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Manhole seal
 American Highway Products’ new ECCO Seal is an
effective system developed to eliminate lid vibration by providing a
long-lasting gasket between lid and casting and reduce moisture penetration.
The 7-foot visco-elastic material is non-toxic and environmentally safe.
Simply peel off the paper to expose the adhesive surface. The seal has a
working range of -20 to 180 degrees F, installs easily, and allows regular
inspection without replacement.
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Concrete reinforcement system
Bamtec, based in Switzerland, introduced their
concrete reinforcement system to the U.S. at the World of Concrete in March.
This is an innovative and economic system for designing, manufacturing, and
installing reinforcement steel in concrete bridges, motorways, tunnels, and
more. The system saves up to 80% installation time and up to 40%
reinforcement steel. Two men set a world record by installing 6.2 metric
tons of reinforcement in just 42 minutes using this system.
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Single-sided crash cushion
Road Systems’ new Box Beam Bursting Energy Absorbing
Terminal – Single-Sided Crash Cushion attaches directly to bridge abutments,
rigid barrier ends, and many bridge rails. The BEAT-SSCC can be used in
permanent or work-zone applications and is available with surface-mounted or
ground-mounted posts. The ground-mounted design never needs a concrete pad
to be poured. The system offers a low-cost alternative to other crash
cushions, is quick and easy to install, and is easily repaired on site.
Overall length is 28 feet, which is ideal for restrictive site conditions.
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Asphalt odor control
 Odor Management’s new Ecosorb Asphalt Additive
controls the odors associated with liquid asphalt. The standard aqueous
product was redesigned using a non-aqueous, plant extract solvent that can
be added directly to liquid asphalt. The additive typically mixes at a rate
of 1 gallon for each 10,000 gallons of liquid asphalt.
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Displacement piston pumps
 Force America has several new displacement piston
pumps available. The X Series pumps (right) have flows to 50 gallons per
minute, weigh less that 35 pounds, and pressures to 5,800 psi, making them
ideal for construction industry hydraulic systems. The TXV Series pumps
weigh only 57 pounds, have flows to 55 gallons per minute, and pressures to
5,800 psi, making them ideal for municipal central hydraulic systems. Both
series are compact, lightweight, high-performance pumps designed
specifically for demanding mobile applications where weight and size are
critical
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Epoxy bond for cured concrete
 Rezi-Weld low-viscosity epoxy from
W.R. Meadows is
an amber-colored, two-component, rapid-setting penetrating compound that
offers high-modulus and high-strength characteristics. The easy-to-use
compound bonds cured concrete or metal to concrete, is resistant to most
chemicals, and is moisture insensitive. The compound comes in an
easy-to-mix, user-friendly pre-packed cartridge designed to be gravity fed
or pressure injected into concrete for restoration of bridges, highways, or
any other concrete construction application requiring repair. It seals fine
cracks in interior and exterior concrete surfaces and sets anchor bolts in
concrete.
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Truck-mounted attenuator
The design of the U-MAD truck-mounted attenuator
from Dimensional Products allows for a more absorbent impact, keeping the
errant vehicle from being redirected into the work zone or back into
traffic. In the travel position, the L lift carries the cushion, helping to
reduce stress damage common in suspended units. The attenuator meets
NCHRP-350 requirements.
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Weather information system
The Meteorlogix MxVision WeatherSentry Construction
Edition weather information system is designed to help project managers make
informed weather-related decisions such as planning labor schedules around
inclement weather, protecting exposed worksites from damaging weather,
managing customer expectations when schedules are delayed by weather,
avoiding cost overruns that happen when materials are ruined by bad weather,
and avoiding weather-related injuries. The up-to-the-minute system includes
a graphing weather planner, real-time lightning data, and the ability to
accurately predict and gauge rainfall.
The exclusive new precipitation timing tool,
PrecipTimer, identifies the construction site location and monitors radar
data to provide start and stop times for rain and snow events. StormPath
provides an animated picture of predicted rainfall over a 72-hour time span,
county by county. LightningManager sounds an alarm when a lightning strike
occurs inside the designated zone of protection, providing a warning to
construction management and allowing crews to take shelter. The system is
also available via the Internet.
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Compact full-matrix message sign
The CMS40FM compact full-matrix changeable message
signs from NorthStar Traffic Technologies, a division of Crown Construction
Equipment, has the same number of LEDs as a full-sized board, but spaced
closer together for a crisp image, making it ideal when space is limited.
The sign will display one-, two-, or three-line text messages and graphics
and is NTCIP compliant. Six 6-volt, heavy-duty, deep cycle batteries provide
enough power for the solar-powered unit to run for weeks without sunlight.
The 70- by 42-inch board also features a sturdy welded steel frame, a
virtually unbreakable polycarbonate covering, a waterproof seal around the
perimeter to protect electronic components from moisture, and easy-program
custom software.
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Paved highway sensors
 RoadRAMP Highway axle sensors from RoadRAMP Systems
provide separate, independent sensors in each lane on busy, multi-lane sites
for an accurate count. The pneumatic signals generated by each sensor are
transmitted, without interference, across all other lanes to the traffic
counter installed on the shoulder or median. The signals are then fed
individually into the traffic counter and accurately classified. A better
than 96% accuracy can be achieved on multi-lane sites with more than 20,000
vehicles per day, per lane.
The sensors are typically installed for four- to
six-day periods on busy two- to six-lane sites such as Interstates and
freeways, and are suitable for sites with a high population of heavy trucks.
At the end of each period, the sensors are uplifted, checked for damage, and
used again on other sites.
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Reprinted from Better Roads Magazine
May2004 |
