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当前位置:首页 > 搅拌车资讯 > 新闻资讯 > 全自动搅拌车出现混凝土离析现象的原因是什么?
全自动搅拌车出现混凝土离析现象的原因是什么?
来源:http://www.cnzkjf.cn发布日期:2021-08-11   浏览量:
 
混凝土自动搅拌车使用中麻烦的除了闷罐之外,离析问题也非常令人头痛。搅拌罐越大越容易离稀?离析的原因到底是什么?不少网友也讨论过,小编也询问了一些混凝土搅拌车厂家相关的人员,发生离析的主要原因还是搅拌站的技术问题,但搅拌车使用不当也会造成混凝土离析现象。
In addition to the stuffy tank, the segregation problem is also a headache in the use of automatic concrete mixer. The larger the mixing tank, the easier it is to dilute? What is the cause of segregation? Many netizens have also discussed it. Xiaobian also asked some relevant personnel of concrete mixer manufacturers. The main reason for segregation is the technical problems of the mixing plant, but improper use of the mixer will also cause concrete segregation.
什么是混凝土离析现象
What is concrete segregation
简单地说就是混凝土中的主要材料灰浆与砂石出现分离。来自百度百科较的解释是:混凝土拌合物组成材料之间的粘聚力不足以抵抗粗集料下沉,混凝土拌合物成分相互分离,造成内部组成和结构不均匀的现象。
In short, the main material in concrete is the separation of mortar and sand. The more professional explanation from Baidu Encyclopedia is that the cohesion between the constituent materials of the concrete mixture is insufficient to resist the sinking of coarse aggregate, and the components of the concrete mixture are separated from each other, resulting in uneven internal composition and structure.
混凝土自动搅拌车
混凝土离析主要还是搅拌站调配混凝土的技术问题,不同级别的混凝土配比都有严格的规范,水、水泥、砂石料、外加剂的使用不当都有可能造成混凝土离析。主要由以下及几种情况:
Concrete segregation is mainly the technical problem of concrete mixing in the mixing plant. There are strict specifications for the proportion of different levels of concrete. Improper use of water, cement, sand and gravel and admixtures may cause concrete segregation. It mainly includes the following situations:
1、水料配比不当。水加多了,水泥用量少等都会造成离析。
1. Improper water material ratio. More water and less cement will cause segregation.
2、沙子质量不好。沙子中石头多,含水过高也都会造成离析。
2. The sand is of poor quality. Too many stones in sand and too high water content will also cause segregation.
3、碎石级配不好。碎石粒径增 大、级配变差、单一级配都容易造成混凝土的离析现象。
3. Gravel grading is not good. The increase of gravel particle size, poor gradation and single gradation are easy to cause the segregation of concrete.
4、外加剂加过量。缓凝剂等外加剂过量,或者外加剂和水泥的适应性不好也会造成混凝土离析。
4. Excessive addition of admixtures. Excessive admixtures such as retarder or poor adaptability of admixtures to cement will also cause concrete segregation.
虽然混凝土离析的主要原因是搅拌站的技术问题,但是在搅拌车运输和使用中的不当也可能会造成混凝土离析,特别是新手更不能忽视。
Although the main cause of concrete segregation is the technical problems of the mixing plant, improper transportation and use of the mixing truck may also cause concrete segregation, especially for novices.
1、水量多了造成的离析。主要也是新手特别容易犯的错误,没有严格按照搅拌车使用流程来,在上一趟洗车时搅拌罐里的水没有放,或者没有放完就直接进料。
1. Segregation caused by too much water. It's also a mistake that novices are particularly prone to make. They didn't strictly follow the use process of the mixer truck. During the last car wash, the water in the mixing tank was not discharged, or they directly fed the material before it was discharged.
2、搅拌罐停转造成离析。搅拌罐在运输途中千万不能停,没有搅拌混凝土会出现沙、石、水泥互相脱离,从而离析变质。
2. Segregation caused by shutdown of mixing tank. The mixing tank must not be stopped during transportation. Without mixing, sand, stone and cement will separate from each other, resulting in segregation and deterioration.
3、搅拌罐转速过快离析。混凝土在运输过程中如果驾驶员使搅拌罐转速太快,在离心力的作用下会造成较重的碎石子下层,造成混凝土离析。
3. The rotating speed of the mixing tank is too fast to separate. If the driver makes the mixing tank rotate too fast during concrete transportation, the lower layer of heavy gravel will be caused under the action of centrifugal force, resulting in concrete segregation.


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