Journal
CONSTRUCTION AND BUILDING MATERIALS
Volume 98, Issue -, Pages 217-226Publisher
ELSEVIER SCI LTD
DOI: 10.1016/j.conbuildmat.2015.08.013
Keywords
Alkali-activated slag; Metakaolin; Isothermal calorimetry; Compressive strength; Accelerated carbonation
Categories
Funding
- Universidad del Valle (Colombia)
- COLCIENCIAS
Ask authors/readers for more resources
The effects of activator dose on the properties of alkali-activated slag/metakaolin blends, were studied in fresh and hardened states: heat evolution, strength and accelerated carbonation. High activator concentrations affect the slag dissolution rate, reducing compressive strength when this is the sole precursor. An increased activator concentration favours metakaolin reaction, promoting high strengths and reduced permeability. Metakaolin addition, and increased activator concentrations reduce the susceptibility to carbonation, associated with the refinement of the pore network under extended CO2 exposure. The effect of adding an aluminosilicate precursor to an alkali-activated slag system is strongly dependent on the activator concentration. (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