Experimental-Computational Investigation of Elastic Modulus of Ultra-High-Rise Pumping Concrete
Source abstract
Abstract
Based on the ultra-high-rise pumping concrete engineering test with pumping height of 407 m and maximum pumping pressure of 19.3 MPa, the variation of elastic modulus of the pumping concrete was analyzed by experiments and computational method. Firstly, the back scattered electron (BSE) image binarization method was used to study the effect of pumping on the composition and pore distribution of the concrete. The effects of the pumping process on the elastic modulus of the paste and interface transition zone (ITZ) were quantitatively evaluated by x-ray diffraction (XRD), back scattered electron energy dispersive spectroscopy (BSE-EDS) and homogenization method, and verified by the test results of nanoindentation. The results showed that the porosity of the paste after the ultra-high-rise pumping decreased by 7.27%, the hydration degree of the cement increased by 6.51%, and the elastic modulus of the paste increased by 3.1 GPa. For the ITZ of the sand, the porosity decreased by 5.3 μm, the average porosity decreased by 15.78%, and the elastic modulus increased by 7.7 GPa. For the ITZ of the gravel, the thickness decreased by 6.91 μm, the average porosity decreased by 16.34%, and the elastic modulus increased by 10.2 GPa. Therefore, the effect of the ultra-high-rise pumping on the ITZ was significantly larger than that of the paste in the concrete. Afterward, the computational method was proposed as the combination of the homogenization method and the Lu and Torquato model. As the result, the elastic modulus of concrete after ultra-high-rise pumping can be precisely predicted on the micro-meso-macro scale due to the promising agreement between the experimental measurements and the numerical results.
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Research context
OpenAlex topics: Innovations in Concrete and Construction Materials · Concrete and Cement Materials Research · Innovative concrete reinforcement materials
SciVX discovery tags are terminology-based. OpenAlex topics are source-provided classifications.
Affiliations
The Key Laboratory of Urban Security and Disaster Engineering, Beijing Key Laboratory of Earthquake Engineering and Structural Retrofit, Beijing University of Technology, Beijing, 100124, China.
College of Materials Science and Engineering, Beijing University of Technology, Beijing, 100124, China.
The Key Laboratory of Urban Security and Disaster Engineering, Beijing University of Technology, Beijing, 100124, China.
College of Applied Sciences, Beijing University of Technology, 100124, China.
References (30)
Show source-provided references
1. 1) Botero, C. A., Jimenez-Piqué, E., Seuba, J., Kulkarni, T., Sarin, V. K. and Llanes, L., (2012). “Mechanical behavior of 3Al2O3•2SiO2 films under nanoindentation.” Acta Materialia, 60(16), 5889-5899.10.1016/j.actamat.2012.07.031 ↗
2. 2) Budiansky, B., (1965). “On the elastic moduli of some heterogeneous materials.” Journal of the Mechanics and Physics of Solids, 13(4), 223-227.10.1016/0022-5096(65)90011-6 ↗
3. 3) Choi, M., Roussel, N., Kim, Y. and Kim, J., (2013). “Lubrication layer properties during concrete pumping.” Cement and Concrete Research, 45, 69-78.10.1016/j.cemconres.2012.11.001 ↗
4. 4) Choi, M. S., Kim, Y. J., Jang, K. P. and Kwon, S. H., (2014). “Effect of the coarse aggregate size on pipe flow of pumped concrete.” Construction and Building Materials, 66, 723-730.10.1016/j.conbuildmat.2014.06.027 ↗
5. 5) Constantinides, G. and Ulm, F. -J., (2004). “The effect of two types of C-S-H on the elasticity of cement-based materials: results from nanoindentation and micromechanical modeling.” Cement and Concrete Research, 34(1), 67-80.10.1016/S0008-8846(03)00230-8 ↗
6. 6) Ede, A. N., (1957). “The resistance of concrete pumped through pipelines.” Magazine of Concrete Research, 9(27), 129-140.10.1680/macr.1957.9.27.129 ↗
7. 7) Feys, D., De Schutter, G. and Verhoeven, R., (2012). “Parameters influencing pressure during pumping of self-compacting concrete.” Materials and Structures, 46(4), 533-555.10.1617/s11527-012-9912-4 ↗
8. 8) Feys, D., Khayat, K. H., Perez-Schell, A. and Khatib, R., (2014). “Development of a tribometer to characterize lubrication layer properties of self-consolidating concrete.” Cement and Concrete Composites, 54, 40-52.10.1016/j.cemconcomp.2014.05.008 ↗
9. 9) Gao, Y., De Schutter, G. and Ye, G., (2013). “Micro- and meso-scale pore structure in mortar in relation to aggregate content.” Cement and Concrete Research, 52, 149-160.10.1016/j.cemconres.2013.05.011 ↗
10. 10) Garboczi, E. J. and Bentz, D. P., (1997). “Analytical formulas for interfacial transition zone properties.” Advanced Cement Based Materials, 6(97), 99-108.10.1016/S1065-7355(97)90016-X ↗
11. 11) Gregorová, E., Černý, M., Pabst, W., Esposito, L., Zanelli, C., Hamáček, J. and Kutzendörfer, J., (2015). “Temperature dependence of Young׳s modulus of silica refractories.” Ceramics International, 41(1), 1129-1138.10.1016/j.ceramint.2014.09.039 ↗
12. 12) Haecker, C. J., Garboczi, E. J., Bullard, J. W., Bohn, R. B., Sun, Z., Shah, S. P. and Voigt, T., (2005). “Modeling the linear elastic properties of Portland cement paste.” Cement and Concrete Research, 35(10), 1948-1960.10.1016/j.cemconres.2005.05.001 ↗
13. 13) Han, J., Di, J. and Yan, P., (2016). “Understanding the shrinkage compensating ability of type K expansive agent in concrete.” Construction and Building Materials, 116, 36-44.10.1016/j.conbuildmat.2016.04.092 ↗
14. 14) Han, J., Pan, G. and Wei, S., (2012). “Elastic modulus change investigation of cement paste before and after carbonation using nanoindentation technique.” Procedia Engineering, 27(27), 341-347.10.1016/j.proeng.2011.12.461 ↗
15. 15) Hill, R., (1965). “Theory of mechanical properties of fibre-strengthened materials – III: self-consistent model.” Journal of the Mechanics and Physics of Solids, 13(4), 189-198.10.1016/0022-5096(65)90008-6 ↗
16. 16) Hu, S., Yuan, P., Wang, F., Nie, S. and Liu, Y., (2017a). “Application of backscattered electron imaging and image analysis in the research of pore structure of cement-based material.” Journal of Building Materials, 20(02), 316-320 (in Chinese).
