Patents by Inventor David Babayan

David Babayan has filed for patents to protect the following inventions. This listing includes patent applications that are pending as well as patents that have already been granted by the United States Patent and Trademark Office (USPTO).

  • Concrete composition
    Patent number: 10669204
    Abstract: A concrete composition having, in a mixture with water, a hydraulic binder, sand, aggregates, an expanding agent and a shrinkage reducing admixture, wherein the expanding agent is calcium oxide having a low reactivity such that the concrete casted using the composition does not expand by more than 0.05 vol. % during the first 10 days, preferably not expanding more than 0.05 vol. % during the first 7 days, after having been cast.
    Type: Grant
    Filed: May 12, 2016
    Date of Patent: June 2, 2020
    Assignee: Holcim Technology Ltd.
    Inventors: Moussa Baalbaki, Bill Gong, David Babayan, Winnie Matthes
  • Concrete composition
    Patent number: 10308554
    Abstract: The concrete composition includes, in a mixture with water, a hydraulic binder, sand and aggregates, wherein the hydraulic binder includes a Portland cement of high reactivity, and the hydraulic binder is present in an amount of 280-340 kg per cubic meter of concrete, a shrinkage reducing admixture is present in an amount of 0-4 L per cubic meter of concrete, and water is present in an amount of 140-160 L per cubic meter of concrete.
    Type: Grant
    Filed: May 18, 2016
    Date of Patent: June 4, 2019
    Assignee: Holcim Technology Ltd.
    Inventors: David Babayan, Moussa Baalbaki, Bill Gong
  • Concrete composition
    Publication number: 20180290926
    Abstract: A concrete composition having, in a mixture with water, a hydraulic binder, sand, aggregates, an expanding agent and a shrinkage reducing admixture, wherein the expanding agent is calcium oxide having a low reactivity such that the concrete casted using the composition does not expand by more than 0.05 vol. % during the first 10 days, preferably not expanding more than 0.05 vol. % during the first 7 days, after having been cast.
    Type: Application
    Filed: May 12, 2016
    Publication date: October 11, 2018
    Inventors: Moussa BAALBAKI, Bill GONG, David BABAYAN, Winnie MATTHES
  • Concrete composition
    Publication number: 20180148375
    Abstract: The concrete composition includes, in a mixture with water, a hydraulic binder, sand and aggregates, wherein the hydraulic binder includes a Portland cement of high reactivity, and the hydraulic binder is present in an amount of 280-340 kg per cubic meter of concrete, a shrinkage reducing admixture is present in an amount of 0-4 L per cubic meter of concrete, and water is present in an amount of 140-160 L per cubic meter of concrete.
    Type: Application
    Filed: May 18, 2016
    Publication date: May 31, 2018
    Inventors: David BABAYAN, Moussa BAALBAKI, Bill GONG
  • Dry cement mixture
    Patent number: 9963390
    Abstract: A dry cement mixture comprises Portland cement and an ultra-fine component consisting of at least one ultra-fine additive, said ultra-fine component being a hydraulic binder, wherein Portland cement is present in an amount of at least 70 wt % of the mixture and the ultra-fine component is present in an amount of at least 5 wt % of the mixture, wherein the ultra-fine component has a particle size distribution characterized by a particle diameter D10 of between 0.5 ?m and 2 ?m and a particle diameter D90 of between 2 ?m and 8 ?m.
    Type: Grant
    Filed: June 23, 2015
    Date of Patent: May 8, 2018
    Assignee: HOLCIM TECHNOLOGY, LTD.
    Inventors: Thomas Hoornaert, Stephane Gonichon, Delphine Vrau, Hubert Mahouche, Moussa Baalbaki, David Babayan
  • Dry Cement Mixture
    Publication number: 20170197883
    Abstract: A dry cement mixture comprises Portland cement and an ultra-fine component consisting of at least one ultra-fine additive, said ultra-fine component being a hydraulic binder, wherein Portland cement is present in an amount of at least 70 wt % of the mixture and the ultra-fine component is present in an amount of at least 5 wt % of the mixture, wherein the ultra-fine component has a particle size distribution characterized by a particle diameter D10 of between 0.5 ?m and 2 ?m and a particle diameter D90 of between 2 ?m and 8 ?m.
    Type: Application
    Filed: June 23, 2015
    Publication date: July 13, 2017
    Inventors: Thomas HOORNAERT, Stephane GONICHON, Delphine VRAU, Hubert MAHOUCHE, Moussa BAALBAKI, David BABAYAN
  • Set-accelerating admixture having improved stability
    Patent number: 9023151
    Abstract: The present invention is mainly aimed at a set-accelerating admixture for hydraulic compositions comprising, in an aqueous solution, the reaction product of an alkanolamine with a concentrated strong acid; sulfate anions; and alkali or alkaline earth cations; having a pH comprised between 5 and 12. Moreover it is directed to a method for its preparation as well as to a method for preparing hydraulic compositions comprising the step for adding such an admixture to the hydraulic binder, before, during or after the grinding.
    Type: Grant
    Filed: February 6, 2013
    Date of Patent: May 5, 2015
    Assignee: Chryso
    Inventors: Bruno Pellerin, David Babayan, Frédéric Rudolph
  • ADJUVANT FOR HYDRAULIC COMPOSITIONS
    Publication number: 20150075409
    Abstract: The invention is mainly directed to an admixture in the form of an aqueous dispersion, comprising: mineral nanoparticles; an accelerator for setting hydraulic compositions; and a dispersant polymer, wherein the pH is comprised between 2 and 11, to a method for its preparation as well as to the preparation of a hydraulic composition as well as to its use for accelerating the setting of hydraulic compositions.
    Type: Application
    Filed: April 5, 2013
    Publication date: March 19, 2015
    Inventors: Sandra Darguy, David Babayan
  • SET-ACCELERATING ADMIXTURE HAVING IMPROVED STABILITY
    Publication number: 20150027347
    Abstract: The present invention is mainly aimed at a set-accelerating admixture for hydraulic compositions comprising, in an aqueous solution: the reaction product of an alkanolamine with a concentrated strong acid; sulfate anions; and alkaline or earth alkaline cations; having a pH comprised between 5 and 12. Moreover it is directed to a method for its preparation as well as to a method for preparing hydraulic compositions comprising the step for adding such an admixture to the hydraulic binder, before, during or after the grinding.
    Type: Application
    Filed: February 6, 2013
    Publication date: January 29, 2015
    Inventors: Bruno Pellerin, David Babayan, Frédéric Rudolph