Surfaces made safe

Spanning Manahawkin Bay, and carrying traffic along Route 72 between Long Beach Island and Manahawkin, New Jersey, USA, the Dorland J. Henderson Memorial Bridge, known as the Manahawkin Bay Bridge, was in need of repair. New Jersey Department of Transportation (NJDOT) specified Transpo T-17 MMA polymer concrete patch and T-18 MMA polymer concrete slurry overlay as approved materials for the 12,000m² bridge rehabilitation project on the steel girder bridge. All the bridge deck spalls were prepared and patche
April 4, 2012 Read time: 3 mins

Spanning Manahawkin Bay, and carrying traffic along Route 72 between Long Beach Island and Manahawkin, New Jersey, USA, the Dorland J. Henderson Memorial Bridge, known as the Manahawkin Bay Bridge, was in need of repair.

2555 New Jersey Department of Transportation (NJDOT) specified 350 Transpo T-17 MMA polymer concrete patch and T-18 MMA polymer concrete slurry overlay as approved materials for the 12,000m² bridge rehabilitation project on the steel girder bridge.

All the bridge deck spalls were prepared and patched before the entire surface received a thin T-18 MMA overlay. After the removal of the deteriorated existing concrete, T-41 MMA primer was applied to seal the concrete surface and increase the bond strength of the T-17 MMA polymer concrete patches to the existing concrete surface.

When the patching was completed the last operation was the installation of a thin 9.5mm T-18 MMA polymer concrete slurry overlay, and a high-wear and skid-resistant aggregate was broadcast onto the overlay surface. When cured the entire surface was coated with T-18 MMA topcoat to help lock the aggregate into the overlay.

1394 Ennis Prismo Traffic Safety Solutions’ new Fibrescreed RC100MTR crack repair product has passed the technical assessment for crack repair systems for highways under the BBA HAPAS scheme (British Board of Agrément Highways, Highway Authorities Product Approval Scheme).

The assessment means that the product is now approved for use on all major asphalt major roads, motorways and bridges in the UK.

While the approval is for recessed crack repair, Ennis Prismo manufactures a range of Fibrescreed products that can be used for practically all types of crack repair, including kerb sealing, infill, saw cut and seal/crack inducer and SAMI (stress absorbing membrane interlayer).

Fibrescreed RC100MTR is said to reduce costs by extending the life of existing highways without the need for resurfacing, and because it is fast and easy to apply, keeps costly traffic disruption to a minimum.

Meanwhile, 2314 Stirling Lloyd has developed a range of high performance road maintenance products to improve safety for the contractor and road user, and “offer superior in situ performance with a longer service life.” The company’s Safetrack Crack Infill, Safetrack Overbanding and Ultrajoint systems (bitumen-free, liquid, cold applied, fast-curing reactive resin systems for sealing and repairing cracks) are also HPAS Road and Bridges approved.

Stirling Lloyd says that the provision of safer and reliable traffic flows has become a matter of major concern for both the highway authorities and the road users.

“The need for reliable, long-term, safety enhancing road repairs with fast, first-time permanent reinstatement is becoming the driving force in highways maintenance,” says the company.
Concrete milling, paving & compaction

For more information on companies in this article

Related Content

  • A pothole damage breakthrough?
    April 11, 2013
    Academic research by two universities in the same UK city shows that patch repairs on potholes could be far more durable if a few simple techniques were consistently used. Guy Woodford reports. Repairing pothole damage to highways and vehicles across Europe costs responsible authorities and individual motorists hundreds of millions of euros each year. Yet it has cost just €20,204 to make the potentially crucial first step in identifying a method of keeping highways across the continent and beyond pothole fr
    Read More
  • Kenya’s bridge maintenance woes persist
    May 10, 2018
    Many of Kenya’s bridges are in poor condition writes Shem Oirere. The lack of programmed maintenance of bridges in Kenya continues to undermine the structural integrity of the infrastructure and compromising their general usage safety despite the existence of approved measures to protect them from falling into a state of disrepair. Experts think that both the absence of a maintenance component in bridge construction contracts, especially for those built one or two decades ago, and a weak maintenance supervi
    Read More
  • Economic and environmental asphalt recycling
    February 27, 2012
    Recycling materials offers the road ahead for highway construction - * Don Brock writes. Recycling has been used in the US for over 50 years in various industries. Today, steel is 100% recycled, and many other products that we have can be recycled.Environmental groups have aggressively pushed industries to recycle more, but it is either economically driven or legislatively driven.In the highway industry it has predominately been economically driven and discouraged by stakeholders such as aggregate producers
    Read More
  • World growth in geosynthtics set to rise
    February 17, 2012
    With geosynthetics sales set to grow rapidly in the next three years, manufacturers are preparing for the demand. Patrick Smith reports. Global demand for geosynthetics is projected to increase 5.3% annually to 4.7 billion m² in 2013 with countries such as China, India and Russia expected to post the strongest gains through the forecast period. All are building large-scale infrastructure developments and face evolving environmental protection regulations and strict building construction codes.
    Read More

Highlighted Content