Fire resistant eco concrete blocks containing waste glass

    公开(公告)号:US10450230B2

    公开(公告)日:2019-10-22

    申请号:US15716488

    申请日:2017-09-26

    Abstract: A composition for forming fire resistant concrete block, that includes a cementitious binder material comprising alumina cement, recycled fine aggregate, and recycled coarse aggregates, the recycled fine aggregates including 10-50 wt % recycled particulate glass cullet having a particle size of 600 microns or less, a concrete block formed from the composition exhibiting a decrease in thermal conductivity with increasing temperature at temperatures causing the particulate glass cullet to melt. A concrete block fabricated from the composition exhibits a fire resistance of at least three hours, a density below 2000 kg/m3, and a compressive strength of at least 7 MPa.

    Atomized anti-scratching nano-coating for glass surface and method of manufacturing thereof

    公开(公告)号:US11384012B2

    公开(公告)日:2022-07-12

    申请号:US17035737

    申请日:2020-09-29

    Abstract: A durable, hydrophobic and anti-scratching nano-coating for coating on a glass substrate or surface having a water contact angle of about 90° or more, a reduced coefficient of friction by 50% or more, and a reduced surface roughness compared to those of the glass substrate or surface without the nano-coating is provided, which includes a layer of fluorinated silica derived from sol-gel hydrolysis between one or more tetraalkoxysilanes having at least three alkoxy groups and one or more polyfluorinated silanes having at least a trialkoxysilane and from 15 to 17 fluorine atoms in the presence of a catalyst to a reaction mixture of the sol-gel hydrolysis between the one or more tetraalkoxysilanes and the one or more polyfluorinated silanes, and a solvent. A related method of fabricating the nano-coating via atomization of acid-containing or alkali-containing solution and sol-gel precursor solution onto the glass surface is also provided.

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