Journal
CONSTRUCTION AND BUILDING MATERIALS
Volume 153, Issue -, Pages 117-128Publisher
ELSEVIER SCI LTD
DOI: 10.1016/j.conbuildmat.2017.07.086
Keywords
Cement replacement; Sand replacement; Concrete masonry units; Industrial by-products; Mechanical properties; Thermal properties
Categories
Funding
- Basque Regional Government [IT781-13]
- UPV/EHU [UFI 11/29]
- Department of Economy and Competitiveness of the Basque Regional Government (EJ-GV)
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Aiming to increase sustainability in the field of construction, this study investigates possible alternative materials, considered as by-products, for the manufacture of greener low-strength concretes, intended for the manufacture of Concrete Masonry Units (CMUs); using sawdust in replacement of sand and wood ash and lime mud in replacement of cement. The by-products are characterized by means of physical and chemical analyses, to determine their potential use in concrete; then ten different concrete mixes, each with different amounts of by-products, and a reference concrete are tested. The effects of these by-products on the density, absorption, voids, compressive strength, thermal conductivity, thermal diffusivity, and specific heat of the concrete are all investigated. (C) 2017 Elsevier Ltd. All rights reserved.
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