搅拌车与运输的混凝土密度关系紧密
大家都知道搅拌车一般是用来运输混凝土的，从搅拌站到工地或者其他地方，混凝土是用胶凝材料将骨料胶结成整体的工程复合材料的总称。一般而言，混凝土是指以水泥为胶凝材料，砂石为骨料，与水按一定比例混合，与水泥混合而成的水泥混凝土。搅拌车与运输的混凝土密度关系是怎样的呢？
As we all know, the mixer truck is generally used to transport concrete. From the mixing plant to the construction site or other places, concrete is the general name of engineering composite materials that use cementitious materials to cement the aggregate into a whole. Generally speaking, concrete refers to the cement concrete with cement as cementitious material, sand as aggregate, mixed with water in a certain proportion and mixed with cement. What is the relationship between the mixer and the density of concrete transported?
搅拌车一般按平方数量来划分。平方量是指罐的体积，而不是混凝土的重量。搅拌罐中安装的混凝土不同，质量也不同。这是因为不同的混凝土密度不同，混凝土按表观密度可分为三种：重混凝土、普通混凝土和轻质混凝土。
Mixer trucks are generally divided by square quantity. The square quantity refers to the volume of the tank, not the weight of the concrete. The concrete installed in the mixing tank is of different quality. This is because different concrete has different densities. According to the apparent density, concrete can be divided into three types: heavy concrete, ordinary concrete and light concrete.
重混凝土是由表观密度大于2500Kg/m?的特别致密重的骨料制成，如重晶石混凝土、钢屑混凝土等。它们对X射线和伽马射线是不透明的，像这样在输送高密度混凝土，司机要特别注意，因为它的密度高，同样体积的搅拌车在运输重混凝土时总质量会增加很多，车辆的惯性也会增加。
Heavy concrete is composed of concrete with apparent density greater than 2500kg/m? It is made of especially dense and heavy aggregates, such as barite concrete, steel chip concrete, etc. They are opaque to X-rays and gamma rays. When transporting high-density concrete like this, drivers should pay special attention to it. Because of its high density, the total mass of the mixer truck with the same volume will increase a lot when transporting heavy concrete, and the inertia of the vehicle will also increase.
大得多，所以车速不宜过快，刹车也不宜过快，尤其是转弯时，一定要减速慢行，小心驾驶；并且由于其密度大，不易搅拌，对搅拌机的减速机也是一个考验。
It is much larger, so the speed should not be too fast, and the braking should not be too fast. Especially when turning, you must slow down and drive carefully; And because of its high density, it is not easy to mix, which is also a test for the reducer of the mixer.
普通混凝土是我们在建筑中常用的混凝土。其表观密度在1950-2500Kg/m?之间，骨料为沙、石等。这种混凝土常由搅拌车运输。卸料应按规定进行，运输时间不得超过混凝土凝固时间。
Ordinary concrete is commonly used in buildings. Its apparent density is 1950-2500kg/m? The aggregate is sand, stone, etc. This kind of concrete is often transported by mixer truck. Unloading shall be carried out as specified, and the transportation time shall not exceed the concrete setting time.
全自动搅拌车厂家另外提醒，轻质混凝土是表观密度小于1950Kg/m?的混凝土，可分为轻骨料混凝土、多孔混凝土和大孔混凝土。这些混凝土的密度较小，在搅拌罐中运输。整车质量比较轻，驾驶者比较容易驾驶。
The manufacturer of full-automatic mixer also reminds that the apparent density of lightweight concrete is less than 1950kg/m? Concrete can be divided into lightweight aggregate concrete, porous concrete and macroporous concrete. These concretes have a low density and are transported in mixing tanks. The whole vehicle is light and easy to drive.
此外不少人都说搅拌车的搅拌罐越大越容易离稀，罐体设计不合格的确会造离析现象，但是与罐体大小关系不大。主要是罐体内部搅拌叶片的安装设计角度以及做工等不合格造成的。一些小改装厂做的上装，罐体设计不合格，会出现罐体内的叶片搅拌不均匀而造成离析。在购买搅拌车的时候有条件尽量选择知名大厂，一般只要是在正规大厂生产的搅拌罐都没什么问题。
In addition, many people say that the larger the mixing tank of the mixer truck is, the easier it is to dilute. If the tank design is unqualified, segregation will indeed occur, but it has little to do with the size of the tank. It is mainly caused by the unqualified installation design angle and workmanship of the mixing blade inside the tank. Some small refitting plants do the top loading, and the tank body design is unqualified, which will cause segregation due to uneven mixing of the blades in the tank body. When purchasing a mixer, try to choose a well-known large factory if possible. Generally, there is no problem as long as the mixing tank is produced in a regular large factory.
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