CS204364B1 - Asphalt composition for insulating purposes - Google Patents

Description

The invention relates to asphalt insulating materials. Nowadays, asphalt-based, a wide range of products is used in waterproofing technology - from asphalt primers to granular insulated prefabricates.

The present invention is based on synthetic rubber modified asphalt, optionally oil-softened and diluted with a solvent, which is treated with a stabilizing and reflective additive of metal powder, e.g. % aluminum powder, in an amount of 0.1 to 50 wt. %.

The production of an asphalt composition for insulation purposes is based on the homogenization of the modified asphalt, preferably in a solvent form, with a metal, e.g. aluminum powder.

In solvent form, the asphalt composition for cold insulation purposes can be used cold as a penetrated, auxiliary, revitalizing, sealing, reflective, protective and damping coating, for the production of insulating and protective coatings, as a binder for the production of honest, thermal insulation and other mixtures and the like.

After the solvent has been distilled off, a hot workable asphalt composition is obtained and suitable for forming insulating, protective and buffering coatings and coatings, for the production of asphalt insulating and sealing prefabricates, for joint sealing, joints and insulation of details and as binder for asphalt mixtures. The mass is characterized by a high softening point, a low breaking point, an elongation at low temperatures with other advantageous properties.

Asphalt compositions for cold or hot workable insulation can be treated with a filler, preferably fibrous.

Example

4.0 g of synthetic butadiene styrene rubber was dissolved in 100.0 g of benzene (xylene, tri-chloroethylene, etc.). 4.0 g of plasticizer (motor oil M-6), 1.0 g of stabilizer (aluminum powder) and 92.0 g of asphalt (AOSI - 85/25) are added to your rubber flask. At the boiling point of the solvent, the mixture was refluxed for 2 hours.

An asphalt composition for insulation purposes with a viscosity of about 0.4 Pa is obtained. with.

After evaporation, the asphalt residue has the following properties:

features asf. insulating material purposes insulating asphalt AOSI-85/25 KG soft point, in ° C 99 81 to 90 breaking point of Praas, in ° C -25 max. -10 ductility at 25 ° C, in cm 12 min. 2 ductility at 0 ° C, in cm 8 - penetration at 25 ° C, in ° pen. 39 20 to 35 penetration at 0 ° C, in ° pen. 10 - heating loss at 163 ° C / 5 hr. in % 1.2 max. 1.0

A comparison of the properties of asphalt for insulation purposes and of AOSI - 85/25 asphalt shows that it is an advanced product at a higher quality level.

Asphalt material for insulation purposes can also be used for insulating steel bridges.

The subject insulating materials can be processed by coating, spraying, squeegee, watering, coating of the mixture; insulating and sealing prefabricates made of them by gluing, melting, assembly of insulating prefabricates and the like.

Claims (2)

2 Comparing the properties of asphalt] mass for insulation purposes and insulating asphalt AOSI - 85/25, it is an advanced product at a higher quality level. Asphalt material can also be used for insulation of steel bridges for insulation purposes. The insulating materials in question can be processed by coating technology, spraying, scraping, watering, coating the mixture; insulating and sealing prefabricates made therefrom by bonding, fusing, assembly of insulating prefabricates, and the like. SUBJECT OF THE INVENTION An asphalt composition for insulating purposes comprising asphalt, synthetic rubber, optionally a plasticizer and organic solvent, characterized in that it contains a metal, preferably aluminum powder, in an amount of 0.1 to 50 wt. % per total mixture. 2. An asphalt mass for insulating purposes of the sub-base 1, characterized in that it comprises cold or hot processing materials containing 5 to 70 wt. % filler, preferably fibrous.