A platform for research: civil engineering, architecture and urbanism
A platform for research: civil engineering, architecture and urbanism
Investigation of Shotcrete
Two processes for pneumatic application of concrete (shotcreting), the wet and dry, both with fine and coarse aggregate, were investigated. Specimens cored from panels of the pneumatically applied concrete were tested to determine such physical properties as compressive strength, tensile strength, shear strength, permeability, bond pullout resistance of steel, density, absorption, unit weight, and resistance to freezing and thawing. Panels were also tested to determine the adhesion of the shotcrete to the rough and smooth surfaces of concrete, the rough and smooth surfaces of old shotcrete, and the smooth surfaces of old concrete and old shotcrete painted with epoxy. Test results indicated that a direct tension test is the best method for evaluating the bond strength and the uniformity of shotcrete. Bonding shotcrete to old concrete or old shotcrete can be accomplished using epoxy. Results of individual tests of the shotcrete varied more than results of individual tests of conventional concrete. (Modified author abstract)
Investigation of Shotcrete
Two processes for pneumatic application of concrete (shotcreting), the wet and dry, both with fine and coarse aggregate, were investigated. Specimens cored from panels of the pneumatically applied concrete were tested to determine such physical properties as compressive strength, tensile strength, shear strength, permeability, bond pullout resistance of steel, density, absorption, unit weight, and resistance to freezing and thawing. Panels were also tested to determine the adhesion of the shotcrete to the rough and smooth surfaces of concrete, the rough and smooth surfaces of old shotcrete, and the smooth surfaces of old concrete and old shotcrete painted with epoxy. Test results indicated that a direct tension test is the best method for evaluating the bond strength and the uniformity of shotcrete. Bonding shotcrete to old concrete or old shotcrete can be accomplished using epoxy. Results of individual tests of the shotcrete varied more than results of individual tests of conventional concrete. (Modified author abstract)
Investigation of Shotcrete
W. O. Tynes (author) / W. F. McCleese (author)
1974
64 pages
Report
No indication
English
Construction Equipment, Materials, & Supplies , Construction Materials, Components, & Equipment , Concrete , Test methods , Pneumatic devices , Compressive properties , Tensile properties , Shear strength , Permeability , Density , Absorption , Adhesion , Steel , Freezing , Damage , Panels , Epoxy resins , Shotcrete
| Wiley | 2013