RT Journal Article
T1 Towards more sustainable building based on modified Portland cements through partial substitution by engineered feldspars
A1 Enríquez, E.
A1 Torres Carrasco, Manuel
A1 Cabrera, M.J.
A1 Muñoz, D.
A1 Fernández, J.F.
AB Global warming is one of the main problems that facing modern civilization. As buildings consume 40% of total energy, the heating in the cities is a primary concern. Therefore, it seeks to improve sustainable construction materials with better thermal and reflective properties, reducing consumption and heat islands. In this work, mineral and engineered feldspars have been used as partial substitution of white cement, that is widely used in the cladding of façades mainly due to its high whiteness, to improve composites' reflectance and reducing their thermal conductivity. Both feldspars show pozzolanic effect and new composites have superior whiteness and reflectance (greater than12%). Moreover, the engineered feldspar avoids the alkali-silica reaction (ASR) effect in spite of its alkaline content. A reduction of heat of greater than 2 °C after 6 h of solar irradiance is demonstrated for engineered feldspar composite resulting in a good alternative for their implementation as exterior insulation and finish systems.
PB Elsevier Ltd.
SN 0950-0618
YR 2021
FD 2021-02-01
LK https://hdl.handle.net/10016/32057
UL https://hdl.handle.net/10016/32057
LA eng
NO The authors express their thanks to the Project MAT-2017-86450-C4-1-R, CSIC NANOMIND project CSIC2015-60E068 and projects CDTI (IDI-20130894 and IDI-20161120) for their financial support. Dra. E. Enriquez is also indebted to MINECO for a "Torres Quevedo" contract (ref: PTQ-14-07289), which is co-financed with European Social Funds.
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RD 27 jul. 2024