Patents by Inventor Xuerun Li

Xuerun Li 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).

  • ENVIRONMENTALLY FRIENDLY CONSTRUCTION MATERIAL COMPOSITIONS HAVING IMPROVED EARLY STRENGTH
    Publication number: 20230110621
    Abstract: The present invention relates to construction material compositions comprising at most 55% by dry weight of Portland cement with a high early and late compressive strength. The other main components in the cement are SCMs, limestone, sulfate source and accelerator.
    Type: Application
    Filed: March 15, 2021
    Publication date: April 13, 2023
    Inventors: Xuerun LI, Christoph HESSE, Bernhard MAYR, Julien BIZZOZERO
  • Process for controlling a crystal form of alite in portland cement clinker
    Patent number: 8529690
    Abstract: The present invention relates to a process of controlling crystal form of Alite in Portland cement clinker, wherein the said Portland cement clinker is thermally treated in order to change the crystal form of Alite in Portland cement clinker, so as to improve performance of resulting Portland cement clinker. The said process of present invention is easy and feasible.
    Type: Grant
    Filed: July 15, 2010
    Date of Patent: September 10, 2013
    Assignee: Nanjing University of Technology
    Inventors: Xiaodong Shen, Suhua Ma, Xuerun Li, Lin Chen, Weiqiang Zhou, Song Deng
  • PROCESS FOR CONTROLLING A CRYSTAL FORM OF ALITE IN PORTLAND CEMENT CLINKER
    Publication number: 20130228102
    Abstract: The present invention relates to a process of controlling crystal form of Alite in Portland cement clinker, wherein the said Portland cement clinker is thermally treated in order to change the crystal form of Alite in Portland cement clinker, so as to improve performance of resulting Portland cement clinker. The said process of present invention is easy and feasible.
    Type: Application
    Filed: July 15, 2010
    Publication date: September 5, 2013
    Applicant: Nanjing University of Technology
    Inventors: Xiaodong Shen, Suhua Ma, Xuerun Li, Lin Chen, Weiqiang Zhou, Song Deng
  • Secondary synthetic method for calcium sulphoaluminate mineral in Portland cement clinker
    Patent number: 8404039
    Abstract: A method for secondarily synthesizing calcium sulphoaluminate mineral in Portland cement clinker is provided. The method includes adding gypsum into raw Portland cement, calcination, then heating twice to re-form calcium sulphoaluminate mineral that has decomposed at high temperature in the clinker. This method can increase the content of calcium sulphoaluminate mineral in the clinker. As a result, the advantages of the calcium sulphoaluminate mineral in the clinker may be obtained, such as improvement of the early stage performance and long-term performance of the cement clinker and increase in the quantity of mixture in the cement.
    Type: Grant
    Filed: July 15, 2010
    Date of Patent: March 26, 2013
    Assignee: Nanjing University of Technology
    Inventors: Xiaodong Shen, Suhua Ma, Xuerun Li, Lin Chen, Weiqiang Zhou, Song Deng
  • SECONDARY SYNTHETIC METHOD FOR CALCIUM SULPHOALUMINATE MINERAL IN PORTLAND CEMENT CLINKER
    Publication number: 20120285350
    Abstract: A method for secondarily synthesizing calcium sulphoaluminate mineral in Portland cement clinker is provided. The method includes adding gypsum into raw Portland cement, calcination, then heating twice to re-form calcium sulphoaluminate mineral that has decomposed at high temperature in the clinker. This method can increase the content of calcium sulphoaluminate mineral in the clinker. As a result, the advantages of the calcium sulphoaluminate mineral in the clinker may be obtained, such as improvement of the early stage performance and long-term performance of the cement clinker and increase in the quantity of mixture in the cement.
    Type: Application
    Filed: July 15, 2010
    Publication date: November 15, 2012
    Applicant: Nanjing University of Technology
    Inventors: Xiaodong Shen, Suhua Ma, Xuerun Li, Lin Chen, Weiqiang Zhou, Song Deng