Patents Assigned to HConnect 2 GmbH
  • Publication number: 20240425411
    Abstract: A method for manufacturing a supplementary cementitious material has improved reactivity from waste concrete, wherein a starting material including waste concrete is provided, subjected to carbonation to provide a carbonated product having a carbonation degree of at least 50%, and the carbonated product is heat treated at a temperature ranging from 120 to 350° C. until constant mass to provide the supplementary cementitious material with improved reactivity. The obtained supplementary cementitious material can be used to manufacture composite cements.
    Type: Application
    Filed: September 8, 2022
    Publication date: December 26, 2024
    Applicant: HConnect 2 GmbH
    Inventors: Maciej ZAJAC, Jan SKOCEK
  • Publication number: 20240383807
    Abstract: A method for sequestering carbon dioxide includes providing a starting material having calcium ions, sulfate and/or sulfite ions, and alkali metal ions with a molar ratio ? Alk:? SO3>2.00, reacting the starting material with carbon dioxide at a pressure in the range from ambient up to 3.5 bar overpressure and/or a temperature in the range from 10 to 145° C. to obtain a carbonated product comprising calcium carbonate and alkali sulfate. The obtained product is used as a set regulator or accelerator for cement and/or as a minor or main cement component.
    Type: Application
    Filed: February 3, 2022
    Publication date: November 21, 2024
    Applicants: HConnect 2 GmbH, HEIDELBERGCEMENT AG
    Inventors: Maciej ZAJAC, Jan SKOCEK, Gerd BOLTE, Mohsen BEN HAHA
  • Publication number: 20240376004
    Abstract: Composition comprising a polyphosphate, an amine and an inorganic sulfate compound for enhancing the workability and/or the strength development of hydraulic binders comprising a cement and a high water demand supplementary cementitious material and/or a high water demand filler.
    Type: Application
    Filed: June 28, 2022
    Publication date: November 14, 2024
    Applicant: HConnect 2 GmbH
    Inventors: Mohsen BEN HAHA, Arnaud MULLER, Maciej ZAJAC
  • Publication number: 20240351947
    Abstract: A method for producing a supplementary cementitious material from concrete waste and similar materials includes the steps of i) providing a starting material comprising hydrated cement and aggregate comprising silicate and/or alumino-silicate, ii) hydrothermal treatment of the starting material provided in step i) to obtain a hydrothermally activated material, and iii) carbonation of the hydrothermally activated material of step ii) to provide the supplementary cementitious material, as well as supplementary cementitious material obtainable by the method, hydraulic binder comprising the supplementary cementitious material and use of the supplementary cementitious material and of the hydraulic binder for making hydraulic building materials.
    Type: Application
    Filed: May 4, 2022
    Publication date: October 24, 2024
    Applicant: HConnect 2 GmbH
    Inventors: Maciej ZAJAC, Jan SKOCEK, Frank BULLERJAHN, Gerd BOLTE
  • Publication number: 20240262743
    Abstract: A method for separating hydrated concrete paste from aggregate includes the steps of providing a feedstock comprising waste concrete with a D10?0.1 mm and a D90?100 mm, passing the feedstock, a water containing liquid and carbon dioxide into a fragmentation vessel, where the wet feedstock is subjected to electric-pulse fragmentation, withdrawing fragmented solid material from the fragmentation vessel, separating the fragmented solid material from admixed liquid phase, separating the fragmented solid material into a fine fraction with a maximum particle size of 250 ?m to provide the carbonated recycled concrete paste and a coarse fraction, recycling the coarse fraction into the fragmentation vessel and/or discharging the coarse fraction as clean aggregate, use of the recycled concrete paste obtained thereby as supplementary cementitious material or filler.
    Type: Application
    Filed: July 22, 2022
    Publication date: August 8, 2024
    Applicant: HConnect 2 GmbH
    Inventors: Nicolas PATO, Maciej ZAJAC, Jan SKOCEK, Eckhard WAGNER
  • Patent number: 11970422
    Abstract: Composite cement with improved reactivity and improved fresh properties comprising a hydraulic cement or a caustic activator, a hyaloclastite as pozzolan containing 45-62 wt.-% SiO2, 10-20 wt. % Al2O3, 6-15 wt.-% Fe2O3, 7-15 wt.-% CaO, 7-15 wt.-% MgO, 1.5-4 wt. % (K2O+Na2O), and having 0-5 wt.-% loss on ignition at 950° C. and ?50 wt.-% X-ray amorphous phase, and a carbonate filler with an at least bimodal particle size distribution adapted to provide a slope n in a Rosin-Rammler-Sperling-Bennett distribution curve of ?1.15 in a particle size distribution of the composite cement; a method for manufacturing it, as well as use of a composition comprising the hyaloclastite as pozzolan and the carbonate filler as mineral addition for composite cements comprising a hydraulic cement or a caustic activator.
