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Title:

Tests Modification of the Particulate Additive Test (PAT), for the Determination of the SBR Polymer Content on Asphalt Binders

Accession Number:

01478813

Record Type:

Component

Availability:

Transportation Research Board Business Office

500 Fifth Street, NW
Washington, DC 20001 United States

Abstract:

As it is in many countries, Costa Rica is implementing the use of polymer modified asphalts for road construction. A growing market offers various types of polymers that significantly improve the rheological properties of the asphalts, like styrene-butadiene rubber (SBR), styrene butadiene styrene (SBS), rubber, EMA, EVA among others, which are commonly added at percentages between 1 and 5% mass/mass of binder. However, little research has been conducted on quantifying the amount of polymer incorporated to the asphalt binders. This study presents a modification to the Particulate Additive Test (PAT) proposed by Bahia et al. (2001) to determine in a qualitative and quantitative way the presence of SBR type polymers on local asphalts (PG64-22). Two types of SBR polymers were used. However, the scope of this methodology does not include the identification of SBS polymers. The results obtained show an acceptable rate of polymer recovery. The results can be later verified by means of the Fourier Transform Infrared Spectroscopy (FTIR). Also the solvents can be changed to apply this method for SBS type polymers or other polymers, turning this method into a quick, easy and low cost quality control tool to verify the amount of polymer added to the plant asphalt mixtures.

Supplemental Notes:

This paper was sponsored by TRB committee AFK20 Characteristics of Asphalt Materials.

Monograph Accession #:

01470560

Report/Paper Numbers:

13-4275

Language:

English

Corporate Authors:

Transportation Research Board

500 Fifth Street, NW
Washington, DC 20001 United States

Authors:

Corrales-Azofeifa, Jose
Salazar, Jorge
Aguiar-Moya, Jose P
Loria, Luis

Pagination:

10p

Publication Date:

2013

Conference:

Transportation Research Board 92nd Annual Meeting

Location: Washington DC, United States
Date: 2013-1-13 to 2013-1-17
Sponsors: Transportation Research Board

Media Type:

Digital/other

Features:

Figures; Photos; References; Tables

Uncontrolled Terms:

Particulate additive test

Geographic Terms:

Costa Rica

Subject Areas:

Highways; Materials; I30: Materials

Source Data:

Transportation Research Board Annual Meeting 2013 Paper #13-4275

Files:

TRIS, TRB, ATRI

Created Date:

Feb 5 2013 12:50PM