Water quenched slag from incinerator ash used as artificial stone
Journal
Case Studies in Construction Materials
Journal Volume
16
Date Issued
2022
Author(s)
Abstract
In this research, the incineration slag is treated with high temperature by the plasma melting treatment technology to effectively solve the resource recovery and reuse of the incineration slag. After the thermal plasma melting, the molten slag is vitrified into microcrystalline materials by cooling with water. It is called water quenched slag (WQS). Based on the characteristics of molten slag, the feasibility of reusing artificial stone resources is an importance issue. The objective of this study is to investigate mechanical properties of artificial stone made by WQS from the incinerator ash. The WQS is utilized for replacing stone powder and make artificial stone in this study. The research scope is to assess the proper ratio of coarse and fine WQS particles to produce the artificial stone. The experimental testing program includes hardness, specific gravity, water absorption, compressive strength, tensile strength, heat resistance, and toxic dissolution tests. The testing results show when the ratio of coarse and fine particles of WQS is 1:1 blended, the physical properties of the specimens are closer to those of general artificial stone; the tensile strength decrease but the compressive strength increase when more the amount of resin or WQS are mixed; in the heat resistance test, its softening point and failure point are similar to those of artificial stone. In summary, the comprehensive test results show that WQS demonstrate great potential to largely replace the stone powder component of artificial stone as an ecological and environmentally friendly material. ? 2021 The Authors
Subjects
Artificial stone
Hardness
Incinerator ash
Strength
Water quenched slag (WQS)
Compressive strength
Crystalline materials
Heat resistance
Melting
Molten materials
Software testing
Specific heat
Tensile strength
Tensile testing
Water absorption
Highest temperature
Molten Slag
Plasma melting
Stone powders
Treatment technologies
Water quenched slag
Water-quenched slag
Slags
SDGs
Type
journal article