Patents by Inventor Ronghua CHANG

Ronghua CHANG 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).

  • Latex cement mortar poured anti-rutting pavement structure and paving method thereof
    Patent number: 9957671
    Abstract: An anti-rutting pavement structure is arranged consecutively from bottom to top, a semi-rigid base layer, a SBS emulsified asphalt adhesive layer, a Type II latex cement mortar poured asphalt concrete lower layer, a Type I latex cement mortar poured asphalt concrete middle layer and a high viscosity modified asphalt SMA-13 concrete surface layer.
    Type: Grant
    Filed: January 19, 2017
    Date of Patent: May 1, 2018
    Assignees: RESEACH INSTITUTE OF HIGHWAY MINISTRY OF TRANSPORT, CHONGQING CONSTRUCTION ENGINEERING GROUP CORPORATION LIMITED
    Inventors: Ke Zhong, Yifei Wu, Sang Luo, Bo Chen, Guoqiang Liu, Xiaochen Ma, Jing Ding, Chengyong Hu, Guanghua Yue, Ronghua Chang
  • LATEX CEMENT MORTAR POURED ANTI-RUTTING PAVEMENT STRUCTURE AND PAVING METHOD THEREOF
    Publication number: 20180044862
    Abstract: An anti-rutting pavement structure, which is characterized in that it comprises, arranged consecutively from bottom to top, a semi-rigid base layer, a SBS emulsified asphalt adhesive layer, a Type II latex cement mortar poured asphalt concrete lower layer, a Type I latex cement mortar poured asphalt concrete middle layer and a high viscosity modified asphalt SMA-13 concrete surface layer. Compared with prior art, the present invention has improved great contributions of the middle and lower layer of the semi-rigid base layer pavement for rutting under high temperatures and heavy loads, while the pavement having a good crack-resistance, improvement for coordination of the overall deformation of the surface layer and the base layer, and a short construction conservation period, short time before traffic opening, excellent economic performance.
    Type: Application
    Filed: January 19, 2017
    Publication date: February 15, 2018
    Inventors: Ke ZHONG, Yifei WU, Sang LUO, Bo CHEN, Guoqiang LIU, Xiaochen MA, Jing DING, Chengyong HU, Guanghua YUE, Ronghua CHANG