| Peer-Reviewed

Laboratory Investigation on Mechanical Properties of Cementitious Composites with a Low Brittleness

Received: 28 November 2019     Accepted: 11 December 2019     Published: 24 December 2019
Views:       Downloads:
Abstract

In this study, laboratory tests were conducted to investigate the mechanical behaviors of cement mortars incorporated with different admixtures, such as polypropylene fiber (PP), slag, silica fume and fly ash. Orthogonal tests were designed to evaluate the effects of the admixtures on the brittleness. The flexural strengths and the compressive-flexural ratios were selected to evaluate the brittleness. The optimal proportion can be obtained when PP content was 1.6 kg/m3, and the content of fly ash, slag and silica fume was 10%, 20% and 3% of the cement content respectively. Using the optimal proportion, the 3d flexural strength of cement mortar was 5.65 MPa, which was 19% larger than the specimens without the addition of admixtures; the compressive-flexural ratio was 4.1, which was reduced by 19% in contrast to the control group. The flexural strength at 28d was 9.04 MPa, which was 13% higher than the control group; and the compressive-flexural ratio was 4.21, decreasing 24% compared to the control group. SEM technology was utilized to characterize the evolution of the microstructure induced by the addition of mineral admixtures and PP fiber. Results showed that mineral admixtures made the mortars denser, and the PP fiber formed a cross-linking structure, improving the brittle-resistance. The test results provided some guidance for the mixture design of pavement concrete with a high flexural strength and a low brittleness.

Published in International Journal of Transportation Engineering and Technology (Volume 5, Issue 4)
DOI 10.11648/j.ijtet.20190504.17
Page(s) 103-110
Creative Commons

This is an Open Access article, distributed under the terms of the Creative Commons Attribution 4.0 International License (http://creativecommons.org/licenses/by/4.0/), which permits unrestricted use, distribution and reproduction in any medium or format, provided the original work is properly cited.

Copyright

Copyright © The Author(s), 2019. Published by Science Publishing Group

Keywords

Cement Mortar, Flexural Strength, Compressive-flexural Ratio, Polypropylene Fiber, Orthogonal Test

