Repair Mortar
Mostrando 1-6 de 6 artigos, teses e dissertações.
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1. Study of cracks in concrete target under deep penetration by a projectile
Abstract A large number of cracks occur in concrete structure after projectile penetration. The study of crack distribution and propagation process is the basis of damage assessment, structural repair and high dynamic fracture mechanism. In this paper, wire saw cutting, X-ray computed tomography (X-CT) and mechanical property testing of damaged concrete were
Lat. Am. j. solids struct.. Publicado em: 14/03/2019
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2. Characterization of Fiber Reinforced Self-Consolidating Mortars for Use in Patching Damaged Concrete
Abstract This research aims to study the effect of supplementary cementitious materials (SCMs) such as quarry dust limestone (QDL) and natural pozzolana (NP) on the performance of fiber reinforced self-consolidating repair mortars (FR-SCRMs). Based on previous optimization of QDL and NP replacement ratios, two mortar mixtures incorporating 10% QDL and 20% NP
Lat. Am. j. solids struct.. Publicado em: 2017-06
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3. Estudo de tratamentos com lítio no combate da reação álcali-agregado / Study of lithium treatments in mitigating alkali-aggregate reaction
The alkali-aggregate reaction (AAR) is one of the deterioration processes of concrete that most affects the structures of hydroelectric plants, concrete dams and bridges. In recent years, the efficiency of lithium based compounds to mitigate RAA has been proven in both the prevention and repair of the affected structures. With regards to treatment, the main
Publicado em: 2009
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4. Contribuição ao estudo dos métodos de ensaio na avaliação das reações álcali-agregado em concretos. / Contribution to the study of test methods in assessing alkali-aggregate reactions in concrete.
Many concrete structures have been suffering from alkali-aggregate reactions (AAR) since the last decades in Brazil and around the world. The reactions generate expansions that could compromise the strength of a concrete structure as well as its performance in service and its durability. Nowadays, it is completely possible to detect AAR in the field, but rep
Publicado em: 2008
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5. Avaliação de sistemas de reparo para o problema de abrasão do concreto de superfícies úmidas em UHEs
The research field of construction pathology has been steadily growing lately due to natural degradation observed in different structures. In this sense, great attention has been devoted to special concrete structures such as hydroelectric power plants (HPP) because of their complexity and importance, socially as well as economically. One of the pathologies
Publicado em: 2006
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6. A study on shrinkage related cracking on mortars for the repair of concrete structures. / Estudo da fissuração associada à retração em argamassas para reparo em estruturas de concreto.
A durabilidade das estruturas de concreto tem se tornado um assunto de interesse mundial nas últimas duas décadas. Os custos econômicos associados a reparos de estruturas de concreto são cada vez maiores, e cada vez mais a incidência de insucessos nessas intervenções corretivas que não resultam adequadas é reportada. No Brasil a técnica de interven
Publicado em: 2004