Project Description

The concrete supplied by CalPortland and placed by Hardrock Concrete Placement was required to meet SOV FF 50 and FL 35 for flatness and levelness and minimum concrete strengths of 4000 psi. CalPortland utilized three plants at times to provide concrete at the rate the contractor demanded. The consistency was of extreme importance and critical to the outcome of the finished product. The concrete mix was managed by Tom Romero, Quality Control Manager who designed the mix to meet HomeGoods specification and satisfy the contractor. The basis for standard testing was ASTM E1155-96(2001) and the results for MLV FF and FL were in the range for Superflat tolerances. The concrete used met the project standards for NRMCA and ASTM. The outcome was a durable and sustainable concrete structure that will provide many years of uninterrupted service to HomeGoods.
Project Scope
Length of Time – 9 months
Construction type – Tilt and PCCP paving
LEED Registered – BD+C v2009 Gold
Overall Value – FF67/FL48
Largest 1 day placement – 1375 cubic yard
Number of tilt panels – 174
PCCP Placement – 35,000 cubic yards
Primary mix – 4000 psi fly ash #57 rock
Project Team
Owner – HomeGoods
Construction Cost – $40 Million
Location – City of Tucson, AZ
General Contractor – Layton Construction
Concrete Contractor – Hardrock Concrete
Engineer – TLCP
Architect – PDA Incorporated
Supplier – CalPortland, Tucson