Journal
CEMENT & CONCRETE COMPOSITES
Volume 59, Issue -, Pages 107-118Publisher
ELSEVIER SCI LTD
DOI: 10.1016/j.cemconcomp.2015.02.004
Keywords
Water repellent admixtures; Portland limestone cement mortars; Hydration products; Pore size distribution; Siloxanes; Stearates
Funding
- Italian MIUR
Ask authors/readers for more resources
Water-repellent mortars were prepared using different hydrophobic compounds as admixtures. Calcium and zinc stearates, silane/siloxane products (as liquid solution and powder) were mixed into limestone cement mortars for obtaining in-bulk water-repellent mortars suitable for building protection and resistant to the degrading action of water. The influences of the admixtures on the hydration and structure of the designed mortars were investigated by SEM, TG DSC, FT-IR, XRD, and isothermal calorimetry. The effectiveness of these agents against water action was evaluated by using techniques and methods such as mercury intrusion porosimetry, water absorption tests and contact angle measurements. Siloxane products conveyed good water-repellent effectiveness, without strongly influencing the setting and hydration of the binder, while the zinc stearates slowed down the hydration reactions. (C) 2015 Elsevier Ltd. All rights reserved.
Authors
I am an author on this paper
Click your name to claim this paper and add it to your profile.
Reviews
Recommended
No Data Available