LOOK WHAT WE'RE DOING!!

JULY 5, 2002

Delta Plastics is pleased to announce that Dr. Lawrence Reaveley and Dr. Pedro Romero from the Engineering Department of the University of Utah have finished the requested testing of the Bisfoam-3 A&B epoxy foam.  The results are that the Bisfoam-3 A&B will meet the requirements of FEMA 356.  The increased calculated h/t ratios will allow walls which were determined unacceptable under FEMA 356 to be in compliance when repaired with the Bisfoam-3 A&B.  Do the math.

The following comparisons and recommendations are made from the report issued by the University of Utah on the Bisfoam-3 A&B:

In order to fully determine the potential benefits of using Bisfoam-3 as a material to retrofit non-reinforced brick masonry structures it is recommended that the following be investigated:

• The cost-benefit ratio of using Bisfoam-3 on comparison to other techniques:  including materials, application, labor and performance.
• The ductility of the material and improvements in the energy absorption of the material by this reinforcement method.
• The negative effect of the gap between the bricks on the structural performance of the unfoamed wall.
• The shear and tensile bonding values between the foam and the masonry units.
• The effect of different loading conditions as might be seen during a seismic event.
• The effect of the existing axial load on the performance of the injected wall.

A point from the manufacturer:  The original goal when first undertaking testing was to increase life survivability under seismic events.  This product has surpassed the most optimistic hope for this application of masonry stabilization.  I have seen no other method which is better.

The research projects involving our BISFOAM-3 A&B are ongoing.  Look for links to new data as it becomes available.

A final edition of the California State University, Fresno report  on our Seismic Upgrading Testing is now available.  Click Here To View Now!

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