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  2. Basalt fiber - Wikipedia

    en.wikipedia.org/wiki/Basalt_fiber

    Basalt fibers are produced from basalt rocks by melting them and converting the melt into fibers. Basalts are rocks of igneous origin. The main energy consumption for the preparation of basalt raw materials to produce of fibers is made in natural conditions. Basalt fibers are classified into 3 types: Basalt continuous fibers (BCF), used for the ...

  3. Concrete block - Wikipedia

    en.wikipedia.org/wiki/Concrete_block

    In the US, concrete blocks are nominally 16 in (410 mm) long and 8 in (200 mm) wide. Their actual dimensions are 38 inch (9.5 mm) less than the nominal dimensions (to allow for 38-inch mortar joints between blocks in any orientation). [10] In Ireland and the UK, blocks are usually 440 mm × 215 mm × 100 mm (17.3 in × 8.5 in × 3.9 ...

  4. Rusticated concrete block - Wikipedia

    en.wikipedia.org/wiki/Rusticated_concrete_block

    Rusticated concrete block is the handmade product of in-field advances in cement making. [1] These concrete blocks first appeared in the late 19th century and are used mainly in residences and small building construction and are meant to resemble rusticated stone blocks. Rusticated concrete block involves a rough surface with a carved bevel ...

  5. Flow table test - Wikipedia

    en.wikipedia.org/wiki/Flow_table_test

    The diameter of the resulting flow is measured. The flow table test or slump-flow test is a method to determine consistency of fresh concrete. Flow table test is also used to identify transportable moisture limit of solid bulk cargoes. [ 1] It is used primarily for assessing concrete that is too fluid (workable) to be measured using the slump ...

  6. Reliability block diagram - Wikipedia

    en.wikipedia.org/wiki/Reliability_block_diagram

    A reliability block diagram (RBD) is a diagrammatic method for showing how component reliability contributes to the success or failure of a redundant system. RBD is also known as a dependence diagram (DD). A reliability block diagram. An RBD is drawn as a series of blocks connected in parallel or series configuration.

  7. Properties of concrete - Wikipedia

    en.wikipedia.org/wiki/Properties_of_concrete

    Reactive powder concrete, also known as ultra-high-performance concrete, can be even stronger, with strengths of up to 800 MPa (116,000 PSI). [4] These are made by eliminating large aggregate completely, carefully controlling the size of the fine aggregates to ensure the best possible packing, and incorporating steel fibers (sometimes produced ...

  8. Insulating concrete form - Wikipedia

    en.wikipedia.org/wiki/Insulating_concrete_form

    Insulating concrete form or insulated concrete form (ICF) is a system of formwork for reinforced concrete usually made with a rigid thermal insulation that stays in place as a permanent interior and exterior substrate for walls, floors, and roofs. The forms are interlocking modular units that are dry-stacked (without mortar) and filled with ...

  9. Concrete - Wikipedia

    en.wikipedia.org/wiki/Concrete

    A single concrete block, as used for construction. Concrete is a composite material composed of aggregate bonded together with a fluid cement that cures to a solid over time. Concrete is the second-most-used substance in the world after water, [1] and is the most widely used building material. [2] Its usage worldwide, ton for ton, is twice that ...

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