Title:
Preparation and Processability of Light-Transmitting Magnesian Cementitious Materials
Author(s):
Fazhou Wang, Chang Shu, Dingheng Zheng, Lu Yang, and Peng Liu
Publication:
Materials Journal
Volume:
113
Issue:
6
Appears on pages(s):
719-724
Keywords:
cracking; elastic modulus; fluidity; interfacial binding force; light-transmitting concrete
DOI:
10.14359/51689237
Date:
11/1/2016
Abstract:
Light-transmitting magnesian cementitious materials (LTMCMs) were prepared via casting molding in this work. The slurry fluidity, processability, and interface bonding between cement and optical fiber were investigated in detail. The results showed that the slurry fluidity of magnesium oxychloride cement (MOC) can be controlled in the range of 0.03 to 0.1 L/s (tested by V-funnel method) by adding a certain amount of fly ash (FA) and silica fume (SF). With the addition of polymethyl methacrylate emulsion (L23) and polyvinyl alcohol (PVA) emulsion, the elastic modulus of LTMCM was reduced from 565.63 to 304.57 ksi (3900 to 2100 MPa), which significantly enhanced the processability of the as-prepared samples. Additionally, the peak pullout load of polymethyl methacrylate (PMMA) optical fiber in MOC was increased from 0.024 to 0.039 kip (106.4 to 175.3 N) after treatment by acetone and a coupling agent. The light transmittance of LTMCM increased from 8.9 to 48.2% along with varied percentages of PMMA optical fiber in the composites.
Related References:
1. Losonczi, A., “Building Block Comprising Light Transmitting Fibers and a Method Producing the Same,” Patent USP:B2, 8091315, 2012-01-10.
2. Li, Y.; Xu, Z. Y.; Gu, Z. W.; and Bao, Z. Z., “Preparation of Light Transmitting Cement-Based Material with Optical Fiber Embedded by the Means of Parallel Arrange,” Advanced Materials Research, V. 391-392, 2011, pp. 677-682. doi: 10.4028/www.scientific.net/AMR.391-392.677
3. Yang, Q., “The Light Transmitting Concrete,” Recent Developments in Science & Technology Abroad, V. 4, 2004, 17 pp. (in Chinese)
4. Shen, C. L.; Tao, M. L.; Lyu, L. P.; and Yang, X. H., “A Production Equipment and Method of the Light Transmitting Concrete Billet,” Patent CN: 102189590A, 2011-09-21.
5. Gizmag, “LiTraCon: Innovate the Traditional Concrete,” Ready-Mixed Concrete, V. 7, 2009, 20 pp.
6. Hartman, C., “Seeing the Future of Construction through Translucent Concrete,” The Associated Press, July 8, 2004, pp. 1-3.
7. Cao, Y. K., and Cai, G. Z., “Term, Translation and Production Process of Light Concrete,” Building Decoration Materials World, V. 3, 2010, pp. 16-18. (in Chinese)
8. Wang, X. G.; Chen, F. B.; and Zhang, W. Q., “Light Transmitting Cement-Based Materials and a Method Producing the Same,” Patent CN:102503261A, 2012-06-20.
9. Wang, X. G.; Chen, F. B.; Zhang, W. Q.; and Ye, X. N., “Mechanical and Optical Properties of Luminescent and Transparent Cementitious Materials,” Journal of China University of Mining & Technology, V. 42, 2013, pp. 195-199. (In Chinese)
10. Li, Y.; Xu, Z. Y.; and Guo, H., “A Preparation Method of the Light Transmitting Concrete with Designed Transparent Form,” Patent CN:102848451A, 2013-01-02.
11. Li, Y.; Xu, Z. Y.; Li, Z. G.; Jin, C. Y.; Gu, Z. W.; and Bao, Z. Z., “The Production Method of Light Transmitting Cement-Based Materials by Parallel Arrangement of Fibers,” Patent CN:102166779A, 2011-08-31.
12. Yang, W.; Wang, J.; Zhao, R. X.; Wu, Y. Y.; Wu, X.; Wang, Z. L.; and Zhang, J. L., “A Method and Apparatus for Preparing Light Transmitting Concrete Block,” Patent CN:102601845A, 2012-07-25.
13. Yang, W.; Wang, J.; Zhao, R. X.; Wu, Y. Y.; Wu, X.; Zhang, J. L.; and Wang, Z. L., “A Construction Method of Cast-in-Place Light Transmitting Concrete,” Patent CN:102605954A, 2012-07-25.
14. Wu, Y. H., “Study on Smart Transparent Concrete Product and Its Performance,” master’s thesis, Harbin Institute of Technology, Harbin, China, 2010, pp. 3-9. (in Chinese)
15. Li, Y.; Xu, Z. Y.; Gu, Z. W.; and Bao, Z. Z., “Research on the Light Transmitting Cement Mortar,” Trends in Building Materials Research, Parts 1 and 2, V. 450-451, 2012, pp. 397-401.
16. Tan, Y. N.; Liu, Y.; and Grover, L., “Effect of Phosphoric Acid on the Properties of Magnesium Oxychloride Cement as a Biomaterial,” Cement and Concrete Research, V. 56, 2014, pp. 69-74. doi: 10.1016/j.cemconres.2013.11.001
17. Wang, F. Z.; Yang, L.; Sun, G.; Guan, L.; and Hu, S., “The Hierarchical Porous Structure of Substrate Enhanced Photocatalytic Activity of TiO2/Cementitious Materials,” Construction and Building Materials, V. 64, 2014, pp. 488-495. doi: 10.1016/j.conbuildmat.2014.04.073
18. Yang, J. M.; Zhou, Q. Z.; Qian, C. X.; Jiao, B. X.; and Yan, X. B., “Testing Method of Fluidity and Flow Behaviors of Magnesia-Phosphate Fresh Pastes,” Bulletin of The Chinese Ceramic Society, V. 28, 2009, pp. 624-629. (In Chinese)
19. Deng, D. H., “A Study on the Theories and Techniques for Improving the Properties of MgO-Based Basic Salt Cements and their Articles,” PhD thesis, Central South University, Hunan, China, 2005, pp. 15-21. (in Chinese)
20. Li, Z. J., and Chau, C. K., “Influence of Molar Ratios on Properties of Magnesium Oxychloride Cement,” Cement and Concrete Research, V. 37, No. 6, 2007, pp. 866-870. doi: 10.1016/j.cemconres.2007.03.015