A hydration study of various calcium sulfoaluminate cements
Source abstract
Abstract
Abstract The present work studies the hydration process and microstructural features of five calcium sulfoaluminate (CSA) cements and a ternary mixture including also ordinary Portland cement (OPC). The pastes were studied with simultaneous differential thermal-thermogravimetric (DTA-TG) analysis, mercury intrusion porosimetry (MIP), scanning electron microscopy (SEM), and expansion/shrinkage tests. The DTA-TG analysis confirmed the role of the hydration reactions involving the main CSA clinker constituent, tetracalcium trialuminate sulfate, which produced (i) ettringite when combined with lime and calcium sulfate, (ii) ettringite and aluminum hydroxide in the presence of calcium sulfate alone, and (iii) monosulfate and aluminum hydroxide in the absence of both lime and calcium sulfate. The MIP and SEM were able to discriminate between expansive (ternary mixture and CSA cement containing 50% gypsum) and non-expansive cements. Expansive cement pastes had (i) a nearly unimodal pore size distribution shifted toward higher radii and (ii) ettringite crystals smaller in size during the first day of curing. In a SEM image of a hardened paste of the CSA cement containing 50% gypsum, a stellate ettringite cluster was observed.
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Research context
OpenAlex topics: Concrete and Cement Materials Research · Building materials and conservation · Ferroelectric and Piezoelectric Materials
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References (72)
Show source-provided references
1. Zeta potential and surface area measurements on ettringite10.1016/0008-8846(82)90012-6 ↗
2. Investigations on energy-saving cements
3. Wang Y, Su M, Ang R, Lui B. A quantitative study of paste microstructures and hydration characters of sulphoaluminate cement. In: Proc. 9th int. congr. chem. cem., vol. IV. New Delhi, India; 1992. p. 454–60.
4. The influence of content and w/s ratio on the performance of calcium sulfoaluminate-based cements10.1016/S0008-8846(96)00164-0 ↗
5. Su M, Wang Y, Zhang L, Li D. Preliminary study on the durability of sulfo/ferro-aluminate cements. In: Proc. 10th int. congr. chem. cem., vol. IV. Goteborg, Sweden; 1997. p. 4iv029 [p. 12].
6. Odler · 2000
7. Accelerated test for measuring sulfate resistance of calcium sulfoaluminate, calcium aluminate and portland cements10.1061/(ASCE)0899-1561(2001)13:3(216) ↗
8. High-performance cement matrices based on calcium sulfoaluminate-belite compositions10.1016/S0008-8846(01)00649-4 ↗
9. A porosimetric study of calcium sulfoaluminate cement pastes cured at early ages10.1016/j.cemconres.2006.02.014 ↗
10. Mehta · 2006
11. Bernardo G, Buzzi L, Canonico F, Paris M, Telesca A, Valenti GL. Microstructural investigations on hydrated high-performance cements based on calcium sulfoaluminate. In: Proc. 12th int. congr. chem. cem., Paper W3–11.4, Montreal, Canada; 2007.
12. Li GS, Walenta G, Gartner EM. Formation and hydration of low-CO2 cements based on belite, calcium sulfoaluminate and calcium aluminoferrite. In: Proc. 12th int. congr. chem. cem., Paper TH3-15.3, Montreal, Canada; 2007.
13. Gastaldi D, Canonico F, Capelli L, Bianchi M, Pace ML, Telesca A, et al. Hydraulic behaviour of calcium sulfoaluminate cement alone and in mixture with Portland cement. In: Proc. 13th int. congr. chem. cem., Paper 412, Madrid, Spain; 2011.
14. Studies of calcium sulfoaluminate admixtures for expansive cements
15. Nakamura T, Sudoh G, Akaiwa S. Mineralogical composition of expansive cement clinker rich in SiO2 and its expansibility. In: Proc. 5th int. congr. chem. cem., vol. IV. Tokyo, Japan; 1968. p. 351–65.
16. Budnikov PB, Kravchenko IV. Expansive cements. In: Proc. 5th int. congr. chem. of cem., vol. V. Tokyo, Japan; 1968. p. 319–29.
17. Mechanism of expansion associated with ettringite formation10.1016/0008-8846(73)90056-2 ↗
18. Properties of Type K expansive cement of pure components10.1016/0008-8846(74)90043-X ↗
19. Further evidence for expansion of ettringite by water absorption10.1111/j.1151-2916.1978.tb09271.x ↗
20. Kurdowski W. Expansive cements. In: Proc. 7th int. congr. chem. cem., vol. I. Paris, France; 1980. p. V-2/1–10.
21. Hydration, ettringite formation and its expansive mechanism10.1016/0008-8846(81)90032-6 ↗
22. Part II-12 · 1982 · 101
23. Part III-12 · 1982 · 247
24. Expansion of ettringite by water absorption10.1016/0008-8846(82)90107-7 ↗
25. Effects of the particle sizes of expansive clinker on strength expansion characteristics of Type K expansive cements10.1016/0008-8846(82)90034-5 ↗
26. Theories of expansion in sulfoaluminate-type expansive cements: schools of thought10.1016/0008-8846(83)90082-0 ↗
27. Wang S, Ji S, Liu Y, Hu K. Effect of alkali on the expansive properties of sulfoaluminate cement pastes. In: Proc. 8th int. congr. chem. cem., vol. IV. Rio De Janeiro, Brazil; 1986. p. 301–5.
