Characterization of fibers as rockwool for insulation obtained from canary islands basalts

Autor: J. M. Cáceres, J. E. García Hernández, J. María Rincón
Jazyk: English<br />Spanish; Castilian
Rok vydání: 1996
Předmět:
Zdroj: Materiales de Construccion, Vol 46, Iss 242-243, Pp 61-78 (1996)
Druh dokumentu: article
ISSN: 0465-2746
1988-3226
DOI: 10.3989/mc.1996.v46.i242-243.530
Popis: Glass fibers in the shape of wool were obtained at laboratory scale from three samples of basaltic rocks from the Tenerife Island. The rockwool is widely used as thermal and acoustical insulation. The ability of these rocks to be fiberized was studied by means of the viscosity curves and can be quite improved by adding calcium and magnesium. The experimental fibers obtained from the rocks directly or mixed with either CaCO3 or CaMg(CO3)2 ye characterized in terms of chemical composition, microstructure and thermal and mechanical properties. These properties were compared with the ones determined for four commercial samples of rockcwool, founding that they are very close. This gives good prospects to these fibers from Canarian basalts as insulation material.
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