,保证不离析,因为在如今大量生产大坍度的混凝土的形势下,如果滚筒不搅拌的情况下,嘿嘿,后果是你的搅拌车要花两万左右更换减速机的传动轴,因为在运输途中一直颠簸的情况下,砂石会沉淀在滚筒上,水会浮在上部,这就是所谓的离析,然后你到工地上想放料,突然发现滚筒转不动了,只能转1/4圈,然后整个车往一边偏像要翻掉一样,因为重量都集中在一边,然后不是翻车就是传动轴搅断。(PS:搅拌车滚筒旋转是要多耗油的,所以有些车就会偷偷不转,老司机会隔10几分钟转几下,新手不知道就一直不转,然后就悲剧了,当然我们公司用的是富士康的监控系统,滚筒不转是会有监控的)
First, ensure that there is no segregation, because in today's situation of mass production of large slump concrete, if the drum does not mix, the consequence is that your mixer will spend about 20000 to replace the transmission shaft of the reducer, because in the case of bumpy transportation, the sand and gravel will settle on the drum, and the water will float on the top, which is called segregation, Then you go to the construction site and want to put the material. Suddenly you find that the drum can't rotate, it can only rotate 1 / 4 circle, and then the whole car turns to one side as if it's going to turn over, because the weight is concentrated on one side, and then it either overturns or the transmission shaft is broken( PS: the rotation of mixer drum consumes more fuel, so some cars will not rotate secretly. The old company will rotate several times every 10 minutes, and the novice will not rotate until they know it. Then it's a tragedy. Of course, our company uses Foxconn's monitoring system, and there will be monitoring if the drum doesn't rotate.)
第二,是保坍,因为根据实验,混凝土在运输途中不搅拌和搅拌大约坍度每小时会相差20mm至40mm左右。做混凝土更重要的几方面有一项就是坍度,直接影响施工性和工程质量。
The second is slump preservation, because according to the experiment, the slump difference between concrete without mixing and mixing during transportation is about 20 mm to 40 mm per hour. One of the most important aspects of concrete is slump, which directly affects the constructability and engineering quality.
第三,有部分搅拌功能,但是这个搅拌功能必须在滚筒快速旋转的情况下会有一定效果,但是路上每分钟几转的速度下搅拌效果不是太明显,毕竟滚筒内的叶片是螺旋形的并不是搅拌刀。
Third, there is part of the mixing function, but this mixing function must have a certain effect in the case of rapid rotation of the drum, but the mixing effect is not obvious at the speed of several revolutions per minute on the road. After all, the blades in the drum are spiral, not the mixing knife.
还是为了防止凝固。一般而言,初凝时间在45分钟左右,即凝固了影响质量,所以在运输过程中不停地转动防止这个事情,当然,如果距离很长,可能还要加一些缓凝剂,进一步防止凝固。
Or to prevent solidification. Generally speaking, the initial setting time is about 45 minutes, that is to say, the quality is affected by solidification. Therefore, it is necessary to rotate continuously during transportation to prevent this. Of course, if the distance is very long, some retarders may be added to further prevent solidification.
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