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Investigate the Effect of Paper Sludge Ash Addition on the Mechanical Properties of Granular Materials

Al-Hdabi, Abbas and Fakhraldin, Mohammed K. and Al-Fatlawy, Rasha A. and Ali, Tawfek Sheer (2020) Investigate the Effect of Paper Sludge Ash Addition on the Mechanical Properties of Granular Materials. POLLACK PERIODICA : AN INTERNATIONAL JOURNAL FOR ENGINEERING AND INFORMATION SCIENCES, 15 (3). pp. 79-90. ISSN 1788-1994 (print); 1788-3911 (online)

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Abstract

Ignition of waste paper sludge at elevated temperatures to produce electricity in power generation plants utilizing fluidized bed combustion generates paper sludge ash. Due to the high concentration of lime and gelignite in paper sludge ash, it is expected that it will play a vital role as a cementitious material. This paper investigates the use of paper sludge ash to improve the mechanical properties of the granular materials, which are suitable to subbase course for road and building constructions. Also, a comparison study with the use of Portland cement as an additive to granular materials has been covered. The mechanical properties were evaluated by conducting the California bearing ratio test for the two adopted methods. Moreover, the compressive strength of the samples using paper sludge ash and cement are investigated. In accordance to the California bearing ratio test, 4% paper sludge ash was indicated as the optimum ash content at which the California bearing ratio value increased by 173% and 111% in comparison with untreated material and 6% cement, respectively. On the other hand, and by means of the compressive strength, the granular materials with 4% paper sludge ash has compressive strength higher than those with 6% cement.

Item Type: Article
Additional Information: MTA KFB támogatási szerződés alapján archiválva
Subjects: T Technology / alkalmazott, műszaki tudományok > TA Engineering (General). Civil engineering (General) / általános mérnöki tudományok
SWORD Depositor: MTMT SWORD
Depositing User: Violetta Baliga
Date Deposited: 01 Feb 2022 08:07
Last Modified: 07 Nov 2022 00:15
URI: http://real.mtak.hu/id/eprint/136770

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