The American Concrete Institute (ACI) is offering free admission and discounted seminar fees for World of Concrete 2011, set for Jan. 18-21 at the Las Vegas Convention Center. To take advantage of the discounts, show-goers must register before Dec. 9 and use code "A21" if prompted.

ACI will be exhibiting at World of Concrete in the South Hall, booth #S10338. To register for the show, click here.