Results 131 to 140 of about 3,295 (275)
steel research international, EarlyView.This study investigates the reduction behavior of two international iron ores, including a synthetic hematite produced by oxidation of magnetite, in a novel fluidized‐bed kinetic reactor at elevated pressures. The reduction takes place at various temperatures (650°C, 700°C, and 750°C), and various hydrogen partial pressures (30, 55, and 80 vol% H2 ...
Valentina Nigitz +5 more
wiley +1 more source
Jefferson Furnace Employees Hauling Charcoal
, 1920 Reproduction of a photograph depicting Jefferson Furnace employees and a team of oxen hauling about 100 bushels of charcoal. They are identified as William Howell, Eben Davis and Willard Crabtree. Jefferson Furnace was built in 1854. Wilbur Stout, former
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steel research international, EarlyView.This study investigates how slag interacts with magnesia–carbon (MgO–C) refractories under conditions relevant to hydrogen plasma smelting reduction. High‐temperature refractory wear tests are combined with thermodynamic modeling to examine refractory dissolution into slag and slag infiltration into the refractory.
Eeli‐Matti Sassi +4 more
wiley +1 more source
Innovative development and structural behavior of hollow columns using inflatable molds
Structural Concrete, EarlyView.Abstract This study introduces a novel approach for constructing hollow columns using precast (PC) methods enhanced by inflatable air tubes as internal molds. The proposed method addresses practical challenges in conventional hollow column construction, such as limited constructability, high production cost, and interference between internal molds and ...
Soo Hyung Kim +3 more
wiley +1 more source
Structural Concrete, EarlyView.Abstract Steam curing is commonly used to manufacture precast culverts to accelerate early strength development. This study investigates the effect of supplementary cementitious materials (SCMs) on the permeability properties of steam‐cured precast concrete culverts.
Saugat Humagain +3 more
wiley +1 more source
, 1920 Reproduction of a photograph depicting a crew of laborers at the Jefferson Furnace in Jackson County, Ohio. The crew members are identified as Amos Crabtree, Fred Heading, John Wilson, John Wilson Jr. and Ellory Manring.
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Structural Concrete, EarlyView.Abstract The use of fiber reinforced concrete (FRC) in precast tunnel segments is among the most established and representative applications of this material. Over the past two decades, numerous tunnel linings were constructed with partial or total substitution of conventional steel reinforcement by fibers, this yielding to quantifiable benefits in ...
Vladimir Rusanov +4 more
wiley +1 more source
Buckhorn Furnace manager's house photograph
, 1920 This image is a reproduction of a photograph depicting the house occupied by the manager of Buckhorn Furnace in Lawrence County, Ohio. The original photograph was taken between 1865 and 1877.
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Structural Concrete, EarlyView.Abstract Cold weather conditions impose substantial constraints upon the performance and long‐term resilience of concrete materials. Alkali‐activated slag (AAS) presents itself as a promising substitute, exhibiting sustained hydraulic activity even when exposed to ambient conditions characterized by low temperatures.
Zeynep Bahçeci +3 more
wiley +1 more source
Durability performance of a high‐performance fiber‐reinforced concrete for bridge applications
Structural Concrete, EarlyView.Abstract This paper investigates the durability performance of a coarse‐aggregate high‐performance fiber‐reinforced concrete (HPFRC) developed as a cost‐efficient material solution for precast bridge applications. A comprehensive experimental program was conducted to assess the resistance of the material to the principal deterioration mechanisms ...
Rolando Baldiviezo +6 more
wiley +1 more source