ULTIMATE STRENGTH OF CHOPPED WIRE REINFORCED SMALL SCALE MORTAR SLABS.
Abstract
Small scale concrete slabs reinforced with chopped wire were tested to determine ultimate strength and failure mechanism. Special techniques for adding the chopped wire were required to obtain a uniform and workable mix. Best results were obtained by blowing the 0.5 inch lengths of 6 mil wire into the mixer as the wire was sifted slowly through a screen. Three slabs were cast at Carnegie Institute of Technology and shipped to the PSDC for testing and eight were cast at the PSDC. The nominal thickness of the test slabs varied from 1/2 to 3/4 inch. All slabs were 30 inches square and supported on rollers at 29-1/4 inches. Uniformly distributed static loads were applied using a vacuum loading apparatus. Increasing the reinforcement from 2% to 4% by volume did not increase the strength of the slabs. Slabs containing 2% reinforcement had greater ultimate strength than predicted while those with 0% and 4% failed at lower than predicted loads. (Author)
Document Details
- Document Type
- Technical Report
- Publication Date
- Jan 01, 1967
- Accession Number
- AD0652884
Entities
People
- Herbert C. Lamb
- Michael M. Dembo