The DOI matches its Crossref record; 5 of the 5 references it cites were found in a registry or an index.
Effects of carbonated hardened cement paste powder on hydration and microstructure of Portland cement
Abstract
Abstract Recovering aggregates from recycled concrete produces a large amount of powder, which contains hardened cement paste and is classified as a corrosive hazardous material. This study used CO2 to treat hardened cement paste powder and to investigate how the incorporation of uncarbonated and carbonated hardened cement paste powder into cement affects the hydration and microstructure development of cement. Carbonated hardened cement paste powder consists mainly of calcite and silica gel. Replacement of cement by uncarbonated cement paste powder content from 10 to 30% by the mass of cement decreases, while replacement of cement with 10–20% carbonated hardened cement paste powder increases the strength of cement up to 90 days. The replacement of cement with 30% carbonated waste paste powder slightly decrease the strength of the cement. The silica gel in carbonated hardened cement paste powder quickly reacts with calcium hydroxide and results in the formation of more C-S-H. The presence of calcite in carbonated hardened paste powder leads to the formation of calcium aluminate hemi-carbonate (CAHC) and calcium aluminate mono-carbonate (CAMC) thus to a stabilization of ettringite (AFt) compared with the control cement paste, in which portion of AFt converts to mono-sulphoaluminate. CAHC is less stable than CAMC and transforms to CAMC in about one week after its formation. These chemical actions lead to a lower porosity and a higher compressive strength for cement paste with carbonated hardened paste powder compared with the control cement paste.
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Citations
Cites
Carbonation of CH and C–S–H in composite cement pastes containing high amounts of BFS
Borges, P. H. R., Costa, J. O., Milestone, N. B., Lynsdale, C. J., & Streatfield, R. E. (2010) · Cement and Concrete Research · doi:10.1016/j.cemconres.2009.10.020 · Cited by 555
Chemical changes and phase analysis of OPC pastes carbonated at different CO2 concentrations
Castellote, M., Fernandez, L., Andrade, C., & Alonso, C. (2009) · Materials and Structures · doi:10.1617/s11527-008-9399-1 · Cited by 470
Influence of carbonated recycled concrete aggregate on properties of cement mortar
Zhang, J., Shi, C., Li, Y., Pan, X., Poon, C.-S., & Xie, Z. (2015) · Construction and Building Materials · doi:10.1016/j.conbuildmat.2015.08.087 · Cited by 358
Self-citationWu, B., & Ye, G. (2017) · Construction and Building Materials · doi:10.1016/j.conbuildmat.2017.03.176 · Cited by 214
Siriruang, C., Toochinda, P., Julnipitawong, P., & Tangtermsirikul, S. (2016) · Journal of Environmental Management · doi:10.1016/j.jenvman.2016.01.010 · Cited by 121
Cited by
Tang, Q., Ma, Z., Wu, H., & Wang, W. (2020) · Cement and Concrete Composites · doi:10.1016/j.cemconcomp.2020.103807 · Cited by 549
Liang, C., Pan, B., Ma, Z., He, Z., & Duan, Z. (2020) · Cement and Concrete Composites · doi:10.1016/j.cemconcomp.2019.103446 · Cited by 481
Lu, B., Shi, C., Cao, Z., Guo, M., & Zheng, J. (2019) · Journal of Cleaner Production · doi:10.1016/j.jclepro.2019.05.350 · Cited by 338
Self-citationKinetics of enforced carbonation of cement paste
Zajac, M., Skibsted, J., Durdzinski, P., Bullerjahn, F., Skocek, J., & Ben Haha, M. (2020) · Cement and Concrete Research · doi:10.1016/j.cemconres.2020.106013 · Cited by 292
Mechanisms of carbonation hydration hardening in Portland cements
Zajac, M., Irbe, L., Bullerjahn, F., Hilbig, H., & Ben Haha, M. (2022) · Cement and Concrete Research · doi:10.1016/j.cemconres.2021.106687 · Cited by 262
Metadata
- Authors
- Lu, B., Shi, C., Zhang, J., & Wang, J.
- Venue
- Construction and Building Materials
- Publisher
- Elsevier BV
- Published
- 2018-10
- Volume
- 186
- Pages
- 699-708
- ISSN
- 0950-0618 (ISSN-L)
- OpenAlex
- W2886827397
- Cited by
- 395
- References
- 5
- FWCI
- 12.80
- Type
- journal article
- Language
- en
- Open access
- closed
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- Lu, B., Shi, C., Zhang, J., & Wang, J. (2018). Effects of carbonated hardened cement paste powder on hydration and microstructure of Portland cement. Construction and Building Materials. https://doi.org/10.1016/j.conbuildmat.2018.07.159
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Contains information from the Semantic Scholar Academic Graph Datasets, made available under the ODC Attribution License (ODC-BY 1.0).
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