Physical and Mechanical Properties of Ultra-High Strength and High Ductility Cementitious Composites

Conference paper
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Part of the RILEM Bookseries book series (RILEM, volume 15)

Abstract

A new class of fiber reinforced cementitious composites including 2.0% volume fraction of the domestically produced Polyethylene (PE) Fibers with high strength and high modulus is invited in present work, that is the Ultra-High Strength and High Ductility Cementitious Composites (UHSHDCC), which possesses exceptional combined properties of ultra-high compressive strength (exceeding 163 MPa) and ultra-high tensile ductility (more than 6%) with strain hardening and multiple cracking phenomena under quasi-static loads. Some Eco-nano admixture is mixed in it as a part of cementitious binder. The uniaxial tensile test results show that the ultimate uniaxial strength is 7.0 MPa and the average crack width at ultimate strain is 84 μm. The physical properties (like the microscopic morphology, fiber dispersion degree) of UHSHDCC were quantitatively evaluated using different modern analysis equipment like ESEM (environmental scanning electron microscopy) and fluorescence microscope, respectively. The tested mechanical and physical properties are meaningful for making clear the innate characteristics and micro-mechanisms of UHSHDCC.

Keywords

High strength High ductility Strain hardening Tensile ductility Fiber dispersion degree Microscopic morphology 
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Notes

Acknowledgements

This work is supported by the National Natural Science Foundations of China (Grant Nos. 51378113 and 51438003), and partly by the National Basic Research Program of China (973 Program, Grant No. 2015CB655102), the Plan of Six Peak Talents in Jiangsu Province (Grant No. JZ-004), the National Key Research and Development Program of China (Grant No. 2016YFC0401610) and the National Natural Science Foundations of Jiangsu Province (Grant No. BK20151072).

References

  1. Chen, T., Zhan, B.G.: The research of polyvinyl alcohol-engineered cementitious composite. Concrete 11, 3–6 (2003). (in chinese)Google Scholar
  2. Guo, L.P., Lei, D.Y.: Effect of fiber type and fiber hybrids on strain-hardening and multiple cracking properties of the ultra-high performance cementitious composites under uniaxial loads. Key Eng. Mater. 711, 187–194 (2016)CrossRefGoogle Scholar
  3. JSCE (Japan Society of Civil Engineers): Recommendations for Design and Construction of High Performance Fiber Reinforced Cement Composites with Multiple Fine Cracks. Standard, Tokyo (2008)Google Scholar
  4. Kanda, T., Li, V.C.: Interface property and apparent strength of highstrength hydrophilic fiber in cement matrix. J. Mater. Civil. Eng. 10(1), 5–13 (1998)CrossRefGoogle Scholar
  5. Kim, Y.Y., Fischer, G., Lim, Y.M., Li, V.C.: Mechanical performance of sprayed engineered cementitious composite (ECC) using wet-mix shotcreting process for repair. ACI Mater. J. 101(1), 42–49 (2004)Google Scholar
  6. Kobayashi, K.: Fiber Reinforced Concrete. Tokyo, Ohm-Sha (1981)Google Scholar
  7. Lei, D.Y., Guo, L.P., Sun, W., Liu, J.P., Shu, X., Guo, X.L.: A new dispersing method on silica fume and its influence on the performance of cement-based materials. Constr. Build. Mater. 15, 716–726 (2016)CrossRefGoogle Scholar
  8. Li, V.C., Leung, C.K.: Steady-state and multiple cracking of short random fiber composites. J. Eng. Mech. 118(11), 2246–2264 (1992)CrossRefGoogle Scholar
  9. Li, V.C., Wang, S.X., Wu, C.: Tensile strain-hardening behavior of polyvinyl alcohol engineered cementitious composite (PVA-ECC). Mater. J. 98(6), 483–492 (2001)Google Scholar
  10. Li, V.C.: On engineered cementitious composites (ECC). J. Adv. Concr. Technol. 1(3), 215–230 (2003)CrossRefGoogle Scholar
  11. Li, V.C.: Integrated structures and materials design. Mater. Struct. 40(4), 387–396 (2007)CrossRefGoogle Scholar
  12. Torigoe, S.I., Horikoshi, T., Ogawa, A., Saito, T., Hamada, T.: Study on evaluation method for PVA fiber distribution in engineered cementitious composite. J. Adv. Concr. Technol. 1(3), 265–268 (2003)CrossRefGoogle Scholar
  13. Zhang, J., Li, V.C.: Monotonic and fatigue performance in bending of fiber-reinforced engineered cementitious composite in overlay system. Cem. Concr. Res. 32(3), 415–423 (2002)CrossRefGoogle Scholar
  14. Zhou, J., Qian, S., Ye, G., Copuroglu, O., Breugel, K.V., Li, V.C.: Improved fiber distribution and mechanical properties of engineered cementitious composites by adjusting the mixing sequence. Cem. Concr. Compos. 34(3), 342–348 (2012)CrossRefGoogle Scholar

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© RILEM 2018

Authors and Affiliations

  1. 1.School of Materials Science and EngineeringSoutheast UniversityNanjingChina
  2. 2.Jiangsu Key Laboratory of Construction MaterialsNanjingChina
  3. 3.Advanced Civil Engineering Materials Collaborative Innovation CenterNanjingChina

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