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Influence of radiopacifying agents on the solubility, pH and antimicrobial activity of Portland cement
(2012-09-01)
The aim of this study was to evaluate the interference of the radiopacifiers bismuth oxide (BO), bismuth carbonate (BC), bismuth subnitrate (BS), and zirconiun oxide (ZO) on the solubility, alkalinity and antimicrobial ...
Influence of radiopacifying agents on the solubility, pH and antimicrobial activity of Portland cement
(2012-09-01)
The aim of this study was to evaluate the interference of the radiopacifiers bismuth oxide (BO), bismuth carbonate (BC), bismuth subnitrate (BS), and zirconiun oxide (ZO) on the solubility, alkalinity and antimicrobial ...
Influence of addition of calcium oxide on physicochemical properties of Portland cement with zirconium or niobium oxide
(2015)
Context: Calcium oxide (CaO) may be added to mineral trioxide aggregate (MTA) or Portland cement (PC) to improve physicochemical and biological properties. Aims: To evaluate the physicochemical properties of PC associated ...
Analysis of high plasticity clayey soil improvement at subgrade level through Portland cement added to decrease volumetric change
(Institute of Physics Publishing, 2020-02-28)
This research includes the potential for resistance and the expansion that the soil presents, this evaluation was carried out through CBR tests. The soil cement technique was used to improve the physical and mechanical ...
Uma análise preliminar da energia embutida no cimento considerando Brasil e Reino Unido
(Universidade Federal de Santa MariaBrasilUFSMCentro de Tecnologia, 2017-07-15)
Since the 1970’s energy crisis, search for a reduction in energy consumption in the
production processes has increased. One of the most used methods in this context,
refers to the energy embedded in the product, which ...
Dimensional stability of materials based on Portland cement at the early stages
(Spie, 2014-09)
In this work two fiber optic sensing techniques are used to study the dimensional stability in fresh state of different cementitious materials. A conventional Portland cement mortar and two commercial grouts were selected. ...
Estudo da adição de cinza de folha de bananeira em argamassas
(Universidade Tecnológica Federal do ParanáCuritibaDepartamento Acadêmico de Construção Civil, 2011-11-22)
Brazil stands out among the world's leading producers of bananas, in 2008 the country held the fourth place with a production of 7.1 million tons in about 514,000 bushels, which is about 94.63 million of tons of ash of ...
Utilização da cinza da madeira de eucalipto na substituição parcial do cimento Portland em argamassa
(Universidade Tecnológica Federal do ParanáPato Branco, 2013-09-17)
Brazil is one of the leading manufacturers and suppliers of world foods, being the third largest producer of corn. Grown in different production systems, the smallest part of the production meets consumption in the tables ...