Title:
Environmentally Friendly Concretes Manufactured with CSA Cement
Author(s):
Luigi Coppola, Denny Coffetti, and Elena Crotti
Publication:
Symposium Paper
Volume:
326
Issue:
Appears on pages(s):
51.1-51.10
Keywords:
Calcium sulphoaluminate cement, Portland cement, supplementary cementitious materials, sustainability, ternary binders, concrete
DOI:
10.14359/51711034
Date:
8/10/2018
Abstract:
A ternary binder based on ordinary Portland cement (OPC), a commercial CSA clinker and a technical grade anhydrite (CS̅) was used to manufacture the reference concretes (CSA:OPC:CS̅ = 40:40:20). Ground granulated blast furnace slag (S), low calcium siliceous type V fly ash (FA) and an hydrated lime (CH) CL90-S were employed to replace totally OPC in environmentally friendly mixtures (CSA:SCM:CH:CS̅= 40:35:5:20). Tartaric acid-based set-retarding admixture was added at 0.4% vs binder mass and the mixing water was fixed equal to about 200 kg/m3. Experimental data show that the water/binder ratio does not strongly influence the slump of concretes and the workability loss over time. In general, it is possible to conclude that, for practical uses, OPC- or S-based concretes require greater set-retarding admixture dosage than that needed for FA compounds. Furthermore, results indicated that water/binder is, similarly to OPC-based concretes, a key factor in the development of mechanical performances. Moreover, by replacing OPC with hydrated lime and SCMs, negligible changes in 24-hours strength are noted while 30% reduction in compressive strength at 7 and 28 days from casting is achieved, independently of w/b ratio adopted. Also, the curing conditions strongly influence the performances of mixtures. In fact, reference concrete cured in dry environment (T = 20°C, R.H. 60%) are characterized by strength greater than 15% compared to that of wet cured mixture. On the contrary, mixtures containing SCMs show more marked differences between wet and dry curing. Finally, total replacement of OPC with CSA:SCM:CH:CS̅ determines a sharp reduction in greenhouse gases emissions and energy requirement up to 60% at equal strength class respect to reference OPC-mixture.
Related References:
1. L. Barcelo, J. Kline, G. Walenta, E. Gartner, Cement and carbon emissions, Mater. Struct. 47 (2014) 1055–1065. doi: 10.1617/s11527-013-0114-5
2. J.S. Damtoft, J. Lukasik, D. Herfort, D. Sorrentino, E.M. Gartner, Sustainable development and climate change initiatives, Cem. Concr. Res. 38 (2008) 115–127. doi: 10.1016/J.CEMCONRES.2007.09.008
3. M. Schneider, M. Romer, M. Tschudin, H. Bolio, Sustainable cement production-present and future, Cem. Concr. Res. 41 (2011) 642–650. doi: 10.1016/j.cemconres.2011.03.019.
4. L. Coppola, D. Coffetti, E. Crotti, Plain and ultrafine fly ashes based mixtures for environmentally friendly construction materials, Sustainability. 10 (2018) 874. doi: 10.3390/su10030874
5. L. Coppola, T. Cerulli, D. Salvioni, Sustainable development and durability of self-compacting concretes, in: 11th Int. Conf. Fract. 2005, ICF11, 2005.
6. L. Coppola, R. Troli, S. Collepardi, A. Borsoi, T. Cerulli, M. Collepardi, Innovative cementitious materials from HPC to RPC - Part II. The effect of cement and silica fume type on the compressive strength of reactive powder concrete | Materiali cementizi innovativi: Dagli HPC verso gli RPC - Parte II. L’influenza del cemento e , Ind. Ital. Del Cem. 66 (1996).
7. L. Coppola, D. Coffetti, S. Lorenzi, Cement-Based Renders Manufactured with Phase-Change Materials: Applications and Feasibility, Adv. Mater. Sci. Eng. 2016 (2016). doi: 10.1155/2016/7254823
8. L. Coppola, P. Kara, S. Lorenzi, Concrete manufactured with crushed asphalt as partial replacement of natural aggregates, Mater. Constr. 66 (2016). doi: 10.3989/mc.2016.06515
9. L. Coppola, A. Buoso, D. Coffetti, P. Kara, S. Lorenzi, Electric arc furnace granulated slag for sustainable concrete, Constr. Build. Mater. 123 (2016) 115–119.
10. L. Coppola, S. Lorenzi, S. Pellegrini, Rheological and mechanical performances of concrete manufactured by using washing water of concrete mixing transport trucks, in: Am. Concr. Institute, ACI Spec. Publ., 2015.
