Durability of POFA-modified dense-graded cold mix asphalt

Usman, K.R. and Hainin, M.R. and Satar, M.K.I.M. and Warid, M.N.M. and Bilema, M.A. and Usman, A. and Zulfiqar, A.J. (2022) Durability of POFA-modified dense-graded cold mix asphalt. In: UNSPECIFIED.

Full text not available from this repository.
Official URL: https://www.scopus.com/inward/record.uri?eid=2-s2....

Abstract

Cold mix asphalt (CMA) is a versatile and energy efficient mixture often prepared at ambient temperature. Efforts to improve the performance of CMA mixtures recorded appreciable success. Nonetheless, the critical performance measures of moisture and abrasive resistance still baffles researchers. Additionally, CMA�s design, production, testing, and site application is bedevilled by slow rate of strength gain, high void content, and absence of a globally acceptable mix design. This study aimed at assessing CMA�s durability measures using the modified Lottman (moisture damage) and Cantabro tests by adding a 3 palm oil fuel ash (POFA) as filler replacement and 3 cement. Fast-curing mixtures fabricated with a cationic quick-set (CQS-1h) and a rapid-set (RS-1K) emulsion both of medium viscosities with a nominal maximum aggregate size (NMAS) of 4.75 mm were evaluated. In addition to improving the Marshall volumetric properties, POFA�s inclusion is aimed at improving adhesion thereby enhancing the durability of the fine dense-graded cold mix asphalt (FGCMA-4.75 mm). The modified Marshall as stated in the asphalt institute (AI) manual series (MS-19) for dense-graded CMA was used for design. Results indicated that POFA reduces the void, improves stability, and enhance durability. Moreover, the CQS-1h has better durability for both control (FGCMA-C) and POFA-modified mixtures (FGCMA-P). While RS-1K has higher tensile strength in both dry and moisture-conditioned states with a higher tensile strength ratio (TSR) for both FGCMA-C and FGCMA-P mixtures. POFA�s pozzolanic capability proves effective in improving the durability and moisture damage resistance of FGCMA-P. © 2022 Institute of Physics Publishing. All rights reserved.

Item Type: Conference or Workshop Item (UNSPECIFIED)
Additional Information: cited By 2; Conference of 12th International Conference on Geotechnical Engineering in Tropical Regions: Fostering Future Through Geotechnical, Sustainable Engineering and Technology, GEOTROPIKA 2021 and 2nd International Conference on Highway and Transportation Engineering: Empowering Transportation Engineering for Industrial Solutions, ICHITRA 2021 ; Conference Date: 21 September 2021 Through 22 September 2021; Conference Code:177260
Depositing User: Mr Ahmad Suhairi UTP
Date Deposited: 19 Dec 2023 03:23
Last Modified: 19 Dec 2023 03:23
URI: https://khub.utp.edu.my/scholars/id/eprint/17075

Actions (login required)

View Item
View Item