The characteristic of concrete is that it is easy to dry, especially when it is put for a long time, the water evaporates. When transporting concrete, it needs to use concrete mixer to transport and mix at the same time. Prevent concrete from drying. Why does the mixer still turn on the road?

　　1、為了獲得混凝土配比和質量和減少工地施工場地占用，房屋提高建筑進度，縮短建筑工期，對于高層樓房的建筑，混凝土從原來工地現配進化成了更為先進的混凝土公司生產配送制；

　　1. In order to obtain the concrete proportion and quality, reduce the occupation of the construction site, improve the building progress and shorten the construction period, for the high-rise buildings, the concrete has evolved from the original site to a more advanced professional production and distribution system of the concrete company;

　　2、自上料混凝土攪拌罐車在混凝土公司裝車后，因從裝完車到工地還有一段比較長的運輸距離，為了防止混凝土在運輸過程中結塊，在配制混凝土的配方中加入了一定量的緩凝劑；

　　2. After the concrete mixer truck is loaded in the concrete company, because there is a relatively long transportation distance from the loading to the construction site, in order to prevent the concrete from caking in the transportation process, a certain amount of retarder is added to the formula of concrete preparation;

　　3、如果自上料混凝土攪拌罐車不攪拌，在運輸過程中，混凝土中的石頭就會沉入底層，中間層是砂子，上層是水泥漿，并且運輸到工地后就會出現結塊的現象，因此，在運輸過程中轉動既可防止混凝土結塊，又可防止混凝土分層，讓混凝土混合得更均勻。

　　3. If the concrete mixer does not mix, during the transportation process, the stone in the concrete will sink into the bottom layer, the middle layer is sand, the upper layer is cement slurry, and the phenomenon of caking will appear after the transportation to the construction site. Therefore, the rotation in the transportation process can not only prevent the concrete from caking, but also prevent the concrete from layering, so that the concrete can be mixed more evenly.

　　大家不難發現，經過自上料混凝土攪拌罐車運輸的混凝土，它們的性能基本上保持不變，也沒怎么干結，并且幾乎不會被浪費，這基本上是該攪拌車的功能，在路上還轉動是為了讓混凝土保持其性能。

　　It is not difficult to find that the performance of the concrete transported by the concrete mixer truck is basically the same, not very dry, and almost not wasted, which is basically the function of the mixer truck, and the purpose of turning on the road is to keep the performance of the concrete.