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  2. Engineering drawing abbreviations and symbols - Wikipedia

    en.wikipedia.org/wiki/Engineering_drawing...

    kilopounds per square inch, that is, thousands of pounds per square inch KSI (or ksi), also abbreviated KPSI or kpsi, is a common non- SI measurement scale for ultimate tensile strength , that is, the number of units of tensile force that a material can endure per unit of cross-sectional area before breaking.

  3. Compressed earth block - Wikipedia

    en.wikipedia.org/wiki/Compressed_earth_block

    Building a CEB project in Midland, Texas in August 2006. A compressed earth block (CEB), also known as a pressed earth block or a compressed soil block, is a building material made primarily from an appropriate mix of fairly dry inorganic subsoil, non-expansive clay, sand, and aggregate.

  4. Template:Brick chart - Wikipedia

    en.wikipedia.org/wiki/Template:Brick_chart

    The template can format a brick chart within 1/6 second, so 3 brick charts could appear within a page and add only 1/2 second to reformat, or edit-preview. The initial creation of the template occurred in August 2009; however, the alignment for display problems with overlapped bars was fixed in September 2012, over 3 years later.

  5. Wikipedia : WikiProject Electronics/Standard symbols

    en.wikipedia.org/.../Standard_symbols

    meters per second speed of light in material medium meters per second frequency: hertz (cycles per second) angular frequency: radians per second wave number: radians per meter wavelength: meters per cycle

  6. Insulating concrete form - Wikipedia

    en.wikipedia.org/wiki/Insulating_concrete_form

    The first expanded polystyrene ICF Wall forms were developed in the late 1960s with the expiration of the original patent and the advent of modern foam plastics by BASF. [citation needed] Canadian contractor Werner Gregori filed the first patent for a foam concrete form in 1966 with a block "measuring 16 inches high by 48 inches long with a tongue-and-groove interlock, metal ties, and a waffle ...

  7. Hydraform International - Wikipedia

    en.wikipedia.org/wiki/Hydraform_International

    The Hydraform Interlocking Soil Block (hydraform block) is an interlocking earth block used in many countries for construction purposes. The hydraform block is made from soil cement which is a mixture of soil, cement and water, and is hydraulically compressed to form a high quality interlocking soil block. Soil from the building site can be ...

  8. 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, or concrete masonry unit (CMU), or by various other terms, is a standard-size rectangular block used in building construction.

  9. Area density - Wikipedia

    en.wikipedia.org/wiki/Area_density

    Fabric "weight" is often specified as mass per unit area, grams per square meter (gsm) or ounces per square yard. It is also sometimes specified in ounces per yard in a standard width for the particular cloth. One gram per square meter equals 0.0295 ounces per square yard; one ounce per square yard equals 33.9 grams per square meter.