A platform for research: civil engineering, architecture and urbanism
A platform for research: civil engineering, architecture and urbanism
Modification of carbonation-cured cement mortar using biochar and its environmental evaluation
https://orcid.org/0000-0003-3138-5751
Abstract Despite being considered as a potential carbon capture method, carbonation curing of cement-based materials are still accompanied by serious concerns now. Strength loss and shrinkage can be induced by pre-conditioning and excessive carbonation exposure; Difficulty of inward diffusion of CO2 leads to relatively low total carbonation degree. In this work, biochar prepared from corn straw at various pyrolysis temperature was added in cement mortars with dosages of 1–5% to solve these above issues. The results indicate that addition of biochar compensates for the strength loss and increase in water penetration of cement mortar caused by carbonation curing. It was also found that biochar-blended cement mortar possesses improved pore structure and promoted internal CO2 uptake of cement mortar. Besides, environmental evaluation shows that the combination of carbonation curing and biochar can reduce the carbon footprint and energy consumption of concrete products effectively.
Modification of carbonation-cured cement mortar using biochar and its environmental evaluation
https://orcid.org/0000-0003-3138-5751
Abstract Despite being considered as a potential carbon capture method, carbonation curing of cement-based materials are still accompanied by serious concerns now. Strength loss and shrinkage can be induced by pre-conditioning and excessive carbonation exposure; Difficulty of inward diffusion of CO2 leads to relatively low total carbonation degree. In this work, biochar prepared from corn straw at various pyrolysis temperature was added in cement mortars with dosages of 1–5% to solve these above issues. The results indicate that addition of biochar compensates for the strength loss and increase in water penetration of cement mortar caused by carbonation curing. It was also found that biochar-blended cement mortar possesses improved pore structure and promoted internal CO2 uptake of cement mortar. Besides, environmental evaluation shows that the combination of carbonation curing and biochar can reduce the carbon footprint and energy consumption of concrete products effectively.
Modification of carbonation-cured cement mortar using biochar and its environmental evaluation
https://orcid.org/0000-0003-3138-5751
Abstract Despite being considered as a potential carbon capture method, carbonation curing of cement-based materials are still accompanied by serious concerns now. Strength loss and shrinkage can be induced by pre-conditioning and excessive carbonation exposure; Difficulty of inward diffusion of CO2 leads to relatively low total carbonation degree. In this work, biochar prepared from corn straw at various pyrolysis temperature was added in cement mortars with dosages of 1–5% to solve these above issues. The results indicate that addition of biochar compensates for the strength loss and increase in water penetration of cement mortar caused by carbonation curing. It was also found that biochar-blended cement mortar possesses improved pore structure and promoted internal CO2 uptake of cement mortar. Besides, environmental evaluation shows that the combination of carbonation curing and biochar can reduce the carbon footprint and energy consumption of concrete products effectively.
Modification of carbonation-cured cement mortar using biochar and its environmental evaluation
Chen, Tiefeng (author) / Zhao, Liying (author) / Gao, Xiaojian (author) / Li, Linshan (author) / Qin, Ling (author)
2022-09-10
Article (Journal)
Electronic Resource
English
Microstructural changes caused by carbonation of cement mortar
| Tema Archive | 2001
Microstructural changes caused by carbonation of cement mortar
| Online Contents | 2001
Carbonation resistance of coated rebar in cement mortar
| British Library Conference Proceedings | 1996