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  2. London stock brick - Wikipedia

    en.wikipedia.org/wiki/London_stock_brick

    A wall in Islington London stock bricks, rather dimly lit. London stock brick is the type of handmade brick which was used for the majority of building work in London and South East England until the increase in the use of Flettons and other machine-made bricks in the early 20th century.

  3. Color chart - Wikipedia

    en.wikipedia.org/wiki/Color_chart

    Color chips or color samples from a plastic pellet manufacturer that enables customers to evaluate the color range as molded objects to see final effects. A color chart or color reference card is a flat, physical object that has many different color samples present. They can be available as a single-page chart, or in the form of swatchbooks or ...

  4. List of RAL colours - Wikipedia

    en.wikipedia.org/wiki/List_of_RAL_colours

    Below is a list of RAL Classic colours [1] from the RAL colour standard. Alongside every colour, the corresponding values are given for: hexadecimal triplet for the sRGB colour space, approximating the given RAL colour; sRGB value; Grey value calculated from (0.2126 × red) + (0.7152 × green) + (0.0722 × blue) [12] CIE L*a*b* values

  5. RAL colour standard - Wikipedia

    en.wikipedia.org/wiki/RAL_colour_standard

    RAL is a colour management system used in Europe that is created and administered by the German RAL gGmbH [1] (RAL non-profit LLC), which is a subsidiary of the German RAL Institute . In colloquial speech, RAL refers to the RAL Classic system, mainly used for varnish and powder coating, but now plastics as well. Approved RAL products are ...

  6. Ashlar - Wikipedia

    en.wikipedia.org/wiki/Ashlar

    Dry ashlar masonry laid in parallel courses on an Inca wall at Machu Picchu Ashlar masonry north gable of Banbury Town Hall, Oxfordshire Ashlar polygonal masonry in Cuzco, Peru Quarry-faced red Longmeadow sandstone in random ashlar was specified by architect Henry Hobson Richardson for the North Congregational Church (Springfield, Massachusetts, 1871).

  7. 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.

  8. Lime mortar - Wikipedia

    en.wikipedia.org/wiki/Lime_mortar

    Lime comes from Old English lim ('sticky substance, birdlime, mortar, cement, gluten'), and is related to Latin limus ('slime, mud, mire'), and linere ('to smear'). [7] Mortar is a mixture with cement and comes from Old French mortier ('builder's mortar, plaster; bowl for mixing') in the late 13th century and Latin mortarium ('mortar'). [7]

  9. Colour Index International - Wikipedia

    en.wikipedia.org/wiki/Colour_Index_International

    Colour Index International (CII) is a reference database jointly maintained by the Society of Dyers and Colourists and the American Association of Textile Chemists and Colorists. [1] It currently contains over 27,000 individual products listed under 13,000 Colour Index Generic Names. [ 2 ]