Under the requirements of engineering quality and low-carbon sustainable development,steam-free concrete technology has emerged.First,this paper introduces the principles and research status of steam-free curing technologies.The early-strength steam-free rearing promotes Ca(OH)2 production with an early-strength component,while the CO2 mineralization technology promotes C3S and C2S reactions in cement clinker.Besides,microwave curing and solar curing technologies achieve steam-free concrete curing with low-carbon and high-efficiency warming.Comparison of the research results and engineering applications of the above technologies found that the early strength of steam-free technology is mature and widely used,CO2 mineralization is currently the focus of research and development.Although microwave and solar energy curing have equipment and regional limitations,they both have certain application prospects due to their good low-carbon benefits.Finally,the problems of steam-free curing technologies in special environments,solid waste/gas synergy,and technical reliability were analyzed,and the development trend of curing technologies was predicted.We expecting to provide reference for the sustainable development of concrete from the perspective of curing process.
维普
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