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  2. Compressed earth block - Wikipedia

    en.wikipedia.org/wiki/Compressed_earth_block

    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. Forming compressed earth blocks requires dampening, mechanically pressing at high pressure, and then drying the ...

  3. Soledad Canyon Sand and Gravel Mining Project - Wikipedia

    en.wikipedia.org/wiki/Soledad_Canyon_Sand_and...

    The Soledad Canyon Sand and Gravel Mining Project is a mining project in Northern Los Angeles County east of the city of Santa Clarita, California, United States.First mined in 1921, the property was mined by Curtis Sand and Gravel from the early 1960s until 1989, when, as a result of a legal settlement, the Bureau of Land Management put two 10-year leases to mine sand and gravel from the site ...

  4. Oldcastle Materials - Wikipedia

    en.wikipedia.org/wiki/Oldcastle_Materials

    Oldcastle Materials Inc. is a supplier of asphalt, concrete, and other building materials, and also offers construction and paving services. The Atlanta-based company is a subsidiary of CRH plc, a publicly traded international group of diversified building materials businesses, [2] [3] and has approximately 18,000 employees at 1,200 locations, as of March 2018.

  5. Granite Construction - Wikipedia

    en.wikipedia.org/wiki/Granite_Construction

    The company is both a heavy civil construction contractor and construction aggregate manufacturer, owning or leasing quarries in several Western states for extracting mostly sands, gravel, and crushed stone products. The company was under investigation from the SEC from 2019 to 2021 for misrepresenting revenue, and as a result paid fines to ...

  6. List of quarries in the United States - Wikipedia

    en.wikipedia.org/wiki/List_of_quarries_in_the...

    Stringfellow Acid Pits a former rock quarry in Jurupa Valley in Riverside County, California, which became a toxic waste dump and later a Superfund site. Deemed one of the most polluted sites in California in 1980s, and associated with mismanagement and scandal in the U.S. Environmental Protection Agency.

  7. Decorative concrete - Wikipedia

    en.wikipedia.org/wiki/Decorative_concrete

    A brown Exposed Aggregate concrete driveway with a gray Exposed Aggregate border. Exposed aggregate concrete is a popular decorative concrete option known for its decorative gravel appearance. During the concrete pouring process, the top layer of cement/sand paste is removed to reveal the embedded aggregate (stones, pebbles, or even shells).