Xinyu Shi
Current Organizations / Institutes
The organizations/institutes from the scholar's latest article
Research Subjects
Xinyu Shi has a total of 45 co-authors. Here are the top co-authors by number of shared publications:
Cheng Zhang
8 shared publicationsLing Wang
State Key Laboratory of Green Building Materials, China Building Materials Academy, Beijing, People’s Republic of China
7 shared publications- Cheng Zhang
State Key Laboratory of Green Building Materials, China Building Materials Academy, Beijing 100024, China
5 shared publications Juan Li
State Key Laboratory of Green Building Materials, China Building Materials Academy, Beijing, People’s Republic of China
5 shared publicationsNele De Belie
Magnel-Vandepitte Laboratory for Structural Engineering and Building Materials, Ghent University, Ghent, Belgium
5 shared publicationsPhilip Van Den Heede
Magnel-Vandepitte Laboratory for Structural Engineering and Building Materials, Ghent University, Ghent, Belgium
5 shared publications
Latest Publications
- 27 June 2023
- Published by Springer Nature in Materials and Structures
- Vol. 56 (6) , 1-13
Report of RILEM TC 281-CCC: effect of loading on the carbonation performance of concrete with supplementary cementitious materials — an interlaboratory comparison of different test methods and related observations
- 27 June 2023
- Published by Springer Nature in Materials and Structures
- Vol. 56 (6) , 1-13
Report of RILEM TC 281-CCC: effect of loading on the carbonation performance of concrete with supplementary cementitious materials — an interlaboratory comparison of different test methods and related observations
- Top Cited Papers
- 21 April 2023
- Published by Elsevier in Cement and Concrete Research
- Vol. 169
Carbonation of blast furnace slag concrete at different CO2 concentrations: Carbonation rate, phase assemblage, microstructure and thermodynamic modelling
- 21 April 2023
- Published by Elsevier in Cement and Concrete Research
- Vol. 169
Top Cited PapersCarbonation of blast furnace slag concrete at different CO2 concentrations: Carbonation rate, phase assemblage, microstructure and thermodynamic modelling
- Open Access
Investigation on the Air Permeability and Pore Structure of Concrete Subjected to Carbonation under Compressive Stress
Concrete structures have to withstand the combined effects of external load and environmental factors. Therefore, it is meaningful to study the durability of concrete under compression and carbonation. The air permeability coefficient (kAu) and pore structure of concrete under uniaxial compression and carbonation were measured by the Autoclam method and mercury intrusion porosimetry (MIP). The Autoclam test results showed that the concrete kAu changed in a concave parabolic manner with the compressive stress level, and the inflection point of the stress level was 45%. The MIP results showed that the characteristic pore structural parameters (porosity, average pore diameter, median pore diameter by area, and median pore diameter by volume) first decreased and then increased with the stress level change. The change in concrete microstructure was a result of the combined effect of pore filling, decalcification, and densification, as well as the split effect. The key pore structural parameters affecting kAu were confirmed using gray relational analysis (GRA). The top three parameters with the highest correlation with the carbonated concrete kAu were porosity (gray relational grade γi = 0.789), median pore diameter by volume (γi = 0.763), and proportion of transition pore volume (γi = 0.827). Furthermore, the regression analysis showed a good linear relation between kAu and the important pore structural parameters.
Open AccessInvestigation on the Air Permeability and Pore Structure of Concrete Subjected to Carbonation under Compressive Stress
Concrete structures have to withstand the combined effects of external load and environmental factors. Therefore, it is meaningful to study the durability of concrete under compression and carbonation. The air permeability coefficient (kAu) and pore structure of concrete under uniaxial compression and carbonation were measured by the Autoclam method and mercury intrusion porosimetry (MIP). The Autoclam test results showed that the concrete kAu changed in a concave parabolic manner with the compressive stress level, and the inflection point of the stress level was 45%. The MIP results showed that the characteristic pore structural parameters (porosity, average pore diameter, median pore diameter by area, and median pore diameter by volume) first decreased and then increased with the stress level change. The change in concrete microstructure was a result of the combined effect of pore filling, decalcification, and densification, as well as the split effect. The key pore structural parameters affecting kAu were confirmed using gray relational analysis (GRA). The top three parameters with the highest correlation with the carbonated concrete kAu were porosity (gray relational grade γi = 0.789), median pore diameter by volume (γi = 0.763), and proportion of transition pore volume (γi = 0.827). Furthermore, the regression analysis showed a good linear relation between kAu and the important pore structural parameters.