Introduction to anti crack sticker
Self adhesive anti crack sticker ( abbreviation YN Anti crack sticker ) The reinforced fiber materials with good folding performance, tensile strength and corrosion resistance are selected as the base material, and the viscoelastic materials with different processing ratios are covered up and down.
When cement When the concrete cracks and deforms, because the tensile strength of the base material of the "anti crack sticker" is greater than the bonding strength, the originally concentrated stress is dispersed through the cover layer of the anti crack sticker, avoiding and reducing asphalt The possibility of concrete cracking. When the adjacent cement concrete plate is repeatedly cut up and down within a certain range, the reinforcing fiber used has the folding and extensibility of human * * *. Therefore, it is not easy to break the "anti crack sticker". Adhering to the "anti crack sticker" has a good self-adhesive blocking property, which blocks the surface water cement concrete plate expansion joint ( Crack ) Internal, ensure foundation stability .
Main points of the product
one Crack prevention effect of * * * 2mm Thickness of "anti crack sticker", with tensile strength ≥ 600N/50mm , product elongation ≥ thirty 。 When two cement concrete slabs are horizontally displaced 1mm( Base seam width 4mm) The anti crack sticker can play a very good and dispersing role. Meridian opening and closing ten thousand The "anti crack sticker" is not damaged.
two It has * * * low temperature flexibility and good shear performance. Because the "anti crack sticker" base material is soft and elastic -20 ℃, along ф 20mm Of Glass Great. curved one thousand and eight hundred The material does not break. When the "anti crack sticker" pasted on two cement concrete plates moves up and down 0.5mm( Base seam width 4mm) , after repeated up and down displacement ten thousand Second, because the "anti crack sticker" has good flexibility and elongation , "Anti crack sticker" is not damaged ( The allowable upper and lower displacement values in conventional design are generally not greater than 0.06mm) 。
three Good adhesive performance "anti crack paste" has good adhesive force with cement concrete base course and asphalt concrete surface course, and its adhesive strength is greater than 4N/mm After being rolled by hot asphalt concrete, the bonding performance is greatly improved, so it is not easy to slip and damage when horizontally stressed. stay fifty The shear strength of "anti crack sticker" can reach 0.15Map above.
four Good perforation "anti crack sticker" 500g Heavy hammer, from 500mm After impact at 0.3MPa Water pressure of 0.5h The "anti crack sticker" is impervious to water.
five Good waterproof and airtightness because the self-adhesive covering layer on the lower surface of the "anti crack sticker" is greater than 1mm After being pressed by the hot asphalt concrete, it is completely combined with the cement concrete, greatly improving the waterproof tightness, preventing the surface water from seeping into the cracks of the cement concrete plate, and improving the stability of the foundation. After being subjected to the horizontal thrust of the driving vehicle, the covering layer has good self-adhesive and flexibility, which makes it waterproof and airtight.
six The construction method of "anti crack sticker" is self-adhesive cold construction. Just remove the release paper ( membrane ) Can be directly pasted on the treated cement concrete base course. The construction is convenient and fast. At the same time, it does not pollute the environment and is an environment-friendly product.
