ASTM D7957/D7957M-17
Standard Specification for Solid Round Glass Fiber Reinforced Polymer Bars for Concrete Reinforcement

Standard No.
ASTM D7957/D7957M-17
Release Date
2017
Published By
American Society for Testing and Materials (ASTM)
Status
Replace By
ASTM D7957/D7957M-22
Latest
ASTM D7957/D7957M-22
Scope

1.1 This specification covers glass fiber reinforced polymer (GFRP) bars, provided in cut lengths and bent shapes and having an external surface enhancement for concrete reinforcement. Bars covered by this specification shall meet the requirements for geometric, material, mechanical, and physical properties described herein.

1.2 Bars produced according to this standard are qualified using the test methods and must meet the requirements given by Table 1. Quality control and certification of production lots of bars are completed using the test methods and must meet the requirements given in Table 2.

TABLE 1 Property Limits and Test Methods for QualificationA

Property

Limit

Test Method

Mean Glass Transition Temperature

Midpoint temperature 1008201;°C [2128201;°F]

ASTM E1356

Mean Degree of Cure

958201;%