Bare face red-brown bricks manufactured with fly ash from the Narcea (Asturias) Coal Power Plan
DOI:
https://doi.org/10.3989/mc.1999.v49.i256.432Abstract
Fly ash, from the Coal Power Plant of Narcea (Asturias), has been used to determine its possible use as a raw material in the bare face red-brown brick manufacture. The correct mould of a ceramic material demands a paste with an adequate plasticity. So, the optimum compositions of humidity, lubricant (talc) and binder (white dextrin) have been investigated. The samples were made by compressing paste into a mould using varying values of pressure and boiling temperature once the cooling speed had been established. Finally, the cooked pieces were submitted to trials demanded by the Basic Construction Norm, to see if they met the required specifications concerning Water Absorption, Suction, Contraction, Resistance to Freezing, Efflorescence and Compressive Strength.
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