Curing Techniques and Mechanical Properties of Cementitious Materials

Curing of cementitious materials governs the progression of hydration reactions, the development of microstructure and ultimately the mechanical performance of concrete, mortar and other cement-based composites. Traditional methods, such as water immersion and fog curing, maintain moisture availability to promote calcium silicate hydrate formation, which underpins strength gain and durability. Steam curing accelerates early-age strength through elevated temperature, although excessive heat may induce microcracking, shrinkage and delayed ettringite formation that compromise long-term performance. Emerging approaches, including direct electric and microwave curing, utilise Joule heating or electromagnetic radiation to deliver uniform, rapid thermal profiles that can reduce production cycles for precast elements. Optimisation of curing regimes—through control of temperature ramp, duration, humidity and secondary curing—strikes a balance between early strength requirements, dimensional stability and energy efficiency. The interplay between curing parameters and supplementary cementitious materials, such as fly ash or slag, further influences pore structure refinement, pozzolanic reaction kinetics and resistance to aggressive environments. By tailoring curing techniques, engineers enhance the structural integrity, service life and sustainability of cementitious components in diverse construction contexts.

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Curing Techniques and Mechanical Properties of Cementitious Materials publication trend

The graph below shows the total number of articles in curing techniques and mechanical properties of cementitious materials across all publications each year (not limited to Nature Index journals).

Technical terms

Curing: The process of maintaining optimal moisture and temperature conditions to promote cement hydration and strength development.

Hydration: The chemical reaction between cement and water that produces binding phases such as calcium silicate hydrate.

C-S-H (Calcium Silicate Hydrate): The primary binding phase responsible for strength and durability in cementitious materials.

Pozzolanic reaction: A secondary chemical reaction between supplementary cementitious materials and calcium hydroxide that refines pore structure.

Microstructure: The internal physical and chemical arrangement of phases and pores in hardened cement paste or mortar.

Early-age strength: The compressive or flexural strength attained within the first days of curing, critical for formwork removal and prestressing operations.

Steam curing: A thermal curing method employing high-temperature water vapour to accelerate hydration and strength gain in precast production.

Joule heating: Thermal energy generated by passing electric current directly through conductive elements in cementitious composites.

References

1. The Effect of Microwave Radiation on the Solidification of C-S-H Gels: Its Influence on the Solidified Cement Mixtures. Gels (2023).
2. Review on effect of steam curing on behavior of concrete. Cleaner Materials (2022).
3. Influence of Steam Curing Method on the Performance of Concrete Containing a Large Portion of Mineral Admixtures. Advances in Materials Science and Engineering (2017).
4. A Comparative Study on the Mechanical Properties and Microstructure of Cement-Based Materials by Direct Electric Curing and Steam Curing. Materials (2021).
5. Investigating the Impact of Fly Ash on the Strength and Micro-Structure of Concrete during Steam Curing and Subsequent Stages. Materials (2023).