ASTM C989
Full Name
ASTM C989 – Standard Specification for Slag Cement for Use in Concrete and Mortars
Scope
ASTM C989 specifies the requirements for using finely ground granulated blast-furnace slag cement as a cementitious material in concrete and mortar. Slag cement is a byproduct of iron and steel production and is used as a partial replacement for Portland cement in concrete.
Key aspects covered by ASTM C989:
- Classification – the standard classifies slag cement into three grades based on performance in the slag activity test:
- Grade 80
- Grade 100
- Grade 120
- Chemical composition: it specifies the chemical requirements for each grade of slag cement, including limits on the content of various oxides, such as SiO2, Al2O3, MgO, and SO3.
- Physical properties: it outlines the physical requirements, such as fineness, specific gravity, and soundness, to ensure the proper performance of slag cement in concrete and mortar.
- Sampling and testing: it provides guidance on sampling and testing procedures for evaluating the chemical and physical properties of slag cement.
- Benefits: using slag cement in concrete offers several advantages, including improved workability, reduced permeability, increased durability, and lower heat of hydration.
By adhering to ASTM C989, manufacturers and users of slag cement can ensure its quality and consistency, leading to the production of durable and sustainable concrete structures.
ASTM C989 Accredited Laboratory
Applied Testing & Geosciences, LLC is accredited for performing tests using the ASTM C989 standard.
Our laboratory offers comprehensive testing services to assess the physical and chemical properties of your product. Our experienced team can perform tests to determine fineness, slag activity index, compressive strength, and other critical parameters. By utilizing our expertise, you can ensure that your slag cement meets the requirements of ASTM C989 and delivers exceptional performance in your concrete and mortar applications.
Contact us today to learn more about our testing capabilities and how we can support your business.
Resources
Keywords
slag cement; concrete; mortar; blast furnace slag; granulated blast furnace slag; chemical composition; physical properties; fineness; specific gravity; soundness; strength activity index