Materiales de Construcción, Vol 65, No 318 (2015)

Constituent phases and mechanical properties of iron oxide-additioned phosphoaluminate cement


https://doi.org/10.3989/mc.2015.02214

Shuai Yang
Shandong Provincial Laboratory for the Preparation and Measurement of Building Materials, University of Jinan, China

Shoude Wang
Shandong Provincial Laboratory for the Preparation and Measurement of Building Materials, University of Jinan, China

Chenchen Gong
Shandong Provincial Laboratory for the Preparation and Measurement of Building Materials, University of Jinan, China

Lingchao Lu
Shandong Provincial Laboratory for the Preparation and Measurement of Building Materials, University of Jinan, China

Xin Cheng
Shandong Provincial Laboratory for the Preparation and Measurement of Building Materials, University of Jinan, China

Abstract


Iron oxide was added to phosphoaluminate clinker and its effects on cement constituents were determined using XRD, DSC, SEM-EDS and conduction calorimetry analysis. The variations in compressive strength were also studied. The results showed that in moderate amounts, iron oxide acts as a mineraliser during clinker sintering, furthering the conversion of CA1-Y(PY) to LHss at a lower temperature than normally required for that reaction. The main constituents of iron oxide-rich phosphoaluminate clinker included LHss, CA1-Y(PY), CP1-Z(AZ) and ferrite. The EDS findings showed that the composition of the ferrite phase was nonuniform. The conclusion drawn was that by modifying the dose of Fe2O3) , the composition of phosphoaluminate cement can be controlled to produce clinker and cement compliant with different mechanical strength requirements. The conduction calorimetry findings were consistent with those results.

Keywords


Phosphoaluminate cement; Ferrite phase; Phase constituents; Mechanical properties

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References


1. Bradbury, C.; Callaway, P.M.; Double, D.D. (1976) The conversion of high alumina cement /concrete. Mater. Sci. Eng. 1 [23], 43–53. http://dx.doi.org/10.1016/0025-5416(76)90085-9

2. Midgley, H.G.; Ryder, J.F. (1977) The relationship between mineral composition and strength development of high alumina cement. Cem. Concr. Res. 7, 669–672. http://dx.doi.org/10.1016/0008-8846(77)90049-7

3. Mangabhai, R.J.; Glasser, F.P. (2001). Calcium Aluminate Cements 2001: Proceedings of the International Conference on Calcium Aluminate Cements (CAC) Held at Heriot-Watt University Edinburgh, Scotland, UK, 16–19 July 2001, IOM Communications.

4. Kirca, O.; Yaman, I.O.; Tokyay, M. (2013) Compressive strength development of calcium aluminate cement-GGBFS blends, Cem. Concr. Comp. 35 [1], 163–170. http://dx.doi.org/10.1016/j.cemconcomp.2012.08.016

5. Neven, U.; Anamarija, R. (2013) Styrene-butadiene latex modified calcium aluminate cement mortar. Cem. Concr. Comp. 41, 16–23. http://dx.doi.org/10.1016/j.cemconcomp.2013.04.012

6. Luz, A.P.; Pandolfelli, V.C. (2012) CaCO3 addition effect on the hydration and mechanical strength evolution of calcium aluminate cement for endodontic applications. Ceram. Int. 38, 1417–1425. http://dx.doi.org/10.1016/j.ceramint.2011.09.021

7. Jiashan, H. (2004) Phosphorus-aluminate binding material system. C.N. patent 1498870A, issued May 26, 2004.

8. Shiqun, L.; Guohui, Z.; Ning, Z.; Biao, L.; Wui, C.; Jiashan, H. (1998) Study on hydraulic activity of aluminum- rich area in CaO-Al2O3-P2O5 system. J. Chin. Ceram. Soc. 26 [2], 142–148.

