Standard Test Method for Alkali Resistance of Fiber Reinforced Polymer (FRP) Matrix Composite Bars used in Concrete Construction

Importancia y uso:

5.1 This test method is intended to determine alkaline resistance data for material specifications, research and development, quality assurance, and structural design and analysis. Depending on the procedure and test matrix, the primary test results are the mass change and tensile capacity retention of the test specimen, which are important factors to be considered in the use of FRP reinforcing bars. Procedures A and B are accelerated tests, substituting an alkaline aqueous environment for the presence of concrete porewater. Procedure C can be used to establish the accelerating effect of Procedure B.

5.1.1 Procedure A is appropriate for rapid screening of FRP bars for alkali resistance.

5.1.2 Procedure B is appropriate for characterizing the alkali resistance of FRP bars under sustained mechanical loading in a standard aqueous alkaline environment intended to represent the concrete porewater.

5.1.3 Procedure C is appropriate for characterizing the alkali resistance of FRP bars under sustained mechanical loading in Portland cement concrete.

Subcomité:

D30.10

Referida por:

D8444_D8444M-24, D7957_D7957M-22, D8505_D8505M-23, D4762-23

Volúmen:

15.03

Número ICS:

91.080.40 (Concrete structures)

Palabras clave:

alkali resistance; alkaline solution; fiber reinforced polymer (FRP); sustained loading; tensile capacity; tensile capacity retention;