Development of Repair Mortars Based on Alkali Activated Materials for Application in Chemically Aggressive Surroundings

Abstract:

The paper analyses the possibility of alkali activated materials utilization as matrix for repair mortars, determined for rehabilitation of reinforced concrete structures, exposed to chemically aggressive surroundings. alcali activated materials have owing to their specific properties a high potential especially for utilization in materials determined for specific applications. Materials showing in comparison with the cement matrix significantly higher resistance against the effect of chemical substances are the so-called alkali activated materials. The rehabilitation of reinforced concrete structures exposed to extreme conditions is the area for effective utilization of the alkali activated extraordinary properties.

• Periodical: Advanced Materials Research (Volume 1122)
• Pages: 98-104
• DOI: https://doi.org/10.4028/www.scientific.net/AMR.1122.98
• Online since: August 2015
• Authors: Ámos Dufka*, Jiří Brožovský, Tomáš Melichar
• Keywords: Aggressive Surroundings, Alkali Activated Materials, Durability, Life Cycle

References

[1] Drochytka, R., Dohnálek J., Bydžovský, J., Pumpr, V., Dufka A., Dohnálek P.: Technické podmínky pro sanace betonových konstrukcí TP SSBK III. 1. edition. Sdružení pro sanace betonových konstrukcí (The specifications for the reinstalment of concrete structures TP SSBK III. 1st edition. Association of Concrete Structure reinstalment), Brno 2013, ISBN 978-80-260-2210-7, 262 pages.

[2] Palacios, M., Puertas, F.: Effect of shrinkage reducing admixtures on properities of alkali-activated slagmortars and pastes, Cement and concrete research 2007, 37, 691-702.

DOI: 10.1016/j.cemconres.2006.11.021

[3] Rovnaník, P.: Vliv působení vysokých teplot na stavební materiály na bázi alkalicky aktivovaných pojiv, habilitační práce (The influence of high temperatures on building materials based on alkali-activated binders, habilitation thesis), Vysoké učení technické v Brně (University of Technology in Brno), (2012).

[4] Brylicki, W., Malolepszy, J., Stryczek, S.: Alkali activated cementitious material for drilling operation, in 9th International Congress on the Chemicstry of cement, New Dehli, India 1992, vol. 3, 312-318.

[5] Wu, D., Pei, Y., Huang, B.: Slag-mug mixtures improve cementing operations in China, Oil and Gas Journal, 1996, 95 – 100.

[6] Chen, X., Yang., N.: Influence of polymeric structure of granulated blast furnace slag on their hydraulic activities, In 2nd Beijing International Symposium on Cement and Concrete, Beijing 1989, 346-351.

[7] malolepszy, j., deja, j., brylicky w: Industrial application of slag alkaline in concretes, In 9th international conference on alkaline cements and concretes, Kiev 1994, vol. 2., 989-1001.