Geocement-Based Coatings for Repair and Protection of Concrete Subjected to Exposure to Ammonium Sulfate

Pavlo V. Kryvenko; Sergii G. Guziy; Vladimir Ivanovich Kyrychok

doi:10.4028/www.scientific.net/AMR.923.121

Paper Titles

Analysis of Relations for Determination of Parameters of Various Types of Concrete Based on Ultrasonic Pulse Method Measurement
p.99

Analyzing of Alternative Raw Materials for Production of Cement-Bonded Particle Boards
p.108

Chemical Grouting Method and its Effectiveness for Protection of Autoclaved Aerated Concrete Masonry
p.112

Evolution of Reconstruction of Plecnik Footbridge at Prague Castle
p.117

Geocement-Based Coatings for Repair and Protection of Concrete Subjected to Exposure to Ammonium Sulfate
p.121

Options of Assessment of Absorption Capacity of Noise Barrier
p.125

Production Possibilities of Concrete Based on Artificial Fly Ash Aggregates
p.130

Shrinkage-Compensating Alkali Activated Slag Cement Mortars for Crack Repair and Joint Grouting in Concretes
p.134

Surface Modification of Fresh Placed Concrete and its Durability at Effect of Defrosting Substances
p.138

HomeAdvanced Materials ResearchAdvanced Materials Research Vol. 923Geocement-Based Coatings for Repair and Protection...

Geocement-Based Coatings for Repair and Protection of Concrete Subjected to Exposure to Ammonium Sulfate

Abstract:

The geocement-based coatings for repair and protection of concrete structures of which the installations for production of biogas, water supply and sewage water disposal pipelines are made have been developed and have been tried in practice. Resistance of the developed coatings in an aggressive environment (5 % solution of ammonium sulfate) as well as basic physico- chemical processes taking place during interaction of the ammonium salts with the geocements have been studied and the results are discussed. A conclusion was made that among other geocement hydration products which can resist attacks of sulfate-ammonium ions, faujasite, chabazite and mordenite had the highest resistance, whereas heulandite and hydrosodalite have the lowest resistance. This assumption is in agreement with the outcomes of other researchers. The results of examination show that the ammonium-containing zeolites have been synthesized within the hydration products, these were: ammonium analcime, (NH₄, Na)-zeolite-E, zeolite a, zeolite ZK-21 and NH₄-zeolite-W. The coated concrete (a geocement (Na₂O×Al₂O₃×6SiO₂×30 H₂O)-based coating)) is found to be corrosion resistant in aggressive environment containing ammonium sulfates: its coefficient of resistance is 1.01, being at an age of 30 days by 1.2 times higher compared to that of the uncoated concrete of the same age.

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Periodical:

Advanced Materials Research (Volume 923)

Pages:

121-124

DOI:

https://doi.org/10.4028/www.scientific.net/AMR.923.121

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Online since:

April 2014

Authors:

Pavlo V. Kryvenko*, Sergii G. Guziy, Vladimir Ivanovich Kyrychok

Keywords:

Aggressive Environment, Ammonium Sulfate, Coating, Concrete, Geocement, Protection, Repair, Zeolite

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