Figure 1.
Experimental results tensile stress versus time for the two sizes of ultra-high-performance concretes (UHPCs): (a) 20 mm; (b) 60 mm.
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.