Application of fiber-reinforced plastic rods as prestressing tendons in concrete structures. Final report

Technical Report · Tue Aug 01 04:00:00 EDT 1989

OSTI ID:5050807

Mattock, A H; Babaei, K

The study is concerned with the possibility of utilizing fiber-reinforced plastic rods as prestressing tendons, in place of traditional steel tendons, in elements of prestressed-concrete bridges exposed to corrosive environments. A survey was made of available information on the behavior characteristics of fiber-reinforced plastic tension elements and, in particular, those of glass-fiber-reinforced (GFR) tension elements. Also, an analytical study was made of the flexural behavior of concrete elements prestressed by GFR tendons. Based on the analytical study and on the survey of available information, an assessment is made of the impact on the design of prestressed-concrete members if GFR tendons are used. Some preliminary design recommendations are made, together with proposals for research needed before GFR prestressing tendons should be used in practice. Four GFR tendons with Con-Tech Systems anchorages were tested, the primary variable being the embedded length of the GFR rods in the anchorages. All the tendons failed by the rods pulling out of the anchorages. For embedded lengths of 15.2 in or greater, the failure loads were 90% of the advertised tendon strength of 220 ksi, or about 100% of the guaranteed tensile strength of 197 ksi (60 kN/rod).

• Research Organization: Washington Univ., Seattle, WA (USA)
• OSTI ID: 5050807
• Report Number(s): PB-90-125097/XAB
• Country of Publication: United States
• Language: English

Related Subjects

36 MATERIALS SCIENCE
360601* -- Other Materials-- Preparation & Manufacture
360603 -- Materials-- Properties
ANCHORS
BUILDING MATERIALS
CONCRETES
CORROSION RESISTANCE
DESIGN
DOCUMENT TYPES
FLEXURAL STRENGTH
MATERIALS
MATERIALS TESTING
MECHANICAL PROPERTIES
MECHANICAL TESTS
PETROCHEMICALS
PETROLEUM PRODUCTS
PLASTICS
PRESTRESSED CONCRETE
PROGRESS REPORT
REINFORCED CONCRETE
REINFORCED MATERIALS
REINFORCED PLASTICS
RODS
SYNTHETIC MATERIALS
TENSILE PROPERTIES
TESTING