Tag: recycled materials

Roadbuilding
Survey: 39% of asphalt pavement produced with energy-saving warm mix–nearly 79M tons of recycled materials used
Asphalt mix producers continue to make significant use of energy-saving warm-mix asphalt technologies, with more than 99 % of reclaimed asphalt pavement recycled.
July 19, 2018
paving compactor roller stock
Roadbuilding
Special Report from TRB 2014: Warm Mix Asphalt
The incursion of warm-mix asphalt (WMA) into the nation’s bituminous pavements continues unabated.
March 7, 2014
Porous asphalt pavement is similar to open-graded friction courses (OGFC), with the same problem of drain-down, but is meant for static loads and environmentally sustainable stormwater drainage. Here, mix for the parade ground at U.S. Marine Corps Recruit Depot at Parris Island, S.C., contains warm-mix additive instead of fibers.
Roadbuilding
Running Shingles the Right Way
Correctly running recycled asphalt shingles (RAS) and reclaimed asphalt pavement (RAP) at the same time can be a tricky business.
February 7, 2014
Astec built a special bin for Ideker to run 1/10-inch shingles.
Roadbuilding
Plant Management of RAP/RCA
Processing and storage makes reclaimed asphalt and recycled concrete aggregate useful as aggregate.
November 6, 2013
Raw RAP stockpile (foreground) is reduced to consistent sizes by a mobile impact crusher.
Roadbuilding
The Durability Factor
The goal is performance over time.
August 7, 2013
Mechanistic-empirical pavement design considers site conditions such as traffic, climate, subgrade, existing pavement condition for rehabilitation, and construction conditions, in proposing a trial design for a new pavement or rehab; then, using software, the trial design is evaluated through prediction of key distresses and smoothness.
Roadbuilding
Highway Contractor
Even with a strong foundation and long history, you need to be willing and able to adapt to stay competitive today.
September 7, 2012
Roadbuilding
Highway Contractor
Even with a strong foundation and long history, you need to be willing and able to adapt to stay competitive today.
September 7, 2012
Roadbuilding
Road Science
Recycled materials need analysis, characterization.
September 6, 2012
In Wisconsin, pavement demolition concrete is crushed next to a construction site. The resulting RCA will go back as base material below concrete pavement.
Page 1 of 1