Asbestos Board

asbestos board

[as′bes·təs ‚bȯrd]
(materials)
A sheet of fire-resistant material made from asbestos fiber and portland cement.

Asbestos Board

 

fireproof insulating material made from chrysotile-asbestos fibers impregnated with bakelite. It is produced in the form of sheets 1,000 mm in length, 1,000 mm in width, and 2–10 mm in thickness. Asbestos boards are used as facing and heat-insulating material, for sealing joints in machines and equipment, and also in the manufacture of gaskets. Such boards may also serve as filler in combined asbestos-metal linings installed in pipelines operating under pressures of 4 meganewtons per m2 (40 kilograms-force per cm2) at temperatures ranging from 300° to 400° C.

REFERENCE

Kitaitsev, V. A. Tekhnologiia teploizoliatsionnykh materialov. Moscow, 1959.

E. G. VAGINA

asbestos-cement board, asbestos-cement wallboard, asbestos sheeting

A dense, rigid, board containing a high proportion of asbestos fibers bonded with portland cement; resistant to fire, flame, and weathering; has low resistance to heat flow. Used as a building material in sheet form and corrugated sheeting.
References in periodicals archive ?
Something as simple as drilling a hole in a wall can be incredibly dangerous if DIY-ers don't take steps to ensure they are not drilling into an asbestos board or an electrical wire.
Later that year, he worked as a labourer at Washington Chemical Company, where his job was to bag up the waste within the factory, including collecting cut-offs of asbestos board.
Camp Abbot consisted of nearly 100 buildings, "some or all of which" featured cement asbestos board siding, as well as insulation, floor tiles, ceilings and walls containing asbestos, Sunriver's suit alleges.
Dubai: Despite neighbouring countries such as Oman and Saudi Arabia that have totally banned asbestos products and are relying on alternatives, the UAE only prohibits the manufacture and import of asbestos board, so mixing asbestos cement in a factory in the heart of Dubai is completely legal, an asbestos risk consultant has said.
Cement asbestos board supports tiled surfaces; the hearth's underside is plywood.
Much of the concrete asbestos board was collected by Desler last year under mandates from the DEQ, but at some point the removal stopped and some of the asbestos was hauled back to the site from a landfill for nonpayment, Heister said.
Conventional 2-by-4 framing sheathed with gypsum board encases and raises the prefabricated metal firebox, which sits on a 1/8-inch-thick asbestos board set atop 3/4-inch plywood.
Pollutant removal: parquet, teerverklebt on tar asphalt: 650 m2, floor construction with insulation mineral wool: 500 m2, insulation overlay mineral wool roof space 3 000 m2, wooden surfaces with PCB contamination 400 m2, plasterboard ceilings and walls with old mineral wool, refrigerators with Teerkork, sanitary areas tar-seal equipment and piping with insulation and mineral wool Teerkork and asbestos-containing flanges, walls and radiators garments of asbestos-cement: 200 m2, asbestos board in radiator niches approximately 100 m2, weakly bonded asbestos sheets as ceiling lining.
Tenders are invited for Removal and proper disposal of the following asbestos-containing materials: floor tile, floor tile mastic, pipe insulation, mudded pipe joints/fittings, sink under-coating, cement asbestos board soffits, vinyl sheet wall covering and vermiculite, removal and proper recycling of mercury-containing fluorescent lamps.
Los pumping station Rewag with remediation wells version Civil engineering, reinforced concrete and demolition work: - 3,000 m3 of topsoil - Excavation 3,300 m3 - Nail wall 500 m2 - Embankment 3,000 m3 - Formwork 1~900 m2 - Konstruktivbeton 540 m3 - Grave excavation 1,000 m3 - Wegkofferung 1,700 m3 - Asphalt pavements 2,000 t - Concrete Demolition 50 m3 - Demolition asbestos board 95 m2 Los pipeline Rewag-Runtigenrain Construction works for utility lines cast northwest KSR 250 + 80 +150: - Grave excavation (forest) 2,000 m3 - Grave excavation (field) 2,000 m3 - Cable protection pipes 4,000 m
Trgs 519 - asbestos boards on radiator panels, Approx.