Preparation of Aligned Steel Fiber Reinforced Cementitious Composite and Its Flexural Behavior

Ru Mu; Luansu Wei; Xiaowei Wang; Hui Li; Longbang Qing; Jian Zhou; Quanming Zhao

doi:10.3791/56307

Préparation des fibres en acier alignés renforcés composites cimentaires et son comportement en f...

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Preparation of Aligned Steel Fiber Reinforced Cementitious Composite and Its Flexural Behavior

Préparation des fibres en acier alignés renforcés composites cimentaires et son comportement en flexion

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11:07 min

June 27, 2018

DOI: 10.3791/56307-v

Ru Mu¹, Luansu Wei¹, Xiaowei Wang¹, Hui Li¹, Longbang Qing¹, Jian Zhou¹, Quanming Zhao²

¹School of Civil and Transportation Engineering,Hebei University of Technology, ²School of Information Engineering,Hebei University of Technology

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Overview

This protocol describes a method for manufacturing aligned steel fiber reinforced cementitious composite using a uniform electromagnetic field. This innovative approach enhances the mechanical properties of the composite compared to traditional fiber reinforced concrete.

Key Study Components

Area of Science

Materials Science
Civil Engineering
Composite Materials

Background

Steel fiber reinforced composites are known for their enhanced mechanical properties.
Traditional methods of manufacturing these composites may not achieve optimal alignment of fibers.
Electromagnetic fields can be utilized to align fibers effectively.
Understanding mortar workability is crucial for specimen preparation.

Purpose of Study

To develop a method that produces superior steel fiber reinforced cementitious composites.
To demonstrate the effectiveness of electromagnetic fields in aligning steel fibers.
To improve the mechanical properties of cementitious composites.

Methods Used

Application of a uniform electromagnetic field during the manufacturing process.
Preparation of fresh cementitious composites with short steel fibers.
Use of a sinking depth meter to assess mortar workability.
Utilization of a coaxial rotational mortar rheometer for testing.

Main Results

The aligned steel fiber reinforced cementitious composite shows improved mechanical properties.
Electromagnetic alignment significantly enhances the reinforcement capability of the fibers.
Workability tests indicate optimal conditions for specimen preparation.
Demonstrations by a team of researchers provide practical insights into the method.

Conclusions

The use of electromagnetic fields is a promising technique for manufacturing advanced composites.
This method can lead to better performance in construction materials.
Future studies may explore further enhancements and applications of this technology.

Frequently Asked Questions

What are the advantages of using electromagnetic fields in composite manufacturing?

Electromagnetic fields help align steel fibers, enhancing the mechanical properties of the composite.

How does the workability of mortar affect specimen preparation?

Proper workability ensures that the mortar can be easily manipulated and forms a strong bond in the composite.

Who contributed to the demonstration of this method?

The demonstration involved Associate Professor Xiaowei Wang, Professor Jian Zhou, Graduate Student Luansu Wei, and Doctoral Student Hui Li.

What equipment is necessary for testing mortar workability?

A sinking depth meter and a coaxial rotational mortar rheometer are essential for assessing workability.

Can this method be applied to other types of composites?

While this study focuses on cementitious composites, the principles may be adapted for other materials.

What are the potential applications of aligned steel fiber reinforced composites?

These composites can be used in construction, infrastructure, and other engineering applications requiring high strength materials.

Ce protocole décrit une méthode de fabrication composite cimentaire renforcé fibre acier alignés en appliquant un champ électromagnétique uniform. Composite cimentaire renforcé fibre acier alignés présente des propriétés mécaniques supérieures au béton renforcé de fibres ordinaires.

Cette méthode produit un composite cimentaire renforcé de fibres d’acier qui est supérieur à ceux fabriqués avec les techniques précédentes. Le principal avantage de cette technique est que les fibres d’acier courtes ont besoin de composites cimentaires frais alignés par champ électromagnétique, ce qui augmente considérablement la capacité à renforcer les échantillons. Plusieurs personnes aideront à faire la démonstration des procédures.

Xiaowei Wang, professeur agrégé, Jian Zhou, Luansu Wei, étudiant diplômé, et Hui Li, doctorant, Connaissant la maniabilité du mortier, est essentiel pour préparer des échantillons. Munissez-vous d’un profondimètre d’enfoncement pour caractériser le mortier. De plus, disposer d’un rhéomètre à mortier rotatif coaxial prêt pour les essais de maniabilité.

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Ingénierie numéro 136 acier béton renforcé de fibres aligné les fibres d’acier composites cimentaires champ électromagnétique dureté résistance à la flexion distribution de fibre facteur d’efficacité de l’orientation mortier