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Influence of Binders and Lightweight Aggregates on the Properties of Cementitious Mortars: From Traditional Requirements to Indoor Air Quality Improvement

1
Department of Materials, Environmental Sciences and Urban Planning (SIMAU), Università Politecnica delle Marche, 60131 Ancona, Italy
2
Institute of Atmospheric Sciences and Climate, National Research Council (ISAC-CNR), 40129 Bologna, Italy
*
Author to whom correspondence should be addressed.
Materials 2017, 10(8), 978; https://doi.org/10.3390/ma10080978
Received: 15 July 2017 / Revised: 12 August 2017 / Accepted: 18 August 2017 / Published: 22 August 2017
Innovative and multifunctional mortars for renders and panels were manufactured using white photocatalytic and non-photocatalytic cement as binder. Unconventional aggregates, based on lightweight materials with high specific surface and adsorbent properties, were adopted in order to investigate the possible ability to passively improve indoor air quality. The reference mortar was manufactured with traditional calcareous sand. Results show that even if the mechanical properties of mortars with unconventional aggregates generally decrease, they remain acceptable for application as render. The innovative mortars were able to passively improve indoor air quality in terms of transpirability (70% higher), moisture buffering ability (65% higher) and depolluting capacity (up to 75% higher) compared to traditional ones under the current test conditions. View Full-Text
Keywords: mortar; cement; lightweight aggregates; Indoor Air Quality (IAQ); depollution; moisture buffering value mortar; cement; lightweight aggregates; Indoor Air Quality (IAQ); depollution; moisture buffering value
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Giosuè, C.; Pierpaoli, M.; Mobili, A.; Ruello, M.L.; Tittarelli, F. Influence of Binders and Lightweight Aggregates on the Properties of Cementitious Mortars: From Traditional Requirements to Indoor Air Quality Improvement. Materials 2017, 10, 978.

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