FLEXIGUM - MODERN WATERPROOFING TECHNOLOGY IN THE CONSTRUCTION OF UNDERGROUND AND ABOVEGROUND STRUCTURES

THE "FLEXIGUM" WATERPROOFING COMPOUND IS THE LATEST GENERATION OF BITUMEN-LATEX EMULSION MODIFICATIONS.

SCOPE OF APPLICATION
waterproofing of underground parts of buildings and structures;
device for hydro-waterproofing of operable roofs;
waterproofing and corrosion protection of underground and surface building structures of civil and industrial buildings and structures;
waterproofing of transport structures, including: structures of tunnels and subway stations, structures of road and railway tunnels, structures of retaining walls, crossings;
waterproofing of collector tunnels, protection against biogenic sulfuric acid aggression of collector tunnel vaults;
waterproofing and corrosion protection of reinforced concrete and metal tanks of industrial and civil purposes;
waterproofing of the passages of underground utilities.



PRODUCT DESCRIPTION
The specified waterproofing composition is a disperse system consisting of two mutually insoluble liquids (bitumen-water), of which one disperse phase (bitumen) is distributed in the other disperse medium (water) in the form of the smallest particles with diameter of 5...10 µm, covered with a very thin layer of fatty acid-based emulsifier, which provides technological stability of such waterproofing system. The introduction of the filler - polychloroprene latex - significantly increases the strength and elastic properties of the material.
FLEXIGUM is applied only mechanically using an airless spraying unit. The spraying process is carried out by feeding two components: bitumen-latex emulsion and coagulant, in two circuits including a system of flexible high-pressure hoses. The hoses are connected to a dual nozzle sprayer with cone-shaped nozzles in the nozzles. Due to the specific shape of the nozzle outlets, the FLEXIGUM components become flat cone-shaped jets and are mixed in the air: the emulsion is immediately re-emulsified (breaking of the emulsifier shell). When the bitumen and latex particles hit the substrate, they form a membrane. After the separation of technological water, the material acquires the properties and physical and mechanical characteristics of high-quality seamless waterproofing.
Surface drying is instantaneous.
Drying on the "peel"-8 hours.
Complete stabilization of the membrane - 24 to 48 hours.

MAIN PROPERTIES
stability - the uniformity of application of fine material in the form of a homogeneous membrane;
elasticity - latex reinforced material becomes exceptionally elastic, stretching more than 1800%;
manufacturability - application on the surface of any geometric shape and configuration;
mobility - complete with hoses up to 80 m allows you to work in remote areas and hard-to-reach places;
high productivity - a team of three people covers an area of up to 1000 m² in 8 hours;
safety - the material is non-toxic, applied without heating, environmentally friendly.


Physical and mechanical properties of the "FLEXIGUM" membrane

The high durability (on the basis of tests dated November 17, 2009 not less than 75 years) and water resistance of waterproofing of underground parts of buildings, made of FLEXIGUM composition, is due to the following: - The bitumen-latex emulsion is prepared on the liquid emulsifier with the help of technological methods providing receipt of small size bitumen micelles which are comparable to the sizes of latex particles that determine a homogeneous structure and stable properties of the waterproofing material; - The latex of synthetic rubber which is well compatible with bitumen is used as a modifying bitumen emulsion component; - The ratio of bitumen emulsion and latex is such that it provides high plastic properties of the membrane and dissipation of stresses in the waterproofing layer arising from external physical impacts.

FLEXIGUM membrane is effective in protecting concrete from biogenic sulfuric acid aggression (the average concentration of hydrogen sulfide, at which the coating provides reliable protection of concrete for more than 10 years - 21 mg/m3;The FLEXIGUM membrane is resistant to static attack by aggressive liquids (25% aqueous sulfuric acid, a mixture of 3-5% hydrofluoric acid, 7-10% nitric acid and 25% caustic soda, and is relatively resistant to 25% hydrochloric acid);The FLEXIGUM membrane is resistant to attack by aggressive liquids (5% aqueous sodium hydroxide solution, 5% hydrogen sulphide solution and 2% bleach solution); the FLEXIGUM membrane has a high radon proof property: Radon diffusion coefficient (D) of the membrane FLEXIGUM has a high radon shielding capacity. diffusion coefficient (D) is 2.5 × 10-12 m2/s. FLEXIGUM membrane ensures double-sided adhesion to the waterproofed surfaces when sprayed on the envelop structures, which serve as a formwork. FLEXIGUM guarantees full membrane adhesion to the main structures of the building and ensures a closed contour of the waterproofing system of the structure as a whole.