Internal curing – A suitable method for improving the performance of heat-cured concrete
| Autor: | Shuai Nie, Junneng Ye, Fazhou Wang, Yunpeng Liu, Pan Yuan, Shuguang Hu, Yaohong Zhu |
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| Rok vydání: | 2016 |
| Předmět: |
Materials science
0211 other engineering and technologies 020101 civil engineering 02 engineering and technology Building and Construction Penetration (firestop) Microstructure Homogeneous distribution Durability 0201 civil engineering Compressive strength 021105 building & construction General Materials Science Mortar Composite material Porosity Curing (chemistry) Civil and Structural Engineering |
| Zdroj: | Construction and Building Materials. 122:294-301 |
| ISSN: | 0950-0618 |
| Popis: | Heat curing decreases the maximum achievable degree of hydration, long-term rate of increase of compressive strength, anti-permeability, and durability of concrete as it ages. In this study, we explored the suitability of internal curing for solving these problems and improving the performance of heat-cured concrete. Internal curing significantly improved the rate of increase in the later-stage strength, degree of hydration, and penetration resistance of heat-cured concrete; this was especially true when subsequent standard curing was also performed. It also resulted in a better interfacial transition zone with a more homogeneous distribution as well as a microstructure with a lower porosity around the internal curing material (lightweight fine aggregate) in the case of the heat-cured mortar. The characteristics of the internal curing material used to improve the performance of heat-cured concrete should be consistent with the heat-curing regime and match those of the cement paste. |
| Databáze: | OpenAIRE |
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