A Comprehensive Microstructural Analysis for Enhancing Concrete’s Longevity and Environmental Sustainability
J. Environ. Nanotechnol., Volume 13, No 2 (2024) pp. 368-376
Abstract
The environmental factors lessen the durability of concrete by changing the way the elements are linked together. To maximize the building's longevity, the concrete needs to be impermeable. Samples of Portland slag cement concrete of grade M20 that had been produced with and without admixtures as well as with and without reinforcement were taken into account for the current investigation. Samples were initially cured in potable water for 28 days, following which they were subjected to additional exposure in environments containing hydrochloric acid and sulphuric acid for challenging conditions for a subsequent 28-, 56- and 90-day period. All specimens exposed to various environmental circumstances showed a similar pattern of enriching in physical characteristics and diminishing in water absorption, therefore enriching the durability qualities, when the data gathered at intervals of 28, 56, and 90 days of curing were examined. SEM examination revealed a notable refinement in pore structure with aging, confirming age-related pore refinement. XRD analysis performed for phase identification revealed the presence of silica and calcium carbonate in the concrete specimens. This research intends to offer important insights about the appropriateness of Portland Slag Cement in strengthening the resilience and durability of concrete.
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