References
[1] P. K. Mehta, P. J. M. Monteiro, Concrete: microstructure, properties, and materials, McGraw-Hill Publishing, New York, US, 2005.
[2] W. Song, J. Yin, Hybrid effect evaluation of steel fiber and carbon fiber on the performance of the fiber reinforced concrete, Materials 9 (8) (2016) 704.
[3] W. Sun, H. Yan, B. Zhan, Analysis of mechanism on water-reducing effect of fine ground slag, high-calcium fly ash, and low-calcium fly ash, Cement and Concrete Research 33 (8) (2003) 1119-1125.
[4] R. K. Graham, B. Huang, X. Shu, E. G. Burdette, Laboratory evaluation of tensile strength and energy absorbing properties of cement mortar reinforced with micro- and meso-sized carbon fibers, Construction and Building Materials 44 (2013) 751-756.
[5] M. Leone, G. Centonze, D. Colonna, F. Micelli, M. J. C. Aiello, B. Materials, Fiber-reinforced concrete with low content of recycled steel fiber: Shear behaviour, 161 (2018) 141-155.
[6] V. Afroughsabet, L. Biolzi, T. J. J. o. m. s. Ozbakkaloglu, High-performance fiber-reinforced concrete: a review, 51 (14) (2016) 6517-6551.
[7] D. A. Hensher, Fiber-reinforced-plastic (FRP) reinforcement for concrete structures: properties and applications, Elsevier2016.
[8] W. Song, J. Yi, H. Wu, X. He, Q. Song, J. Yin, Effect of carbon fiber on mechanical properties and dimensional stability of concrete incorporated with granulated-blast furnace slag, Journal of Cleaner Production 238 (2019) 117819.
[9] J. Gao, A. Sha, Z. Wang, L. Hu, D. Yun, Z. Liu, Y. Huang, Characterization of carbon fiber distribution in cement-based composites by Computed Tomography, Construction and Building Materials 177 (2018) 134-147.
[10] G. M. Kim, H. Yoon, H. K. Lee, Autogenous shrinkage and electrical characteristics of cement pastes and mortars with carbon nanotube and carbon fiber, Construction and Building Materials 177 (2018) 428-435.
[11] A. Sassani, H. Ceylan, S. Kim, K. Gopalakrishnan, A. Arabzadeh, P. Taylor, Influence of mix design variables on engineering properties of carbon fiber-modified electrically conductive concrete, Construction and Building Materials 152 (2017) 168-181.
[12] Statista, https://www.statista.com/statistics/219343/cement-production-worldwide/, 2016.
[13] C. D. Atiş, High-volume fly ash concrete with high strength and low drying shrinkage, Journal of materials in civil engineering 15 (2) (2003) 153-156.
[14] C. D. Atiş, A. Kilic, U. K. Sevim, Strength and shrinkage properties of mortar containing a nonstandard high-calcium fly ash, Cement and concrete Research 34 (1) (2004) 99-102.
[15] S. A. Bernal, R. M. De Gutierrez, A. L. Pedraza, J. L. Provis, E. D. Rodriguez, S. Delvasto, Effect of binder content on the performance of alkali-activated slag concretes, Cement and Concret Research 41 (1) (2011) 1-8.
[16] B. Bharatkumar, B. Raghuprasad, D. Ramachandramurthy, R. Narayanan, S. Gopalakrishnan, Effect of fly ash and slag on the fracture characteristics of high performance concrete, Materials and Structures 38 (1) (2005) 63-72.
[17] P. S. Deb, P. Nath, P. K. Sarker, The effects of ground granulated blast-furnace slag blending with fly ash and activator content on the workability and strength properties of geopolymer concrete cured at ambient temperature, Materials & Design 62 (2014) 32-39.
[18] S. C. Kou, C. S. Poon, D. Chan, Influence of fly ash as a cement addition on the hardened properties of recycled aggregate concrete, Materials and Structures 41 (7) (2008) 1191-1201.
[19] K. Kuder, D. Lehman, J. Berman, G. Hannesson, R. Shogren, Mechanical properties of self consolidating concrete blended with high volumes of fly ash and slag, Construction and Building Materials 34 (2012) 285-295.
Cite This Article
  • APA Style

    Weiqun Cai, Jian Yin, Songyun Wu, Chunning Deng, Fen Yang, et al. (2019). Laboratory Investigation on Mechanical Properties of Cementitious Composites with a Low Brittleness. International Journal of Transportation Engineering and Technology, 5(4), 103-110. https://doi.org/10.11648/j.ijtet.20190504.17

    Copy | Download

    ACS Style

    Weiqun Cai; Jian Yin; Songyun Wu; Chunning Deng; Fen Yang, et al. Laboratory Investigation on Mechanical Properties of Cementitious Composites with a Low Brittleness. Int. J. Transp. Eng. Technol. 2019, 5(4), 103-110. doi: 10.11648/j.ijtet.20190504.17

    Copy | Download

    AMA Style

    Weiqun Cai, Jian Yin, Songyun Wu, Chunning Deng, Fen Yang, et al. Laboratory Investigation on Mechanical Properties of Cementitious Composites with a Low Brittleness. Int J Transp Eng Technol. 2019;5(4):103-110. doi: 10.11648/j.ijtet.20190504.17