    Type: Grant
    Filed: April 25, 2022
    Date of Patent: April 30, 2024
    Assignee: HCONNECT 2 GMBH
    Inventors: Frank Bullerjahn, Sigum Kjaer Bremseth, Kjell Skjeggerud, Wolfgang Dienemann
  • Publication number: 20240067565
    Abstract: A method for converting a starting material containing at least 40 wt.-% of calcium silicon (hydr)oxide phases and calcium aluminum (hydr)oxide phases into an SiO2 rich SCM and a calcium carbonate additive includes the steps: providing the starting material with a D90 of ?1 mm, mixing the starting material with water or adjusting the water content to provide a starting material slurry having a solid:liquid weight ratio from 2:1 to 1:100, passing the starting material slurry together with carbon dioxide into a gravity separation reactor, subjecting the starting material slurry and carbon dioxide to centrifugal motion inside the reactor, and removing a heavy slurry from a first outlet of the reactor, removing a light slurry of lower density particles from a second outlet of the reactor, and removing liquid at a third outlet of the reactor.
    Type: Application
    Filed: March 2, 2022
    Publication date: February 29, 2024
    Applicant: HConnect 2 GmbH
    Inventors: Maciej ZAJAC, Nicolas PATO, Jan SKOCEK
  • Publication number: 20240010560
    Abstract: A method for manufacturing a composite cement comprising a cement and calcined clay has the steps of providing the cement, providing calcined clay by grinding a material comprising clay compounds and at least one of quartz and/or feldspar, separating the clay compounds from quartz and/or feldspar by classification and calcination of the clay compounds to provide the calcined clay, and mixing the cement with the calcined clay to provide the composite cement.
    Type: Application
    Filed: November 3, 2021
    Publication date: January 11, 2024
    Applicant: HConnect 2 GmbH
    Inventors: Nicolas PATO, Arnaud MULLER, Mohsen BEN HAHA, Gerd BOLTE
  • Patent number: 11820712
    Abstract: Electrically conductive binder comprising a cement, a sterically stabilizing superplasticizer, a rheology modifier, graphite particles with carbon content higher than 60%, and graphene; cementitious mixture comprising the binder, and heatable building elements, preferably underfloor heating layers and/or heating panels and/or heating layers close to a wall, as well as floors with underfloor heating systems comprising a layer from the binder.
    Type: Grant
    Filed: December 7, 2020
    Date of Patent: November 21, 2023
    Assignee: HCONNECT 2 GMBH
    Inventors: Marcello Antonio Molfetta, Marco Goisis
  • Publication number: 20230357084
    Abstract: A method for manufacturing concrete parts has the steps of: providing a hydraulic cement and aggregate; mixing the cement and aggregate with water to provide a fresh concrete; introducing CO2 into the fresh concrete in an amount resulting in a carbonation degree of more than 0.5 wt.-% and less than 5 wt.-% of the total carbonatable Ca and Mg phases for a first carbonation step; curing the fresh concrete until at least 15 wt.-% of the calcium aluminates are hydrated to provide a green concrete part; subjecting the green concrete part to CO2 in an amount resulting in a carbonation degree of more than 10 wt.-% of the total carbonatable Ca and Mg phases for a final carbonation step; and storing the part for 0.5 hours to 28 days for further hydration of not-yet carbonated, not-yet hydrated cement to provide the concrete part. and concrete parts obtainable with the method.
    Type: Application
    Filed: July 28, 2021
    Publication date: November 9, 2023
    Applicant: HConnect 2 GmbH
    Inventors: Maciej ZAJAC, Jan SKOCEK, Mohsen BEN HAHA
  • Publication number: 20230348330
    Abstract: The present invention relates to a supplementary cementitious material, a method for producing the supplementary cementitious material, the use of the supplementary cementitious material, a binder comprising the supplementary cementitious material, a method for the preparation of the binder and use of the binder to make hydraulic building materials like concrete.
