Determining Percentage of Recycled Asphalt Pavement in Asphalt Mixtures

Gao, Ya; Jones, Christopher; Hossain, Mustaque

doi:10.7922/G2KH0KPR

i

Determining Percentage of Recycled Asphalt Pavement in Asphalt Mixtures

2025-05-01
By Gao, Ya ; Jones, Christopher ; Hossain, Mustaque

File Language:

English

Details

Creators:

Gao, Ya ; Jones, Christopher ; Hossain, Mustaque
Corporate Creators:

Kansas State University Transportation Center. Department of Civil Engineering
Corporate Contributors:

Kansas Department of Transportation. Bureau of Research
Subject/TRT Terms:
Publication/ Report Number:

K-TRAN: KSU-22-2
DOI:

https://doi.org/10.7922/G2KH0KPR
Resource Type:

Tech Report
Geographical Coverage:

United States;Kansas
Edition:

Final Report July 2021 – December 2023
Corporate Publisher:

Kansas State University. Transportation Center
Abstract:

Drum mix plants are the primary hot-mix asphalt (HMA) production plants for most Kansas Department of Transportation (KDOT) projects. In drum mix plants, a totalizer controls the input rate of virgin aggregates and recycled asphalt pavement (RAP). In current practice, the RAP percentage is determined by the input rate shown on the totalizer. However, KDOT conducted a detailed analysis of data from one project and found that the estimated amount of RAP based on the asphalt cement mass-balance method was higher than the designed RAP content. The study for this report included visits to several plants and the collection of plant operation and total production data to calculate the RAP percentage. Furthermore, a Monte-Carlo approach was followed to estimate RAP quantity based on RAP binder content, and actual plant input and output data verified the calculations. This report proposes test guidelines for RAP and reclaimed asphalt shingle percentages.
Format:

PDF
Funding:

C2185
Download URL:

https://rosap.ntl.bts.gov/view/dot/83592/dot_83592_DS1.pdf
File Type:

[PDF - 1.98 MB]
Collection(s):

US Transportation Collection
Main Document Checksum:

urn:sha-512:5518b4ba8decc987ece9c63853281657c604816385dd6c2b57507c0d3ef87c1146c8dc1de9d7340006fed6a8c7940812e7accf30e6fb236c5494c434979edecc

File Language:

English

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