https://www.avient.com/sites/default/files/2025-01/Glasforms Dowel Bar Application Overview.pdf
Glass fiber reinforced polymer (GFRP) dowel bars offer advantages over traditional steel or epoxy- coated steel bars: • Electromagnetic transparency: ideal for high- speed toll roads to prevent interference • Corrosion resistance: the GFRP material will not rust or corrode in salt or alkaline environments • Light weight: less than one-third the weight of steel • Does not bond to concrete: eliminates the need for sleeves or grease to allow for expansion and contraction Glasforms™ composite dowel bars are tested and approved to meet the following requirements: • ASTM 1356 Glass Transition Temperature • ASTM D570 Water Absorption • ASTM 2344 Short Beam Strength • ASTM 7617 Transverse Shear Strength Glasforms™ Composite Dowel Bars for Concrete Pavement Construction APPLICATION OVERVIEW WHY GLASFORMS PULTRUDED COMPOSITES? Matrix Resin Fiber Reinforcement Fiber Content, by Weight (%) Epoxy E-CR or E-Glass >70% MATERIAL TECHNICAL DATA Property Test Procedure Rod Diameter 1.25 in (31.75 mm) 1.50 in (38.10 mm) Glass Transition Temp (Tg) ASTM 1356 100°C Minimum 100°C Minimum Water Absorption 24 hours at 50°C (122°F) ASTM D570 0.03% 0.03% Short Beam Strength (ILSS) ASTM 2344 8,400 psi (58 MPa) 9,200 psi (64 MPa) Transverse Shear Strength ASTM 7617 23,400 psi (160 MPa) 24,640 psi (170 MPa) Traceability Lot number shall be clearly marked on each package/shipment.
https://www.avient.com/sites/default/files/2022-06/Complet REC Technical Bulletin.pdf
They process easily across all standard fiber loading ranges of long glass, long carbon, or hybrid combinations of fiber. Post-Consumer Recycled Resin 0% 50% 100% Long Glass Fiber 50% 50% 50% Tensile Strength 35,000 psi 241 MPa 34,000 psi 234 MPa 31,500 psi 217 MPa Tensile Modulus 2,300 ksi 2,250 ksi 15,517 MPa 2,200 ksi 15,172 MPa Flexural Strength 52,000 psi 359 MPa 51,500 psi 355 MPa 51,500 psi 355 MPa Flexural Modulus 2,200 ksi 15,172 MPa 2,150 ksi 14,828 MPa 2,100 ksi 14,483 MPa Izod Notched Impact 5.5 ft-lb/in 4.5 ft-lb/in 240 J/m 4.0 ft-lb/in 214 J/m Izod Un-Notched Impact 25.0 ft-lb/in 1,335 J/m 23.0 ft-lb/in 1,228 J/m 20.5 ft-lb/in 1,095 J/m Post-Industrial Recycled Resin 0% 50% 100% Long Glass Fiber 50% 50% 50% Tensile Strength 36,000 psi 248 MPa 34,500 psi 238 MPa 34,000 psi 234 MPa Tensile Modulus 2,500 ksi 17,241 MPa 2,400 ksi 16,552 MPa 2,300 ksi Flexural Strength 54,000 psi 372 MPa 52,000 psi 359 MPa 51,000 psi 352 MPa Flexural Modulus 2,500 ksi 17,240 MPa 2,400 ksi 16,552 MPa 2,300 ksi Izod Notched Impact 5.5 ft-lb/in 4.0 ft-lb/in 214 J/m 3.5 ft-lb/in 187 J/m Izod Un-Notched Impact 22.5 ft-lb/in 1,202 J/m 19.5 ft-lb/in 1,041 J/m 19.0 ft-lb/in 1,015 J/m COMPLĒT REC PIR TPU COMPARISON Complēt REC PIR TPU materials are available in black or natural. Post-Industrial Recycled Resin 0% 25% 50% 75% Long Glass Fiber 40% 40% 40% 40% Tensile Strength 29,500 psi 203 MPa 28,000 psi 193 MPa 25,000 psi 172 MPa 21,500 psi 148 MPa Tensile Modulus 1,700 ksi 11,724 MPa 1,650 ksi 11,379 MPa 1,600 ksi 11,034 MPa 1,550 ksi 10,690 MPa Flexural Strength 45,500 psi 314 MPa 43,000 psi 297 MPa 37,000 psi 255 MPa 32,500 psi 224 MPa Flexural Modulus 1,700 ksi 11,724 MPa 1,650 ksi 11,379 MPa 1,600 ksi 11,034 MPa 1,550 ksi 10,690 MPa Izod Notched Impact 8.0 ft-lb/in 427 J/m 7.5 ft-lb/in 401 J/m 6.5 ft-lb/in 347 J/m 5.5 ft-lb/in Izod Un-Notched Impact 27.0 ft-lb/in 1,442 J/m 26.0 ft-lb/in 1,388 J/m 22.5 ft-lb/in 1,202 J/m 17.5 ft-lb/in 935 J/m 1.844.4AVIENT www.avient.com Copyright © 2022, Avient Corporation.