Title:
Workability of Low-Clinker Mortars with Recycled Fine Aggregates and Different Polymers as Superplasticizer
Author(s):
Mareike Thiedeitz, Noah Tarrab Maslaton and Thomas Kränkel
Publication:
Symposium Paper
Volume:
362
Issue:
Appears on pages(s):
147-163
Keywords:
low clinker concrete, recycled aggregates, SCMs, workability
DOI:
10.14359/51740880
Date:
6/5/2024
Abstract:
The use of recycled aggregates in concrete has gained popularity due to its contribution to the reduction of primary resource extraction. In Germany, the use of recycled fine aggregates is not standardized while recycled aggregates larger than 2 mm can be used in concrete depending on their origin, exposure class, and humidity class. In this research framework, we investigated the workability, mechanical, and durability performance of low-clinker mortars using recycled fine aggregates compared to natural sands. Three polycarboxylate ether-based superplasticizers, differing in their polymer structure (chain lengths and charging density) were tested to achieve a comparable initial workability. Four mortar test series with recycled fine aggregates were analyzed with different supplementary cementitious materials to keep the clinker amount low. The initial water demand, presoaking of recycled aggregates, and the workability over time were tested. The workability of low-clinker mortars with recycled aggregates, analyzed through slump flow measurements, proved comparable results to natural aggregates once mixture proportions and superplasticizer type and content were adjusted. However, mechanical tests on mortars with optimized workability properties showed decreased compressive strength and increased capillary suction when using recycled fine aggregates and supplementing cement. An optimized workability procedure for enhanced mechanical properties is still ongoing research. The results are the basis for further mortar and concrete mixture optimizations to reach high-performance low-clinker mortars and concrete with recycled aggregates.
Related References:
1. OECD, “Global Material Resources Outlook to 2060: Economic Drivers and Environmental Consequences,” 2018, 24 pp.
2. “Mineral Resource Governance in the 21st Century: Gearing Extractive Industries Towards Sustainable Development,” United Nations, New York, 2020, 370 pp.
3. Götze, J., and Göbbels, M., “Einführung in die Angewandte Mineralogie,” Springer Berlin Heidelberg, Berlin, Heidelberg, 2017, 275 pp.
4. “Sand and sustainability: Finding new solutions for environmental governance of global sand resources,” United Nations Environment Programme, Nairobi, Kenya.
5. “EAPG Annual Review 20129-2020,” Belgium, 2020, 17 pp.
6. Koehnken, L., Rintoul, M. S., Goichot, M., Tickner, D., Loftus, A.-C., and Acreman, M. C., “Impacts of riverine sand mining on freshwater ecosystems: A review of the scientific evidence and guidance for future research,” River Res Applic, V. 36, No. 3, 2020, pp. 362–370.
7. Morley, J. D., Myers, R. J., Plancherel, Y., and Brito-Parada, P. R., “A Database for the Stocks and Flows of Sand and Gravel,” Resources, V. 11, No. 8, 2022, p. 72.
8. Mahadevan, P., “Sand mafias in India: disorganized crime in a growing economy,” 2019, 27 pp.
9. Lei, L., and Plank, J., “A concept for a polycarboxylate superplasticizer possessing enhanced clay tolerance,” Cement and Concrete Research, V. 42, No. 10, 2012, pp. 1299–1306.
10. Ng, S., and Plank, J., “Interaction mechanisms between Na montmorillonite clay and MPEG-based polycarboxylate superplasticizers,” Cement and Concrete Research, V. 42, No. 6, 2012, pp. 847–854.
11. Lei, L., and Plank, J., “A study on the impact of different clay minerals on the dispersing force of conventional and modified vinyl ether based polycarboxylate superplasticizers,” Cement and Concrete Research, V. 60, 2014, pp. 1–10.
12. Kaufmann, J., “Evaluation of the combination of desert sand and calcium sulfoaluminate cement for the production of concrete,” Construction and Building Materials, V. 243, 2020, p. 118281.
13. Liao, T., Zhao, H., Yuan, J., Ren, S., and Cai, H., “Study on the mechanical properties of desert sand concrete,” AETR, V. 3, No. 1, 2022, p. 80.
14. Shen, Y., Peng, C., Hao, J., Bai, Z., Li, Y., and Yang, B., “High temperature resistance of desert sand concrete: Strength change and intrinsic mechanism,” Construction and Building Materials, V. 327, 2022, p. 126948.
15. Purchase, C. K., Al Zulayq, D. M., O'Brien, B. T., Kowalewski, M. J., Berenjian, A., Tarighaleslami, A. H., and Seifan, M., “Circular Economy of Construction and Demolition Waste: A Literature Review on Lessons, Challenges, and Benefits,” Materials (Basel, Switzerland), V. 15, No. 1, 2021.
16. Menegaki, M., and Damigos, D., “A review on current situation and challenges of construction and demolition waste management,” Current Opinion in Green and Sustainable Chemistry, V. 13, 2018, pp. 8–15.