28. Herrick J, Scrivener KL, Pratt PL. The development of microstructure in calcium sulfoaluminate expansive cement. In: Proc. mat. res. soc. symp., vol. CCVL. Pittsburgh, USA; 1992. p. 277–82.10.1557/PROC-245-277 ↗
29. Formation and expansion of ettringite crystals10.1016/0008-8846(94)90092-2 ↗
30. Investigations on cement expansion associated with ettringite formation10.1016/S0008-8846(99)00048-4 ↗
31. Understanding expansion in calcium sulfoaluminate-belite cements10.1016/j.cemconres.2011.07.010 ↗
32. Discussion of the paper “Understanding expansion in calcium sulfoaluminate–belite cements” by I.A. Chen et al. Cem. Concr. Res. 42 (2012) 51–6010.1016/j.cemconres.2012.08.002 ↗
33. Sui T, Yao Y. Recent progress in special cements in China. In: Proc. 11th int. congr. chem. cem., vol. IV. Durban, South Africa; 2003. p. 2028–32.
34. Influence of the calcium sulphate source on the hydration mechanism of Portland cement–calcium sulphoaluminate clinker–calcium sulphate binders10.1016/j.cemconcomp.2011.03.005 ↗
35. Influence of a thermal cycle at early age on the hydration of calcium sulphoaluminate cements with variable gypsum contents10.1016/j.cemconres.2010.10.001 ↗
36. In-situ tomographic investigation on the early hydration behaviors of cementing systems10.1016/j.conbuildmat.2011.10.016 ↗
37. Rheological and hydration characterization of calcium sulfoaluminate cement pastes10.1016/j.cemconcomp.2012.01.008 ↗
38. Structure, atomistic simulations, and phase transition of stoichiometric yeelimite10.1021/cm400129z ↗
39. Early age hydration of calcium sulfoaluminate (synthetic ye’elimite, C4A3S‾) in the presence of gypsum and varying amounts of calcium hydroxide10.1016/j.cemconres.2013.03.001 ↗
40. Expansion mechanisms in calcium aluminate and sulfoaluminate systems with calcium sulfate10.1016/j.cemconres.2013.11.011 ↗
41. Hydraulic behaviour of calcium sulphoaluminate-based cements derived from industrial process wastes10.1016/0008-8846(93)90181-8 ↗
42. Preparation of sulphoaluminate belite cement from fly ash10.1016/0008-8846(94)90030-2 ↗
43. Industrially interesting approaches to “low-CO2’’ cements10.1016/j.cemconres.2004.01.021 ↗
44. Sustainable development and climate change initiatives10.1016/j.cemconres.2007.09.008 ↗
45. High-performance and low-CO2 cements based on calcium sulphoaluminate
46. Use of industrial byproducts as alumina sources for the synthesis of calcium sulfoaluminate cements10.1021/es2005144 ↗
47. A physico-chemical basis for novel cementitious binders10.1016/j.cemconres.2011.03.006 ↗
48. Advances in alternative cementitious binders10.1016/j.cemconres.2010.11.012 ↗
49. Crystallization in pores10.1016/S0008-8846(99)00002-2 ↗
50. Stress from crystallization of salt10.1016/j.cemconres.2003.12.034 ↗
51. Thermodynamics of crystallization stresses in DEF10.1016/j.cemconres.2007.10.002 ↗
52. Crystal growth in porous materials-I: the crystallization pressure of large crystals10.1016/j.jcrysgro.2005.05.007 ↗
53. Crystal growth in porous materials-II: influence of crystal sizes on the crystallization pressure10.1016/j.jcrysgro.2005.05.008 ↗
54. Hydration of calcium sulfoaluminate cements – experimental findings and thermodynamic modeling10.1016/j.cemconres.2009.08.014 ↗
55. Mechanism of hydration reactions in the system referred to hydration of sulfoaluminate cements10.1016/0008-8846(89)90038-0 ↗
56. Influence of calcium sulfate and calcium hydroxide on the hydration of calcium sulfoaluminate clinker
57. Synthesis and hydration of calcium sulfoaluminate–belite cements with varied phase compositions10.1007/s10853-010-5109-9 ↗
58. Unicemento, UNI 6687-73. Cement mortar. Hydraulic shrinkage determination. Laboratory test; 1973.
59. Silicon-free compounds with sodalite structure10.1002/crat.19720070125 ↗
60. Crystal structure and hydration of belite
61. The crystal structure of tricalcium aluminate10.1021/ja01383a001 ↗
62. Anhydrous sulphates. II. Refinement of the crystal structure of anhydrite
63. Structural variations in the brownmillerite series: single-crystal X-ray diffraction at 25°C and high temperature X-ray powder diffraction (25°C⩽T⩽1000°C)10.2138/am-2004-2-322 ↗
64. Neutron powder diffraction study of the akermanite–gehlenite solid solution series10.1007/BF00202107 ↗
65. Effects of temperature and pressure on the cell dimension and X-ray temperature factors of periclase
66. Structure and oxygen mobility in mayenite: a high-temperature neutron powder diffraction study10.1107/S0108768107030005 ↗
67. Ternesite, Ca5(SiO4)2SO4, a new mineral from Ettringer Bellerberg/Eifel, Germany10.1007/BF01163138 ↗
68. Taylor · 1997
69. A mercury porosimetry study of the evolution of porosity in Portland cement
70. Permeability, diffusivity, and microstructural parameters: a critical review10.1016/0008-8846(90)90101-3 ↗
71. Mercury porosimetry of hardened cement pastes10.1016/S0008-8846(99)00083-6 ↗
72. In-situ observation of ettringite crystals10.1016/j.jcrysgro.2008.09.124 ↗