Epoxy floor paint construction on the floor when processing method of expansion joints

Epoxy floor paint when construction of expansion joint processing method

as we all know, the effect of epoxy floor paint after the completion of the construction is the overall seamless. Therefore, when construction epoxy floor paint, need to deal with some of the expansion joint concrete ground.

no matter how good quality of construction materials epoxy floor coating, after a year, through spring, summer, autumn and winter cold heat transformation, concrete surface will appear the phenomenon of cracking, and adhere to the epoxy coating on the cement floor will craze. So, will handle expansion joints, it is necessary. In order to avoid to produce quality issue in the future.

because often adorned the workshop floor of large area, our company has accumulated a lot of construction experience, to how to deal with expansion joint, so we also slowly accumulated some experience. Now we will send you an article on welfare, my company many years of experience to share with you, for your reference.

in epoxy floor paint construction expansion joints treatment scheme: a:

solution. Filled with epoxy resin mortar material expansion joint, then according to the original plan to continue the construction of the our design to clients epoxy floor paint. But this way cannot guarantee expansion joints or enrichment of floor coating, the phenomenon of the crack or the shell. Because of insufficient material elastic epoxy resin mortar, unable to resist stress, concrete shrinkage cracking yes finally still can't avoid the ground crack.

2: after the completion of the epoxy floor paint, with cutting machine in the original expansion joints cut out of the 2 - position 5 mm of expansion joints and internal cleaning to clean, then use elastic material ( Such as polyurethane elastic rubber) Will fill up, expansion joints in the process, attention should be paid to avoid cracks with rubber. Final coating epoxy resin coating and paint. Elastic rubber filling needs to have a certain depth, otherwise easy to appear not firm adhesion and elastic rubber and concrete from the phenomenon. The second approach compared to the first, due to the elastic rubber dispersed shrinkage of concrete stress of the formation, the possibility of telescopic sew coating cracking is greatly reduced, the ground overall color is consistent, but due to the elastic rubber coating for rigid still, when the shrinkage of concrete is relatively severe, elastic rubber floor coating ( In the coating and paint) Crack is likely craze, but not very big.

solution 3: epoxy floor paint when construction, the expansion joints as far as possible first, even if the cover, also should record the location, and then in the floor coating has been completed, the expansion joint cutting modification and tidy, ensure the width in more than 5 mm, it is best to modify into on wide below narrow trapezoidal shape, and then clear out the dust and debris within the joint, and stick on both sides of the seam sticky tape, using polyurethane elastic rubber filling gap until straight, in the state of elastic glue dry tear tape. The third method in high cleanliness and aesthetic requirements often used electronics factory, pharmaceutical factory, avoid expansion joint basic floor coating cracking phenomena, and can use the floor more beautiful. The disadvantage of this way, because of the color of the polyurethane elastomer is less, not easy to achieve consistent with the color of the entire floor coating.

plan 4: local ground expansion joint, also often use the shop is stuck glass fiber cloth to improve the method of crack resistance, the construction way is: first, the expansion joints with epoxy mortar materials filling level off, and then coated with bottom coating material, and then paste the width of about 10 mm 1 - glass fiber cloth 2, then roll in the coating materials, surface coating, etc. This method not only can ensure the ground overall color is consistent, also can resist cracking caused by shrinkage of concrete, but if the design of the floor coating thickness too thin when not easy operation, easy to appear the phenomenon of the ground is higher than other area to the patch. So at least 2 mm above the epoxy floor will only use this solution.