    Copy | Download

  • @article{10.11648/j.ijtet.20190504.17,
      author = {Weiqun Cai and Jian Yin and Songyun Wu and Chunning Deng and Fen Yang and Linchen Li and Jiongjun Yuan},
      title = {Laboratory Investigation on Mechanical Properties of Cementitious Composites with a Low Brittleness},
      journal = {International Journal of Transportation Engineering and Technology},
      volume = {5},
      number = {4},
      pages = {103-110},
      doi = {10.11648/j.ijtet.20190504.17},
      url = {https://doi.org/10.11648/j.ijtet.20190504.17},
      eprint = {https://article.sciencepublishinggroup.com/pdf/10.11648.j.ijtet.20190504.17},
      abstract = {In this study, laboratory tests were conducted to investigate the mechanical behaviors of cement mortars incorporated with different admixtures, such as polypropylene fiber (PP), slag, silica fume and fly ash. Orthogonal tests were designed to evaluate the effects of the admixtures on the brittleness. The flexural strengths and the compressive-flexural ratios were selected to evaluate the brittleness. The optimal proportion can be obtained when PP content was 1.6 kg/m3, and the content of fly ash, slag and silica fume was 10%, 20% and 3% of the cement content respectively. Using the optimal proportion, the 3d flexural strength of cement mortar was 5.65 MPa, which was 19% larger than the specimens without the addition of admixtures; the compressive-flexural ratio was 4.1, which was reduced by 19% in contrast to the control group. The flexural strength at 28d was 9.04 MPa, which was 13% higher than the control group; and the compressive-flexural ratio was 4.21, decreasing 24% compared to the control group. SEM technology was utilized to characterize the evolution of the microstructure induced by the addition of mineral admixtures and PP fiber. Results showed that mineral admixtures made the mortars denser, and the PP fiber formed a cross-linking structure, improving the brittle-resistance. The test results provided some guidance for the mixture design of pavement concrete with a high flexural strength and a low brittleness.},
     year = {2019}
    }
    

    Copy | Download

  • TY  - JOUR
    T1  - Laboratory Investigation on Mechanical Properties of Cementitious Composites with a Low Brittleness
    AU  - Weiqun Cai
    AU  - Jian Yin
    AU  - Songyun Wu
    AU  - Chunning Deng
    AU  - Fen Yang
    AU  - Linchen Li
    AU  - Jiongjun Yuan
    Y1  - 2019/12/24
    PY  - 2019
    N1  - https://doi.org/10.11648/j.ijtet.20190504.17
    DO  - 10.11648/j.ijtet.20190504.17
    T2  - International Journal of Transportation Engineering and Technology
    JF  - International Journal of Transportation Engineering and Technology
    JO  - International Journal of Transportation Engineering and Technology
    SP  - 103
    EP  - 110
    PB  - Science Publishing Group
    SN  - 2575-1751
    UR  - https://doi.org/10.11648/j.ijtet.20190504.17
    AB  - In this study, laboratory tests were conducted to investigate the mechanical behaviors of cement mortars incorporated with different admixtures, such as polypropylene fiber (PP), slag, silica fume and fly ash. Orthogonal tests were designed to evaluate the effects of the admixtures on the brittleness. The flexural strengths and the compressive-flexural ratios were selected to evaluate the brittleness. The optimal proportion can be obtained when PP content was 1.6 kg/m3, and the content of fly ash, slag and silica fume was 10%, 20% and 3% of the cement content respectively. Using the optimal proportion, the 3d flexural strength of cement mortar was 5.65 MPa, which was 19% larger than the specimens without the addition of admixtures; the compressive-flexural ratio was 4.1, which was reduced by 19% in contrast to the control group. The flexural strength at 28d was 9.04 MPa, which was 13% higher than the control group; and the compressive-flexural ratio was 4.21, decreasing 24% compared to the control group. SEM technology was utilized to characterize the evolution of the microstructure induced by the addition of mineral admixtures and PP fiber. Results showed that mineral admixtures made the mortars denser, and the PP fiber formed a cross-linking structure, improving the brittle-resistance. The test results provided some guidance for the mixture design of pavement concrete with a high flexural strength and a low brittleness.
    VL  - 5
    IS  - 4
    ER  - 

    Copy | Download

Author Information
  • College of Civil Engineering, Central South University of Forestry and Technology, Changsha, China

  • College of Civil Engineering, Central South University of Forestry and Technology, Changsha, China

  • College of Civil Engineering, Central South University of Forestry and Technology, Changsha, China

  • College of Civil Engineering, Central South University of Forestry and Technology, Changsha, China

  • College of Civil Engineering, Central South University of Forestry and Technology, Changsha, China

  • College of Civil Engineering, Central South University of Forestry and Technology, Changsha, China

  • College of Civil Engineering, Central South University of Forestry and Technology, Changsha, China

  • Sections