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  2. List of commercially available roofing materials - Wikipedia

    en.wikipedia.org/wiki/List_of_commercially...

    Structural concrete can also be used for flat roof constructions. There are three main categories, precast/prestressed, cast-in-place and shell. There are many types of precast/prestressed concrete roofing. The following are the most common types. [9] Double tees are the most common products for short spans up to 60 feet (18 m)

  3. Eternit - Wikipedia

    en.wikipedia.org/wiki/Eternit

    Front cover of a brochure for Hatscheks Eternit Schiefer (asbestos cement roof tiles) Fibre-reinforced cement products were invented in the late 19th century by the Austrian Ludwig Hatschek . Principally he mixed 90% Portland cement and 10% asbestos fibres with water and ran it through a cardboard machine.

  4. Waste light concrete - Wikipedia

    en.wikipedia.org/wiki/Waste_light_concrete

    Including polystyrene concrete, heavy plastic concrete, incinerated bottom ash concrete, desert sand concrete and many more, which at the time of writing resulted in around 400 samples with different physical qualities. In general, the compressive strength of the final products is between 3 N/mm 2 to 12 N/mm 2 with a weight of 100 kg/m 3 to 800 ...

  5. Autoclaved aerated concrete - Wikipedia

    en.wikipedia.org/wiki/Autoclaved_aerated_concrete

    Autoclaved aerated concrete (AAC) is a lightweight, prefabricated concrete building material. Developed initially in the mid-1920s, it has expanded into widespread use. [citation needed] It is most suitable for producing a lightweight or most cost-effective alternative to traditional concrete blocks and clay bricks. [1]

  6. Expanded polystyrene concrete - Wikipedia

    en.wikipedia.org/wiki/Expanded_polystyrene_concrete

    It is created by using small lightweight EPS balls (sometimes called Styrofoam) as an aggregate instead of the crushed stone that is used in regular concrete. [3] It is not as strong as stone-based concrete mixes, but has other advantages such as increased thermal and sound insulation properties, easy shaping and ability to be formed by hand ...

  7. Foam concrete - Wikipedia

    en.wikipedia.org/wiki/Foam_concrete

    Foam concrete compounds utilising fly ash in the slurry mix is cheaper still, and has less environmental impact. Foam concrete is produced in a variety of densities from 200 kg/m 3 to 1,600 kg/m 3 depending on the application. [1] Lighter density products may be cut into different sizes.

  8. How California eco-bureaucrats halted a Pacific Palisades ...

    www.aol.com/news/california-eco-bureaucrats...

    Most notably, the county-run Santa Ynez Reservoir — which is right in the heart of Pacific Palisades, and can hold 117 million gallons — was empty when the fires broke out last week, and has ...

  9. Asbestos cement - Wikipedia

    en.wikipedia.org/wiki/Asbestos_cement

    The roof is sheeted with corrugated fibro sheets and the walls with flat fibro sheeting, with fibro battens covering the joints. Example of asbestos cement siding and lining on a post-war temporary house in Yardley, Birmingham. Nearly 40,000 of these structures were built between 1946 and 1949 to house families.

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