Influence of curing on pore properties and strength of alkali activated mortars

MANGAT, Pal and OJEDOKUN, Olalekan (2018). Influence of curing on pore properties and strength of alkali activated mortars. Construction and Building Materials, 188, 337-348.

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Abstract

The paper investigates the effect of wet/dry, wet and dry curing on the pore properties and strength of an alkali activated cementitious (AACM) mortar. The pore characteristics were determined from the cumulative and differential pore volume curves obtained by mercury intrusion porosimetry. AACM mortars possess a bimodal pore size distribution while the control PC mortar is unimodal. AACM mortars have a lower porosity, higher capillary pore volume, lower gel pore volume and lower critical and threshold pore diameters than the PC mortar which indicate greater durability potential of AACMs. Wet/dry curing is optimum for AACM mortars while wet curing is optimum for the PC mortar. Shrinkage and retarding admixtures improve the strength and pore structure of the AACMs.

Item Type:	Article
Research Institute, Centre or Group - Does NOT include content added after October 2018:	Materials and Engineering Research Institute > Structural Materials and Integrity Research Centre > Centre for Infrastructure Management
Departments - Does NOT include content added after October 2018:	Faculty of Science, Technology and Arts > Department of Engineering and Mathematics
Identification Number:	https://doi.org/10.1016/j.conbuildmat.2018.07.180
Page Range:	337-348
Depositing User:	Carmel House
Date Deposited:	10 Sep 2018 15:03
Last Modified:	18 Mar 2021 03:37
URI:	https://shura.shu.ac.uk/id/eprint/22442

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