June 2014 Volume 84, Number 6
Contents
Better Roads April 2013 1
PRODUCTS & SERVICE
25 New Road Products 26 Advertiser Index 27 Marketplace
3 Transportation Talk:
Better Roads Editor-at-Large Tina
Grady Barbaccia talks with the
U.S. Transportation Secretary
Anthony Foxx.
22 In Court: No License Doesn't
Mean No Payment
Unlicensed contractors on federal con-
struction projects are entitled to pay-
ment under the Miller Act.
28 The Last Word: Material Handler
Tries to Destroy B15 Smartphone
The phone is dropped from 35 feet,
plunged in water and more, but can it
pass the "Tina Test?" Web extra: Video
COLUMNS & DEPARTMENTS
Contribute:
If your agency or crew has
worked on an exceptional project,
or if you want to share your
thoughts on current transporta-
tion issues, email your ideas for
a blog or contributed story to
Online Managing Editor Amanda
Bayhi at amanda.bayhi@randallreilly.
com and Editor-at-Large Tina Grady
Barbaccia at tinabarbaccia@gmail.com.
How Nevada maintains the lowest number of defi cient bridges in the U.S.
Mark Elicegui, chief structures engineer for the Nevada Department of
Transportation (NDOT), discusses why Nevada has only 36 defi cient bridges,
while most other states have more than. 100 betterroads.com/nevada-bridges
Using myraid concrete pavement restoration techniques, this
state DOT minimized cost and traffic disruption while maxi-
mizing longevity and optimizing results.
Trending Online BetterRoads.com
Subscribe to our newsletter! For daily news updates sent directly to your inbox, subscribe to our free newsletter. Visit betterroads.com to sign up.
4
betterroads.com
/BetterRoadsMagazine
@betterroads
11
17
ROAD SCIENCE: Down to the Dirt
APPLICATIONS & INNOVATIONS:
Minnesota's New Solutions
for Aging Pavement
HIGHWAY CONTRACTOR:
Fighting Thermal Segregation
Intelligent and new technologies are revolutionizing soil com-
paction. Better Roads takes a look at new technologies of soil
compaction, covering high performance vibration via variable
drum frequencies, high and low amplitudes and the benefits of
articulating and oscillating center joints.
A temperature bar can provide a thermal profile in real
time to protect against inconsistent densities that can
occur if freshly paved asphalt pavement becomes too cool
and does not compact properly.
Top Reads:
• VIDEO: Illinois, Oregon DOTs aim to protect workers in highway construction zones
betterroads.com/illinois-ohio-dot-worker-safety
• VIDEO: Grad student creates waterproof concrete that could increase road, bridge life to 120 years
betterroads.com/waterproof-concrete
Infl ation is Key Jeff Weber of Ervin Equipment offers tips for maintaining optimal tire pressure.
betterroads.com/infl ation-is-key
On the cover: This Altoona, Iowa, interstate interchange project used an intelligent compaction system including machine drive power (MDP) maneuvers on the jobsite. Photo credit: Caterpillar Paving
TOC_BR0614.indd 1 6/2/14 4:31 PM
