Results 121 to 130 of about 941,056 (284)

Desenvolvimento de aglomerantes ecoeficientes com encapsulamento de metais pesados [PDF]

, 2014
Dissertação (mestrado) - Universidade Federal de Santa Catarina, Centro Tecnológico, Programa de Pós-Graduação em Engenharia Civil, Florianópolis, 2014.A produção de aglomerantes para uso na construção civil gera impactos ambientais em vários países do ...
Manfroi, Eliz Paula
core  

Exploring biofiber properties and their influence on biocomposite tensile properties

Polymer International, EarlyView.
The study measured the physical, flow and chemical properties of 10 biofibers. It characterized the tensile properties of derived biocomposites and linked them using regression models, showing robust predictive performance. Abstract Biofibers serve as effective reinforcements for neat polylactic acid (PLA) in biocomposites, offering an attractive ...
Oluwafemi A. Oyedeji, Jocelyn Hess, Xianhui Zhao, Luke Williams, Rachel Emerson, Erin Webb   +5 more
wiley   +1 more source

Critical state of fly ash-bottom ash mixture [PDF]

, 2010
The burning of coal in the process of generating electricity, leads to the production of solid waste such as the fly ash and bottom ash. Numerous studies had been carried out to determine the mechanical properties of fly ash and also bottom ash.
A. Rahman, Marwa
core  

Impact of Plasma Ashing on Mixed Monolayer Doping of Silicon

Small Methods, EarlyView.
Mixed monolayer doping provides a controllable way to introduce phosphorus dopants into silicon. A gentle oxygen‐plasma treatment removes unwanted carbon while maintaining phosphorus on the surface. Following thermal diffusion, the treated silicon shows enhanced near‐surface n‐type behavior, demonstrating how carbon removal can tune molecular doping ...
Pol Torres‐Vila, Thilo Glatzel, Mounir Mensi, Giovanni Boero, Juergen Brugger, Arnaud Bertsch   +5 more
wiley   +1 more source

Reducing the use of Fossil Carbon and Fuels to Defossilize the Electric Steelmaking Route: Evaluation of the Effects of Alternative C‐Bearing Materials and Hydrogen in the Electric Arc Furnace

steel research international, EarlyView.
The experiments and simulations demonstrate that, in general, alternative carbon sources can decrease fossil CO2 without adversely impacting EAF process and product. High plastics and tires ratios cause unsafe conditions and poor slag foaming. Hydrogen in EAF burners decreases CO2 but increases water vapor, which can raise the hydrogen content in ...
Ismael Matino, Orlando Toscanelli, Antonella Zaccara, Aintzane Soto Larzabal, Asier Zubero Lombardia, Jon Hermosa, Tamara Rodríguez Durán, Valentina Colla   +7 more
wiley   +1 more source

The Application of Hydrochar Composite Briquettes for Sustainable Slag Foaming in the Electric Arc Furnace Process

steel research international, EarlyView.
Hydrochar‐mill‐scale briquettes with varying C/O molar ratios (0.07–0.90) have been tested at 1650 °C to evaluate their slag foaming performance for electric arc furnace application. All seven briquette recipes developed succeed in promoting slag foaming.
Yu‐Chiao Lu, Andrey Karasev, Björn Glaser, Chuan Wang   +3 more
wiley   +1 more source

Relationship between drying shrinkage and pore structure of concrete with MSWI bottom ash as sand replacement

Reviews on Advanced Materials Science
To promote resource utilization and large-scale engineering application of municipal solid waste incineration (MSWI) bottom ash, this study systematically investigates the relationship between drying shrinkage and microstructure of concrete incorporating
Zhang Yueming, Shi Dongsheng, Ren Dongdong, Ma Zheng, Su Zhengdong, Qi Linjie   +5 more
doaj   +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, Rafael Ruiz, Borja Regúlez, Carmen Andrade, Hugo Corres, Valle Chozas‐Ligero, Leonardo Todisco   +6 more
wiley   +1 more source

Bond, tension‐stiffening, and cracking in multi‐generational recycled aggregate concrete subjected to shrinkage strains

Structural Concrete, EarlyView.
Abstract The concrete industry is responsible for a significant portion of global waste production and multi‐generation recycled aggregate concrete (MGRAC) is a means to allow the sector to transition to a circular economy framework. To predict the behavior of MGRAC at the member level there is a need to understand the underlying mechanics of bond ...
Lloyd Dadd, Phillip Visintin, Bree Bennett, Tianyu Xie   +3 more
wiley   +1 more source

Evaluation of cold joint effects on the microstructure and mechanical behavior of three‐dimensional printed concrete specimen

Structural Concrete, EarlyView.
Abstract 3D concrete printing (3DCP) is an automated construction technique that uses an extrusion process to fabricate structures efficiently. However, the layer‐by‐layer process can create interlayer weaknesses, and interruptions during printing can result in cold joints, which can negatively affect the structural behavior.
Sung‐Jo Kim, Inken Jette Rasehorn, Dietmar Stephan, Tong‐Seok Han   +3 more
wiley   +1 more source