Accession Number : AD0912603

Title :   Model Determination of Explosion Damage to Concrete Runways (Feasibility Study).

Descriptive Note : Final rept. Feb-Dec 56.

Corporate Author : ARMY ENGINEER WATERWAYS EXPERIMENT STATION VICKSBURG MS

Report Date : NOV 1957

Pagination or Media Count : 64

Abstract : The purpose of this study was primarily to determine the feasibility of scaling the strength characteristics of a concrete structure as well as its linear dimensions for dynamic test conditions. The ultimate purpose of the investigation was to describe qualitatively the type of damage to be expected from a large-scale explosive charge detonated at one end of an airfield concrete runway. Model runways representing three test conditions were constructed. The test slab for condition 1 was constructed of low-strength concrete without joints; for condition 2, of low-strength concrete with joints; and for condition 3, of normal-strength concrete without joints. A 54-lb charge was detonated at each end of the model runways and measurements and observations were made of the transient and permanent effects. Test results indicated that major damage to the model runways was confined to about 1.5 crater radii. The runway with joints sustained the least extensive damage. Attempts to satisfy all of the conditions of similitude for the dynamic case were unsuccessful. No concrete mix was obtained that had the proper compressive strength-tensile strength ratio. (Author)

Descriptors :   (*RUNWAYS, EXPLOSION EFFECTS), (*CONCRETE, DAMAGE ASSESSMENT), JOINTS, LANDING MATS, MODEL TESTS, DETONATIONS, EXPLOSIVE CHARGES, LOADS(FORCES), CRATERING, SHOCK WAVES, CRACK PROPAGATION, STRAIN(MECHANICS), STRAIN GAGES, ACCELEROMETERS, TENSILE PROPERTIES, COMPRESSIVE PROPERTIES, DENSITY, MODULUS OF ELASTICITY, FEASIBILITY STUDIES, .

Subject Categories : Terminal Flight Facilities
      Ceramics, Refractories and Glass
      Explosions

Distribution Statement : APPROVED FOR PUBLIC RELEASE