Controlled Low-Strength Material Using Industrial Waste Incineration Bottom Ash and Refined Kaolin

Razak, H.A. and Naganathan, S. and Hamid, S.N.A. (2010) Controlled Low-Strength Material Using Industrial Waste Incineration Bottom Ash and Refined Kaolin. Arabian Journal for Science and Engineering, 35 (2B). pp. 53-67. ISSN 1319-8025,

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Abstract

This paper reports the details of investigations carried out to study the performance of industrial waste incineration bottom ash and refined kaolin to produce controlled low-strength material (CLSM). CLSM mixes were designed with varying amounts of incineration bottom ash, refined kaolin, and cement. Water content was adjusted to get sufficient flowability. Tests for density, stiffening time, bleed, settlement, sorptivity, water absorption, moisture content, California bearing ratio, initial surface absorption, and compressive strength were carried out on the CLSM mixtures. Study for corrosivity and leaching of heavy metals and salts on the bleed and leachate were also performed. The compressive strength of CLSM tested ranged from 0.36 to 4.40 MPa. CBR values ranged from 10 to 46 and ISAT values at 1 hour from 0.56 to 4.76 ml/m2/s. None of the heavy metals tested exceeded the threshold limits in leachate. Addition of kaolin controls the compressive strength development, and reduces initial surface absorption, California bearing ratio, and water absorption values. It is shown that the incineration bottom ash, along with refined kaolin, can be successfully employed in CLSM, thereby contributing to sustainability in civil engineering practice.

Item Type:	Article
Funders:	UNSPECIFIED
Additional Information:	677PJ Times Cited:3 Cited References Count:15
Uncontrolled Keywords:	California bearing ratio, Compressive strength, Controlled low-strength material, Corrosivity, Initial surface absorption, Leachate, Sorptivity, Stiffening time, Water absorption
Subjects:	T Technology > TA Engineering (General). Civil engineering (General)
Divisions:	Faculty of Engineering
Depositing User:	Mr Jenal S
Date Deposited:	24 Jan 2014 14:33
Last Modified:	26 Dec 2014 02:21
URI:	http://eprints.um.edu.my/id/eprint/9091

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