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Title: Recycling asphalt proves economical for paving contractors

Abstract

Methods of recyclig asphalt to repair roads are described and evaluated. Need for recycling is caused by the escalating price of asphalt (an oil product). The economics and efficiency of the various processes used are evaluated. Methods described are: (1) cold-mix recycling in which the road is crushed, mixed with a new asphalt emulsion and reapplied; (2) hot mix, which involves ripping up pavement, trucking it to an asphalt plant, and mixing the old pavement material with virgin paving materials; and (3) cold planing (when only the top few inches of the road are deteriorated). Mining of asphalt roads, by removing top layers from old roads which are thick from many repair jobs, is described as well as mining of old airstrips. Value of asphalt available has been estimated as high as $50 billion. Recycling processes for asphalt are described briefly. (MJJ)

Publication Date:
OSTI Identifier:
6308994
Resource Type:
Journal Article
Journal Name:
Compressed Air; (United States)
Additional Journal Information:
Journal Volume: 87:9
Country of Publication:
United States
Language:
English
Subject:
32 ENERGY CONSERVATION, CONSUMPTION, AND UTILIZATION; ASPHALTS; RECYCLING; ROADS; REPAIR; COST; ECONOMIC ANALYSIS; EFFICIENCY; RESOURCE CONSERVATION; WASTE PRODUCT UTILIZATION; BITUMENS; ECONOMICS; ORGANIC COMPOUNDS; OTHER ORGANIC COMPOUNDS; TAR; 320303* - Energy Conservation, Consumption, & Utilization- Industrial & Agricultural Processes- Equipment & Processes

Citation Formats

. Recycling asphalt proves economical for paving contractors. United States: N. p., 1982. Web.
. Recycling asphalt proves economical for paving contractors. United States.
. 1982. "Recycling asphalt proves economical for paving contractors". United States.
@article{osti_6308994,
title = {Recycling asphalt proves economical for paving contractors},
author = {},
abstractNote = {Methods of recyclig asphalt to repair roads are described and evaluated. Need for recycling is caused by the escalating price of asphalt (an oil product). The economics and efficiency of the various processes used are evaluated. Methods described are: (1) cold-mix recycling in which the road is crushed, mixed with a new asphalt emulsion and reapplied; (2) hot mix, which involves ripping up pavement, trucking it to an asphalt plant, and mixing the old pavement material with virgin paving materials; and (3) cold planing (when only the top few inches of the road are deteriorated). Mining of asphalt roads, by removing top layers from old roads which are thick from many repair jobs, is described as well as mining of old airstrips. Value of asphalt available has been estimated as high as $50 billion. Recycling processes for asphalt are described briefly. (MJJ)},
doi = {},
url = {https://www.osti.gov/biblio/6308994}, journal = {Compressed Air; (United States)},
number = ,
volume = 87:9,
place = {United States},
year = {Wed Sep 01 00:00:00 EDT 1982},
month = {Wed Sep 01 00:00:00 EDT 1982}
}