期刊
CONSTRUCTION AND BUILDING MATERIALS
卷 299, 期 -, 页码 -出版社
ELSEVIER SCI LTD
DOI: 10.1016/j.conbuildmat.2021.124244
关键词
Internal curing; Porous aggregates; High performance concrete; HPC; Waste materials; Supplementary cementitious material; SCM
资金
- Ministry of Economy, Industry and Competitiveness [BIA2017-85657-R]
- Universidade da Coruna
- Universidade da Coruna/CISUG
This review summarizes research on the performance of WASPORs as water reservoirs for internal curing of concrete, including material selection, impact on concrete properties, and recommendations. The moderate water absorption and quick water desorption capabilities are identified as key factors defining internal curing efficiency.
This review collates findings from more than 100 scientific publications regarding the performance of several waste-based porous materials (WASPORs) as water reservoirs for the internal curing of concrete. Results obtained by using recycled concrete aggregates, crushed ceramics, coal bottom ash, artificial waste-based aggregates, different powder materials and porous fibres were included. The influence of these WASPORs on the consistence, hydration, setting, microstructure, density, strength, modulus of elasticity, autogenous deformation, drying shrinkage and durability properties of concrete were analysed. General recommendations for suitable characterization of WASPOR and mix design are also given. The differences in water absorption capacity between the different porous materials studied have been used for explaining several of the observed phenomena. A moderate water absorption capacity together with a quick water desorption capacity were found to be among the key factors that define the internal curing efficiency of the proposed WASPORs.
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