Powdery rough surface agent for concrete and preparation method thereof

Abstract

The invention belongs to the field of concrete, and particularly discloses a powdery rough surface agent for concrete and a preparation method of the powdery rough surface agent, which have the advantages of low packaging cost, convenience in transportation, ready-to-use preparation, long storage period and the like compared with a slurry powdery rough surface agent in the prior art. When the powdery rough surface agent for the concrete is in use, only water needs to be added and stirred into paste, after concrete pouring is completed, the powdery rough surface agent for the concrete is brushed or sprayed on the surface of the concrete, after the concrete is finally set for 24 to 72 hours, the surface of the concrete is washed with normal-pressure water, the slurry on the surface of the concrete can be washed away by 2.0-5.0 mm very easily, the effect that the aggregate is fully exposed on the surface of the concrete is achieved, the stability of the surface of the concrete is not disturbed or damaged, the internal structure of the concrete is not affected, and a good bonding interface is provided for lower-layer construction and surface decoration of the concrete.

Description

technical field [0001] The invention belongs to the field of concrete, in particular to a powdery matting agent for concrete and a preparation method thereof. Background technique [0002] According to the requirements of the regulations, the construction joints of each layer of concrete or the interface that needs to be decorated must be roughened. The common roughening is done by a high-pressure punching machine. Due to the large surface of the roller compacted concrete construction warehouse, the roughening takes a long time. Also due to factors such as climate and temperature, it is not easy to grasp the time to start flushing. Often the depth of flushing is 2-3cm at the beginning of flushing. Before the end of flushing, it is difficult to flush due to the final setting of concrete Poor disadvantages, the power consumption of the flushing machine itself is large and the water pressure is very high, which is dangerous. [0003] Concrete side facades are mostly roughened ...

AI Technical Summary

Problems solved by technology

[0002] According to the requirements of the regulations, the construction joints of each layer of concrete or the interface that needs to be decorated must be roughened. The common roughening is done by a high-pressure punching machine. Due to the large surface of the roller compacted concrete construction warehouse, the roughening takes a long time. Also due to factors such as climate and temperature, it is not easy to grasp the time to start flushing. Often the depth of flushing is 2-3cm at the beginning of flushing. Before the end of flushing, it is difficult to flush due to the final setting of concrete Poor disadvantages, the power consumption of the flushing machine itself is large and the water pressure is high, which is dangerous

[0003] Concrete side facades are mostly roughened by artificial steel brazing or using a pneumatic pick for roughening. The speed of manual roughening is very slow, and one worker can roughen about 5m a day. 2 Left and right, if you use a pneumatic pick to roughen the hair, the speed is faster, but the dust generated is relatively large, which does not meet the environmental protection requirements and will cause certain harm to human health

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