Affiliation:
1. Department of Civil Engineering, College of Engineering, University of Hafr Al Batin, P.O. Box 1803, Hafr Al Batin 39524, Saudi Arabia
Abstract
Fourier-transform infrared (FTIR) spectroscopy is a fast and simple technique for functional group identification. This work provides a review and insight into the application and interpretation of FTIR spectroscopy for cementitious binders that comprise ordinary Portland cement, alkaline-activated binders, geopolymers, and material characterization for civil engineering material applications. This technique can be used to identify different compounds and a moiety of bond vibrations in inorganic molecules such as Si-O, -OH, H-O-H (water), C-O (carbonate or carbonation), aluminosilicate (Si-O-T, where T is Al or Si), and S-O (sulfate or gypsum) found in hydrated cement, alkaline binders, and geopolymers. The prominent bands include those representing carbonation (CO32− 1390–1475 cm−1), calcium carbonate (871, 1792–2516 cm−1), hydroxylation and water molecules (1607, 3400–3650 cm−1), strength skeletal framework compositions or Al-Si substitutions, silicate organization (C-A-S-H, N-A-S-H, or C-S-H (950–1055 cm−1), and sulfate (600–680, 1080–1100 cm−1). Some of the factors that could affect the spectra bands include elemental displacement due to changes in molar mass, activated temperature, pH, activator concentration, w/b ratio, Ca/Si ratio, Si/Al ratio, and the silica modulus (SiO2/Na2O) of the activators used in the binder synthesis. The method could be used for destructive and non-destructive testing on paste sample by using transmission and attenuated total reflectance methods, respectively.
Funder
Research and Innovation Ministry of Education in Saudi Arabia
Subject
Fluid Flow and Transfer Processes,Computer Science Applications,Process Chemistry and Technology,General Engineering,Instrumentation,General Materials Science
Reference122 articles.
1. FTIR spectroscopic study of intercalated kaolinite;Frost;J. Mol. Struct.,1997
2. Recycling of rice husks ash for the preparation of resistant, lightweight and environment-friendly fired bricks;Ketov;Constr. Build. Mater.,2021
3. The Effect of Inorganic Salt contamination on the strength and durability of geopolymers;Lee;Colloids Surf. A Physicochem. Eng. Asp.,2002
4. The effect of metal contaminants on the formation and properties of waste-based geopolymers;Cem. Concr. Res.,1999
5. Davidovits, J. (2011, January 18–20). Application of Ca-based geopolymer with blast furnace slag, a review. Proceedings of the Second International Slag Valorisation Symposium, Leuven, Belgium.
Cited by
12 articles.
订阅此论文施引文献
订阅此论文施引文献,注册后可以免费订阅5篇论文的施引文献,订阅后可以查看论文全部施引文献