Incorporation of Fired Ceramic Waste into Binary and Ternary Earth-Binder(S) Mixtures for Compressed Blocks

authors	Acchar, W; Silva, JB; Silva, VM; Gois, LC; Segadaes, AM
editors	Castanho, SM; Acchar, W; Hotza, D
nationality	International
journal	BRAZILIAN CERAMIC CONFERENCE 57
author keywords	earth-blocks; inorganic binders; ceramic waste
keywords	CONSTRUCTION
abstract	In Brazil, the majority of construction and demolition waste materials (CDW) is sent to waste dumps or landfill sites. Having low cost applications in mind, this work has the purpose of investigating the effect of the incorporation of fired ceramic rubble reclaimed from CDW obtained directly from the building construction industry on the final properties of compressed earth blocks, which are especially interesting in low-income and marginalized communities. To this aim, claybased mixtures containing up to 5 wt.% of ceramic rubble were prepared. Lime and cement were added as binders (6, 8, 10 and 12 wt.%). Cylindrical test pieces were produced by uniaxial compression and left to harden at ambient conditions for 7, 28 and 56 days. The hardened specimens were characterized in terms of microstructure (SEM), compressive strength, water absorption and wear resistance. The results obtained in physical and mechanical evaluation tests demonstrated that small contents of ceramic rubble from the building construction industry can easily be incorporated into compressed earth blocks without degradation of typical properties, enabling savings in cement addition.
publisher	TRANS TECH PUBLICATIONS LTD
issn	0255-5476
isbn	978-3-03835-114-6
year published	2014
volume	798-799
beginning page	498
ending page	+
digital object identifier (doi)	10.4028/www.scientific.net/MSF.798-799.498
web of science category	Materials Science, Ceramics
subject category	Materials Science
unique article identifier	WOS:000347955400082