Microstructure and Durability of Ground Granulated Blast Furnace Slag Cement Mortars

Microstructure and Durability of Ground Granulated Blast Furnace Slag Cement Mortars

Ground granulated blast furnace slag is an eco-friendly material with regard to its production process and usage. In this study, slag cement (SC) is used to prepare different slag cement mortar (SCM) mixes to study mortar microstructure perspectives, physiochemical properties, mechanical properties...

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Bibliographic Details
Published in:Iranian journal of science and technology. Transactions of civil engineering Vol. 45; no. 3; pp. 1457 - 1465
Main Authors: Saafan, Mohammed A., Etman, Zeinab A., El lakany, Doaa M.
Format: Journal Article
Language:English
Published: Cham Springer International Publishing 01-09-2021
Springer Nature B.V
Subjects:
Cement
Civil Engineering
Compressive strength
Durability
Engineering
GGBS
Granulation
High temperature
Mechanical properties
Microstructure
Mortars (material)
Physiochemistry
Research Paper
Scanning electron microscopy
Slag
Slag cements
Synergistic effect
X-ray diffraction
Durability
SEM
XRD
GGBFS
Heat of hydration
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Summary:Ground granulated blast furnace slag is an eco-friendly material with regard to its production process and usage. In this study, slag cement (SC) is used to prepare different slag cement mortar (SCM) mixes to study mortar microstructure perspectives, physiochemical properties, mechanical properties and durability performance. The tests also included the evaluation of SC setting time and slag activity index. Test results showed that the used slag cement had a high activity index and prolonged initial setting time. SCM demonstrated positive synergistic effects on late compressive strength, enhanced durability against sulfates and acid attacks. Also, SCMs seem to produce a more stable structure at elevated temperatures. Strength and durability improvement was correlated with an improved microstructure as indicated by scanning electron microscope and X-ray diffraction analyses.
ISSN:2228-6160
2364-1843
DOI:10.1007/s40996-020-00533-3