Evaluation of Fillers for Magnesium Potassium Phosphate Cement (MKPC) for the Encapsulation of Low and Intermediate Level Metallic Radioactive Wastes

Autor:	Mikel Dieguez, Ana Isabel Ruiz, Jaime Cuevas, María Cruz Alonso, Inés García-Lodeiro, Raúl Fernández
Jazyk:	angličtina
Rok vydání:	2023
Předmět:	magnesium phosphate cement metallic radioactive waste cement filler Technology Electrical engineering. Electronics. Nuclear engineering TK1-9971 Engineering (General). Civil engineering (General) TA1-2040 Microscopy QH201-278.5 Descriptive and experimental mechanics QC120-168.85
Zdroj:	Materials, Vol 16, Iss 2, p 679 (2023)
Druh dokumentu:	article
ISSN:	1996-1944
DOI:	10.3390/ma16020679
Popis:	This study investigates the effect of coal fly ash (FA), wollastonite (WO), pumice (PM), and metakaolin (MK) as filler materials in the rheological, mechanical, chemical, and mineralogical properties of a magnesium potassium phosphate cement (MKPC), designed for the encapsulation of low and intermediate level radioactive wastes containing reactive metals. Workability, compression strength, dimensional stability, pH, chemical composition, and mineralogical properties were studied in different pastes and mortars of MKPC with a fixed molar ratio of MgO/KH2PO4 = 1. No new mineral phases were found with the addition of the fillers, denoting their low chemical impact on the MKPC system. Moreover, all formulations with a water/cement mass ratio of
Databáze:	Directory of Open Access Journals
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