scholarly journals Mitigation of Drying and Carbonation Shrinkage of Cement Paste using Magnesia

2018 ◽  
Vol 16 (9) ◽  
pp. 476-484 ◽  
Author(s):  
Hailong Ye
Keyword(s):  
Cement Paste ◽  
Carbonation Shrinkage

Chemo-Micro-Dilatation Modeling of Carbonation Shrinkage Phenomenon of the Porous Mortars

2011 ◽  
Vol 261-263 ◽  
pp. 680-684 ◽  
Author(s):  
T. X. Dinh ◽  
J. Jeong ◽  
H. Ramézani ◽  
Z. Q. Feng
Keyword(s):  
Cement Paste ◽  
Cement Mortar ◽  
Ph Value ◽  
Empirical Method ◽  
Micro Structure ◽  
Unknown Parameters ◽  
Scientific Goal ◽  
Different Types ◽  
Semi Empirical ◽  
Carbonation Shrinkage

In this paper, we investigate the CO2 carbonation on porous materials such as the cement paste mortar. Our scientific goal is to model the CO2 carbonation effect on the porous cement mortar by the micro-dilatation theory and to determine the chemo-mechanical stress development due to the chemical reactions. In fact, this phenomenon will modify not only the pH value of the cement paste but also the micro-structure due to collapsing pore-network. Based upon the micro-dilatation theory originally proposed by Cowin and Nunziato, four unknown parameters related to the micro-structure will be determined for the cement mortar using the semi-empirical method and numerical modeling. The experimental carbonation tests on two different types of cement paste (CEMI and CEMIII) have been realized to capture carbonated affected zones and to measure their shrinkage deformations.

scholarly journals EFFECT OF RELATIVE HUMIDITY ON CARBONATION SHRINKAGE AND HYDRATION PRODUCT OF CEMENT PASTE

2020 ◽  
Vol 73 (1) ◽  
pp. 71-78
Author(s):  
Yuya SUDA ◽  
Jun TOMIYAMA ◽  
Tsuyoshi SAITO ◽  
Tatsuhiko SAEKI
Keyword(s):  
Relative Humidity ◽  
Cement Paste ◽  
Hydration Product ◽  
Carbonation Shrinkage

Drying and carbonation shrinkage of cement paste containing alkalis

2017 ◽  
Vol 50 (2) ◽  
Author(s):  
Hailong Ye ◽  
Aleksandra Radlińska ◽  
Juliana Neves
Keyword(s):  
Cement Paste ◽  
Carbonation Shrinkage
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