The concept of 'end of waste' and recycling of hazardous materials: in depth characterization of the product of thermal transformation of cement-asbestos

Kód výsledku v IS VaVaI

<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F68378297%3A_____%2F14%3A00452505" target="_blank" >RIV/68378297:_____/14:00452505 - isvavai.cz</a>

Výsledek na webu

<a href="http://minmag.geoscienceworld.org/content/78/5/1177.abstract" target="_blank" >http://minmag.geoscienceworld.org/content/78/5/1177.abstract</a>

DOI - Digital Object Identifier

<a href="http://dx.doi.org/10.1180/minmag.2014.078.5.06" target="_blank" >10.1180/minmag.2014.078.5.06</a>

Jazyk výsledku

angličtina

Název v původním jazyce

The concept of 'end of waste' and recycling of hazardous materials: in depth characterization of the product of thermal transformation of cement-asbestos

Popis výsledku v původním jazyce

Selected samples of asbestos-containing material (ACM) with different Ca/Si ratios have been treated thermally at 1200 degrees C for 15 min to obtain an `'end of waste geo-inspired material'. Before and after treatment, micro-Raman spectroscopy allowed the investigation of both powdered and massive samples by directing the laser beam onto crystals with elongated morphology, thin fibres and the matrix. In the raw samples, chrysotile and/or crocidolite were detected. After the thermal treatment, no asbestos phases were identified in the Raman spectra collected on fibrous or fibre-like morphologies. The scanning electron microscopy/energy dispersive spectroscopy investigations confirmed the onset of a pseudomorphic process during annealing, leading to thecomplete transformation of asbestos minerals into non-hazardous magnesium or calcium magnesium silicates such as forsterite, monticellite, akermanite and merwinite.

Název v anglickém jazyce

The concept of 'end of waste' and recycling of hazardous materials: in depth characterization of the product of thermal transformation of cement-asbestos

Popis výsledku anglicky

Selected samples of asbestos-containing material (ACM) with different Ca/Si ratios have been treated thermally at 1200 degrees C for 15 min to obtain an `'end of waste geo-inspired material'. Before and after treatment, micro-Raman spectroscopy allowed the investigation of both powdered and massive samples by directing the laser beam onto crystals with elongated morphology, thin fibres and the matrix. In the raw samples, chrysotile and/or crocidolite were detected. After the thermal treatment, no asbestos phases were identified in the Raman spectra collected on fibrous or fibre-like morphologies. The scanning electron microscopy/energy dispersive spectroscopy investigations confirmed the onset of a pseudomorphic process during annealing, leading to thecomplete transformation of asbestos minerals into non-hazardous magnesium or calcium magnesium silicates such as forsterite, monticellite, akermanite and merwinite.

Druh

J_x - Nezařazeno - Článek v odborném periodiku (Jimp, Jsc a Jost)

CEP obor

JN - Stavebnictví

OECD FORD obor

—

Projekt

<a href="/cs/project/LO1219" target="_blank" >LO1219: Udržitelný pokročilý rozvoj CET</a><br>

Návaznosti

P - Projekt vyzkumu a vyvoje financovany z verejnych zdroju (s odkazem do CEP)

Rok uplatnění

2014

Kód důvěrnosti údajů

S - Úplné a pravdivé údaje o projektu nepodléhají ochraně podle zvláštních právních předpisů

Název periodika

Mineralogical Magazine

ISSN

0026-461X

e-ISSN

—

Svazek periodika

78

Číslo periodika v rámci svazku

5

Stát vydavatele periodika

GB - Spojené království Velké Británie a Severního Irska

Počet stran výsledku

15

Strana od-do

1177-1191

Kód UT WoS článku

000348531400007

EID výsledku v databázi Scopus

2-s2.0-84929250449