https://scholars.lib.ntu.edu.tw/handle/123456789/546822
標題: | Effect of partially replacing ordinary Portland cement with municipal solid waste incinerator ashes and rice husk ashes on pervious concrete quality | 作者: | Lo, F.-C. Lo, S.-L. Lee, M.-G. SHANG-LIEN LO |
關鍵字: | Compressive strength; MSWI bottom ash; MSWI fly ash; Pervious concrete; Rice husk ash; TCLP; Water permeability | 公開日期: | 2020 | 卷: | 27 | 期: | 19 | 起(迄)頁: | 23742-23760 | 來源出版物: | Environmental Science and Pollution Research | 摘要: | Pervious concrete (PC) provides multiple benefits, including reducing stormwater runoff, purifying water, recharging groundwater, and reducing the heat island effect. This study aims to determine an effective way to reuse municipal solid waste incinerator (MSWI) fly ash (FA), MSWI bottom ash (BA), and rice husk ash (RHA) as single or binary partial replacements for ordinary Portland cement (OPC) in PC. The ashes and PC specimens were characterized via X-ray fluorescence spectroscopy, X-ray powder diffraction, field emission-scanning electron microscopy, and Fourier transform infrared spectroscopy. The compressive strength, water permeability, and toxicity characteristic leaching procedure (TCLP)-released metals were investigated to evaluate the PC quality. The main components of the ashes were similar to those of OPC, suggesting that the ashes could be reused as cement materials; however, the cementitious activity of the ashes, especially MSWI FA, was relatively low. All ashes except 1100 °C MSWI FA met the standard requirements and can be applied as pozzolanic materials. The three PC specimens with binary replacements containing RHA (550, 700, and 900 °C) and MSWI BA (1100 °C) showed a synergistic effect and exhibited a higher 90-day compressive strength than the other specimens with single and binary ash replacements containing RHA (550 and 900 °C). The water permeability ranged between 0.106 and 0.391 cm/s, and the TCLP-released metal concentrations from all specimens met the regulatory standards of Taiwan. The results indicated that replacement with MSWI BA and RHA in cement materials provides an acceptable compressive strength and water permeability. © 2020, Springer-Verlag GmbH Germany, part of Springer Nature. |
URI: | https://www.scopus.com/inward/record.url?eid=2-s2.0-85083769891&partnerID=40&md5=d2f1e6938dcb836ad9079279104489ac https://scholars.lib.ntu.edu.tw/handle/123456789/546822 |
DOI: | 10.1007/s11356-020-08796-z | SDG/關鍵字: | cement (construction material); concrete; crop residue; detection method; incineration; municipal solid waste; temperature effect; toxicity; Taiwan; carbon; heavy metal; city; fly ash; heat; incineration; Oryza; particulate matter; solid waste; Taiwan; waste disposal; Carbon; Cities; Coal Ash; Hot Temperature; Incineration; Metals, Heavy; Oryza; Particulate Matter; Refuse Disposal; Solid Waste; Taiwan |
顯示於: | 環境工程學研究所 |
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