SU1664994A1 - Method for making waterproof covering - Google Patents

Abstract

The invention relates to a method for waterproofing a coating device and can be used when laying new and repairing existing coatings. The purpose of the invention is to improve the quality of the coating and reduce labor costs. Before laying the material, the base surface is cleaned. The roll is rolled out, an example is squeezed and cut off. In the course of sticking, the material roll is gradually unrolled, the anti-adhesive gasket is removed from the adhesive mastic and the roll is rolled. Due to the chosen thickness of the sticky layer of 1.5-2.0 mm and its plastic-elastic properties, not only is it possible to copy the unevenness of the base, but also the depth of penetration of the projections of the concrete surface into the material is limited. When the material is detached from the surface, the material is exfoliated over the adhesive mastic, and the surface of the concrete remains covered with waterproofing mastic. The material is laid in an overlap of 12 to 15 mm on each side. Over a large area, the material is rolled by hand rollers that load up to about 10 kg / cm ² .

Description

The invention relates to a method for waterproofing a coating device and can be used when laying new and repairing existing coatings in land and underground construction.

The aim of the invention is to improve the quality of the coating and reduce labor costs.

Example. Before laying the material, the base surface is cleaned of debris and dirt, dried, and solid particles of sand, rubble, and gravel, which can cause material damage, are removed from it.

Sinks, cracks and irregularities are sealed with cement mortar and dedusted the base.

The surface of the base can be treated with a bituminous primer.

A roll of waterproofing material is rolled out on a base and kept in a rolled state for at least 8 hours, then wound up into a roll with a release liner up.

In order for the material sheets to be glued in compliance with the required width of their overlap, the roll is rolled out, for example at the place of labeling and cut off.

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The cut canvas is again rolled up and laid on the appropriate strip of the prepared area.

In the course of sticking, the roll of material is gradually unrolled, an anti-adhesive liner is removed from the adhesive mastic, and the roll is rolled out, pressing the adhesive mastic tightly and rolling the sheet onto the base.

. Due to the chosen thickness of the sticky layer 1.5-2.0 mm and its plasto-elastic properties, it is not only possible to copy the unevenness of the base, but the wetting of the concrete surface by the sticky layer, i.e. hydrophobization of the concrete surface, but also limits the depth of penetration of the protrusions of the concrete surface into the material due to the elastic component of the adhesive layer.

Therefore, when the material is separated from the insulated surface of the concrete, the material is stratified by adhesive mastic, and the surface of the concrete remains covered with waterproofing mastic.

To create a waterproof seam at the junction of the rolls (panels) of the material, they are laid with an overlap of 12-15 mm on each side. Good wetting of the surface of the polymer-bitumen film with a sticky layer and low water absorption of the adhesive layer and polymer bitumen film ensure the watertightness of the seam.

When joints are opened in a concrete base, the structural integrity of the waterproofing coating is maintained both by the size of the overlap of the material panels and by the plasto-elastic properties of the adhesive layer.

To combine the material with the concrete surface and the canvases among themselves, it is enough to press it with a trowel, but when laying the material over a large area

It is advisable to use hand rollers that load in the order of 10 kg / cm2.

When the thickness of the adhesive mastic layer is less than 1.5 mm, the waterproofing coating does not withstand the test

watertightness is likely because irregularities in the surface of the concrete pierce mastic and film.

The increase in the thickness of the mastic layer is more than 2.0 mm and the overlap is more than

150 mm does not significantly improve the properties of the waterproofing coating, but increases the consumption of material, its cost, and labor intensity during manufacture.

Reducing the overlap of the canvas makes the coating less reliable when exposed to water.

Claims (1)

The invention The method of waterproofing coating, which includes sticking the coiled material with bitumen-polymer mastic, previously deposited on a bituminous base, followed by rolling to an insulated base, is characterized in that not less than 0.5 mm thick, the bitumen-polymer resin is applied with a thickness of 1.5-2.0 mm onto the base, while laying the material onto the base is overlapped with a width of 120-150 mm with a force of ima 1-10 kg / cm2.