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  2. Permeable paving - Wikipedia

    en.wikipedia.org/wiki/Permeable_paving

    Selection of the type of cellular grid depends to an extent on the surface material, traffic and loads. The cellular grids are installed on a prepared base layer of open-graded stone (higher void spacing) or engineered stone (stronger). The surface layer may be compacted gravel or topsoil seeded with grass and fertilizer. In addition to load ...

  3. Melon gravel - Wikipedia

    en.wikipedia.org/wiki/Melon_gravel

    Melon gravel are a geological deposit of mostly basalt boulders that were formed by the Lake Bonneville flood and deposited along the Snake River Plain in the western United States around 15,000 years ago. [1] Melon gravel range in size from coarse sand to well over fifteen feet (4.6 m) in diameter, and generally appear rounded. [2]

  4. Macadam - Wikipedia

    en.wikipedia.org/wiki/Macadam

    Telford kept the natural formation level and used masons to camber the upper surface of the blocks. He placed a 6-inch (15 cm) layer of stone no bigger than 2.4 in (6 cm) on top of the rock foundation. To finish the road surface he covered the stones with a mixture of gravel and broken stone. This structure came to be known as "Telford pitching."

  5. Road surface - Wikipedia

    en.wikipedia.org/wiki/Road_surface

    Applying gravel, or "metalling", has had two distinct usages in road surfacing. The term road metal refers to the broken stone or cinders used in the construction or repair of roads or railways, [46] and is derived from the Latin metallum, which means both "mine" and "quarry". [47] The term originally referred to the process of creating a ...

  6. Resin-bound paving - Wikipedia

    en.wikipedia.org/wiki/Resin-bound_paving

    The ratio of resin to aggregate should be at the optimal amount (7% resin to aggregate) depending on the application and environment type, and stone type which should be kiln dried mixed aggregate incorporating 2-5 mm sizes to ensure that the aggregate gets sufficiently coated and also to meet the standard requirements when tested to BS 8204-6: ...

  7. Human composting is rising in popularity as an earth-friendly ...

    www.aol.com/human-composting-rising-popularity...

    In a haze of grief in the immediate aftermath of his death, the knowledge that her son’s soil represented a new beginning brought Muckenhoupt some measure of comfort.