17. 17) Hu, X., Ma, X., Dong, X., Cao, C., Du, H. and Chen, Z., (2017b). “The prediction of elastic modulus of the mullite fiber network based on the actual structure architecture.” Ceramics International, 43(18), 16107-16113.10.1016/j.ceramint.2017.08.173 ↗
18. 18) Kaplan, D., Larrard, F. D. and Sedran, T., (2005). “Design of concrete pumping circuit.” ACI Materials Journal, 102(2), 110-117.
19. 19) Kocaba, V., Gallucci, E. and Scrivener, K. L., (2012). “Methods for determination of degree of reaction of slag in blended cement pastes.” Cement and Concrete Research, 42(3), 511-525.10.1016/j.cemconres.2011.11.010 ↗
20. 20) L’Hôpital, E., Lothenbach, B., Kulik, D. A. and Scrivener, K., (2016). “Influence of calcium to silica ratio on aluminium uptake in calcium silicate hydrate.” Cement and Concrete Research, 85, 111-121.10.1016/j.cemconres.2016.01.014 ↗
21. 21) Li, G., Zhao, Y. and Pang, S. -S., (1999). “Four-phase sphere modeling of effective bulk modulus of concrete.” Cement and Concrete Research, 29(6), 839-845.10.1016/S0008-8846(99)00040-X ↗
22. 22) Li, Y., Wang, P. and Wang, Z., (2017). “Evaluation of elastic modulus of cement paste corroded in brine solution with advanced homogenization method.” Construction and Building Materials, 157, 600-609.10.1016/j.conbuildmat.2017.09.133 ↗
23. 23) Ortega, J. M., Sánchez, I. and Climent, M. A., (2012). “Influence of different curing conditions on the pore structure and the early age properties of mortars with fly ash and blast-furnace slag.” Materiales De Construccion, 63(310), 219-234. (in Spanish)
24. 24) Qing-Lei, Y. U., Tang, C. A., Zhu, W. C. and Tang, S. B., (2008). “Digital image-based numerical simulation on failure process of concrete.” Engineering Mechanics, 25(9), 72-78.
25. 25) Tan, Y., Zhang, H., Yang, D., Jiang, S., Song, J. and Sheng, Y., (2011). “Numerical simulation of concrete pumping process and investigation of wear mechanism of the piping wall.” Tribology International, 46(1), 134-144.10.1016/j.triboint.2011.06.005 ↗
26. 26) Toropov, A. A. and Leszczynski, J., (2006). “A new approach to the characterization of nanomaterials: predicting Young’s modulus by correlation weighting of nanomaterials codes.” Chemical Physics Letters, 433(1-3), 125-129.10.1016/j.cplett.2006.11.010 ↗
27. 27) Ulm, F. -J., Vandamme, M., Bobko, C. and Ortega, J. A., (2007). “Statistical indentation techniques for hydrated nanocomposites: concrete, bone, and shale.” Journal of the American Ceramic Society, 90(9), 2677-269210.1111/j.1551-2916.2007.02012.x ↗
28. 28) Wang, X. H., Jacobsen, S., He, J. Y., Zhang, Z. L., Lee, S. F. and Lein, H. L., (2009). “Application of nanoindentation testing to study of the interfacial transition zone in steel fiber reinforced mortar.” Cement and Concrete Research, 39(8), 701-715.10.1016/j.cemconres.2009.05.002 ↗
29. 29) Zhao, Q., Sun, W., Zheng, K. and Jiang, G., (2005). “Comparison for elastic modulus of cement, ground granulated blast-furnace slag and fly ash particles.” Journal of the Chinese Ceramic Society, 33(7), 837-841.
30. 30) Zhao, Z., Qu, X., Li, F. and Wei, J., (2018). “Effects of steel slag and silica fume additions on compressive strength and thermal properties of lime-fly ash pastes.” Construction and Building Materials, 183, 439-450.10.1016/j.conbuildmat.2018.05.220 ↗