Winter concrete faces multiple environmental challenges such as low temperature, slow hydration, and high risk of frost heave.
As the source link of concrete quality control, mix design directly determines the workability, strength development, and long-term durability of concrete in low-temperature environments.
Different from the normal temperature mix proportion, the winter mix proportion needs to be systematically optimized based on current specifications such as GB50164-2011 “Quality Control Standards for Concrete”, GB50666-2011 “Construction Code for Concrete Structures”, JGJ55-2011 “Design Specification for Ordinary Concrete Mix Proportion”, etc.
, in order to address the inhibitory effect of low temperature on hydration reaction, frost heave damage mechanism, and workability characteristics.
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