Info Sheets

Slag cement, or ground granulated blast-furnace slag (GGBFS), has been used in concrete projects in the United States for over a century.

Saw cuts are a means of cutting joints in concrete.

Sulfate attack is a common form of concrete deterioration.

Hardened concrete containing slag cement may show mottled green or blue green areas on the surface in the first few days after placement. This temporary condition is commonly called “greening.”

Guidance for specifiers in the absence of slag cement specifications, or for the addition of slag cement to an existing specification.

Precast concrete is a concrete product manufactured and cured in a casting facility.

Slag cement is used in major projects to achieve improved concrete performance, which is important to builders and owners of residential homes.

Concrete is an inherently green material that is highly durable.

Local soils are not adequate to meet support requirements for a construction project so slag cement is used to make soil cement.

LEED is a national standard developed by the U.S. to certify high performance, sustainable buildings.

Concrete proportioning is the selection of proportions of ingredients to make the most economical use of available materials to produce concrete of the required properties.

Slag cement must be stored in bins or silos to protect from contamination.

Alkali Silica Reaction (ASR) is a chemical reaction between the alkalies in Portland cement and materials present in aggregates.

Slag cement and fly ash are the two most common SCMs used in concrete.

Concrete made with slag cement provides higher compressive and flexural strengths.

There are several methods of producing concrete pipe, but producing it with slag cement provides many benefits.

Ternary concrete mixtures include three different cementitious materials.

Life cycle prediction models are engineering tools developed from an understanding of concrete performance.

Based on research, slag cement has been specified and used on several waste stabilization projects.

Scaling is a surface defect that results from exposure to freezing and thawing conditions.

Time of set is defined as the point in time at which penetration resistance reaches specified values.

Permeability is a measure of how easily water, air or other substances such as chloride ions enter concrete.

According to ACI 2071, “mass concrete is any large volume of concrete [that] require that measures be taken to cope with the generation of heat and attendant volume change to minimize cracking.”

Slag Cement Terminology and Specifications

Concrete with advanced properties not found in conventional concrete.

There are several methods of producing concrete block, but producing it with slag cement provides many benefits.

ASTM C595 requires that blended cements consist of an intimate and uniform blend of specified constituent materials

Controlled Low-Strength Material (CLSM) is a self compacting material consisting of cementitious materials and aggregates.

Shrinkage is the time dependent decrease in concrete volume compared with the original placement of concrete.

In Portland Cement Concrete (PCC), about 96% of the CO2 emissions, and roughly 85% of the embodied energy come from cement alone.