公开(公告)号：US20220242787A1

公开(公告)日：2022-08-04

申请号：US17588586

申请日：2022-01-31

申请人： Northwestern University

发明人： Ange-Therese Akono

IPC分类号： C04B28/04 ,  C04B14/02

摘要： Methods for the dispersion and synthesis of graphene nanoplatelet-cement composites and helical carbon nanotube composites with high concentrations of graphene nanoplatelets or helical carbon nanotubes that do not require chemical dispersion aids or dispersion-enhancing chemical surface functionalization are provided. Also provided are the reinforced cement composites made using the methods.

公开(公告)号：US11339093B2

公开(公告)日：2022-05-24

申请号：US16960988

申请日：2019-03-12

申请人： University of Exeter

发明人： Monica Craciun ,  Dimitar Dimov ,  Saverio Russo

IPC分类号： C04B14/02 ,  C04B40/00

摘要： A reinforced concrete material is described comprising a cementitious material (22) in which graphene is substantially uniformly distributed. A method of production of concrete is also described comprising the steps of forming a substantially uniform suspension (20) of graphene with water, and mixing the suspension (20) with a cementitious material (22) to form a concrete material (28).

公开(公告)号：US11325863B2

公开(公告)日：2022-05-10

申请号：US16634160

申请日：2018-07-30

申请人： Joshua Hogancamp ,  Zachary Grasley

发明人： Joshua Hogancamp ,  Zachary Grasley

IPC分类号： C04B28/04 ,  C04B14/02 ,  C04B14/38 ,  C04B20/00 ,  C04B20/10 ,  B82Y30/00 ,  C04B111/34

摘要： Provided herein are fiber reinforced cementitious materials and mixtures with increased crack resistance. The cementitious materials and mixtures include a cement and at least one carbon fiber. Also provide is a fiber reinforced cementitious mortar that includes the fiber reinforced cementitious material to which at least one of water, an aggregate material or a chemical admixture is added.

公开(公告)号：US20220135480A1

公开(公告)日：2022-05-05

申请号：US17083721

申请日：2020-10-29

申请人： Rey J. Rubio

发明人： Rey J. Rubio

IPC分类号： C04B28/04 ,  C04B20/00 ,  C04B14/46 ,  C04B14/02 ,  C04B14/10 ,  C04B22/14 ,  C04B22/12 ,  C04B22/06 ,  C04B18/14

摘要： An admixture for making a high-strength concrete with any type of water, including potable water, freshwater, saltwater, brackish water, reclaimed water or any other non-potable water. The admixture consists of basalt fibers, graphene nanoplatelets, calcium sulfide, calcium chloride, magnesium oxide and nanoclays. The admixture can be added to the cement to supplement it to increase the overall compressive strength, or the amount of cement used can be reduced by the amount of admixture added to shorten cure times. A concrete mix can also be prepared by replacing the calcium chloride with silica fume, reducing the amount of cement used, and introducing locally sourced aggregates, coarse and fine, to yield Ultra High Performance Concrete. Products made from the concrete incorporating the admixture have increased compression strength, improved cure times, reduced water consumption and corrosion, increased durability and workability, drastically reduced freeze-thaw effects, and superior crack control.

公开(公告)号：US20220024071A1

公开(公告)日：2022-01-27

申请号：US17382456

申请日：2021-07-22

申请人： S3 Concrete Technologies, Inc.

发明人： Jason S. ADAMS

IPC分类号： B28C7/00 ,  C04B14/02 ,  C04B14/48 ,  C04B14/06 ,  C04B16/06 ,  B28B11/04

摘要： A concrete product set by pouring a concrete slurry includes a concrete mixture, an aluminum-coated colloidal silica admixture, and optionally, at least one reinforcing fiber selected from the group of fibers. As the poured concrete slurry cures, the poured slurry hardens into a composite material product, and the concrete product defines capillary structures that at least in part fill with aluminum-coated silica and lime. Optional graphene oxide may be used in the concrete slurry, in which embodiment the surrounding aggregate and cement is embedded with graphene oxide flakes. A process for placing a jointless and/or fiberless slab made from the concrete product includes preparing a concrete slurry, pouring the concrete slurry onto substrate, and allowing the concrete slurry to cure.

公开(公告)号：US20220010550A1

公开(公告)日：2022-01-13

申请号：US17230190

申请日：2021-04-14

申请人： ASHTECH INDUSTRIES, LLC

发明人： Michael D. KIPP ,  Dilworth L. PUGH ,  Michael D. RIDGES ,  William T. McCARVILL

IPC分类号： E04B1/90 ,  C04B28/26 ,  C08G18/10 ,  C08L75/04 ,  E04C2/04 ,  B32B3/26 ,  B32B3/30 ,  B32B5/16 ,  E04C2/288 ,  C04B14/02 ,  C04B14/24 ,  C04B18/08 ,  C04B20/00 ,  C04B22/06 ,  C04B22/12 ,  C04B24/26 ,  C04B24/28 ,  C04B38/08 ,  C08G18/38

摘要： A composition, utility material, and method of making a utility material is disclosed. A composition having an improved setting time may include a plurality of microparticles mixed with a sodium silicate binder and an isocyanate setting agent, where the microparticle composition has a setting time of less than or equal to one hour. A utility material may be a wallboard that includes the composition.

