ISO 23523:2021
Test methods for discrete polymer fibre for fibre-reinforced cementitious composites
This document specifies the test methods for discrete polymer fibre for fibre-reinforced cementitious composites (FRCC).
This document defines the test methods for discrete polymer fibre, such as diameter, length, tensile strength, initial modulus of elasticity, density, melting point, moisture content and alkaline durability as basic items. These are test methods intended for certification of a fibre and not for quality control or field acceptance.
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Foreword
Introduction
1 Scope
2 Normative references
3 Terms and definitions
4 Symbols and abbreviated terms
5 Test methods for determining fibre diameter
5.1 Consecutive fibre method
5.2 Chopped fibre method
5.3 Test report
6 Test method for determining fibre length
6.1 Procedure
6.2 Test report
7 Test method for determining tensile strength and initial modulus of elasticity
7.1 Testing machine
7.2 Sampling of specimens
7.3 Procedure
7.4 Tensile strength
7.5 Initial modulus of elasticity
7.6 Test report
8 Test method for determining fibre density
8.1 Procedure
8.2 Test report
9 Test method for determining thermal properties of fibre
9.1 Melting point
9.2 Test report
10 Test method for determining moisture content of fibre
10.1 Procedure
10.2 Test report
11 Test method for determining alkaline durability
11.1 General
11.2 Apparatus and reagents
11.3 Sampling and conditioning of test specimens
11.4 Preparation of alkaline solution
11.5 Exposure of alkaline condition
11.6 Tensile test procedure
11.7 Calculations
11.8 Test report
Bibliography
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Foreword
Introduction
1 Scope
2 Normative references
3 Terms and definitions
4 Symbols and abbreviated terms
5 Test methods for determining fibre diameter
5.1 Consecutive fibre method
5.2 Chopped fibre method
5.3 Test report
6 Test method for determining fibre length
6.1 Procedure
6.2 Test report
7 Test method for determining tensile strength and initial modulus of elasticity
7.1 Testing machine
7.2 Sampling of specimens
7.3 Procedure
7.4 Tensile strength
7.5 Initial modulus of elasticity
7.6 Test report
8 Test method for determining fibre density
8.1 Procedure
8.2 Test report
9 Test method for determining thermal properties of fibre
9.1 Melting point
9.2 Test report
10 Test method for determining moisture content of fibre
10.1 Procedure
10.2 Test report
11 Test method for determining alkaline durability
11.1 General
11.2 Apparatus and reagents
11.3 Sampling and conditioning of test specimens
11.4 Preparation of alkaline solution
11.5 Exposure of alkaline condition
11.6 Tensile test procedure
11.7 Calculations
11.8 Test report
Bibliography