究了不同碱金属离子(Na^+和K^+)与含量对水泥基材料早期自收缩和干燥收缩性能的影响规律。结果表明,超量的Na^+或K^+均促进了水泥基材料早期自收缩和干燥收缩,但K^+的促进作用明显大...; 关键词：收缩碱类型孔结构水化硅酸钙纳米压痕核磁共振

Early Carbonation Behavior of High-volume Dolomite Powder-cement Based Materials被引量：4: 《Journal of Wuhan University of Technology(Materials Science)》2015年第3期541-549,共9页杨华美何真 SHAO Yixin; Funded by the National Key Research Program(973 Program)(No.2013CB035901);the National Natural Science Foundation of China(No.51379163); Combined with DTG analysis, X-Ray diffraction analysis （XRD） and field emission scanning electron microscopy analysis （FSEM） affiliated with energy dispersive spectrometer analysis （EDS）, the early hydration and...; 关键词：dolomite powder cement based material early carbonation mechanism MICROSTRUCTURE

国家自然科学基金(51379163)