A Comparative Study of Factors Influencing Hydration Stoppage of Hardened Cement Paste

被引：13

作者：

Mezhov, Alexander ^{[1
,2
]}

Kulisch, Daniele ^{[2
]}

Goncharov, Antonina ^{[2
]}

Zhutovsky, Semion ^{[2
]}

机构：

[1] Bundesanstalt Mat Forschung & Prufung BAM, Div Technol Construct Mat, D-12205 Berlin, Germany

[2] Technion Israel Inst Technol, Fac Civil & Environm Engn, IL-3200003 Haifa, Israel

来源：

SUSTAINABILITY | 2023年 / 15卷 / 02期

关键词：

hydration stoppage; solvent replacement; soaking time; sample piece size; DIFFERENT DRYING TECHNIQUES; PORE STRUCTURE; WATER REMOVAL; MICROSTRUCTURE; MORPHOLOGY; EVOLUTION;

D O I：

10.3390/su15021080

中图分类号：

X [环境科学、安全科学];

学科分类号：

08 ; 0830 ;

摘要：

There is no consensus on which hydration stoppage method is optimal to preserve the microstructure and mineral composition of samples, especially considering the specific aspects of different testing methods, such as TGA, MIP, or XRD. This paper presents a quantitative comparison between the most popular hydration stoppage strategies and parameters such as the sample piece size, the soaking time in a solvent, and the type, as examined on cement paste hydrated for 7 days. It was found that the carbonation appears either for samples smaller than 2.36 mm and bigger than 4.75 mm or samples soaked in a solvent for longer than 1 h. Fast solvent replacement leads to ettringite diminution and total pore volume increase. Among others, solvent replacement with subsequent gentle heating under a vacuum was found to be the most efficient, whereas it was experimentally demonstrated that isopropyl alcohol stops hydration faster than ethanol and acetone.

引用

页数：21

共 50 条

[31] Dominant factors on the early hydration of metakaolin-cement paste
Zhonghe Shui
Tao Sun
Zhiheng Fu
Guiming Wang
Journal of Wuhan University of Technology-Mater. Sci. Ed., 2010, 25 : 849 - 852
[32] Early age strain recovery of hardened cement paste - microstructural factors
Beaudoin, JJ
Tamtsia, BT
ADVANCES IN CEMENT RESEARCH, 2003, 15 (02) : 51 - 56
[33] Damage process in hardened cement paste
Cai, XH
Luo, YQ
ACI MATERIALS JOURNAL, 1996, 93 (04) : 378 - 385
[34] INTERACTION OF HARDENED CEMENT PASTE AND WATER
WITTMANN, FH
JOURNAL OF THE AMERICAN CERAMIC SOCIETY, 1973, 56 (08) : 409 - 415
[35] SULFATE ATTACK ON HARDENED CEMENT PASTE
WANG, JG
CEMENT AND CONCRETE RESEARCH, 1994, 24 (04) : 735 - 742
[36] FIBROUS STRUCTURE IN A HARDENED CEMENT PASTE
BALL, MC
STAPLETO.G
RAFFLE, JF
MAGAZINE OF CONCRETE RESEARCH, 1973, 25 (83) : 99 - 101
[37] INTERACTION OF HARDENED CEMENT PASTE AND WATER
WITTMANN, F
AMERICAN CERAMIC SOCIETY BULLETIN, 1972, 51 (04): : 340 - &
[38] STUDY OF CEMENT HYDRATION BY MEASURING THE DIELECTRIC PROPERTIES OF CEMENT PASTE.
Osiowski, A.
Annales de l'Institut Technique du Batiment et des Travaux Publics, 1975, (325): : 88 - 92
[39] FATIGUE BEHAVIOR OF HARDENED CEMENT PASTE
ALLICHE, A
FRANCOIS, D
CEMENT AND CONCRETE RESEARCH, 1986, 16 (02) : 199 - 206
[40] Hygral stress in hardened cement paste
Beddoe, RE
Lippok, R
MATERIALS AND STRUCTURES, 1999, 32 (223) : 627 - 634

← 1 2 3 4 5 →