Accession Number : ADA305150

Title :   Evaluating Rigid Foams for Construction and Repairing Mine Stoppings.

Descriptive Note : Contract rept. Dec 79-Aug 83,

Corporate Author : MSA RESEARCH CORP EVANS CITY PA

Personal Author(s) : Marshall, M. D.

PDF Url : ADA305150

Report Date : OCT 1984

Pagination or Media Count : 152

Abstract : Twenty-seven commercially available rigid foam materials were tested to delineate those most suitable for use as a sealant in underground mine stoppings. The rigid foam industry was surveyed for possible candidates based on published properties, cost, and application equipment. Using a process that recognized those properties of rigid foams that were important for use as mine stopping materials, laboratory tests reduced the initial listing to two. Flammability, air permeability, and mode of application comparisons played major roles in the selection process, with adhesion and cost comparisons being minor factors. Standard ASTM tests were employed where applicable. (MM)

Descriptors :   *MINING ENGINEERING, *SEALING COMPOUNDS, *FIRE RESISTANT MATERIALS, *FOAM, PERMEABILITY, AGING(MATERIALS), ADHESION, VENTILATION, SUBSTRATES, STRENGTH(MECHANICS), COMBUSTION, DUST, POLYMERIC FILMS, SAFETY, METHANE, IMMERSION, SILICONES, FLAMMABILITY, UNDERGROUND, PHENOLIC PLASTICS, FIRE SAFETY.

Subject Categories : Mining Engineering
      Plastics
      Safety Engineering

Distribution Statement : APPROVED FOR PUBLIC RELEASE