    Type: Application
    Filed: October 4, 2021
    Publication date: November 2, 2023
    Applicant: HConnect 2 GmbH
    Inventors: Mohsen BEN HAHA, Gerd BOLTE, Frank BULLERJAHN, Wolfgang DIENEMANN, Jan SKOCEK, Maciej ZAJAC
  • Patent number: 11753340
    Abstract: A method for manufacturing supplementary cementitious material and sequestering CO2 by carbonating concrete fines has the following steps: grinding the concrete fines obtained from crushed concrete demolition waste in a mill at a temperature from 1 to 10° C. above the water dew point in a carbonating atmosphere provided by a gas containing from 10 to 99 Vol.-% CO2, circulating the ground and partially carbonated concrete fines in a fluidized bed reactor in contact with the carbonating atmosphere, and withdrawing decarbonated gas and carbonated concrete fines.
    Type: Grant
    Filed: May 25, 2020
    Date of Patent: September 12, 2023
    Assignee: HConnect 2 GmbH
    Inventors: Jan Skocek, Maciej Zajac, Mohsen Ben Haha, Stefan Federhen, Marek Majchrowicz
  • Patent number: 11642625
    Abstract: A method of exhaust gas scrubbing includes providing recycled concrete fines as a waste material rich in carbonatable Ca and/or Mg phases and with d90?1000 ?m and a Rosin-Rammler slope n from 0.6 to 1.4 , injecting the waste material into an exhaust gas stream containing CO2 and/or SOx for reaction with CO2 and/or SOx at a relative humidity of 50 to 100 Vol.-% and a temperature from 40 to 130° C. in an amount of dry waste material ranging from 5 to 30 kg/m3, withdrawing a partly carbonated and/or sulphurized waste material and purified exhaust gas, and recycling a part of the partly carbonated and sulphurized waste material while the remainder is discharged, as well as use of a waste material slurry for exhaust gas cleaning of CO2 and/or SOx.
    Type: Grant
    Filed: June 4, 2020
    Date of Patent: May 9, 2023
    Assignee: HConnect 2 GmbH
    Inventors: Jan Skocek, Maciej Zajac, Mohsen Ben Haha, Stefan Federhen
  • Publication number: 20230036356
    Abstract: A method for manufacturing hydraulically hardening building materials, includes the steps of: providing concrete demolition waste with a maximum particle size of up to 150 mm as a starting material, mixing the starting material with water to form a feedstock slurry, introducing carbon dioxide or a precursor thereof into the feedstock slurry to form carbonated concrete fines in an amount from 1 to 100 wt.-% of the hardened binder contained in the starting material and to detach the concrete fines from the aggregate contained in the starting material to form a product slurry, and mixing the product slurry with a cement forming the building material, and use of the obtainable building material for manufacturing building structures as well as method for manufacturing a supplementary cementitious material slurry.
    Type: Application
    Filed: October 8, 2020
    Publication date: February 2, 2023
    Applicant: HConnect 2 GmbH
    Inventors: Jan SKOCEK, Maciej ZAJAC, Wolfgang DIENEMANN, Mohsen BEN HAHA
  • Publication number: 20220340488
    Abstract: Composite cement with improved reactivity and improved fresh properties comprising a hydraulic cement or a caustic activator, a hyaloclastite as pozzolan containing 45-62 wt.-% SiO2, 10-20 wt.% Al2O3, 6-15 wt.-% Fe2O3, 7-15 wt.-% CaO, 7-15 wt.-% MgO, 1.5-4 wt.% (K2O+Na2O), and having 0-5 wt.-% loss on ignition at 950° C. and ?50 wt.-% X-ray amorphous phase, and a carbonate filler with an at least bimodal particle size distribution adapted to provide a slope n in a Rosin-Rammler-Sperling-Bennett distribution curve of ?1.15 in a particle size distribution of the composite cement; a method for manufacturing it, as well as use of a composition comprising the hyaloclastite as pozzolan and the carbonate filler as mineral addition for composite cements comprising a hydraulic cement or a caustic activator.
    Type: Application
    Filed: April 25, 2022
    Publication date: October 27, 2022
    Applicant: HConnect 2 GmbH
    Inventors: Frank BULLERJAHN, Sigum Kjaer BREMSETH, Kjell SKJEGGERUD, Wolfgang DIENEMANN
  • Patent number: 11384017
    Abstract: A method for manufacturing a binder of a hydratable material includes providing a starting material from one or more raw materials convertible by tempering at 600 to 1200° C. into the hydratable material, tempering the starting material to provide the hydratable material containing not more than 10% by weight monocalcium silicate and at least 15% by weight hydratable phases in the form of lime and dicalcium silicate, wherein the residence time and the tempering temperature are adapted to obtain the hydratable material by converting not more than 80% by weight of the starting material, and cooling the hydratable material to provide the binder comprising the hydratable material. The binder can be mixed with water and optionally one or more of aggregate, additives, admixtures to obtain a binder paste that is placed, hydrated and carbonated to produce a building product.
