1. Evaluation of Methodology for Serotyping Invasive and Nasopharyngeal Isolates of Haemophilus influenzae in the Ongoing Surveillance in Brazil

To assess the magnitude of discrepant results obtained by routine Haemophilus influenzae serotyping, 258 isolates, collected by the epidemiological surveillance system in Brazil from individuals with invasive diseases or carriage, were evaluated by two slide agglutination (SlAg) methods: SlAg method 1, by which strains were initially screened with a serotype

American Society for Microbiology.

2. Copper slag from different dumps in the Atacama Region used in mortars as partial replacement of cement

ABSTRACT The use of copper slag as a partial substitute for cement in mortar preparation was studied. Copper slag samples were collected from three dumps in the Atacama Region (Northern Chile). Mortars of 40x40x160 mm (width, height, length) and curing times of 7, 28 and 90 days were used in mechanical testing. Tests were performed with 0% (control mortar),

Matéria (Rio J.). Publicado em: 10/06/2019

3. Adequação do processo de fabricação de aço LD, utilizando ferro-gusa líquido com baixo teor de silício

One of the most important variables to the success of steel primary refining is slag volume. Although the volume applied by the steelmakers do not vary so much, a reasonable range to be considered range is 70 until 80kg of slag per ton of liquid steel Silicon input on the total charge of BOF influences strongly the slag volume because the refining process mu

IBICT - Instituto Brasileiro de Informação em Ciência e Tecnologia. Publicado em: 25/04/2005

4. Evaluation of mortars produced with Baosteel slag short flow (BSSF) steel slag as fine aggregate

Abstract The objective was to evaluate the influence of Baosteel slag short flow (BSSF) steel slag, a byproduct of a Brazilian steel mill, as a fine aggregate on the properties of fresh state and on the compressive strength of mortars. The experimental work was to characterize the BSSF steel slag and to produce simple mortars (only cement) and mixed mortars

Cerâmica. Publicado em: 2021-03

5. RESISTIVIDADE ELÉTRICA DE CONCRETOS DE CIMENTO PORTLAND BRANCO E ELEVADOS TEORES DE ESCÓRIA DE ALTO FORNO / ELECTRICAL RESISTIVITY OF WHITE PORTLAND CEMENT CONCRETES AND HIGH BLAST FURNACE SLAG CONTENT

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. The electrical resistivity and the oxygen availability are the characteristics that control the corrosion velocity. This work aimed to e

Publicado em: 2008

6. Desenvolvimento de blocos confeccionados com escória proveniente da reciclagem do aço / Development of blocks made with slag from steel recycling

This reasearch aims at evaluating the use of slag from steel making in the production of self-supported blocks for masonry. The largest residual volume generated from the steel making process is the slag, which is used for cement production and paving of roads. There is a lot of researches and papers issued about such subjects. However, the use of slag to ma

Publicado em: 2008

7. Microfissuração e evolução da hidratação de concreto de cimento portland, com e sem adição de escoria, por meio da analise de imagens

Temperature and moist conditions during the curing period have great influence in the development in microstructure, durability and other properties of concrete. Electronic microscopy has been used to analyze the differences in microstructure, degree of hydration and microcracks, on samples submitted to different types of curing. The objective in this resear

Publicado em: 2001

8. Penetração de cloretos em concretos compostos com cimento Portland branco e escória de alto forno, ativados quimicamente / Chloride ion penetration in concretes with white Portland cement and blast furnace slag, chemically activated

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 investigate the effect of concretes compounds with WPC, slag and chemical activator (Na2SO4), on its behavior against chloride ion penetratio

Publicado em: 2008

9. Potencial da escória silicatada na correção da acidez do solo em plantio direto / Slag potential in soil acidity correction under no-tillage

The soil acidity correction under no-tillage systems is a barrier to be beaten in agriculture. The slag, 6,8 times more soluble than lime, could, because of its better solubility, dislocate in deeper soil layers and correct soil acidity there. This work had as objectives to evaluate the mobility in the soil layers of slag in a comparison with lime under no-t

Publicado em: 2009

10. Evaluation of recycled MgO-C bricks and dead-burned dolomite fines in setting slag foaming in the electric arc furnace

Abstract Production cost reduction for the Electric Arc Furnace (EAF) technology is strongly dependent on the efficiency of the electrical energy being introduced into the metal bath. Besides EAF technology, the slag foaming process is currently applied to some other equipment for steel production aiming to save energy, productivity improvements, enhance the

REM, Int. Eng. J.. Publicado em: 2018-03

11. Analysis of carbonation and hydration of BOF steel slag for application as railway ballast

Abstract The reutilization of waste is a valuable alternative for the preservation of natural resources and the environment. In this sense, Basic Oxygen Furnace (BOF) steel slag is one of the most residues generated in steel the industry. It is estimated that for each ton of steel produced, about 150 kg of steel slag is generated in the BOF process. Generall

REM, Int. Eng. J.. Publicado em: 2020-12

12. Investigação de parâmetros do CCR com incorporação de escória granulada de alto forno para utilização como base de pavimentos. / Analysis of mechanical behavior of the RCC with incorporation of granulated blast furnace slag for use as pavement base.

The increasing environmental concerns as well as energy sources shortage leads industry to consider both optimization of production processes and sustainable use and disposal of its by-pass products. In siderurgical steel manufactures the most common by-pass product is the blast furnace slag with emphasis to its granulated shape. This study considered the ev

Publicado em: 2010