公开(公告)号：US12180105B1

公开(公告)日：2024-12-31

申请号：US18615277

申请日：2024-03-25

Applicant: KING SAUD UNIVERSITY

Inventor： Mohammad Iqbal Khan ,  Galal Mohamed Fares ,  Yassir Mohammed Abbas ,  Fahad Khshim Alqahtani

IPC: B02C17/00 ,  B02C17/04 ,  B02C17/20 ,  C03B19/10

Abstract: The present disclosure relates to a method of making nanoparticles from glass, the method including: gathering glass waste; hammering the glass waste into ready to grind pieces; adding an amount of the ready to grind pieces into a grinding bowl; adding steel balls to the grinding bowl; grinding the ready to grind pieces; and obtaining a powder containing the nanoparticles.

公开(公告)号：US12234156B1

公开(公告)日：2025-02-25

申请号：US18777964

申请日：2024-07-19

Applicant: KING SAUD UNIVERSITY

Inventor： Mohammad Iqbal Khan ,  Galal Mohamed Fares ,  Yassir Mohammed Abbas

IPC: C01B33/18

Abstract: A method of making nanosilica from glass, the method comprising: gathering glass waste; grinding the glass waste to obtain a glass powder containing nanoparticles; adding the glass powder containing the nanoparticles to a water solution comprising a dispersing agent to obtain a colloidal system containing nanoparticles; separating the nanoparticles from the colloidal system to obtain separated nanoparticles; and drying the separated nanoparticles to obtain nanosilica.

公开(公告)号：US10301218B1

公开(公告)日：2019-05-28

申请号：US16125627

申请日：2018-09-07

Applicant: KING SAUD UNIVERSITY

Inventor： Mohammad Iqbal Khan ,  Galal Fares

IPC: C04B28/04 ,  C04B14/16 ,  C04B14/06 ,  C04B24/32 ,  C04B14/04 ,  C04B16/06 ,  C04B103/32 ,  C04B111/00

Abstract: The low cement content strain-hardening cementitious composite is cement with a natural pozzolan replacing a significant portion of the Portland cement therein. The strain-hardening cementitious composite includes a mixture of cement, fly ash, sand, a polycarboxylic ether-based superplasticizer, and reinforcing polyvinyl alcohol fibers. The mixture is formed with a low content of Portland cement (6-12 wt %) and with ground scoria as the natural pozzolan (5-20%). The sand forms at least 22 wt % of the strain-hardening cementitious composite and is preferably in the form of sieved dune sand, having a silicon dioxide concentration of between approximately 80 and 90 wt %, and a feldspar concentration of between approximately 10 and 20 wt %. The dune sand is sieved such that the sand grains have a median diameter of less than or equal to approximately 300 μm, and preferably have a median diameter of approximately 200 μm.

公开(公告)号：US12151972B1

公开(公告)日：2024-11-26

申请号：US18765547

申请日：2024-07-08

Applicant: KING SAUD UNIVERSITY

Inventor： Mohammad Iqbal Khan ,  Galal Mohamed Fares ,  Yassir Mohammed Abbas

IPC: C04B14/48 ,  C04B14/06 ,  C04B18/14 ,  C04B24/26 ,  C04B28/04 ,  C04B103/32

Abstract: An ultra-high performance concrete (UHPC) including empty quarter desert sand (EQS) and micro-steel fibers (HyTUHPC). The ultra-high performance concrete (UHPC) can have a high viscosity due to the presence of EQS.

公开(公告)号：US11905210B1

公开(公告)日：2024-02-20

申请号：US18231948

申请日：2023-08-09

Applicant: KING SAUD UNIVERSITY

Inventor： Galal Fares ,  Mohammad Iqbal Khan

IPC: C04B14/22 ,  C04B7/02 ,  C04B14/06 ,  C04B18/08 ,  C04B24/26 ,  C04B28/04 ,  C04B16/06 ,  C04B20/00 ,  C04B18/14 ,  C04B103/32

CPC classification number: C04B14/22 ,  C04B7/02 ,  C04B14/068 ,  C04B16/0641 ,  C04B18/08 ,  C04B18/141 ,  C04B20/006 ,  C04B24/2664 ,  C04B28/04 ,  C04B2103/32

Abstract: The cementitious mixture includes cement with a concentration of between about 5 wt % and about 20 wt %; powdered glass with a concentration of between about 5 wt % and about 35 wt %; fly ash with a concentration of between about 20 wt % and about 40 wt %; sand with a concentration of between about 18 wt % and about 25 wt %; a poly(carboxylate ether)-based superplasticizer with a concentration of between about 0.8 wt % and about 1.2 wt %; and water with a concentration of between about 14 wt % and about 16 wt %. Alternatively, the fly ash may be replaced with ground granulated blast furnace slag (GGBFS). The powdered glass is preferably powdered recycled glass cullet. The glass cullet may be ground to have an average particle size of about 10 μm or less. The sand may be red dune sand, and the cement may be Portland cement or white cement. The cementitious may also include polyvinyl alcohol (PVA) microfibers.