ASTM C928
Full Name
ASTM C928 – Standard Specification for Packaged, Dry, Rapid-Hardening Cementitious Materials for Concrete Repairs
Scope
ASTM C928 covers packaged, dry, cementitious materials used for rapid repairs to hardened hydraulic-cement concrete pavements and structures. These materials can be either mortar or concrete and are designed to harden quickly for expedited repairs.
Key points of the scope include:
- Material types: the standard focuses on packaged, dry materials that are either mortar (containing less than 5% aggregate retained on a 9.5mm sieve) or concrete (containing at least 5% aggregate retained on a 9.5mm sieve).
- Binder type: only materials with hydraulic cement as the primary binder are included. This excludes materials with organic binders like bitumens, epoxy resins, and polymers.
- Application: the materials are intended for rapid repairs of hardened hydraulic-cement concrete, which includes pavements and other structures.
- Additional components: the packaged materials may include aqueous solutions, emulsions, or dispersions that can partially or completely replace mixing water.
- Exclusions: the standard doesn’t cover materials containing principal organic binders, or those used for underwater or overhead applications.
The primary goal of ASTM C928 is to establish standardized requirements for these rapid-repair materials, ensuring consistent quality and performance in their intended applications. This includes specifications for material composition, properties like compressive strength and drying shrinkage, and test methods for evaluating these properties.
ASTM C928 Accredited Laboratory
Applied Testing & Geosciences, LLC is accredited for performing tests using the ASTM C928 standard.
Contact us today to learn more about our testing capabilities and how we can support your business.
Resources
Keywords
rapid-hardening cementitious materials; concrete repairs; hydraulic cement; mortar; concrete; packaged dry materials; compressive strength; drying shrinkage; time of setting; aggregate; mixing water; curing