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Eco-fired clay bricks made by adding spent coffee grounds: a sustainable way to improve buildings insulation

dc.contributor.authorMuñoz Velasco P.
dc.contributor.authorMendívil M.A.
dc.contributor.authorMorales M.P.
dc.contributor.authorMuñoz L.
dc.date.accessioned2020-09-02T22:24:07Z
dc.date.available2020-09-02T22:24:07Z
dc.date.issued2016
dc.identifier10.1617/s11527-015-0525-6
dc.identifier.citation49, 1-2, 641-650
dc.identifier.issn13595997
dc.identifier.urihttps://hdl.handle.net/20.500.12728/5498
dc.descriptionThis paper shows a research for lightweight bricks development, by improving thermal properties, which has been carried out in partnership with a brick factory. The aim is to describe the thermal behavior of fired clay bricks made by spent coffee grounds in order to obtain better enclosure insulation. Organic substances combust within the matrix, during the firing process and an increased porosity is obtained. Therefore brick thermal conductivity is reduced. However, this porosity influences other parameters that determine the usability of the bricks, such as the percentage of water absorption and compressive strength, mainly. Several tests have been conducted for different percentages of waste in order to obtain bricks that meet with the regulatory requirements, settled by standards but with the minimum thermal conductivity. The results have been analyzed and related to previous researches concluding that is possible to add 17 % of waste while bricks compressive strength is above 10 N/mm2 which means they can be used for structural purposes. However bricks made by adding 17 % must be coated, therefore must not be used for facing bricks. In this case thermal conductivity is reduced up to 50 %. © 2015, RILEM.
dc.language.isoen
dc.publisherKluwer Academic Publishers
dc.subjectCompressive strength
dc.subjectEco-bricks
dc.subjectLightweight clay
dc.subjectSpent coffee grounds
dc.subjectThermal conductivity
dc.subjectWater absorption
dc.subjectCompressive strength
dc.subjectPorosity
dc.subjectThermal conductivity
dc.subjectThermal insulation
dc.subjectWater absorption
dc.subjectFired clay bricks
dc.subjectFiring process
dc.subjectLightweight brick
dc.subjectOrganic substances
dc.subjectPercentage of water absorptions
dc.subjectRegulatory requirements
dc.subjectSpent coffee grounds
dc.subjectThermal behaviors
dc.subjectBrick
dc.titleEco-fired clay bricks made by adding spent coffee grounds: a sustainable way to improve buildings insulation
dc.typeArticle


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