Details:

Creators:
Mohammad, Louay
Corporate Creators:
Louisiana Transportation Research Center
Subject/TRT Terms:
[+]
Asphalt Mixtures Asphalt Pavements Durability Fatigue Cracking Hot Mix Paving Mixtures Pavement Performance Reclaimed Asphalt Pavements Recycled Materials Warm Mix Paving Mixtures
Publication/ Report Number:
14-5PF
Resource Type:
Brief
Geographical Coverage:
Louisiana
Corporate Publisher:
Louisiana Transportation Research Center
Abstract:
Asphalt recycling has become an important instrument used to minimize production

costs of new pavements as well as to mitigate its impacts of the environment. Some of

the benefi ts of utilizing recycled materials include the conservation of nonrenewable

natural resources, such as virgin aggregates and asphalt binder; reduction in the amount

of construction debris disposed of in landfi lls; decrease of the variability in material

expenditures; and potential reduction of the overall life-cycle costs. Recycling also

helps to cut greenhouse gas emissions by reducing the energy spent on the extraction

and processing of petroleum products and aggregates. Moreover, the increasing price

of asphalt binder along with more restrictive environmental legislation has forced

the highway agencies and contractors to search for novel materials and construction

techniques. Such eff orts are aimed at fulfi lling the current sustainability needs without

compromising the pavement quality and performance. There is currently considerable

emphasis on the use of reclaimed asphalt pavement (RAP) as preferred recycled

material for highway construction due to its abundance and successful prior experiences.

Recycled asphalt shingles (RAS) have also become another promising recycling

candidate due to their potential use in asphalt mixtures. However, to ensure successful

use of RAP and/or RAS, many concerns relating to the chemical and physical interactions

among virgin and recycled materials as well as the durability of the produced mixture

must be addressed.


Format:
PDF
Collection(s):
US Transportation Collection
Main Document Checksum:
[+]
urn:sha256:9ccedf2b1567231dbeb720ac25209c553c62b7869852bec6e662475b5c7baafb
Download URL:
https://rosap.ntl.bts.gov/view/dot/29198/dot_29198_DS1.pdf
File Type:

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