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Parametric model for the analysis of concrete expansion due to alkali-aggregate reaction
(PROFESSIONAL ENGINEERING PUBLISHING LTD, 2008)
The alkali-aggregate reaction (AAR) is a chemical reaction that provokes a heterogeneous expansion of concrete and reduces important properties such as Young's modulus, leading to a reduction in the structure's useful life. ...
Estudo da alterabilidade de um basalto com argilomineral, na região de Toledo, Paraná
(Universidade Tecnológica Federal do ParanáToledoBrasilEngenharia CivilUTFPR, 2018-11-09)
The study of rock alteration is of great importance to evaluate the behavior of rocky material as a building material. Although much research has been developed in this area, the environment is constantly changing and its ...
Creep and Aging Evaluation of Phenol–Formaldehyde Carbon Fiber Composites in Overhead Transmission Lines
(2021-01-01)
The use of reinforced polymers as cores of transmission cables can provide significant advantages compared to traditional steel cores, such as high tensile strength, low thermal expansion coefficients, and low sag between ...
Mitigação da reação álcali-agregado em concreto com o emprego de resíduo de cerâmica vermelha e metacaulim
(Universidade do Vale do Rio dos Sinos, 2017-05-22)
The use of mineral additions through pozzolans, both naturally and artificially, has been adopted by several civil engineering professionals through the partial substitution of cement primarily in the production of concrete ...
Mitigação da reação álcali-agregado em concreto com o emprego de resíduo de cerâmica vermelha e metacaulim
(Universidade do Vale do Rio dos Sinos, 2017-05-22)
The use of mineral additions through pozzolans, both naturally and artificially, has been adopted by several civil engineering professionals through the partial substitution of cement primarily in the production of concrete ...
Constraints on cold dark matter accelerating cosmologies and cluster formation
(AMER PHYSICAL SOC, 2010)
We discuss the properties of homogeneous and isotropic flat cosmologies in which the present accelerating stage is powered only by the gravitationally induced creation of cold dark matter (CCDM) particles (Omega(m) = 1). ...
Effect of a low-level laser on bone regeneration after rapid maxillary expansion
(MOSBY-ELSEVIERNEW YORK, 2012)
Introduction: In this study, we evaluated the effects of a low-level laser on bone regeneration in rapid maxillary expansion procedures. Methods: Twenty-seven children, aged 8 to 12 years, took part in the experiment, with ...
Effect of ductile deformation of quartz-bearing rocks on the alkali-silica reaction
(Elsevier Science, 2010-10)
It has been known for a long time that strained, microcrystalline or cryptocrystalline quartz-bearing aggregates may cause alkali-silica reactions in concrete. Studying the relationship between deformation processes and ...