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Review
. 2022 Oct 5;15(19):6904.
doi: 10.3390/ma15196904.

Evaluation of the Performance of Different Types of Fibrous Concretes Produced by Using Wollastonite

Maciej Dutkiewicz  1 , Hasan Erhan Yücel  2 , Fatih Yıldızhan  3
Affiliations
Review

Evaluation of the Performance of Different Types of Fibrous Concretes Produced by Using Wollastonite

Maciej Dutkiewicz et al. Materials (Basel). .

Abstract

Production of cement and aggregate used in cement-based composites causes many environmental and energy problems. Decreasing the usage of cement and aggregate is a crucial and currently relevant challenge to provide sustainability. Inert materials can also be used instead of cement and aggregates, similar to pozzolanic materials, and they have positive effects on cement-based composites. One of the inert materials used in cement-based composites is wollastonite (calcium metasilicate-CaSiO3), which has been investigated and attracted attention of many researchers. This article presents state-of-the-art research regarding fibrous concretes produced with wollastonite, such as mortars, conventional concrete, engineered cementitious composites, geopolymer concrete, self-compacting concrete, ultra-high-performance concrete and pavement concrete. The use of synthetic wollastonite, which is a novel issue, its high aspect ratio and allowing the use of waste material are also evaluated. Studies in the literature show that the use of wollastonite in different types of concrete improves performance properties, such as mechanical/durability properties, and provides environmental-economic efficiency. It has been proven by studies that wollastonite is a material with an inert structure, and, therefore, its behavior is similar to that of a fiber in cementitious composites due to its acicular particle structure.

Keywords: durability properties; fibrous concrete; mechanical properties; wollastonite.

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Conflict of interest statement

The authors declare no conflict of interest.

Figures

Figure 1
Figure 1
SEM image of wollastonite.
Figure 2
Figure 2
Fracture toughness of wollastonite content based on Ref. [34].
Figure 3
Figure 3
(a) Compressive and (b) flexural strengths of natural wollastonite and synthetic wollastonite based on Refs. [13,35].
Figure 3
Figure 3
(a) Compressive and (b) flexural strengths of natural wollastonite and synthetic wollastonite based on Refs. [13,35].
Figure 4
Figure 4
Critical crack length in cured 28 days based on Ref. [28].
Figure 5
Figure 5
Total shrinkage strain based on Ref. [37].
Figure 6
Figure 6
SEM images and EDX analysis of synthetic wollastonite.
Figure 7
Figure 7
The water sorptivity coefficient and synthetic wollastonite content based on Ref. [7].
Figure 8
Figure 8
Porosity and wollastonite replacement based on Ref. [32].
Figure 9
Figure 9
Mini-v-funnel flow time values of ECCs based on Ref. [33].
Figure 10
Figure 10
Typical flexural strength and mid-span beam deflection curve based on Ref. [33].
Figure 11
Figure 11
Compressive and flexural strengths of the mold-cast geopolymers at 7 days based on Ref. [49].
Figure 12
Figure 12
(a) Slump flow and (b) v-funnel of results of wollastonite based on Ref. [55].
Figure 13
Figure 13
Tensile strength of 27% substitution of different types of wollastonite based on Ref. [57].
Figure 14
Figure 14
Percentage reduction in chloride and wollastonite–microsilica replacement based on Ref. [27].
See this image and copyright information in PMC

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