Buscar
Mostrando ítems 1-10 de 2149
Electrical resistivity measurement of unsaturated concrete samples
(ICE Publishing, 2014-04)
Electrical conduction in concrete primarily occurs via the liquid in pores. Since concrete resistivity is sensitive to moisture content, resistivity can be used to infer other moisture-dependent concrete properties. However, ...
Influence of the moisture content on the dynamic modulus of elasticity of concrete made with recycled aggregate
(ANTAC - Associação Nacional de Tecnologia do Ambiente Construído, 2019)
Contribuição ao estudo da realcalinização química em concreto convencional
(Universidade Tecnológica Federal do ParanáCuritibaBrasilGraduação em Engenharia CivilUTFPR, 2017-12-08)
This Work seeks to contribute in the search of alternatives for the treatment of carbonated concretes, having its focus on applying chemical realkalisation in two different ways. The main goal is to analyze the effectiveness ...
Temperature effects on failure behavior of self-compacting high strength plain and fiber reinforced concrete
(Elsevier, 2018-03)
This work analyzes the effect of temperature on the mechanical behavior up to failure of self-compacting high strength concrete specimens when subjected to three different stress paths, corresponding to the uniaxial ...
Estudo comparativo de ensaios destrutivos e não destrutivos para concreto
(Universidade Tecnológica Federal do ParanáCuritibaDepartamento Acadêmico de Construção Civil, 2012-04-12)
Concrete is the most used material in construction and better suited to resist compressive loads. Since it an indispensable material and that in its aging is subject suffering from various types of conditions and with high ...
Comparativo das propriedades do concreto no estado fresco e endurecido com adição de fibras de aço e de polipropileno
(Universidade Tecnológica Federal do ParanáCuritibaDepartamento Acadêmico de Construção Civil, 2013-06-25)
This academic document presents a study, about a comparison between some
characteristics and properties, in the state fresh and the hardened of concrete: the first sample, is common concrete to be the reference, the second ...
Estudos de parâmetros de dosagem que influenciam as propriedades de concretos permeáveis com agregados reciclados
(Universidade do Vale do Rio dos Sinos, 2020-03-31)
This study aimed to identify dosage parameters that influence mechanical properties and permeability of pervious concretes with and without recycled concrete aggregates. The influence of a 100% natural coarse aggregate ...
Estudos de parâmetros de dosagem que influenciam as propriedades de concretos permeáveis com agregados reciclados
(Universidade do Vale do Rio dos Sinos, 2020-03-31)
This study aimed to identify dosage parameters that influence mechanical properties and permeability of pervious concretes with and without recycled concrete aggregates. The influence of a 100% natural coarse aggregate ...
Análise da influência do empacotamento dos agregados na porosidade do concreto
(Universidade Tecnológica Federal do ParanáCuritibaDepartamento Acadêmico de Construção Civil, 2014-09-09)
The resistance to external actions which the concrete element is subject is related to the porosity of concrete. One of the factors that interfere in resistance is the water / cement ratio, where the higher the water / ...