9. Shiqun, L.; Jiashan, H.; Biao, L.; Guohui, Z.; Wei, C.; Qi, W.; Ning, Z. (1999) Fundamental study on aluminophosphate cement. Cem. Concr. Res. 29, 1549–1554. http://dx.doi.org/10.1016/S0008-8846(99)00111-8

10. Jia, L.; Shiqun, L.; Jiashan, H.; Biao, L.; Qi, W. (2001) Study on the aluminophosphate glass-rich cement. Cem. Concr. Res. 31, 949–952. http://dx.doi.org/10.1016/S0008-8846(01)00503-8

11. Shuguang, H. (2010) Special Cements. Wuhan University of Technology Press, Wuhan.

12. Shiqun, L.; Zhaohua, Y.; Wei, W.; Fengyan, Z.; Biao, L.; Jiashan, H. (2007) Fundamental study on the chemical stability of hardened pastes of phosphoaluminate cement. Mater. Res. Innov. 11 [2], 78–82. http://dx.doi.org/10.1179/143307507X196590

13. Guonian, W. (2002) S6+, Fe3+, Mg2+, Ti4+ on the phase formation of CaO-SiO2-Al2O3-P2O5 system. Master's degree thesis, Shandong Institute of Building Materials, Jinan, China.

14. Tenorio, J.A.S.; Pereira, S.S.R.; Ferreira, A.V.; Romano Espinosa, D.C.; da Silva Araújo, F.G. (2004) CCT diagrams of tricalcium silicate Part I. Influence of the Fe2O3 content. Materials Research Bulletin. 3 [40], 433–438.

15. Dietmar, S.; Sophie, N.D.; Gabriele, R.S. (2008) Influence of combined doping of tricalcium silicate with MgO, Al2O3and Fe2O3: synthesis, grindability, X-ray diffraction and 29Si NMR. Mater. Struct. 41, 1729–1740. http://dx.doi.org/10.1617/s11527-008-9360-3

16. Xiaocun, L.; Yanjun, L. (2005) Effect of MgO on the composition and properties of alite-suphoaluminated cement. Cem. Concr. Res. 35, 1685–1687. http://dx.doi.org/10.1016/j.cemconres.2004.08.008

17. Lingchao, L.; Jun, C.; Yeqing, S.; Xin, C.; Hanxing, L.; Runzhang, Y. (2005) Synthesis and mechanical performance of alite-calcium barium sulphoalumiante cement. J. Chin. Ceram. Soc. 33 [7], 902–906.

18. Yong, G.; Junan, D.; Muzhen, S.; Yanmou. W. (1988) A study on formation mechanism of ferrite phase in ferroaluminate cement. J. Chin. Ceram. Soc. 16 [6], 481–487.

19. Gollop, R.S.; Taylor, H.F.W. (1994) Microstructural and microanalytical studies of sulfate attack. II. Sulfate-resisting Portland cement: Ferrite composition and hydration chemistry. Cem. Concr. Res. 24 [7], 1347–1358. http://dx.doi.org/10.1016/0008-8846(94)90120-1

20. Miler, M.; Mirticˇ, B. (2013) Accuracy and precision of EDS analysis for identification of metal-bearing minerals in polished and rough particle samples. Geologija. 56 [1], 5–18. http://dx.doi.org/10.5474/geologija.2013.001

21. Michael, C.M.; Peter, A.; Peter, T. (2013) Quantitative evaluation of mineral grains using automated SEM–EDS analysis and its application potential in optically stimulated luminescence dating. Radiat. Meas. 58, 1–11. http://dx.doi.org/10.1016/j.radmeas.2013.07.004

22. Yanwei, Z.; Nanru, Y. (1991) A comparative study of the ferritephase in high-iron cement with the pure C2AxF1-x by Mössbauer spectroscopy. Cem. Concr. Res. 21, 31–37. http://dx.doi.org/10.1016/0008-8846(91)90028-G

23. Harchand, K.S.; Chandra. K. (1983) A study of CaO (Fe2O3)1-x(Al2O3)x system. Cem. Concr. Res. 13, 465–469. http://dx.doi.org/10.1016/0008-8846(83)90003-0

24. Harch, K.S.; Vishwamitter Chandra, K. (1984) A study of iron phase and its hydration behaviour in high alumina cement. Cem. Concr. Res. 14, 19–24. http://dx.doi.org/10.1016/0008-8846(84)90075-9

25. Fawei, Z. (2007) The hydration performance and mechanism of phosphoaluminate cement, magnesium phosphate cement and compound phosphoaluminate-magnesium phosphate cement. Master's degree thesis. Jinan University, Jinan, China.




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