The rheological properties of concrete, as a core indicator of the workability of fresh concrete, directly determine the construction pouring efficiency, forming quality, and subsequent mechanical performance development.
Its stability is influenced by multiple factors such as raw material characteristics, mix design, and environmental conditions.
In engineering practice, the temperature, humidity, and diurnal temperature differences caused by seasonal changes are key environmental factors leading to fluctuations in the rheological properties of concrete – high temperatures in summer accelerate cement hydration reactions, which can easily cause rapid loss of slump; The low temperature in winter may suppress the adsorption efficiency of additives, which may induce the risk of slump rebound and segregation; The significant temperature difference between day and night in autumn leads to a dynamic fluctuation of “early strength and late weakness” in concrete; The temperature and humidity in spring are moderate, but there are still issues of rheological instability caused by short-term climate fluctuations.
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