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原文传递 Influence of Fly Ash–Based Geopolymer Binder on the Sedimentation Behavior of Dredged Mud

题名：	Influence of Fly Ash–Based Geopolymer Binder on the Sedimentation Behavior of Dredged Mud
其他题名：	Abdullah,M.A.,Jamaludin,L.,Hussin,K.,BnHussain,M.,Ghazali,C.M.,and Ahmed,M.I.(2012)."Fly ash porous material using geopolymerization process for high temperature exposure."Int.J.Mol.Sci.,13(4),4388–4395.
正文语种：	英文
作者：	Mohamed Jaditager
关键词：	Dredged mud;Fly ash;Geopolymer;Land reclamation;Sedimentation;Stabilization
摘要：	This laboratory study investigated the sedimentation behavior of a fly ash–based geopolymer-stabilized dredged-mud slurry extracted from the Port of Townsville, Queensland, Australia. Settling-column tests were conducted to study the sedimentation behavior of 400％-watercontent dredged mud of untreated and geopolymer-stabilized slurries at 6, 12, and 18％ content by weight. Dredged-mud slurry interface height movements with elapsed time were recorded, and their settling patterns were observed. Mineralogical and microstructural characteristics of dried, untreated, and geopolymer-stabilized dredged-mud sediments were determined using X-ray diffraction (XRD) and scanning electronmicroscopy (SEM) with energy dispersive spectroscopy (EDS) analysis. The study found that a fly ash–based geopolymer gel coating the dredged-mud particles in the slurry led to a flocculated settling behavior, and the geopolymer stabilization reduced the overall dredged-mud slurry sedimentation duration. XRD and SEM/EDS analysis showed that the geopolymer stabilization altered the microstructure of stabilized dredged-mud sediment and reduced its desiccation shrinkage cracks.
出版年：	2017
论文唯一标识：	P-108Y2017V143N05005
英文栏目名称：	TECHNICAL PAPERS
doi：	10.1061/(ASCE)WW.1943-5460.0000390
期刊名称：	Journal of Waterway, Port, Coastal, and Ocean Engineering
拼音刊名(出版物代码)：	P-108
卷：	143
期：	05
页码：	40-48