Proj Overview

Project Overview

Officials at High Concrete Group didn’t have to look far to decide what material would provide the best structural framing for its new Maintenance Building. The building features a total-precast concrete design. The $4.1-million project also incorporated a variety of sustainable-design features, aided by the precast concrete, that allowed the facility to achieve a LEED Silver rating.

Precast Solution

The design-build team held a Green Design Charette to discuss project goals, ideas, building systems, local availability of materials, site characteristics, grading, storm water, macro and micro climate including sun and wind considerations, and possible code issues.

The precast concrete elements featured carbon-fiber reinforcing, which increased their durability and thermal efficiency while reducing or eliminating corrosion and reducing weight.

The thermally efficient sandwich wall panels include insulating form that provides R-value of 25. They are reinforced with carbon-fiber shear trusses that make them structurally composite for load bearing.


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Project Team


Greenfield Architects 


Raudenbush Engineering 

General Contractor, Owner, Precaster, and Precast Specialty Engineer

High Construction Co. 

Key Project Attributes

  • Fabricating the precast concrete components under controlled conditions in the plant ensured high quality and tight tolerances, minimizing field adjustments and speeding up erection time.
  • Casting components off-site while site work was completed allowed precast concrete pieces to be ready for erection as soon as foundations were ready, speeding up construction.
  • Precast concrete’s aesthetic versatility provided an attractive look at an economical cost.
  • Precast concrete components contributed in numerous ways to the building achieving LEED Silver certification.
  • Insulated sandwich wall panels provided R-value of 25.
  • Carbon-fiber reinforcing reduces weight of components by about 10 percent, making them easier to handle and reducing loading requirements.

Project/Precast Scope

  • $4.1-million, 16,200-square-foot maintenance building.
  • Serves maintenance department’s needs for servicing heavy trucks, pick-up trucks, cars, and heavy equipment.
  • 37 LEED v2.2 points were credited.
  • Load-bearing insulated sandwich wall panels and double tees used with carbon-fiber reinforcing.