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Itens para a visualização no momento 21-29 of 29
Carbonatação acelerada em concretos compostos com cinza de casca de arroz de diferentes teores de carbono grafítico
(Universidade Federal de Santa Maria, 2014-02-28)
Carbonation is a natural phenomenon observed in carbon structures, and it is a result of the combined presence of CO2 in the environment and moisture. Carbonation may lower the pH of the concrete to such an extent that the ...
Penetração de cloretos em concretos com diferentes tipos de cimento submetidos a tratamento superficial
(Universidade Federal de Santa Maria, 2010-08-31)
The durability characteristics of concrete should be given the same importance as compressive strength when designing concrete structures. Concrete should be able to
withstand the effects of aggressive agents and behave ...
Percolação de água em concretos com elevados teores de escoria e cinza volante com adição de cal
(Universidade Federal de Santa Maria, 2007-04-26)
The study of concrete structures durability necessarily passes by the study of covercrete and by the understanding of the factors that affect the features of this superficial layer. The use of high contents of mineral ...
Penetração de cloretos em concretos compostos com cimento Portland branco e escória de alto forno, ativados quimicamente
(Universidade Federal de Santa Maria, 2008-02-12)
The consumption of white Portland cement (WPC), in structural concretes, has been growing lately. Thus, targeting diffuse its use, and confirm its quality and durability as structural cement, this work has the aimed to ...
Penetração de cloretos em concretos compostos com diferentes teores de cinza de casca de arroz
(Universidade Federal de Santa Maria, 2004-12-21)
The service life of concrete structures can be extended by controlling aggressive agents often found in the environment that attack concrete. Such agents may cause structures to deteriorate and result in technical losses ...
Penetração de cloretos em concretos compostos com cinza de casca de arroz de diferentes teores de carbono grafítico
(Universidade Federal de Santa Maria, 2013-10-10)
In addition to compressive strength, durability is an important variable to be
taken into account in the mix design of concrete. Concrete must be able to withstand
the action of aggressive agents and function as a ...
Absorção capilar e resistividade elétrica de concretos compostos com cinza de casca de arroz de diferentes teores de carbono grafítico
(Universidade Federal de Santa Maria, 2011-12-15)
There are constant searches for alternatives to reduce the environmental impact in
the production of in consumables, like concrete, that is actually a pollutant. Mineral
additions have been investigated as partial ...
Microestrutura do cobrimento de concretos com altos teores de escória e cinza volante ativadas por cimento portland e cal hidratada
(Universidade Federal de Santa Maria, 2007-03-08)
In the history of the concrete structures there was a time in which the mechanical resistance was the most important property for the designers. However due to amount of pathologies in the concrete structures and your ...
Estudo estatístico de produção de concretos com adições minerais
(Universidade Federal de Santa Maria, 2006-03-24)
The GEPECON, Studies and Researches Concrete Group, has developed a researches collection about the concrete with mineral additions over the last 10 years. Starting from these papers we have decided to gather some projects ...