Patents by Inventor Xiaojiao GAO

Xiaojiao GAO 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).

  • Low-calcium silicate cement and preparation and hardening methods thereof
    Patent number: 10058874
    Abstract: A low-calcium silicate cement consists of calcium oxide, silica, alumina, and iron oxide. A preparation method of the low-calcium silicate cement consists of: subjecting raw materials to crushing, joint grinding and uniform mixing to obtain a low-calcium silicate cement raw meal; calcining the above low-calcium silicate cement raw meal at 1050-1300° C. for 30-90 min, and cooling to obtain low-calcium silicate cement clinker; and levigating the above low-calcium silicate cement clinker till a specific surface area is 400-500 m2/Kg, thereby obtaining a low-calcium silicate cement.
    Type: Grant
    Filed: September 25, 2015
    Date of Patent: August 28, 2018
    Assignee: YANCHENG INSTITUTE OF TECHNOLOGY
    Inventors: Guihua Hou, Bao Lu, Xiaojiao Gao, Qinfang Zhang, Yuebin Cao, Entian Cui, Zetian Tao, Ruiyu Jiang, Feng Zhang
  • LOW-CALCIUM SILICATE CEMENT AND PREPARATION AND HARDENING METHODS THEREOF
    Publication number: 20180111875
    Abstract: A low-calcium silicate cement, comprising: based on the total mass of oxides as 1, 50-60% of calcium oxide, 30-45% of silica, 2-6% of alumina, and 1-4% of iron oxide. A preparation method of the low-calcium silicate cement comprises: subjecting raw materials to crushing, joint grinding and uniform mixing to obtain a low-calcium silicate cement raw meal; calcining the above low-calcium silicate cement raw meal at 1050-1300° C. for 30-90 min, and cooling to obtain low-calcium silicate cement clinker; and levigating the above low-calcium silicate cement clinker till a specific surface area is 400-500 m2/Kg, thereby obtaining a low-calcium silicate cement.
    Type: Application
    Filed: September 25, 2015
    Publication date: April 26, 2018
    Inventors: Guihua HOU, Bao LU, Xiaojiao GAO, Qinfang ZHANG, Yuebin CAO, Entian CUI, Zetian TAO, Ruiyu JIANG, Feng ZHANG