OPTIMUM SAND AND EPOXY RESIN MIXTURES

Description and analysis is presented of the data obtained in a laboratory investigation of the effect of varying the amount of sand in sand-filled epoxy-resin systems on physical properties of such systems. Physical properties considered include flowability, coefficient of linear expansion, flexural modulus of elasticity and ultimate flexural strength, compressive modulus of elasticity and ultimate compressive strength, and resistance to detergents. It is concluded that in crack filling it is desirable that the mix have a high ratio of sand to epoxy resin liquid by volume. The coefficient of linear expansion is found to decrease as the ratio of sand to epoxy resin increases. The flexural modulus of elasticity increases with an increase in the mix ratio, varying from 455,000 psi for an unfilled system to 1.157,000 psi for a 3:1 mix. The compressive modulus of elasticity increases with an increase in the mix, varying from 367,000 psi for an unfilled system to 628,000 psi for a 3:1 mix. After immersion in a detergent solution for one year, no softening or other deteriorating effects are noted on either the filled or unfilled specimens.

• Corporate Authors:

  American Railway Engineering Association

  59 East Van Buren Street
  Chicago, IL  United States  60605
• Publication Date: 1965-10

Media Info

• Features: Figures; Photos; Tables;
• Pagination: p. 43-64
• Serial:
  • AREA BULLETIN
  • Volume: 67 N
  • Issue Number: 594
  • Publisher: American Railway Engineering Association

Subject/Index Terms

• TRT Terms: Compressive strength; Elasticity (Mechanics); Epoxy resins; Linear control systems
• Uncontrolled Terms: Compressive properties
• Old TRIS Terms: Linear control
• Subject Areas: Materials; Railroads;

Filing Info

• Accession Number: 00052283
• Record Type: Publication
• Source Agency: Association of American Railroads
• Report/Paper Numbers: ER-62 Proceeding
• Files: TRIS
• Created Date: Jul 15 1974 12:00AM