Buscar
Mostrando ítems 41-50 de 765
Influência da dosagem racional do concreto seco na produção de peças de concreto para pavimentação intertravada
(Universidade Tecnológica Federal do ParanáPato BrancoBrasilDepartamento Acadêmico de Construção CivilEngenharia CivilUTFPR, 2015-11-16)
The concrete blocks for interlocking paving, also known as pavers, have been used for decades in some countries, but in Brazil its use only gained popularity in recent years. Still, the lack of quality control and the ...
Alkali-silica reaction in mortars and concretes incorporating natural rice husk ash
(Elsevier, 2012-11)
Rice-husk ash (RHA) is a supplementary cementing material of great interest in many developing countries. Before using in concrete the rice husk needs to be burnt at a controlled temperature. In other conditions a residual ...
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 ...
Tomada de decisão entre sistemas de reforço de estruturas em concreto armado: uma aplicação do método Analytic Hierarchy Process (AHP)
(Universidade Tecnológica Federal do ParanáCuritibaBrasilCurso de Engenharia CivilUTFPR, 2017-06-28)
This study approaches the main strengthening methods for reinforced concrete beams for buildings that are going to have loading increases due to changes in utilization purposes or expansion and renovation. The evaluated ...
Thermo-mechanical assessment of concrete microcracking damage due to early-age temperature rise
(2015)
The pursuit of high early-age strength concrete has led to mixtures with higher heat of hydration rates at early ages which produces higher temperatures and an overall increased risk of cracking. This study uses a two-phase ...
Thermo-mechanical assessment of concrete microcracking damage due to early-age temperature rise
(2015)
The pursuit of high early-age strength concrete has led to mixtures with higher heat of hydration rates at early ages which produces higher temperatures and an overall increased risk of cracking. This study uses a two-phase ...