Nano-mechanical behavior of the interfacial transition zone between steel-polypropylene fiber and cement paste

Xu, Lihua; Deng, Fangqian; Chi, Yin

doi:10.1016/j.conbuildmat.2017.04.035

Cited by 118 publications

(43 citation statements)

References 58 publications

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“…The microstructure of the ITZ around the aggregate has been researched, for example, by Scrivener et al (2004), Gao et al (2013), Diamond and Huang (2001) and Horne et al (2007). The characteristics of the ITZ around the fibre depend on its surface and material properties (Ranjbar et al 2016;Xu et al 2017). The properties of the interface between the steel fibre and the cementitious matrix have been examined by several studies employing different micro-characterisation methods, including scanning electron microscopy (SEM) (Wang et al 2009;Igarashi et al 1996;Lee and Jacobsen 2011), nano-indentation (Wang et al 2009;Xu et al 2017), polarising microscopy (Uygunoglu 2008).…”

Section: Introductionmentioning

confidence: 99%

“…The characteristics of the ITZ around the fibre depend on its surface and material properties (Ranjbar et al 2016;Xu et al 2017). The properties of the interface between the steel fibre and the cementitious matrix have been examined by several studies employing different micro-characterisation methods, including scanning electron microscopy (SEM) (Wang et al 2009;Igarashi et al 1996;Lee and Jacobsen 2011), nano-indentation (Wang et al 2009;Xu et al 2017), polarising microscopy (Uygunoglu 2008). The results received by Lee and Jacobsen (2011) from the bending tests on the samples made of ordinary Portland cement (OPC) with 10% of silica fume (SF) substituting the clinker, indicated elastic deformations before the debonding of the fibre.…”

Section: Introductionmentioning

confidence: 99%

“…The research work reported in Xu et al (2017) utilized nano-indentation and SEM, EDX, and X-ray diffraction (XRD) to characterize the composition and the mechanical properties of the ITZ as a function of the distance from the steel and polypropylene fibres. They pointed out that the fibre material influenced the microstructure of the ITZ and its composition.…”

Section: Introductionmentioning

confidence: 99%

“…The higher wettability of the steel fibre surface was explained to lead to a more efficient contact with water-based geopolymers. Xu et al (2017) and Ranjbar et al (2016) noted that a uniform and proper wetting of the fibre surface can refine the compaction of the hydration phases in the vicinity of fibre leading to the finer pores and improved bonding.…”

Section: Introductionmentioning

confidence: 99%

See 3 more Smart Citations

Roughness of Steel Fibre and Composition of Cement Paste Close to Fibre Surface

Eik

Antonova

Puttonen

2019

ACT

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The SEM and EDX methods were used to study both the profile along the perimeter of steel fibres and the composition of the cement paste close to the fibre surface. The paste was made of cement clinker blended with slag and limestone. The results indicate that a wavelength of 31.5 μm and an amplitude of 0.925 μm represent the changes of fibre radius on average, which can be used to estimate the size of empty spaces that particles touching the fibre surface may create and the particles that are able to fill these empty spaces. EDX line analyses in four orthogonal directions from the fibre surface were performed with a step of 0.5 μm along the lines of 60 μm. The distributions of elements indicated that the steel fibre mostly affected the relative amounts of Ca and Si. The comparison between the Si/Ca and Al/Ca ratios pointed out the absence of the AFm type phase close to the fibre surface and that the CSH gel was mostly intermixed with CH, as only a small amount of the AFt type phase was observed. Generally, the counts describing the existence of the CSH gel were larger than those of the CH within a distance of 60 μm from the fibre surface. The counts were closest to each other at about 20 μm from the fibre surface, where the CSH gel had its minimum and CH its maximum value.

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Section: Introductionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

See 2 more Smart Citations

Roughness of Steel Fibre and Composition of Cement Paste Close to Fibre Surface

Eik

Antonova

Puttonen

2019

ACT

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“…This topic [24] presents the elastic behavior of the ITZ between steel/polypropylene fiber and pure cement paste through nanoindentation for different water/cement ratios.…”

Section: Introductionmentioning

confidence: 99%

Mechanical Properties of Fiber-Reinforced Concrete Using Composite Binders

Fediuk

Smoliakov

Muraviov

2017

Advances in Materials Science and Engineering

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This paper investigates the creation of high-density impermeable concrete. The effect of the "cement, fly ash, and limestone" composite binders obtained by joint grinding with superplasticizer in the varioplanetary mill on the process of structure formation was studied. Compaction of structure on micro-and nanoscale levels was characterized by different techniques: X-ray diffraction, DTA-TGA, and electron microscopy. Results showed that the grinding of active mineral supplements allows crystallization centers to be created by ash particles as a result of the binding of Ca(OH) 2 during hardening alite, which intensifies the clinker minerals hydration process; the presence of fine grains limestone also leads to the hydrocarboaluminates calcium formation. The relation between cement stone neoplasms composition as well as fibrous concrete porosity and permeability of composite at nanoscale level for use of composite binders with polydispersed mineral supplements was revealed. The results are of potential importance in developing the wide range of fine-grained fiber-reinforced concrete with a compressive strength more than 100 MPa, with low permeability under actual operating conditions.

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Effects of Polypropylene Fibers from Single-Use Facemasks on the Microstructure of Normal Cementitious Composites

Carabbacan,

Amatosa

2023

Environmental Science and Engineering

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Nano-mechanical behavior of the interfacial transition zone between steel-polypropylene fiber and cement paste

Cited by 118 publications

References 58 publications

Roughness of Steel Fibre and Composition of Cement Paste Close to Fibre Surface

Roughness of Steel Fibre and Composition of Cement Paste Close to Fibre Surface

Mechanical Properties of Fiber-Reinforced Concrete Using Composite Binders

Effects of Polypropylene Fibers from Single-Use Facemasks on the Microstructure of Normal Cementitious Composites

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