Accession Number : AD0715992

Title :   Effect of Fire-Retardant Treatment on Bending Strength of Wood.

Descriptive Note : Forest Service research paper,

Corporate Author : FOREST PRODUCTS LAB MADISON WIS

Personal Author(s) : Gerhards,C. C.

Report Date : DEC 1970

Pagination or Media Count : 12

Abstract : Since fire-retardant-treated wood is gaining more acceptance year by year, it is desirable that its strength properties be known, particularly for structural applications. The paper summarizes the results of several studies conducted at the Forest Products Laboratory and elsewhere on the bending properties of air-dried and kiln-dried fire-retardant-treated wood. Collectively the studies indicate that modulus of rupture and work to maximum load in bending were reduced by varying amounts depending on species and type of fire retardant. In general, the reductions are consistent with the 10 percent reduction in design stresses recommended for fire-retardant-treated lumber. (Author)

Descriptors :   (*WOOD, BENDING), (*FIRE RESISTANT MATERIALS, WOOD), FLEXURAL STRENGTH, SPECIFICATIONS, MODULUS OF ELASTICITY, RUPTURE, LOADS(FORCES), PLYWOOD, BEAMS(STRUCTURAL), TABLES(DATA)

Subject Categories : Wood, Paper and Related Forestry Products

Distribution Statement : APPROVED FOR PUBLIC RELEASE