17. Umwelt-Bundesamt, “Urban Mining - Ressourcenschonung im Anthropozän,” 72 pp.
18. “Mineralische Bauabfälle Monitoring 2020,” 2020, 16 pp.
19. Müller, A., “Baustoffrecycling,” Springer Fachmedien Wiesbaden, Wiesbaden, 2018, 358 pp.
20. Ulsen, C., Antoniassi, J. L., Martins, I. M., and Kahn, H., “High quality recycled sand from mixed CDW – is that possible?,” Journal of Materials Research and Technology, V. 12, 2021, pp. 29–42.
21. Lamprecht, H.-O., “Opus caementitium: Bautechnik der Römer,” 2., durchges. Aufl., Beton-Verlag, Düsseldorf, 1985, 220 pp.
22. Stürmer, S., and Fritz, W., “Von historischen Ziegelsplittund modernen R-Betonen: Ein Plädoyer für mehr Akzeptanz von Recyclingbaustoffen,” Bausubstanz, V. 11, No. 6, 2020, pp. 37–43.
23. RILEM, “Specifications for concrete with recycled aggregates,” Mater Struct, No. 27, 1994, pp. 557–559.
24. Hansen, T. C., “Recycling of Demolished Concrete and Masonry,” Taylor and Francis, Hoboken, 2004, 316 pp.
25. Deutscher Ausschuss für Stahlbeton e. V., 1998, DAfStB-Richtlinie - Beton mit rezykliertem Zuschlag - Teil 1: Betontechnik / Teil 2: Betonzuschlag aus Betonsplitt und Betonbrechsand (Ausgabe August 1998).
26. Deutsches Institut für Normung e.V., DIN 4226-101:2017-08: Rezyklierte Gesteinskörnungen für Beton nach DIN EN 12620 - Teil 101: Typen und geregelte gefährliche Substanzen, Beuth Verlag GmbH, DIN EN 12620 –.
27. Deutsches Institut für Normung e.V., 2017, DIN 4226-102:2017-08: Rezyklierte Gesteinskörnungen für Beton nach DIN EN 12620 - Teil 102: Typprüfung und Werkseigene Produktionskontrolle, Beuth Verlag GmbH, Berlin.
28. Deutsches Institut für Normung e.V., DIN EN 12620:2008-07, Gesteinskörnungen für Beton; Deutsche Fassung EN_12620:2002+A1:2008, Beuth Verlag GmbH, Berlin.
29. “Zementmerkblatt B30 R-Beton,” 2021, 8 pp.
30. Hoffmann, C., and Jacobs, F., “Überblick über Regelungen zu Beton mit rezyklierter Gesteinskörnung,” Beton- und Stahlbetonbau, V. 105, No. 12, 2010, pp. 805–812.
31. Stürmer, S., and Geiger, S., “RC-Körnungen und R-Betone – da geht noch mehr!: Urban Mining bei Beton, R-Betone mit 100 % Natursteinersatz und RC-Estriche,” Bausubstanz, V. 14, No. 2, 2023, pp. 30–36.
32. Manzi, S., Mazzotti, C., and Bignozzi, M. C., “Short and long-term behavior of structural concrete with recycled concrete aggregate,” Cement and Concrete Composites, V. 37, 2013, pp. 312–318.
33. Scheidt, J.C. “Ermittlung des erforderlichen Gesamtwassers zur Herstellung von R-Beton mit definiertem Wasserzementwert,” Doctoralthesis, Technische Universität Kaiserslautern, 2020, VIII, 260.
34. Ayan, V., Omer, J. R., Azadani, S. M. N., Limbachiya, M. C., and Khavandi, A., “Water Absorption Study Recycled Aggregates for Use Pavement Material,” OALib, V. 01, No. 06, 2014, pp. 1–10.
35. Fernando, A., Selvaranjan, K., Srikanth, G., and Gamage, J. C. P. H., “Development of high strength recycled aggregate concrete-composite effects of fly ash, silica fume and rice husk ash as pozzolans,” Mater Struct, V. 55, No. 7, 2022.
36. Nedeljković, M., Visser, J., Šavija, B., Valcke, S., and Schlangen, E., “Use of fine recycled concrete aggregates in concrete: A critical review,” Journal of Building Engineering, V. 38, 2021, p. 102196.
37. Li, L., Xuan, D., Chu, S. H., and Poon, C. S., “Modification of recycled aggregate by spraying colloidal nano silica and silica fume,” Mater Struct, V. 54, No. 6, 2021.
38. Raman, J. V. M., and Ramasamy, V., “Various treatment techniques involved to enhance the recycled coarse aggregate in concrete: A review,” Materials Today: Proceedings, V. 45, 2021, pp. 6356–6363.
