Effect of temperature on CO2 curing, compressive strength and microstructure of cement paste
Yancheng Institute of Technology · OsloMet – Oslo Metropolitan University · +3 more institutions
Abstract
This study investigated the effect of temperature (5 °C–50 °C) on the carbonation process, compressive strength and microstructure of CO2-cured cement paste. Results showed that the carbonation process and rate were significantly affected by temperature and time. When the curing temperature increased, the rate of improvement of cement paste's properties was accelerated. The carbonation reaction was mainly kinetically controlled by product layer diffusion with an activation energy of about 10.8 kJ/mol. Temperature had greatly affected the structural transformation, morphological changes, size and amounts of calcium carbonate polymorphs (calcite, aragonite and vaterite) as well as their degree of crystallinity…
Citation impact
- FWCI
- 26.05
- Percentile
- 100%
- References
- 55
Authors
6Topics & keywords
- Vaterite
- Carbonation
- Materials science
- Microstructure
- Compressive strength
- Curing (chemistry)
- Aragonite
- Crystallinity
Funding
- JPJiangsu Provincial Key Laboratory of New Environmental ProtectionAwards: JH201845, JH201802
- NNNational Natural Science Foundation of ChinaAwards: 52078204, U1605242, 52050410333
- SAScience and Technology Support Program of Jiangsu ProvinceAward: BZ2020012
- SAScience and Technology Program of Gansu Province