Amin, Iskandar Zulkarnain Mohd
(2024)
Environmental Impact Assessment Of
Abrasive Materials In Industrial
Blasting Process.
PhD thesis, Universiti Sains Malaysia.
Abstract
The environmental impact study of abrasive materials in the blasting industry
is a pivotal research endeavour. Abrasive blasting, widely used in surface preparation
and painting industries, involves projecting high-pressure abrasive material onto
surfaces. This research aims to characterize various abrasive materials and assess their
environmental impact. Various proposed abrasive materials, including diamond,
garnet, jadecut, ceramic, and two types of glass (Duragrit glass and Glass blast),
undergo a meticulous examination of their compound composition and crystallinity,
utilizing X-ray Fluorescence (XRF) and X-ray diffraction (XRD) analyses. Both
Duragrit glass and Glass blast emerge as promising candidates, displaying an
amorphous structure and meeting the Department of Occupational Safety and Health
(DOSH) requirements for open blasting. Mechanical properties of these materials are
thoroughly characterized, including particle size distribution (ISO11127-2), apparent
density (ISO11127-3), hardness (ISO11127-4), moisture content (ISO11127-5), and
water-soluble chlorides (ISO11127-7). For instance, apparent density measures 2.17 ×
103 kg/m3 for Duragrit glass and 2.5 × 103 kg/m3 for Glass blast, with moisture content
at 0.01%. Water-soluble chlorides are Nil for Duragrit glass and 0.0001% for Glass
blast. These findings are foundational for effective abrasive blast-cleaning, ensuring
safety compliance, and preserving desired surface features. The efficacy of Duragrit
glass and Glass blast in surface preparation adheres to industry standards, meeting
Petronas Technical Specifications (PTS) and Shell Technical Specifications (STS) requirements.
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