Road surface covering system
    26.
    发明申请

    公开(公告)号:US20190016637A1

    公开(公告)日:2019-01-17

    申请号:US15999944

    申请日:2018-08-30

    申请人: RJSK, LLC

    摘要: A road surface covering system includes a road surface covering of concrete or asphalt, water permeable tiles disposed adjacent to an outer edge of the road surface covering and having a water conductivity of at least 7 inches of water per hour, and a subgrade bed of fill material including a porous sand. The porous sand includes at least 70% of a naturally occurring micaceous arkose rock material having at least 30 wt % of mica, and at least 50 vol % of the micaceous arkose rock material having a mean diameter of between 0.060 mm and 0.65 mm. The micaceous arkose rock material being previously kilned at a temperature of between 1100° C. and 1300° C.

    Mineral-based porous sand and methods for making mineral-based porous sand

    公开(公告)号:US10106463B2

    公开(公告)日:2018-10-23

    申请号:US14756884

    申请日:2015-10-26

    申请人: RJSK, LLC

    摘要: A method for manufacturing a mineral-based porous granular material includes providing a starting material of at least 70 weigh % of an micaceous arkose rock material. The starting material is in a granular form having at least 50 volume % with a mean diameter of between about 0.060 mm and about 0.65 mm. The method includes placing the starting material into a bed on a support surface, placing the support surface containing the bed of the starting material into a kiln, and subjecting the bed of starting material within the kiln to a basic processing temperature of between about 1100° C. and about 1300° C. for a basic processing temperature processing time selected to transform at least 40 volume % of micaceous components in the micaceous arkose material into feldspar, and to evolve at least 30 volume % of metal sulfides within the feldspar from the feldspar as metallic oxides.