UA15587U - ôDONIZOLö , A PUTTY BASED ON BITUMEN COMPOSITION - Google Patents

Abstract

A putty based on bitumen composition contains base product in the composition of petroleum bitumen, rubber crumb, modifying additive and coal solvent as dissolvent.

Description

Description of the invention

The useful model refers to the production of such hydrocarbon binding materials as 2 improved bitumens (modified, composite compositions) and obtained on their basis with the use of solvents of various bituminous mastics, paints and varnishes, which are widely used in many sectors of the national economy: for construction road surfaces and bases, chaff of industrial buildings, soil stabilization, protection of metal and concrete from corrosion, production of roofing hydro-, heat- and vapor-insulating coatings, metals and products. 70 Numerous information sources on this problem are known (for the 40-50 summer period), crucial tasks of improving the consumer properties of these materials in terms of increasing their deformability and temperature resistance (frost resistance), improving resistance to aging and cracking, increasing adhesive properties, etc. .

Waterproofing materials (anti-filtration, anti-corrosion, sealing) are used to protect construction structures, buildings and structures from the harmful effects of water and chemically aggressive liquids - acids, alkalis, salts.

Mastic roofing materials include bituminous and tar roofing mastics modified with polymers, in particular, which are used as independent materials for the installation of so-called seamless roofs.

Reinforcing elements, for example, fiberglass, etc., are introduced into mastic coatings to increase crack resistance. materials Compared to roll roofing materials based on bitumen (ruberoid, rubemax, etc.), mastic coatings are less time-consuming to install. It is cheaper. An obligatory component for the preparation of mastics is usually a solvent (solvent), which ensures (when it evaporates) the formation of a protective film.

Different elastoplasts are used as polymer modifiers, such as rubbers, thermoplastics, rubber crumb, polymer wax, petroleum resins, etc.

Well-known standard brands of bitumen and mastic:

DSTU 4148-2003 - Viscous petroleum road bitumens; in

TU U 03112610.003-96 - Bituminous - polymer filled mastic;

TU U 24.3-13427220-001-2003 - Mastic MG-1 waterproofing PC "Leader";

DSTU U.B.V.2.7.-79-98 - Waterproofing butyl rubber and bituminous mastics - butyl rubber. TU;

DSTU U.B.V. 2.7-108-2001 - Roofing and waterproofing mastics. General technical conditions. in

A well-known alloy of bitumen with rubber crumb (rubrax). By (aut.sv. USSR Mo281240, СО8И 95/00, 04.7.1969 | a bituminous composition containing the following components, weight 9о is known:

Io)

Bitumen - 40-70; yu

Polyethylene - 30-60;

From Coal solvent - - 5-35. --

The disadvantage of this solution as a lined waterproofing mastic was its insufficient heat resistance. "

Known waterproofing materials include bitumen, rubber crumb and fillers. Such materials have good physical, mechanical and operational characteristics, but their frost resistance and a number of other characteristics are insufficient. и For example, by (a.s. USSR Mob49731, СО8И 95/00)| a complex composition for waterproofing was announced, which includes, in addition to the above-mentioned main three components, several additional components: vulcanized rubber waste - 25-65% bitumen - 15-40 pyrolysis resin straight-run benzene -0.6-1.3 o gray - 0.5 -0.6; (9) mercaptobenzthiazole - 0.2-2.0; o 50 tetramethylthiuramdisulfide -0.1-2.0 filler (asbestos, kaolin, miv, carbon black, talc) - other. what

This composition has increased frost resistance (up to -409C) while maintaining high strength characteristics, but for its production it is necessary to have a number of special chemicals available.

This decision was adopted as a prototype due to the partial coincidence of the purpose and mainly due to the coincidence of a number of features - from determining the composition of the used components: bitumen, rubber waste and modifying additives.

The basis of the proposed useful model is the task of improving the composition of cold bitumen mastic with the selection of a solvent and its quantitative ratio in relation to bitumen to obtain high-quality mastics with a working viscosity that allows them to be applied to isolated surfaces in different ways, for example, with a brush, because a pneumatic sprayer. The technical result consists in improving the characteristics of mastics, for example, in increasing adhesion to the concrete surface (increasing adhesiveness), increasing elasticity and resistance to the action of water, acids, alkalis and salts.

The task is solved by the fact that the mastic based on a bituminous composition containing the basic product in the composition of petroleum bitumen, rubber crumb, modifying additive, solvent (solvent), according to the useful 65 model, the basic product contains components in the following ratio, weight. because: -D-

Petroleum bitumen 35-50;

Rubber crumb 40-60;

Additive that modifies in the form of granulated polystyrene 1-2. and coal solvent is used as a solvent, and the ratio of the solvent to the base product is chosen in the range of 0.25-0.35.

