Cold weather concrete additive

Concrete is a material made up of two core components: ​an aggregate,​ made up of sand and gravel, and ​a paste,​ made from a mixture of clean water and cement – a fine powder made from a combination of finely ground and heated stone, minerals, ash and other products.

Concrete temperature limit as per is code

When the paste and aggregate are blended, it creates a malleable, semi-liquid material that can be poured and shaped, but when left alone for some time, it hardens into a heavy, hardy, rock-like mass.

Concrete gains its strength through a process known as ​hydration,​ which is commonly referred to as "curing." During this process, the compounds in the cement react with water, crystallizing and chemically binding together individual particles of cement, resulting in a solid slab.

The initial hardening process takes place over the first few days after the concrete is poured, but the curing process continues in some form for years after that.

This is why concrete is said to grow stronger over time. However, because the curing process involves water, high and low temperature

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