Applications

Utility PolesAgriculturalHighwayMarinePermanent Wood FoundationsFoundation Piling • Other Uses

 

Utility Poles

Supporting transmission and distribution lines around the globe, Wolmanized® Heavy Duty™ CCA-treated wood utility poles have been exposed to almost every soil and environmental condition imaginable with the same results: long service life, reliability and dependability.

Wood is the ideal material for utility poles. Wood poles are produced from a renewable resource which is resilient and extremely resistant to oxidation, corrosion, fatigue, crumbling and spalling. With Wolmanac® CCA preservative, these wood poles are cost-effectively protected against the biological degraders that cause it to weaken and collapse in nature, namely: fungi and termites.

Advantages:

•50-year warranty for Wolmanized® Heavy Duty™ poles and crossarms.

•Low conductivity protects against current leakage and increases safety for line workers

•Low corrosivity keeps hardware strong

•CCA fixation traps the preservative removing the need for remedial groundline treatment for aging poles

•CCA-treated wood utility poles are non-staining

•Environmental benefits – see the life cycle assessment conducted by an independent firm

•The addition of ET® oil emulsion, makes climbing easier

Life Cycle Analysis of CCA Poles

Agricultural

For farmers and ranchers, Wolmanized® Heavy Duty™ CCA pressure-treated wood fills the need for a durable wood that combats the insect exposure and deterioration that threatens pole barns, fences, and other approved agricultural applications. Plus, fence posts made from Wolmanized® Heavy Duty™ wood come with a 30-year warranty.

Approved agricultural applications for Wolmanized® Heavy Duty™ wood include timbers, poles, piles, and fence posts used as structural members on farms, as well as plywood, permanent wood foundations, and glue-laminated timbers.

Highway

Wolmanized® Heavy Duty™ wood is used in a variety of highway applications including:

•Timber bridges

•Guardrails, posts, and spacer blocks

•Signposts

•Lighting standards

•Noise barriers

Life Cycle Analysis of CCA Guard Rails

Marine

Wolmanac® CCA treatment is ideal for wood in marine construction. When exposed to wind and waves, the resilience of wood can yield superior performance as compared to rigid construction materials. Wood can’t rust, won’t corrode, and doesn’t spall. It can usually be repaired in a more efficient and less costly way than other construction materials. Repairs can be made in all kinds of weather, often using nothing more complicated than ordinary carpentry tools.

Wolmanized® Heavy Duty™ CCA-treated wood is protected from marine organisms such as as Toredo (a shipworm that bores elaborate tunnels within wood) and Limnoria (gribbles that attack the exterior surface in a band around piling).

Typical saltwater applications for Wolmanized® Heavy Duty™ wood include:

Docks • Boathouses • Bulkheads • Boardwalk supports 

Marine and freshwater piling • Groins, dolphins, and jetties

Recommended CCA retention requirements for southern pine treatment in accordance with applicable AWPA standards are as follows: 

piling-retention-chartuse-categories-map-us-coastal-waters-6-14-1

Life Cycle Analysis of CCA in Marine Piles

Permanent Wood Foundations

A Permanent Wood Foundation (PWF) is an in-ground, engineered construction system designed to turn a home’s foundation into usable living space. PWFs made with Wolmanized® Heavy Duty™ are an attractive alternative to conventional block or solid concrete foundations, constructed like the lumber-framed walls of the rest of the home, with plywood sheathing attached on the exterior.

Model building codes and federal agencies, as well as lending, home warranty and fire insurance institutions, have all accepted PWFs. Industry standards (AWPA U1) and building codes require the wood used for PWFs be treated to a retention level of 0.60 pounds of CCA per cubic foot and then re-dried after treatment.

Foundation Piling

Wood piling is a mainstay of foundation systems, and with good reason: Wolmanized® Heavy Duty™ CCA-treated piling offers a number of practical advantages over nonrenewable alternatives. Wolmanized® Heavy Duty timber piling is a low cost, deep installation foundation material; it is widely available, readily modified on site, and easily handled. It resists deterioration in acidic soils, and it neutralizes stray electrical currents. Its taper also provides a friction pile in sand.

Plus, the Wolmanac® CCA treatment results in a leach-resistant pile. Extensive load tests have been performed on pressure-treated timber foundation piles. Design loads as high as 70 tons have been specified, and ultimate loads as high as 235 tons have been carried. CCA-pressure treated foundation piles provide an economical solution for many soils with insufficient bearing strength.

Codes & Standards:

The International Building Code publishes data on timber piling which are summarized below:

International Building Code Standards

Round Piling: ASTM D 25

Treatment:  UC4C

Allowable Design Stresses:

Compression 1250 psi

Bending 2400 psi

Allowable Load:

Without a load test up to 40 ton (IBC)

With a load test as determined by test and subsurface investigation

Other Uses

In addition to the applications covered elsewhere, Wolmanized® Heavy Duty™ CCA pressure-treated wood is also produced for the following uses:

•Sawn structural timbers

•Sawn crossarms

•Structural glued laminated members

•Structural composite lumber

•Shakes and shingles

•Plywood

•Lumber, timbers and plywood for cooling towers and roller coasters