    Type: Grant
    Filed: October 2, 2018
    Date of Patent: July 12, 2022
    Assignee: HConnect 2 GmbH
    Inventors: Jan Skocek, Maciej Zajac, Gerd Bolte, Mohsen Ben Haha
  • Publication number: 20220212992
    Abstract: A method for manufacturing supplementary cementitious material and sequestering CO2 by carbonating concrete fines has the following steps: grinding the concrete fines obtained from crushed concrete demolition waste in a mill at a temperature from 1 to 10° C. above the water dew point in a carbonating atmosphere provided by a gas containing from 10 to 99 Vol.-% CO2, circulating the ground and partially carbonated concrete fines in a fluidized bed reactor in contact with the carbonating atmosphere, and withdrawing decarbonated gas and carbonated concrete fines.
    Type: Application
    Filed: May 25, 2020
    Publication date: July 7, 2022
    Applicant: HConnect 2 GmbH
    Inventors: Jan SKOCEK, Maciej ZAJAC, Mohsen BEN HAHA, Stefan FEDERHEN, Marek MAJCHROWICZ
  • Publication number: 20220152554
    Abstract: A method of exhaust gas scrubbing includes providing recycled concrete fines as a waste material rich in carbonatable Ca and/or Mg phases and with d90?1000 ?m and a Rosin-Rammler slope n from 0.6 to 1.4 , injecting the waste material into an exhaust gas stream containing CO2 and/or SOx for reaction with CO2 and/or SOx at a relative humidity of 50 to 100 Vol.-% and a temperature from 40 to 130° C. in an amount of dry waste material ranging from 5 to 30 kg/m3, withdrawing a partly carbonated and/or sulphurized waste material and purified exhaust gas, and recycling a part of the partly carbonated and sulphurized waste material while the remainder is discharged, as well as use of a waste material slurry for exhaust gas cleaning of CO2 and/or SOx.
    Type: Application
    Filed: June 4, 2020
    Publication date: May 19, 2022
    Applicant: HConnect 2 GmbH
    Inventors: Jan SKOCEK, Maciej ZAJAC, Mohsen BEN HAHA, Stefan FEDERHEN
  • Patent number: 11208350
    Abstract: A method for manufacturing a binder of a hydratable material includes providing a starting material from one or more raw materials convertible by tempering at 600 to 1200° C. into the hydratable material and tempering the starting material to provide the hydratable material containing not more than 10% by weight monocalcium silicate and at least 15% by weight hydratable phases in the form of lime and dicalcium silicate. The residence time and the tempering temperature are adapted to obtain the hydratable material by converting not more than 80% by weight of the starting material, and the hydratable material is then cooled to provide the binder comprising the hydratable material. The binder can be mixed with water and optionally one or more of aggregate, additives, admixtures to obtain a binder paste that is placed, hydrated and carbonated to produce a building product.
    Type: Grant
    Filed: December 13, 2018
    Date of Patent: December 28, 2021
    Assignee: HConnect 2 GmbH
    Inventors: Jan Skocek, Maciej Zajac, Mohsen Ben Haha, Gerd Bolte
  • Patent number: 11111177
    Abstract: The present invention relates to a method for manufacturing a binder with high ? belite content comprising the steps: a) providing a starting material by selecting one raw material having a Ca/Si molar ratio of 1.5 to 2.5 or by mixing two or more raw materials to obtain a starting material with the Ca/Si molar ratio of 1.5 to 2.5; b) hydrothermal treatment of the starting material produced in step a) in an autoclave at a temperature of 100 to 300° C. and a retention time of 0.1 to 24 h, wherein the water/solids ratio is from 0.1 to 100 to provide an intermediate product; c) annealing the intermediate product obtained in step b) in a flash calciner at 620 to 630° C., wherein the retention time is 1-30 seconds.
    Type: Grant
    Filed: September 12, 2018
    Date of Patent: September 7, 2021
    Assignee: HConnect 2 GmbH
    Inventors: Anca Itul, Mohsen Ben Haha