| QRD | quarry rock dust |
| SG | ground granulated blast furnace slag |
| FA | fly ash |
| SP | superplasticizer |
| SF | steel fiber |
| W/C | water-cement ratio |
Official websites use .gov
A
.gov website belongs to an official
government organization in the United States.
Secure .gov websites use HTTPS
A lock (
) or https:// means you've safely
connected to the .gov website. Share sensitive
information only on official, secure websites.