Volume and surface fractal dimensions of pore structure by NAD and LT-DSC in calcium sulfoaluminate cement pastes

被引：62
|
作者：
Tang, S. W. [1 ,2 ]
He, Z. [1 ]
Cai, X. H. [1 ]
Cai, R. J. [1 ]
Zhou, W. [1 ]
Li, Z. J. [2 ]
Shao, H. Y. [2 ]
Wu, T. [3 ]
Chen, E. [2 ]
机构：
[1] Wuhan Univ, State Key Lab Water Resources & Hydropower Engn S, Wuhan, Peoples R China
[2] Hong Kong Univ Sci & Technol, Dept Civil & Environm Engn, Clear Water Bay, Hong Kong, Peoples R China
[3] China Univ Geosci, Sch Automat, Wuhan, Peoples R China
来源：
CONSTRUCTION AND BUILDING MATERIALS | 2017年 / 143卷
基金：
中国国家自然科学基金;
关键词：
Water to cement ratio; Hydration; Superplasticizer; Pore; Fractal; Cement; Nitrogen; Adsorption; Desorption; Differential scanning calorimetry; THERMAL-CONDUCTIVITY; EVOLUTION; HYDRATION; SUPERPLASTICIZER; COMPATIBILITY; PERMEABILITY; POROSITY;
D O I：
10.1016/j.conbuildmat.2017.03.140
中图分类号：
TU [建筑科学];
学科分类号：
0813 ;
摘要：
This paper presents a preliminary work to evaluate influences of water to cement ratio, hydration age and content of superplasticizer on porosity, volume and surface fractal dimensions of pore structure in 56 groups of calcium sulfoaluminate cement pastes by nitrogen adsorption/desorption (NAD) tests and low temperature differential scanning calorimetry (LT-DSC). Additionally, a fractal sponge model is developed to analyze intrinsic relations among porosity, volume and surface fractal dimensions by changing the removed number of cells, iterate steps and number of fractal cells. (C) 2017 Elsevier Ltd. All rights reserved.
引用
收藏
页码：395 / 418
页数：24
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