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Penetração de cloretos em concretos compostos com cinza de lodo de estação de tratamento de água em diferentes teores de adição
(Universidade Federal de Santa Maria, 2017-08-31)
The increasing population growth has been responsible for the increasing demand for drinking water and, therefore, an increase in the amount of waste generated in Water Treatment Stations. In the vast majority of municipalities, ...
Retração total e penetração de cloretos de concretos compostos com cinza de CCA de diferentes teores de carbono grafítico
(Universidade Federal de Santa Maria, 2012-02-27)
The use of agro-industrial by-products with pozzolanic properties has become
an alternative in the cement industry because of the increasing consumption of
cement, aiming at the rational use and sustainability of the ...
Retração total e penetração de cloretos em concretos compostos com cinza de lodo de ETA e outras adições minerais
(Universidade Federal de Santa Maria, 2015-12-16)
The use of mineral additions and substitutions in concrete production is highly beneficial to society. When used as substitutes for cement, they provide an alternative destination to polluting waste while contributing to ...
Resistividade elétrica de concretos de cimento Portland branco e elevados teores de escória de alto forno
(Universidade Federal de Santa Maria, 2008-03-03)
The electrical resistivity is an important concrete property that allows evaluating the access facility of aggressive agents before the corrosion process begins and estimates the velocity of the same process after it begun. ...
Resistividade elétrica de concretos com diferentes teores de escória de alto forno e ativador químico
(Universidade Federal de Santa Maria, 2005-12-15)
The integrity of the rebars in reinforced concrete structures is related to the chemical and physical protection provided by the concrete layer that covers the steel. The destruction of the passivation layer precedes the ...
Resistividade elétrica de concretos contendo diferentes teores de cinza de casca de arroz
(Universidade Federal de Santa Maria, 2005-10-21)
The durability of reinforced concrete structures derives from the protective effect provided by the concrete cover over the steel rebars. When the passivation of the steel is compromised, the whole structure is liable to ...
Influência de materiais de proteção superficial na resistividade elétrica e absorção capilar do concreto
(Universidade Federal de Santa Maria, 2011-01-24)
The durability of concrete structures is the result of protective action of concrete over the rebar. When the passivation of steel ceases to exist the structure
becomes vulnerable to the phenomenon of corrosion, which ...
Características de durabilidade de concretos com cinza volante e cinza de casca de arroz com e sem beneficiamento
(Universidade Federal de Santa Maria, 2011-01-27)
The construction industry has been studying the possibility of using industrial subproducts, as a strategy to remedy the environmental matters, considering that the
sub-products are generated in large quantities and mostly ...
Microestrutura e durabilidade a cloretos de protótipos de concreto com cinza de casca de arroz com e sem moagem prévia
(Universidade Federal de Santa Maria, 2013-02-27)
Cement is the main component of concrete, which is the second most common
material used by man. The cement manufacturing process is largely responsible for
the emission of carbon dioxide in the atmosphere. The construction ...
Estudo da utilização de cinza da casca do arroz residual em concretos estruturais: uma análise da durabilidade aos cloretos
(Universidade Federal de Santa Maria, 2008-03-27)
The use of residues, as the rice husk ash (RHA) in the concrete s production reduces the environmental impact caused in its productive chain. It means fewer energy s
consumption, fewer natural resources waste, less ...