Effect of vibrations on the density of loose-fill insulations

Technical Report · Fri May 01 00:00:00 EDT 1981

DOI:https://doi.org/10.2172/6594938· OSTI ID:6594938

Yarbrough, D. W.; Wright, J. H.

Testing results of the three major loose-fill insulation products marketed in this country subjected to a variety of vibrations and impacts in a laboratory setting to determine the magnitude of the resultant density increases, are presented. Results show repeated drops of 19 mm (.75 inch) and 152 mm (6 inch) produced density increases of up to 75% for fiberglass, 45% for rock wool, and 27% for cellulosic materials. The three insulation products were also subjected to vibrations ranging from 0.1 mm (.004 inch) to 6.35 mm (.25 inch) to obtain ratios of final density over initial density. Under the test conditions studied it was observed that the lighter materials settled more percentagewise than the dense materials.

• Research Organization: Tennessee Technological Univ., Cookeville (USA). Dept. of Chemical Engineering
• DOE Contract Number: W-7405-ENG-26
• OSTI ID: 6594938
• Report Number(s): ORNL/Sub-7715/3
• Country of Publication: United States
• Language: English

Related Subjects

32 ENERGY CONSERVATION, CONSUMPTION, AND UTILIZATION
CELLULOSE
COMPACTING
DENSITY
IMPACT SHOCK
FIBERGLASS
MINERAL WOOL
EXPERIMENTAL DATA
MECHANICAL VIBRATIONS
PERFORMANCE TESTING
THERMAL INSULATION
THICKNESS
CARBOHYDRATES
DATA
DIMENSIONS
INFORMATION
NUMERICAL DATA
ORGANIC COMPOUNDS
PHYSICAL PROPERTIES
POLYSACCHARIDES
SACCHARIDES
TESTING
320100* - Energy Conservation
Consumption
& Utilization- Buildings