Do you know why the tank of the concrete mixer turns in motion? Although we can see blenders in many places, many people have different ones. Many people think the reason is very simple. The concrete that just comes out from the mixing plant is the initial material, which is just a simple mixing process after mixing. In order to ensure the homogeneity of the finished concrete, it is necessary to carry out secondary mixing in the mixer tank.

混凝土搅拌机需保证10转/min至30转/min的速度，夏季可在一定程度上降低，只需保证混凝土不发生离析、初凝即可，若搅拌过程过于频繁，混凝土中的水分反而会因过度蒸发而导致出料、易性差，影响混凝土构件浇筑质量，主要体现在蜂窝麻面漏筋等质量上的缺陷。

Concrete mixer should ensure the speed of 10 to 30 R / min, which can be reduced to a certain extent in summer, and only need to ensure that concrete does not segregate and initially set. If the mixing process is too frequent, the moisture in the concrete will cause poor discharge and workability due to excessive evaporation, which will affect the pouring quality of concrete components, mainly reflected in the quality defects of honeycomb and pitted surface and reinforcement leakage.
             

在搅拌机运输途中，二次搅拌属于深加工过程，但并不是简单地旋转，罐体的旋转次数度混凝土均质性非常重要。过慢，混凝土内部粗骨料容易下沉。过快，对驾驶人员的安全产生一定影响，也会增加水分的流失，塌落度也会随之加大，从而影响卸料效果。

During the transportation of the mixer, the secondary mixing belongs to the deep processing process, but it is not simply rotating. The rotation times of the tank body and the homogeneity of concrete are very important. If it is too slow, the coarse aggregate inside the concrete is easy to sink. If it is too fast, it will have a certain impact on the safety of drivers, and it will also increase the water loss, and the slump will also increase, thus affecting the unloading effect.

短暂的堵车情况对混凝土的影响很小，但若堵车时间过长，罐体转动次数应适当加快1圈至2圈，时刻注意罐体转动情况，适当时可加水保持混凝土的和易性，避免出现粘罐、闷罐情况。

The short-term traffic jam has little impact on the concrete, but if the traffic jam time is too long, the rotation times of the tank body should be appropriately accelerated by 1 to 2 turns. Pay attention to the rotation of the tank body at all times. When appropriate, water can be added to maintain the workability of the concrete, so as to avoid sticking and blocking the tank.

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