Coating method of anti-slide wear-proof coating layer of concrete PC beam and concrete PC beam

Abstract

The invention relates to a coating method of an anti-slide wear-proof coating layer of a concrete PC beam and the concrete PC beam. The coating method comprises the following steps: (S1) preprocessing the concrete PC beam until a to-be-coated surface of the concrete PC beam is dry and neat and has no dirt and oil dirt and the surface roughness meets the preset requirements; (S2) coating the to-be-coated surface of the concrete PC beam with a primer; and (S3) after the primer is dried and solidified, coating the primer with an anti-slide wear-proof paint film, and standing until the anti-slide wear-proof paint film is dried and solidified. According to the preparation method, the to-be-coated surface of the concrete PC beam is preprocessed, so that the adhesive force of the coating to the PC beam is enhanced, and the construction quality is guaranteed; by coating the PC beam with the primer, the anti-slide wear-proof paint film is prevented from losing effect, a good bonding force is created for the surface of the PC beam and the subsequent coating layer, and a firm foundation of the coating layer is formed, so that the protection performance of the whole coating layer is improved; and by coating the primer with the anti-slide wear-proof paint film, the sliding caused due to the permeation of grease or impurities is prevented, and the service life of the coating layer is long.

Description

technical field [0001] The invention relates to an anti-slip and wear-resistant coating and a coating process thereof, in particular to a coating method of an anti-slip and wear-resistant coating for a concrete PC beam and a concrete PC beam. Background technique [0002] The original concrete prefabricated PC beam, the running surface of the concrete PC beam is a rough surface treated by rubbing, which has a high anti-skid value. Concrete has many capillary structures and is very easy to absorb water. The outer surface of concrete PC beams is eroded by many factors such as acid rain, urban exhaust gas emissions, dust, oil, and weak acid substances, which will undoubtedly accelerate the carbonization speed of concrete PC beams. Guided driving will cause obvious friction and wear marks on the guide part of the concrete PC beam. If effective protection is not taken for the wear mark part, its normal service life will be affected. [0003] Chongqing rail transit straddle-type ...

AI Technical Summary

Problems solved by technology

Concrete has many capillary structures and is very easy to absorb water. The outer surface of concrete PC beams is eroded by many factors such as acid rain, urban exhaust gas emissions, dust, oil, and weak acid substances, which will undoubtedly accelerate the carbonization speed of concrete PC beams. Guided driving, so that there are obvious friction and wear marks on the guiding parts of the concrete PC beam. If effective protection is not taken for the parts of the wear marks, its normal service life will be affected

[0003] Chongqing rail transit straddle-type monorail concrete PC beams that have been in operation for many years are guided by light rail trains, causing obvious friction and wear marks on the guiding parts. Long-term friction of train tires makes tire rubber dust fill in the capillary pores of concrete PC beams; wheel track area The parts are completely smooth, the coefficient of frictional resistance is reduced, and there is a serious slippage phenomenon during the running of the train, which brings safety hazards to the running process of the train

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