Cold Weather Concreting Techniques and Material Properties

Cold weather concreting encompasses a range of practices aimed at ensuring that fresh cementitious mixtures achieve sufficient strength and durability when ambient temperatures fall below critical thresholds. At low temperatures, hydration reactions slow markedly, increasing the risk of frost damage, delayed setting and reduced long-term performance. Techniques to mitigate these effects include the use of chemical admixtures that depress the freezing point and accelerate early hydration, thermal control measures such as insulated formwork and external heating, and preparatory measures like brief precuring at ambient temperature. Material strategies extend to optimising binder composition through incorporation of calcium silicate hydrate (C–S–H) seeds, controlled addition of nitrate or nitrite accelerators and the selection of alternative binders such as alkali-activated slag. Monitoring of degree of hydration, temperature profiles and freeze–thaw resistance guides the design of mixes and on-site procedures. Advances in modelling and sensor-based control further enable real-time management of curing regimes. Together these developments widen the construction window in cold climates, reduce energy consumption and enhance the sustainability and resilience of concrete infrastructure globally.

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Cold Weather Concreting Techniques and Material Properties publication trend

The graph below shows the total number of articles in cold weather concreting techniques and material properties across all publications each year (not limited to Nature Index journals).

Technical terms

C–S–H (calcium silicate hydrate): The primary nanostructured binding phase in hardened cement responsible for strength development.

Antifreeze admixture: A chemical additive that lowers the freezing point of mixing water and accelerates cement hydration at low temperatures.

Freeze–thaw cycles: Repeated processes of freezing and thawing that can induce internal stress and damage in hardened concrete.

Precuring: A brief initial curing period at ambient or elevated temperature before exposing freshly cast concrete to subzero conditions.

Thermal control measures: Strategies such as insulation, heated formwork or internal heating to maintain adequate curing temperatures during cold weather concreting.

References

1. Low-temperature (−10 °C) curing of Portland cement paste – Synergetic effects of chloride-free antifreeze admixture, C–S–H seeds, and room-temperature pre-curing. Cement and Concrete Composites (2022).
2. An Overview of Smart Materials and Technologies for Concrete Construction in Cold Weather. Eng (2023).
3. Temperature Field of Concrete Cured in Winter Conditions Using Thermal Control Measures. Advances in Materials Science and Engineering (2022).
4. Enhancing the mechanical and durability properties of subzero-cured one-part alkali-activated blast furnace slag mortar by using submicron metallurgical residue as an additive. Cement and Concrete Composites (2021).