Patents Assigned to KOREA ROAD TECHNOLOGY CO., LTD.
  • Patent number: 10392509
    Abstract: A high-grade asphalt composition includes 100 parts by weight of asphalt; 40-80 parts by weight of styrene-isoprene-styrene; 20-60 parts by weight of a polymer resin; 10-50 parts by weight of an anti-rutting agent; 2-15 parts by weight of a filler; 5-30 parts by weight of ceramic nanoparticles; 5-10 parts by weight of a binder; 3-15 parts by weight of an antioxidant; 1-10 parts by weight of a stabilizer; 5-20 parts by weight of a fiber; and 2-20 parts by weight of an adhesion promoter. A construction method is provided using the asphalt composition. The present asphalt composition is not easily rutted, aged and/or stripped. At the same time, the present asphalt can prevent water penetration and potholes, can reduce noise, and enable the roads to be paved at low costs.
    Type: Grant
    Filed: January 26, 2017
    Date of Patent: August 27, 2019
    Assignee: KOREA ROAD TECHNOLOGY CO., LTD.
    Inventor: In Joong Kim
  • Patent number: 10150870
    Abstract: A high-grade mastic asphalt composition includes by weight: 100 parts of a natural asphalt mix; 5 to 40 parts of styrene isoprene styrene; 10 to 60 parts of at least one polymer resin; 10 to 1,000 parts of an aggregate; 1 to 20 parts of a thermosensitive reinforcing agent; 10 to 60 parts of a filler; 10 to 40 parts of a nanoceramic particle; 1 to 15 parts of a surfactant; 0.1 to 5 parts of an antioxidant; 0.5 to 5 parts of a stabilizer; 0.5 to 10 parts of a performance enhancer; 2 to 20 parts by weight of a fiber; 10 to 50 parts of a cohesive resin; 2 to 10 parts of an antisagging agent; and 1 to 5 parts of a compatibilizer. The consolute high-grade mastic asphalt composition has a high pavement performance and makes its conveyance and paving construction easier without using a cooker.
    Type: Grant
    Filed: July 28, 2017
    Date of Patent: December 11, 2018
    Assignee: KOREA ROAD TECHNOLOGY CO., LTD.
    Inventor: In Joong Kim