Rigid Foam…not just for insulation

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EPS geofoam

The same material that many contractors use to insulate walls and roofs—expanded polystyrene (EPS)—can help reduce lateral loads on building foundations and retaining walls. EPS geofoam is a lightweight fill that allows for the use of thinner walls, with less material, as well as a reduction in labor needed for concrete forming or the installation of segmented retaining wall blocks.

EPS geofoam has the same composition as EPS insulation, but is formed into blocks, rather than sheets. As a fill material, a key advantage of EPS is its ultra low weight—approximately 100 times lighter than soil (one to three pounds per cubic foot compared to 110 to 120 pounds for soil). EPS geofoam enables contractors to backfill against walls and foundations, replacing the heavy soil wedge customary with traditional fill materials.

Read more as detailed by Nico Sutmoller, Geofoam Specialist, in Walls and Ceilings. Nico outlines geofoam benefits, applications and where engineers often specify EPS geofoam and why.

Read full article here…

Nico Sutmoller, Insulfoam Geofoam Specialist

Nico Sutmoller, Insulfoam Geofoam Specialist

Contact Nico Sutmoller, Geofoam Specialist

nico.sutmoller@insulfoam.com

Connect with Nico on LinkedIn

San Francisco 49er’s Find EPS Geofoam Useful in Future Home

 

EPS Geofoam

EPS Geofoam

Candlestick Park was built in 1960 and has been the home of the San Francisco 49ers NFL team since 1971.  “The Stick” was originally built as a baseball stadium for the then New York Giants baseball team to convince them move to San Francisco.  Due to the wide spread popularity of the “Niners” football franchise, a new stand alone stadium in Santa Clara was approved and a groundbreaking ceremony was held in April of 2012.  The project has a very demanding schedule that requires engineers and contractors to employ many methods to speed the construction phasing due to the fact that the new stadium is scheduled to open for the 2014 NFL season.  View the 49er’s blog where you can see aerial photo gallery of the new stadium.

EPS Geofoam

EPS Geofoam

The open air football stadium employs thousands of stepped/ pre-cast concrete panels that will serve as the foundation for the fan seating areas.  These pre-cast structures are steel reinforced and manufactured off site to reduce the forming cost/time on site and increase the consistency of the “skin on the bones” of the steel structure.  These stair stepped panels were installed in late 2012 after a record breaking steel erection timeframe of the super structure.  As part of the overall seating and viewing area plan, hundreds of flat platforms were included in the design to accommodate ADA ramps, wheelchairs, TV cameras and various other uses.  Engineers with HNTB, one of the world’s foremost firms specified the use of Expanded Polystyrene (EPS) Geofoam to constitute the structural void fill to support the ramps and platforms.   They chose EPS Geofoam due to its’ extreme low density and high bearing capacity to support the concrete topping slabs.  By using an ultra-lightweight soil replacing fill material, EPS Geofoam significantly reduced dead and lateral loads on the pre-cast panels by adding elevation and slope without a lot of weight.

 
EPS Geofoam

EPS Geofoam

Conco Company of Concord, CA worked as a sub-contractor to Turner and Devcon Construction, the prime contractors to furnish and install the Geofoam as part of their large concrete package.  Conco workers installed 3,500 cubic feet of EPS39 and 25,000 cubic feet of EPS15 for various ramps and platforms throughout the new stadium.  The lightweight fill was provided by Insulfoam of Dixon, CA along with electric hot wire tool kits to allow workers to cleanly and easily fabricate the blocks on the jobsite.  The single largest benefit to concrete contractors when using Geofoam is the ability of the material to constitute half of the form and the fill simultaneously which completely eliminates the concept of a two pour operation.

 

INSULFOAM GEOFOAM QUESTIONS?

Nico Sutmoller, Insulfoam Geofoam Specialist

Nico Sutmoller, Insulfoam Geofoam Specialist

Contact Nico Sutmoller, Geofoam Specialist

nico.sutmoller@insulfoam.com

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