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  2. Concrete block - Wikipedia

    en.wikipedia.org/wiki/Concrete_block

    A pallet of "8-inch" concrete blocks An interior wall of painted concrete blocks Concrete masonry blocks A building constructed with concrete masonry blocks. A concrete block, also known as a cinder block in North American English, breeze block in British English, concrete masonry unit (CMU), or by various other terms, is a standard-size rectangular block used in building construction.

  3. Fiber-reinforced concrete - Wikipedia

    en.wikipedia.org/wiki/Fiber-reinforced_concrete

    To ensure that each fiber strand is effective, it is recommended to use fibers longer than the maximum aggregate size. Normal concrete contains 19 mm (0.75 in) equivalent diameter aggregate which is 35-45% of concrete, fibers longer than 20 mm (0.79 in) are more effective.

  4. Waffle slab - Wikipedia

    en.wikipedia.org/wiki/Waffle_slab

    Slab depth is typically 75 mm (3 in) to 130 mm (5 in) thick. [5] [3] As a rule of thumb, the depth should be 1 ⁄ 24 of the span. [5] The width of the ribs is typically 130 mm (5 in) to 150 mm (6 in), and ribs usually have steel rod reinforcements. [5] The distance between ribs is typically 915 mm (3 ft). [3]

  5. Fly ash brick - Wikipedia

    en.wikipedia.org/wiki/Fly_ash_brick

    The finished product is a lighter block, less than 40% the weight of conventional Bricks, while providing the similar strengths. The specific gravity stays around 0.6 to 0.65 [ citation needed ] . Using these blocks in buildings reduces the dead load, allowing one to save around 30 to 35% [ citation needed ] of structural steel, and concrete.

  6. Rusticated concrete block - Wikipedia

    en.wikipedia.org/wiki/Rusticated_concrete_block

    A catalog from 1939 offered two options for buyers interested in forming their own concrete blocks. The "Wizard" Concrete Block Machine was available for $32.95 and produced 8 × 8 × 16 inch blocks in a "Medium rock-face design". For $52.95, a prospective buyer could get the "Triumph" Concrete Block Machine which had the capacity of producing ...

  7. An Extra 5 Minutes of Vigorous Exercise Per Day Could Help ...

    www.aol.com/extra-5-minutes-vigorous-exercise...

    A new study shows an extra 5 minutes of daily vigorous exercise helps control hypertension. The findings become more significant with an extra 10 and 20 minutes of heart-pumping physical activity ...

  8. Sandcrete - Wikipedia

    en.wikipedia.org/wiki/Sandcrete

    Sandcrete is usually used as hollow rectangular blocks similar to concrete masonry units, often 45 centimetres (18 in) wide, 15 centimetres (5.9 in) thick, and 30 centimetres (12 in) with hollows that run from top to bottom and occupy around one third of the volume of the block. The blocks are joined together with mortar.

  9. Self-leveling concrete - Wikipedia

    en.wikipedia.org/wiki/Self-leveling_concrete

    Concrete toppings can also receive color, stains, saw cuts or mechanical polishing to produce a decorative concrete finished wear surface. When self-leveling concrete is poured, it has a viscosity similar to that of pancake batter. A gauge rake is used to move it into place without spreading it too thin. The finishing is then done by lightly ...

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