公开(公告)号：US11021394B2

公开(公告)日：2021-06-01

申请号：US16350326

申请日：2018-11-05

申请人： Pascale Industries, Inc.

发明人： Michael A. Riley

IPC分类号： C04B20/00 ,  C04B7/02 ,  C04B20/10 ,  C04B14/02 ,  C04B14/04 ,  C04B18/08 ,  C04B111/00

摘要： Fibers to be added to concrete to improve its properties are coated with an alkali-insoluble polymer, to provide adhesion of the fibers to the concrete. In a further improvement, nanoparticles are dispersed in an alkali-soluble polymer coating, and this is used to coat the fibers. When the fibers are mixed into the concrete mix, the nanoparticles are dispersed throughout the concrete, avoiding problems from agglomeration of the nanoparticles if simply added to the concrete mix.

公开(公告)号：US20210079287A1

公开(公告)日：2021-03-18

申请号：US16570783

申请日：2019-09-13

申请人： Saudi Arabian Oil Company

发明人： Simone Musso ,  Ashok Santra

IPC分类号： C09K8/467 ,  C04B28/02 ,  C04B14/38 ,  C04B14/48 ,  C04B14/02 ,  C04B22/06 ,  C04B22/04 ,  E21B33/14 ,  E21B47/00 ,  E21B36/04

摘要： A method of sealing propagating cracks in a sensor-laden cement sheath comprising the steps of monitoring an electrical resistivity of the sensor-laden cement sheath to produce a measured value, wherein the sensor-laden cement sheath comprises a conductive sensor, an on-demand expanding agent, and a cement, activating a heat source when the measured value of the electrical resistivity is greater than an activation threshold, increasing a temperature of the sensor-laden cement sheath with the heat source to an activation temperature, wherein the activation temperature is operable to initiate a reaction between the on-demand expanding agent and water, wherein the activation temperature is greater than a formation temperature, reacting the on-demand expanding agent with water to produce a swelled agent, wherein the swelled agent occupies a greater volume than the on-demand expanding agent, and sealing the propagating cracks in the sensor-laden cement sheath with the swelled agent.

公开(公告)号：US20210071063A1

公开(公告)日：2021-03-11

申请号：US16957483

申请日：2018-08-24

申请人： HALLIBURTON ENERGY SERVICES, INC.

发明人： Shantel STONE

IPC分类号： C09K8/467 ,  C04B28/00 ,  C04B14/02 ,  E21B33/14

摘要： Grout fluids, methods of preparing the grout fluids, and methods of using the grout fluids are provided. The methods of preparing the grout fluids include providing a thermally conductive material in a plurality of particle sizes, formulating a grout fluid including each particle size of the plurality of particle sizes of the thermally conductive material, determining permeability for each formulated grout fluid, identifying a particle size range of the thermally conductive material that provides a permeability of less than 1×10−7 cm/s as measured by ASTM procedure D5084, and preparing a grout fluid including the thermally conductive material having the identified particle size range.

公开(公告)号：US10935333B2

公开(公告)日：2021-03-02

申请号：US15658724

申请日：2017-07-25

申请人： Generative Technology Operatives, LLC

发明人： Brett P. Guarrero

IPC分类号： F28F21/04 ,  H01B1/18 ,  G21F1/04 ,  A47J36/02 ,  E01C11/00 ,  C09K5/06 ,  C09K5/04 ,  C04B28/00 ,  C04B14/02 ,  C09K5/14 ,  E01C5/06 ,  E01C11/26 ,  E01C7/14 ,  E04B5/48 ,  C04B28/02 ,  A47C5/00 ,  E01C9/00 ,  E04H5/08 ,  E01D19/12 ,  E04B2/84 ,  E04B5/32 ,  E02D27/02 ,  A63C19/00 ,  F16F1/36 ,  C04B111/20 ,  C04B111/00 ,  C04B111/60 ,  C04B111/94 ,  C04B111/52

摘要： The present invention provides a bidirectional energy-transfer system comprising: a thermally and/or electrically conductive concrete, disposed in a structural object; a location of energy supply or demand that is physically isolated from, but in thermodynamic and/or electromagnetic communication with, the thermally and/or electrically conductive concrete; and a means of transferring energy between the structural object and the location of energy supply or demand. The system can be a single node in a neural network. The thermally and/or electrically conductive concrete includes a conductive, shock-absorbing material, such as graphite. Preferred compositions are disclosed for the thermally and/or electrically conductive concrete. The bidirectional energy-transfer system may be present in a solar-energy collection system, a grade beam, an indoor radiant flooring system, a structural wall or ceiling, a bridge, a roadway, a driveway, a parking lot, a commercial aviation runway, a military runway, a grain silo, or pavers, for example.