Immediately before applying the mastic to the surface to be protected, to ensure the necessary 70 viscosity, it can be further diluted with a solvent within wide limits.

The authors have prepared an application for a utility model "Process of obtaining a bituminous composition", which discloses the method of manufacturing the above-mentioned basic product under the trade name "Donizol". The commercial name of the useful mastic model that is claimed is "Hydrodon".

Since the initial composite bituminous product "Donizol" dissolves well in aromatic /5 agents, the preparation of mastic compounds is carried out according to a technology similar to the preparation of bitumen-polymer, bituminous-rubber mastics.

To do this, the initial composition of Donizol is heated in a reactor with stirring to 90-1002С, the solvent is dosed in parts with simultaneous circulation without heating until a homogeneous mass is obtained.

The temperature of the mastic after the introduction of the entire volume of solvent should not exceed 502C. Unloading, storage and storage of mastic is carried out at a temperature not higher than З02С,

Tests to determine the properties of coatings using the claimed "Hydrodon" mastic were carried out by the SE "Donetsk PromstroyNiIIiproekt of the State Joint Stock Company" "Construction Company

Ukrstroy" in accordance with the regulatory requirements for waterproofing and protective coatings and included the definition of: - drying time (GOST 19007-73) (no more than 24-36 hours for paint coatings and 2-3 hours for the device of waterproofing coatings). C - the appearance of the film - adhesion to metal (GOST 15140-78) and concrete on the OA-1 adhesiometer; - frost resistance (according to the decrease in elasticity at negative temperatures); - - resistance to the static action of water, solutions of acids, alkalis, salt ( GOST 9.403-80).

Film coatings based on solutions of samples of the well-known MG-1 mastic (PK "Leader") and mastic according to TU U 03112610.003-96 were used as comparative references. Sample solutions of two reference mastics and mastic, which is claimed, had close working viscosities of 180 sec. up to 230 sec. according to B3-4, were applied in the form of two layers with a thickness of 0.55 mm and 2143 g/m2, respectively; 0.82 mm and 1860 g/m2; 0.37 mm and 586 g/m? (one layer). what

The declared samples were resistant in accordance with GOST 9.403-90 to the action of solutions of 1095th alkali h

Mmaon, Z95th and 595th solutions of hydrochloric acid. The swelling of the coating of the tested mastic in an aqueous medium for 10 days is only 0.895.

The investigated film coatings have sufficiently high elasticity, which exceeds the elasticity of the well-known mastic MG-1 (PC "Leader").

The studied composition of the mastic also has high adhesion to the concrete surface (adhesion value is 5.9 kg/cm2 compared to 2.16 kg/cm for the well-known mastic. MG-1 (PK "Leader"). the value of the adhesion value for a 2-layer coating based on butyl rubber and bituminous rubber (at least 2 kg/cm) and a single-layer coating based on bitumen-rubber mastic (at least

Tkg/cm 2).

The results of the presented experimental studies of coatings based on the composition of "Hydrodon" mastic - which is claimed, confirm the prospects of its further improvement in the direction of optimization of brand 4! rubber crumb and the selection of specific compositions of the components used, within the limits of their declared ratios. and "Hydrodon" mastic based on the use of "Donizol" bituminous composition, which is declared, meets about 20 requirements of the sanitary legislation of Ukraine. Conclusion of the State sanitary-epidemiological examination of the Ministry of Health

of Ukraine Me05.03.02-07/45230 dated 11.10.2005), as well as regulatory requirements for a utility model for novelty and industrial applicability.

Claims (1)

The formula of the invention is a mastic based on a bituminous composition, which contains a basic product in the composition of petroleum bitumen, rubber crumb, a modifying additive and a solvent as a solvent, which is distinguished by the fact that the basic product contains the following components in their ratio, weight. 90: 60 petroleum bitumen 35-50 rubber crumb 40-60 modifying additive in the form of granulated polystyrene 1-2, 65 and coal solvent is used as a solvent, and the ratio of the solvent to the base product is chosen within 0.25-0.35. Official bulletin "Industrial Property". Book 1 "Inventions, useful models, topographies of integrated microcircuits", 2006, M 7, 15.07.2006. State Department of Intellectual Property of the Ministry of Education and Science of Ukraine. - h s IS) IS) h- - with . and? - 1 1 o 50 that c 60 b5