Accession Number : ADD017258
Title : Split Pipe Testing Device for the Measurement of Bond of Reinforcement Under Controlled Confinement.
Descriptive Note : Patent, Filed 14 Aug 92, patented 5 Jul 94,
Corporate Author : DEPARTMENT OF THE NAVY WASHINGTON DC
Personal Author(s) : Malvar, Javier
Report Date : 05 Jul 1994
Pagination or Media Count : 10
Abstract : This patent discloses a method and apparatus for determining the stress-slip relationship of specimens in concrete including a pipe with a plurality of longitudinal slots evenly spaced around the circumference of the pipe, a specimen and concrete block located in one end of the pipe, a confining device for applying a constant force to the circumference of the concrete block before, during and after a test, a device for measuring the displacement of the specimen relative to the concrete block, and a device for measuring the radial displacement of the concrete block.
Descriptors : *STRESS TESTING, *REINFORCING MATERIALS, *REINFORCED CONCRETE, *PATENTS, COMPOSITE MATERIALS, CRACKING(FRACTURING), DISPLACEMENT, STRENGTH(MECHANICS), PIPES, MEASURING INSTRUMENTS, BONDING, FAILURE(MECHANICS), RADIAL STRESS
Subject Categories : Ceramics, Refractories and Glass
Laminates and Composite Materials
Test Facilities, Equipment and Methods
Distribution Statement : APPROVED FOR PUBLIC RELEASE