Factors affecting durability of concrete repairs

Author(s): Dunja Vla, Predrag Popovic
Paper category: Proceedings
Book title: Proceedings of the International Conference on Sustainable Materials Systems and Structures (SMSS2019) Durability, Monitoring and Repair of Structures
Editor(s): Ana Baričević, Marija Jelčić Rukavina, Domagoj Damjanović, Maurizio Guadagnini
ISBN: 978-2-35158-217-6
e-ISBN: 978-2-35158-218-3
Publisher: RILEM Publications SARL
Publication year: 2019
Pages: 503-510
Total Pages: 848
Language: English

Abstract: Over the years our company has investigated, designed repairs and conducted construction observations during repairs of numerous concrete structures that had significant levels and a wide range of concrete deterioration due to various factors. Some of those included partial and full depth deterioration of reinforced concrete members due to corrosion of embedded reinforcing bars and pre-tensioned and post-tensioned cables, deterioration due to water infiltration through cracks, construction joints, deterioration due to freeze-thaw damage, fire damage and missing or insufficient thermal protection over hot pipes causing constant exposure of concrete to temperatures over 45°C, cracks in concrete due to settlement, and various other conditions. Some distress was due to premature failure of repairs completed in the past either due to material failure or the poor quality of repairs.
Regardless of the extent, cause and severity of concrete deterioration, type of the concrete structure and its use, exposure to various weather conditions, all repairs should meet high quality and durability criteria. Durability of concrete repairs is directly affected by the surface preparation, materials used for the repairs, compatibility of used materials with substrate, dimensional stability, curing procedures, protection methods, application of coatings and methods of construction.

Online publication :2019
Publication type : full_text
Public price (Euros) : 00