For Immediate Release
Repairing cracked, spalled, tipped and broken concrete
has always been a dusty, noisy and time- consuming job. Even for
minor repairs, prep and cure times can take hours, especially
when removals are required. Just having an area under construction
can be a greater hazard then the fault itself. Roadware Inc. manufactures
a two-part, high-speed polyurethanes called, 10 Minute Concrete
Mender™ it can eliminates most of the
noisy, dusty, prep work and insures permanent repairs in minutes.
Concrete Mender™, boasts a low, penetrating viscosity of 8.6 Cps. It is wetter-than-water. It penetrates deep into the base concrete and holds bond, even in the most difficult repair situations. It is estimated that over 10 million linear feet of cracked and broken concrete are repaired each year with Concrete Mender and the failure rate, even after years of service, is close to zero.
Concrete Mender can be extended with sand to lower costs and to produce a hybrid construction mortar. This Mender-mortar is used to construct ramps, fill spalls, level rough debonded concrete, repair concrete steps, spalled balconies, pool decks, etc. Mender-mortar can be colored to match existing concrete or repairs can be coated with any commercial coating on the market.
Scanning electron microscopy was used to unlock the bonding secrets of 10 Minute Concrete Mender. The tests were performed by the Department of Civil Engineering, University of Illinois at Urbana-Champaign, under the direction of Prof. David A. Lange. His summary reads as follows:
The microstructure of the interface between Concrete Mender and concrete substrate indicates that a high quality bond is achieved. The success of Concrete Mender is due to the compatibility of Concrete Mender with concrete materials. The fresh liquid has a low viscosity and a low surface tension that allows capillary forces to draw Concrete Mender into the pore structure of the concrete. Experiments indicate that repairs using Concrete Mender fully engage the underlying substrate. The shrinkage of Concrete Mender is low and should not pose concern for debonding or delamination due to volume changes. The Modulus of Elasticity of Concrete Mender, as with almost all polymeric materials, is lower than that of concrete. The strength of Concrete Mender is on the order of concretes used in construction. It is reasonable to expect that repairs with Concrete Mender largely restore the structural performance of the original concrete.
Note: A high resolution photo is available for use by the media on our Public Relations Photo Page.