Rising prices for materials like liquid asphalt. Tighter budgets that require doing
more with less. Increasing concerns about the environment. Trends like these call
for alternatives that go beyond the old tried-and-true approaches like mill-and-fill.
Value engineering makes recycling make sense.
One basic strategy is to re-use what is already in place. Pavement Recycling Systems
has developed recycled asphalt products that rival virgin hot mix in performance.
But the specification and market acceptance of these products lag the performance
and cost curve. Anything new entails a risk. PRS's core competency in engineering
has made it feasible to agencies and owners to adopt new alternatives successfully.
Recycling is also a more difficult process in the field. Conventional "mill and
fill" is relatively easy to manage: Get the trucking right to haul off the old and
bring in the new, and jobs are relatively straightforward. Recycling in-place is
more difficult. For example, maintaining grade and profile of the roadway is a challenge
when material must be perfectly balanced. There are issues with repairing isolated
areas of subgrade failure, and the recycled mix requires more energy and time to
cure and compact. But the savings can be up to 50% less than with conventional methods.
Full Depth Reclamation is another method that competes well with remove and replace
strategies. Again, there are construction issues that must be addressed, but the
savings are worth the extra effort.
The PRS engineering-driven approach takes all these issues into account. As PRS
develops new technologies, it is hoped even more costs savings and higher value
will be realized.
Saving on costs before, during and after.
With any rehabilitation project, thorough pre-project evaluation along with sound
engineering practices are the key to success. Pre-project evaluation includes a
pavement condition survey to determine the type of distress and deterioration. Involve
PRS at the early stage, and we will help you spec out the highest value, lowest
cost solution. This type of evaluation can also identify potential problems (such
as unsuitable soil) before they become costly emergencies.
We also employ a full-range of on-site and laboratory tests as required before,
during and after job completion. PRS has in-house engineering and outside consulting
engineering firms who will work either directly with owners, or with contractors
project owners to create value and increase job performance and profitability.
The environmental imperative.
Increasingly important are public perceptions that that an agency is both trying
to be "green" and save taxpayer money. In pavement maintenance and rehabilitation
projects, you are called upon to demonstrate reduced energy expenditure, carbon
emissions, and truck traffic. PRS solutions deliver these benefits, and we can provide
you with proof from an engineering perspective.
Doing the right thing.
What if you already have the funds allocated for a project, the project parameters
are spec'd out, and PRS shows you it can be done for half the amount? Best case,
you can rehabilitate two roads for the price of one. And benefit the environment
in the process. Worst case, you may need to do some additional paperwork to be sure
the extra funds remain in your budget. Either way, you're doing the right thing
by getting more value for the dollar and protecting the environment.