11. L. Coppola, S. Lorenzi, A. Buoso, Electric arc furnace granulated slag as a partial replacement of natural aggregates for concrete production, in: 2nd Int. Conf. Sustain. Constr. Mater. Technol., 2010.
12. L. Coppola, S. Lorenzi, P. Marcassoli, G. Marchese, Concrete production by using cast iron industry by-products | Impiego di sottoprodotti dell’industria siderurgica nel confezionamento di calcestruzzo per opere in c.a. e c.a.p, Ind. Ital. Del Cem. 77 (2007).
13. L. Coppola, G. Belz, G. Dinelli, M. Collepardi, Prefabricated building elements based on FGD gypsum and ashes from coal-fired electric generating plants, Mater. Struct. Constr. 29 (1996).
14. T. Stanèk, P. Sulovsky, Active low-energy belite cement, Cem. Concr. Res. 68 (2015) 203–210. doi: 10.1016/j.cemconres.2014.11.004.
15. C. Shi, J. Qian, High performance cementing materials from industrial slags - A review, Resour. Conserv. Recycl. 29 (2000) 195–207.
16. B. Sabir, S. Wild, J. Bai, Metakaolin and calcined clays as pozzolans for concrete: A review, Cem. Concr. Compos. 23 (2001) 441–454.
17. A. Telesca, M. Marroccoli, M.L. Pace, M. Tomasulo, G.L. Valenti, P.J.M. Monteiro, A hydration study of various calcium sulfoaluminate cements, Cem. Concr. Compos. 53 (2014) 224–232. doi: 10.1016/j.cemconcomp.2014.07.002
18. G. Bernardo, A. Telesca, G.L. Valenti, A porosimetric study of calcium sulfoaluminate cement pastes cured at early ages, Cem. Concr. Res. 36 (2006) 1042–1047.
19. L. Coppola, D. Coffetti, E. Crotti, Use of tartaric acid for the production of sustainable Portland-free CSA-based mortars, Constr. Build. Mater. 171 (2018) 243–249. doi: 10.1016/j.conbuildmat.2018.03.137
20. M. García-Maté, A.G. De La Torre, L. León-Reina, M.A.G. Aranda, I. Santacruz, Hydration studies of calcium sulfoaluminate cements blended with fly ash, Cem. Concr. Res. 54 (2013) 12–20. doi: 10.1016/j.cemconres.2013.07.010
21. J.L. Provis, S.A. Bernal, Geopolymers and Related Alkali-Activated Materials, Annu. Rev. Mater. Res. 44 (2014) 299–327.
22. L. Coppola, D. Coffetti, E. Crotti, Pre-packed alkali activated cement-free mortars for repair of existing masonry buildings and concrete structures, Constr. Build. Mater. 173 (2018) 111–117. doi: 10.1016/j.conbuildmat.2018.04.034.
23. A. Mobili, A. Belli, C. Giosuè, T. Bellezze, F. Tittarelli, Metakaolin and fly ash alkali-activated mortars compared with cementitious mortars at the same strength class, Cem. Concr. Res. 88 (2016) 198–210. doi: 10.1016/j.cemconres.2016.07.004
24. L. Coppola, S. Lorenzi, P. Kara, S. Garlati, Performance and compatibility of phosphonate-based superplasticizers for concrete, Buildings. 7 (2017). doi: 10.3390/buildings7030062.
25. L. Coppola, S. Lorenzi, S. Garlati, P. Kara, The rheological and mechanical performances of concrete manufactured with blended admixtures based on phosphonates, 2016. doi: 10.4028/www.scientific.net/KEM.674.159
26. L. Coppola, A. Buoso, S. Lorenzi, Compatibility issues of NSF-PCE superplasticizers with several lots of different cement types (long-term results), Kuei Suan Jen Hsueh Pao/Journal Chinese Ceram. Soc. 38 (2010).
27. Y. Zhang, M. Collepardi, L. Coppola, W.L. Guan, P. Zaffaroni, Optimization of the high-strength superplasticized concrete of the Three-Gorge dam in China | Ottimizzazione del calcestruzzo ad alta resistenza meccanica con superfluidificante per la diga delle Tre Gole in Cina, Ind. Ital. Del Cem. 73 (2003).
28. S. Monosi, R. Troli, L. Coppola, M. Collepardi, Water reducers for the high alumina cement-silica fume system, Mater. Struct. Constr. 29 (1996).
