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Title:

Use of Fine Aggregates Recycled from Cementitious Constituents of Construction Demolition Waste in HMA

Accession Number:

01555123

Record Type:

Component

Availability:

Transportation Research Board Business Office

500 Fifth Street, NW
Washington, DC 20001 United States

Abstract:

Incorporation of recycled materials in pavement construction practices is one of the essential measures placed in rendering the roadway construction industry towards being more sustainable. This study presents an experimental investigation of using fine recycled concrete aggregates (RCA) from construction demolition waste as a replacement of fine virgin limestone aggregates in hot mix asphalt. The work scope consists of conducting fundamental material property tests for RCA and the natural aggregates used, determining the optimum aggregate gradation for a 12.5mm hot mix asphalt (HMA) mix, and conducting mix designs for a control mix consisting of natural limestone aggregates only and mixes with 10%, 15%, 20%, 30%, and 45% of fine aggregates replaced with fine RCA. The volumetric properties of all mixes are evaluated based on Marshall and Superpave mix design criteria; whereas, mechanical properties are evaluated through the complex modulus test at a range of temperatures and frequencies. Additionally, rheological testing is conducted on the mastic phase of the mixes to correlate mastic to mixture performance for mixes with and without RCA filler. Analysis of testing results indicates a general improvement in rutting and cracking resistance for mixes containing up to 20% and 30% fine RCA replacement.

Supplemental Notes:

This paper was sponsored by TRB committee AFK30 Characteristics of Nonasphalt Components of Asphalt Paving Mixtures. Alternate title: Use of Fine Aggregates Recycled from Cementitious Constituents of Construction Demolition Waste in Hot-Mix Asphalt

Monograph Accession #:

01550057

Report/Paper Numbers:

15-4393

Language:

English

Corporate Authors:

Transportation Research Board

500 Fifth Street, NW
Washington, DC 20001 United States

Authors:

Al Hassanieh, Dima Z
Kassem, Hussein A
Chehab, Ghassan R
Abiad, Mohamad G

Pagination:

22p

Publication Date:

2015

Conference:

Transportation Research Board 94th Annual Meeting

Location: Washington DC, United States
Date: 2015-1-11 to 2015-1-15
Sponsors: Transportation Research Board

Media Type:

Digital/other

Features:

Figures; References; Tables

Subject Areas:

Design; Highways; Materials; Pavements; I22: Design of Pavements, Railways and Guideways; I31: Bituminous Binders and Materials; I36: Aggregates

Source Data:

Transportation Research Board Annual Meeting 2015 Paper #15-4393

Files:

TRIS, TRB, ATRI

Created Date:

Dec 30 2014 1:26PM