Effect of wollastonite microfiber on the performance of engineered cementitious composites

Yunguo Zhang; Huaqiang Zhu; Mengzhen Shi; Suning Li; Chao Ma

doi:10.54097/hset.v18i.2653

Authors

Yunguo Zhang
Huaqiang Zhu
Mengzhen Shi
Suning Li
Chao Ma

DOI:

https://doi.org/10.54097/hset.v18i.2653

Keywords:

Engineering cementitious composites, Wollastonite, Workability, Mechanical properties, Shrinkage

Abstract

The effects of 75μm wollastonite microfibers on the workability, mechanical properties and shrinkage properties of cementitious composites were studied by mechanical and shrinkage tests. The results show that the addition of microfiber reduces the fluidity of fresh mixture, but appropriate content can still meet the needs of self-compaction. WF has no gain effect on the compressive strength of the mixture, but when the dosage is 20%~30%, the flexural strength and tensile strength can be significantly increased by 87% and 28%. The shrinkage test indicates that WF has a good inhibiting effect on shrinkage deformation. It can be used as a good mineral admixture in ECC.

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References

S.L. Xu, H.D. Li. A review on the development of research and application of ultra-high toughness cementitious composites, China Civil Engineering Journal. 41 (2008): 45-60.

S.L. Xu, H.D. Li. Uniaxial tensile experiments of ultra-high toughness cementitious composite, China Civil Engineering Journal. 42 (2009): 32-41.

M.A. Wahab, I.A. Latif, M. Kohail, A. Almasry. The use of Wollastonite to enhance the mechanical properties of mortar mixes, Construction and Building Materials. 152 (2017): 304-309.

Hatice, Muhammet. The effects of synthetic wollastonite developed with calcite and quartz on high performance mortars, Structural Concrete. 22 (2020): 257-272.

B. Xu, B. Lothenbach, F. Winnefeld. Influence of wollastonite on hydration and properties of magnesium potassium phosphate cements, Cement and Concrete Research, 106012 (2020): 1-21.

P. Kalla, A. Rana, Y.B. Chad, A. Misra, L. Csetenyi. Durability studies on concrete containing wollastonite, Journal of Cleaner Production. 10 (2014): 1-9.

P. Kalla, A. Misra, R.C. Gupta, L. Csetenyi, V. Gahlot. Mechanical and durability studies on concrete containing wollastonite-fly ash combination, Construction and Building Materials. 40 (2013): 1142-1150.

J.L. Zhu, J.X. Wei, Q.J. Yu, M.B. Xu, Y.W. Luo. Hybrid Effect of Wollastonite Fiber and Carbon Fiber on the Mechanical Properties of Oil Well Cement Pastes, Advances in Materials Science and Engineering. 2020 (2020).

Z.M. He, A.Q. Shen, Z.H. Lyu, Y. Li, H.S. Wu, W.Z. Wang. Effect of wollastonite microfibers as cement replacement on the properties of cementitious composites: A review, Construction and Building Materials. 261 (2020): 1-13.

A.M. Soliman, M.L. Nehdi. Effect of Natural Wollastonite Microfibers on Early-Age Behavior of UHPC, Journal Of Materials In Civil Engineering. 24 (2012): 816-824.

A. Jindal, G.D. Ransinchung R.N. , P. Kumar. Behavioral study of self-compacting concrete with wollastonite microfiber as part replacement of sand for pavement quality concrete (PQC). International Journal of Transportation Science and Technology. 9 (2020): 170-181.

V. Dey, R. Kachala, A. Bonakdar, B. Mobasher. Mechanical properties of micro and sub-micron wollastonite fibers in cementitious composites. Construction and Building Materials, 82 (2015): 351-359.

S. K. Sharma. Properties of SCC containing pozzolans, Wollastonite micro fiber, and recycled aggregates, Heliyon. 13 (2019): 1-12.

D.Y. Yoo, N. Banthia, S.T. Kang, Y.S. Yoon. Effect of fiber orientation on the rate-dependent flexural behavior of ultra-high-performance fiber-reinforced concrete, Composite Structures. 157 (2016): 62-70.