Use of coal ash cement stabilized material as pavement base material: Laboratory characterization and field evaluation

Date

2022-08-15

Author

Wiranata, Didi Yuda
Yang, Shih-Hsien
Akgül, Çağla
Hsien, Ho Yu
Nugraha, Muhammad Zilzaludin Putra

Metadata

Show full item record

This work is licensed under a Creative Commons Attribution-NonCommercial-NoDerivatives 4.0 International License.

Item Usage Stats

145
views

0
downloads

© 2022Coal fly ash (CFA) and coal bottom ash (CBA) are coal combustion's primary solid waste products. This solid waste management is a substantial challenge for power plants and local authorities. In order to apply coal ash as a pavement base material, the relationship of the mixture's mechanical properties with structural design parameters for pavement design and analysis must be explored. No study has investigated the mechanical behavior of the 100% coal ash cement stabilized material (CACSM) as a pavement base layer. Therefore, this study aimed to investigate the structural layer coefficient of CACSM used in the American Association of State Highway and Transportation Officials (AASHTO) 1993 pavement design guide. The study consisted of laboratory material characterization and field evaluation. The mechanical property test revealed that CACSM has a self-healing ability; coal ash appeared to influence the secondary curing of the specimens significantly. Strength towards the ends of stage I and stage II showed the influence of high pozzolanic on the CACSM, which resulted in improved long-term performance. The layer coefficients of the locations in the field test ranged from 0.22 to 0.24. By contrast, for the granular base and cement-treated base, these values were 0.07 to 0.14 and 0.17–0.20, respectively. The study findings show that CACSM as a pavement base is a viable solution that can help develop transportation infrastructure with enhanced concrete durability and lower carbon footprint emissions.

Subject Keywords

Circular economic, Coal Bottom Ash, Coal fly ash, Layer coefficient, Low carbon construction, Pavement base, Pavement design

URI

https://www.scopus.com/inward/record.uri?partnerID=HzOxMe3b&scp=85132713187&origin=inward
https://hdl.handle.net/11511/98074

Journal

Construction and Building Materials

DOI

https://doi.org/10.1016/j.conbuildmat.2022.128055

Collections

Department of Civil Engineering, Article

Suggestions

OpenMETU
Core

Utilization of wet-handled and dry-handled coal bottom ashes in portland cement based composites Tirkeş, Sera; Akgül, Çağla; Department of Civil Engineering (2021-9-7) Coal bottom ash (BA) is a coarse, granular, incombustible by-product collected from the bottom of coal-burning furnaces. Traditionally, it has been handled by wet-handling systems (WHS) that use large amounts of water for cooling and conveying BA. WHS relies on established technologies such as impounded hoppers or submerged scraper conveyors. However, the need for water treatment, environmental concerns such as contaminated water, and high operational costs caused a necessary shift from WHS to more sustaina...
Modelling of ECBM recovery from Amasra Coalbed in Zonguldak Basin, Turkey Sınayuç, Çağlar (2018-01-01) Bartin-Amasra coal field was found convenient for enhanced coalbed methane (ECBM) recovery among the other fields in Zonguldak Coal Basin, Turkey. The lithologic information were examined and the depths of the coal seams and the locations of the wells were visualized to perform a reliable correlation between 63 coal layers existed in the area. The initial methane in place found in the coal layers both in free and adsorbed states were estimated using probabilistic simulations resulted in possible reserve (P1...
Assessment of catalyst deactivation model for sulfur retention in fluidized bed combustors Degirmenci, E; Gogebakan, Y; Selçuk, Nevin (2000-01-01) An improved version of a combustion-desulfurization model for fluidized bed combustors burning high ash and sulfur content low quality lignite in its own ash with the addition of limestone is presented. The desulfurization model considers sulfur retention by both limestone and ash and is based on first order catalyst deactivation where the kinetics of desulfurization is described by two rate constants; one for the initial surface reaction, the other for the rate of pore plugging or deactivation. The accurac...
Utilization of Yatagan Power Plant Fly Ash in Production of Building Bricks Önel, Öznur; TANRIVERDİ, MEHMET; ÇİÇEK, TAYFUN (2017-09-15) Fly ash is a by-product of coal combustion, which accumulates in large quantities near the coal-fired power plants as waste material. Fly ash causes serious operational and environmental problems. In this study, fly ash from Yatagan thermal power plant was used to produce light-weight building bricks. The study aimed to reduce the problems related to fly ash by creating a new area for their use. The optimum process parameters were determined for the production of real size bricks to be used in construction ...
Hydrogeochemical investigation of groundwater characteristics in Alpu coal field, Eskisehir-Turkey Tural, Ceren Yazıgülü; Çamur, Mehmet Zeki; Department of Geological Engineering (2021-6) Hydrogeochemical characteristics and quality of groundwater resources in Alpu Coal field to the north of Porsuk Creek are investigated. EC, pH, DO and ORP average value ranges are determined as 438-1227 μS/cm, 7.43-8.69, 3.29-6.05 mg/l and 106-180 mv, respectively in spring waters and as 452-30233 μS/cm, 7.46-8.48, 0.6-6.0 mg/l ve 198- -183 mv, respectively in well waters. All spring waters are in HCO3 - Mg, Mix(Ca-Mg), Ca facies. Groundwater facies, stratigraphically downward: change in the order of HCO3, ...

Citation Formats

D. Y. Wiranata, S.-H. Yang, Ç. Akgül, H. Y. Hsien, and M. Z. P. Nugraha, “Use of coal ash cement stabilized material as pavement base material: Laboratory characterization and field evaluation,” Construction and Building Materials, vol. 344, pp. 0–0, 2022, Accessed: 00, 2022. [Online]. Available: https://www.scopus.com/inward/record.uri?partnerID=HzOxMe3b&scp=85132713187&origin=inward.