中科聚峰厂家浅谈温度对混凝土搅拌机性能的影响？
温度会对混凝土搅拌机的性能产生什么影响？中科聚峰厂家的技术人员指出，环境温度低、水泥水化反应慢影响了混凝土搅拌机的强度增长。混凝土搅拌机制造商的试验表明，当温度降低1℃时，水泥的水化降低5%~7%左右。在1℃~0℃范围内，水泥水化活性急剧下降，水化缓慢通常，当温度低于0℃的某个范围时，自由水将开始冻结。当温度低到一定程度时，自由水将几乎完全冻结成冰，导致水泥完全停止水化和硬化。
What is the effect of temperature on the performance of concrete mixer? Technical personnel of Zhongke Jufeng factory pointed out that low ambient temperature and slow hydration reaction of cement affected the strength growth of concrete mixer. The concrete mixer manufacturer's test shows that when the temperature is reduced by 1 ℃, the hydration of cement is reduced by about 5% ~ 7%. When the temperature is lower than 0 ℃, the free water will start to freeze. When the temperature is low to a certain extent, the free water will almost completely freeze into ice, resulting in the complete stop of hydration and hardening of cement.
当水转化为固体冰时，其体积增加约9%，导致混凝土内部应力。温度导致骨料和水泥颗粒相对位移，内部水分迁移到混凝土搅拌机的负温度表面，在混凝土中形成冰骨料，造成局部结构损坏混凝土搅拌机制造商指出，新浇混凝土过早冻结将大大降低极限强度，强度损失率可能达到设计标志的50%，甚造成整体结构损坏。然而，当混凝土达到临界强度后冻结时，混凝土的极限强度损失很小，不会发生整体结构损伤。降低冰点的范围与防冻剂的类型和剂量或溶液的浓度有关。防冻剂的使用效果在很大程度上取决于溶液的浓度和混凝土在硬化过程中经历的负温度值。
When water is converted into solid ice, its volume increases by about 9%, resulting in internal stress of concrete. The temperature causes the relative displacement of aggregate and cement particles, and the internal moisture migrates to the negative temperature surface of the concrete mixer, forming ice aggregate in the concrete, causing local structural damage. The concrete mixer manufacturer points out that premature freezing of fresh concrete will greatly reduce the ultimate strength, and the strength loss rate may reach 50% of the design mark, and even cause damage to the overall structure. However, when the concrete reaches the critical strength and freezes, the ultimate strength loss of concrete is very small, and the overall structure damage will not occur. The range of freezing point reduction depends on the type and dosage of antifreeze or the concentration of solution. The effect of antifreeze depends largely on the concentration of the solution and the negative temperature experienced by the concrete during the hardening process.
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The above is about the influence of temperature on the performance of concrete mixer, I hope it can help you. If you want to know more, please click Zhongke Jufeng factory http://www.jfjiaobanche.com Official website.