29. L. Coppola, D. Coffetti, E. Crotti, Innovative carboxylic acid waterproofing admixture for self-sealing watertight concretes, Constr. Build. Mater. 171 (2018). doi: 10.1016/j.conbuildmat.2018.03.201
30. T. Pastore, M. Cabrini, L. Coppola, S. Lorenzi, P. Marcassoli, A. Buoso, Evaluation of the corrosion inhibition of salts of organic acids in alkaline solutions and chloride contaminated concrete, Mater. Corros. 62 (2011). doi: 10.1002/maco.201005789
31. F. Bolzoni, L. Coppola, S. Goidanich, L. Lazzari, M. Ormellese, M.P. Pedeferri, Corrosion inhibitors in reinforced concrete structures Part 1: Preventative technique, Corros. Eng. Sci. Technol. 39 (2004). doi: 10.1179/147842204X2871
32. L. Coppola, A. Buoso, F. Corazza, Electrical properties of carbon nanotubes cement composites for monitoring stress conditions in concrete structures, 2011. doi: 10.4028/www.scientific.net/AMM.82.118
33. L. Coppola, E. Cadoni, D. Forni, A. Buoso, Mechanical characterization of cement composites reinforced with fiberglass, carbon nanotubes or glass reinforced plastic (GRP) at high strain rates, 2011. doi: 10.4028/www.scientific.net/AMM.82.190
34. K. De Weerdt, A. Colombo, L. Coppola, H. Justnes, M.R. Geiker, Impact of the associated cation on chloride binding of Portland cement paste, Cem. Concr. Res. 68 (2015). doi: 10.1016/j.cemconres.2014.01.027
35. M. Marroccoli, F. Montagnaro, A. Telesca, G.L. Valenti, Environmental implications of the manufacture of calcium sulfoaluminate-based cements, 2nd Int. Conf. Sustain. Constr. Mater. Technol. 1 (2010) 625–635.
36. L. Pelletier, F. Winnefeld, B. Lothenbach, The ternary system Portland cement-calcium sulphoaluminate clinker-anhydrite: Hydration mechanism and mortar properties, Cem. Concr. Compos. 32 (2010) 497–507. doi: 10.1016/j.cemconcomp.2010.03.010
37. L. Pelletier-Chaignat, F. Winnefeld, B. Lothenbach, G. Le Saout, C.J. Müller, C. Famy, Influence of the calcium sulphate source on the hydration mechanism of Portland cement-calcium sulphoaluminate clinker-calcium sulphate binders, Cem. Concr. Compos. 33 (2011) 551–561. doi: 10.1016/j.cemconcomp.2011.03.005
38. R. Trauchessec, J.M. Mechling, A. Lecomte, A. Roux, B. Le Rolland, Hydration of ordinary Portland cement and calcium sulfoaluminate cement blends, Cem. Concr. Compos. 56 (2015) 106–114. doi: 10.1016/j.cemconcomp.2014.11.005
39. S.W. Tang, H.G. Zhu, Z.J. Li, E. Chen, H.Y. Shao, Hydration stage identification and phase transformation of calcium sulfoaluminate cement at early age, Constr. Build. Mater. 75 (2015) 11–18. doi: 10.1016/j.conbuildmat.2014.11.006
40. G. Velazco, J.M. Almanza, D.A. Cortés, J.C. Escobedo, Effect of citric acid and the hemihydrate amount on the properties of a calcium sulphoaluminate cement, Mater. Constr. 64 (2014) 1–8.
41. F. Winnefeld, B. Lothenbach, Hydration of calcium sulfoaluminate cements — Experimental findings and thermodynamic modelling, Cem. Concr. Res. 40 (2010) 1239–1247.
42. F.P. Glasser, L. Zhang, High-performance cement matrices based on calcium sulfoaluminate-belite compositions, Cem. Concr. Res. 31 (2001) 1881–1886. doi: 10.1016/S0008-8846(01)00649-4
43. S. Ioannou, L. Reig, K. Paine, K. Quillin, Properties of a ternary calcium sulfoaluminate-calcium sulfate-fly ash cement, Cem. Concr. Res. 56 (2014) 75–83. doi: 10.1016/j.cemconres.2013.09.015
44. S. Ioannou, K. Paine, L. Reig, K. Quillin, Performance characteristics of concrete based on a ternary calcium sulfoaluminate-anhydrite-fly ash cement, Cem. Concr. Compos. 55 (2015) 196–204. doi: 10.1016/j.cemconcomp.2014.08.009