Shrinkage-Compensating Alkali Activated Slag Cement Mortars for Crack Repair and Joint Grouting in Concretes

Abstract:

Physico-chemical processes of hardening of a cement stone are accompanied with shrinkage is known to result in crack formation, loss of concrete structure integrity and finally, to shorter service life. These drawbacks make problems in using traditional portland cement based mortars for joint grouting and crack repair in concretes. Known-in-the-art solutions based on calcium aluminate cements are also not efficient due to high cost and instability of cement stone hydration products over time in various service conditions. Shrinkage-compensating alkali activated slag cement mortars are proposed to solve the problems connected with crack repair and joint grouting. They are simple in preparation and application and have a set of high physico-mechanical properties, excellent durability and reasonable cost.

• Periodical: Advanced Materials Research (Volume 923)
• Pages: 134-137
• DOI: https://doi.org/10.4028/www.scientific.net/AMR.923.134
• Online since: April 2014
• Authors: Pavlo V. Kryvenko*, Grygorii Viktorovich Vozniuk, Anastasia Maksimovna Goncharova, Elena Sergeevna Kavalerova
• Keywords: Alkali Activated Cement, Cement Grouted Joint, Crack Repair, Expansion, Shrinkage

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