Improvement of flexural and cyclic performance of bridge deck slabs by utilizing steel fiber reinforced concrete (SFRC)

Xiang, Da; Liu, Shiqi; Li, Yongjun; Liu, Yuqing

doi:10.1016/j.conbuildmat.2022.127184

Cited by 19 publications

(1 citation statement)

References 26 publications

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“…SHCCs are one of the most representative materials in the field of self-sensing detection owing to their high toughness and durability. These composites are used for various purposes, including constructing roads [1], bridges [2], tunnel linings [3], and other infrastructure.To improve the tensile strength and toughness of cement matrix composites, a certain amount of fiber materials (such as steel [4], polypropylene [5], glass [6], and carbon fibers [7] ) are added to the cement matrix. Reportedly, fiber materials have a bridging effect on cracks and can transfer load between cracks, thus resulting in the reinforcement and toughening of cementitious materials, and improvement in the mechanical properties of cementitious composites [8].…”

Section: Introductionmentioning

confidence: 99%

Piezoresistive properties of strain-hardening cement composite with liquid-type multi-walled carbon nanotubes dispersed by ultrasonicator

Wang

Jeong

Yun

et al. 2023

J. Phys.: Conf. Ser.

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Multi-walled carbon nanotubes (MWCNTs) are a new type of nanomaterial with superior performance. They are frequently used in cement matrices to increase electrical conductivity and as a sensor for monitoring the health of building structures. However, MWCNTs agglomerate easily and are difficult to disperse, which makes their homogeneous dispersion in the matrix material the focus of exploration. In this study, the dispersion method of MWCNTs in strain-hardening cement composites (SHCCs) with corresponding piezoresistance is investigated along with the effects of dispersed and nondispersed MWCNTs on the resistive sensitivity of the composites under monotonic loading. The experimental results indicate that MWCNTs in cement matrix composites can be effectively dispersed by applying ultrasonic energy. In addition, they can significantly increase the piezoresistive sensitivity of the composite.

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