Patents by Inventor Abdelghafour Ait Alaiwa

Abdelghafour Ait Alaiwa 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).

  • Structural lightweight concrete or mortar, method for manufacturing same and use thereof as self-placing concrete
    Patent number: 9353008
    Abstract: Disclosed is a structural lightweight concrete or mortar composition which, in the fresh state, includes an hydraulic binder, aggregate, and water, characterized in that the composition includes: an hydraulic binder content including cement and optional additions, which is greater than or equal to 280 kg/m3 of fresh concrete, coarse aggregate and/or fine aggregate, a volume proportion of at least 70% of the fine and/or coarse aggregate consisting of fine and/or coarse lightweight particles, the actual dry density of which is between 800 and 1,600 kg/m3, the total amount of aggregate being greater than or equal to 500 L/m3 of fresh concrete, a superplasticizer, at least one thickening agent, and effective water in an effective water/hydraulic binder weight ratio of between 0.40 and 0.65. The composition can be used for producing a self-placing lightweight concrete.
    Type: Grant
    Filed: November 30, 2012
    Date of Patent: May 31, 2016
    Assignee: CIMENTS FRANCAIS
    Inventors: Melanie Shink, Abdelghafour Ait Alaiwa
  • STRUCTURAL LIGHTWEIGHT CONCRETE OR MORTAR, METHOD FOR MANUFACTURING SAME AND USE THEREOF AS SELF-PLACING CONCRETE
    Publication number: 20140336305
    Abstract: Disclosed is a structural lightweight concrete or mortar composition which, in the fresh state, includes an hydraulic binder, aggregate, and water, characterized in that the composition includes: an hydraulic binder content including cement and optional additions, which is greater than or equal to 280 kg/m3 of fresh concrete, coarse aggregate and/or fine aggregate, a volume proportion of at least 70% of the fine and/or coarse aggregate consisting of fine and/or coarse lightweight particles, the actual dry density of which is between 800 and 1,600 kg/m3, the total amount of aggregate being greater than or equal to 500 L/m3 of fresh concrete, a superplasticizer, at least one thickening agent, and effective water in an effective water/hydraulic binder weight ratio of between 0.40 and 0.65. The composition can be used for producing a self-placing lightweight concrete.
    Type: Application
    Filed: November 30, 2012
    Publication date: November 13, 2014
    Applicant: CIMENTS FRANCAIS
    Inventors: Melanie Shink, Abdelghafour Ait Alaiwa