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Evaluation of the use of slag from the mining of au and ag as a replacement of the sand in cement mortars
(Planta Piloto de Ingeniería Química, 2017-04)
To the benefit of gold minerals, extraction processes are generally applied by carrying out cyanidation and subsequent smelting to obtain dore thereby generating slags. The properties of the slag obtained vary depending ...
Industrial Byproduct-Based Concrete Subjected to Carbonation. Electrochemical Behavior of Steel Reinforcement
(ESG, 2012)
Samples of ASTM A-706 structural steel embedded in different concretes obtained from mixtures of alkali-activated steel slag and fly ash were exposed to accelerated carbonation under controlled conditions (4% CO2, 65% RH ...
Characterization of mixed waste of granite and LD slag
(ESCOLA DE MINAS, 2011)
This study focuses on the technical feasibility of the utilization of waste from the cutting of granite to adjust the chemical composition of slag from steelworks LD, targeting the addition of clinker Portland cement. For ...
Reduction of chilean copper slags: a case of waste management project
(2005)
The Chilean copper smelters are producing large amount of copper slags. These copper slags are deposited at landfills. In the present time, a huge amount of copper slags are accumulated in Chile. The main problem with ...
Contribuição ao estudo de cimentos supersulfatados: formulação e mecanismos de hidratação
(Universidade Tecnológica Federal do ParanáPato BrancoPrograma de Pós-Graduação em Tecnologia de Processos Químicos e Bioquímicos, 2015-03-31)
In recent years, considerable attention has been given to the development of special cements that can reduce CO2 emissions and energy and the consumption of limestone. Supersulfated cement are mainly composed of blast ...
Modeling portland blast-furnace slag cement high-performance concrete
(AMER CONCRETE INST, 2004)
This research focused on portland blast-furnace slag cement high-performance concrete (HPC), with specified 28-day compressive strengths between 60 to 110 MPa. Compressive and flexural strength, elastic modulus, abrasion ...
Resistividade elétrica de concretos de cimento Portland branco e elevados teores de escória de alto forno
(Universidade Federal de Santa MariaBREngenharia CivilUFSMPrograma de Pós-Graduação em Engenharia Civil, 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. ...
Otimização da dosagem de escória alto-forno e demais componentes para produção de cimento supersulfatado
(Universidade Tecnológica Federal do ParanáFrancisco BeltraoBrasilMétodos Matemáticos AplicadosUTFPR, 2019-11-09)
Portland cement is one of the most used products in construction. However, its production process causes some irreversible environmental impacts. Studies to minimize the environmental impacts caused by Portaland Cement ...
The use of thermogravimetric analysis to characterize the metallic slag aggregates in structural concrete
(2020-01-01)
Structural concretes must have a set of chemical characteristics to present a satisfactory resistance to the degradation in environment conditions. Besides the several types of mineralogical compositions, the calcium-rich ...