Since 1918, The NSA has promoted the use of Blast Furnace and Steel Furnace Slag. Blast Furnace slag has been called the “All-Purpose Aggregate” as it can be used in all construction applications as either a normal weight or lightweight (expanded or pelletized) aggregate depending on how it was formed and processed. Blast Furnace Slag is also quickly quenched by water or air to produce Granulated Blast Furnace Slag.

Join the National Slag Association!


Leadership Meeting –    PAST EVENT                                                       January 3rd, 2022,  9:00 am to 1:00 pm Virtual

Combined Commitee’s Spring Meetings –    PAST EVENT                                               March 15th , 2023 9:00 am to 4:00 pm Las Vegas, NV 

National Slag Association at AISTech 2023 – PAST EVENT                          May 8th– 11th Detroit, MI

Proc., Ops., Safety, Allied Committee Meetings –       REGISTER HERE   June 14th,  2023, starting at  9:00 am to 1:00 pm, Exton, PA

Tech., Environ., Marketing Committee Meetings – REGISTER HERE                     June 28th,  2023,  9:00 am to 1:00 pm, Seven Fields, PA

National Slag Association  Annual Meeting  –    REGISTRATION NOW OPEN       September  18th– 20th Isle of Palms, SC



Early Bird Registration for the 2023 Annual Meeting is NOW OPEN!

SENNEBOGEN Hosts 2023 combined Spring Committee Meetings

SENNEBOGEN hosted the 2023 combined spring committee meetings in Las Vegas at ConAgg/ConExpo on March 15,  2023.  This was an opportunity for the entire slag industry to set objectives as an association and also participate in and discuss issues on all topics including Technical, Environment, Marketing, Purchasing, Operations, and Safety.  Also present were the allied members who serve as an integral arm of the industry and Las Vegas was an excellent venue for this meeting since it allowed many of these members to showcase their products to the industry.   As the sponsor however SENNEBOGEN a leading name in the global material handling industry for over 65 years took this opportunity to demonstrate how they have become a leading provider of specialized equipment solutions for recycling and scrap metal yards, demolition, barge and port operations, log-handling, transfer stations, waste facilities and the tree care industry from coast to coast.   SENNEBOGEN went the extra mile by hosting an amazing dinner the night before the meeting that was attended by over 50 members.  THANK YOU SENNEBOGEN.

If you would like to know more about SENNEBOGEN, please go onto their website: