Number of the records: 1
Preparation of magnesium phosphate cement by recycling the product of thermal transformation of asbestos containing wastes
- 1.
SYSNO ASEP 0429017 Document Type J - Journal Article R&D Document Type Journal Article Subsidiary J Článek ve WOS Title Preparation of magnesium phosphate cement by recycling the product of thermal transformation of asbestos containing wastes Author(s) Viani, Alberto (UTAM-F) RID, ORCID, SAI
Gualtieri, A. F. (IT)Number of authors 2 Source Title Cement and Concrete Research. - : Elsevier - ISSN 0008-8846
Roč. 58, April (2014), s. 56-66Number of pages 11 s. Publication form Print - P Language eng - English Country GB - United Kingdom Keywords cement-asbestos ; chemically bonded ceramics ; waste management ; X-ray diffraction ; amorphous material Subject RIV JN - Civil Engineering R&D Projects LO1219 GA MŠMT - Ministry of Education, Youth and Sports (MEYS) Institutional support UTAM-F - RVO:68378297 UT WOS 000335109300006 EID SCOPUS 84893214360 DOI 10.1016/j.cemconres.2013.11.016 Annotation Asbestos containing wastes have been employed for the first time in the formulation of magnesium phosphate cements. Two samples were mixed with magnesium carbonate and calcined at 1100 and 1300 C. Under these conditions, complete destruction of asbestos minerals is known to occur. The product, containing MgO, after reaction with water-soluble potassium di-hydrogen phosphate, led to the formation of hydrated phases at room temperature. Crystalline and amorphous reaction products were detected, with the latter being likely the meta-stable precursor of the former. Measured strengths were found to be in line with data from the literature, suggesting that this material may be used as cement. The process here described represents a viable recycling opportunity for this class of hazardous wastes. Simultaneous destruction of asbestos minerals and formation of reactive MgO during thermal treatment, bring benefits in terms of energy requirements and preservation of natural resources in cement manufacturing. Workplace Institute of Theoretical and Applied Mechanics Contact Kulawiecová Kateřina, kulawiecova@itam.cas.cz, Tel.: 225 443 285 Year of Publishing 2015 Electronic address http://www.sciencedirect.com/science/article/pii/S000888461400012X
Number of the records: 1