39. Zhang, W., Wang, S., Zhao, P., Lu, L., and Cheng, X., “Effect of the optimized triple mixing method on the ITZ microstructure and performance of recycled aggregate concrete,” Construction and Building Materials, V. 203, 2019, pp. 601–607.
40. Evangelista, L., and Brito, J. de, “Concrete with fine recycled aggregates: a review,” European Journal of Environmental and Civil Engineering, V. 18, No. 2, 2014, pp. 129–172.
41. Carro-López, D., González-Fonteboa, B., Brito, J. de, Martínez-Abella, F., González-Taboada, I., and Silva, P., “Study of the rheology of self-compacting concrete with fine recycled concrete aggregates,” Construction and Building Materials, V. 96, 2015, pp. 491–501.
42. Zega, C. J., and Di Maio, A. A., “Use of recycled fine aggregate in concretes with durable requirements,” Waste management (New York, N.Y.), V. 31, No. 11, 2011, pp. 2336–2340.
43. Anastasiou, E., Georgiadis Filikas, K., and Stefanidou, M., “Utilization of fine recycled aggregates in concrete with fly ash and steel slag,” Construction and Building Materials, V. 50, 2014, pp. 154–161.
44. Geng, J., and Sun, J., “Characteristics of the carbonation resistance of recycled fine aggregate concrete,” Construction and Building Materials, V. 49, 2013, pp. 814–820.
45. Khatib, J. M., “Properties of concrete incorporating fine recycled aggregate,” Cement and Concrete Research, V. 35, No. 4, 2005, pp. 763–769.
46. Fernández-Ledesma, E., Jiménez, J. R., Ayuso, J., Corinaldesi, V., and Iglesias-Godino, F. J., “A proposal for the maximum use of recycled concrete sand in masonry mortar design,” Mater. construcc., V. 66, No. 321, 2016, e075.
47. Mora-Ortiz, R. S., Díaz, S. A., Del Angel-Meraz, E., and Magaña-Hernández, F., “Recycled Fine Aggregates from Mortar Debris and Red Clay Brick to Fabricate Masonry Mortars: Mechanical Analysis,” Materials (Basel, Switzerland), V. 15, No. 21, 2022.
48. Zhao, Z., Remond, S., Damidot, D., and Xu, W., “Influence of fine recycled concrete aggregates on the properties of mortars,” Construction and Building Materials, V. 81, 2015, pp. 179–186.
49. Cartuxo, F., Brito, J. de, Evangelista, L., Jiménez, J. R., and Ledesma, E. F., “Rheological behaviour of concrete made with fine recycled concrete aggregates – Influence of the superplasticizer,” Construction and Building Materials, V. 89, 2015, pp. 36–47.
50. Martínez, I., Etxeberria, M., Pavón, E., and Díaz, N., “A comparative analysis of the properties of recycled and natural aggregate in masonry mortars,” Construction and Building Materials, V. 49, 2013, pp. 384–392.
51. Deutsches Institut für Bautechnik DIBt, “Allgemeine bauaufsichtliche ZulassungNr. Z-3.51-2184,” 2021, 6 pp.
52. Deutsches Institut für Normung e.V., DIN EN 197-1:2011-11, Zement_- Teil_1: Zusammensetzung, Anforderungen und Konformitätskriterien von Normalzement; Deutsche Fassung EN_197-1:2011, Beuth Verlag GmbH, Berlin.
53. Deutsches Institut für Normung e.V., DIN EN 933-11:2011-05, Prüfverfahren für geometrische Eigenschaften von Gesteinskörnungen_- Teil_11: Einteilung der Bestandteile in grober recyclierter Gesteinskörnung; Deutsche Fassung EN_933-11:2009_+ AC:2009, Beuth Verlag GmbH, Berlin.
54. Deutsches Institut für Normung e.V., DIN EN 1097-6 // DIN EN 1097-6:2022-05, Prüfverfahren für mechanische und physikalische Eigenschaften von Gesteinskörnungen_- Teil_6: Bestimmung der Rohdichte und der Wasseraufnahme; Deutsche Fassung EN_1097-6:2022, Beuth Verlag GmbH, Berlin.
55. Lu, Z. C., Haist, M., Ivanov, D.,et al.., “Characterization data of reference cement CEM I 42.5 R used for priority program DFG SPP 2005 "Opus Fluidum Futurum - Rheology of reactive, multiscale, multiphase construction materials",” Data in brief, V. 27, 2019, p. 104699.
56. Pott, U., Crasselt, C., Fobbe, N., et al.., “Characterization data of reference materials used for phase II of the priority program DFG SPP 2005 "Opus Fluidum Futurum - Rheology of reactive, multiscale, multiphase construction materials",” Data in brief, V. 47, 2023, p. 108902.
57. Thiedeitz, M., Schmidt, W., Härder, M., and Kränkel, T., “Performance of Rice Husk Ash as Supplementary Cementitious Material after Production in the Field and in the Lab,” Materials (Basel, Switzerland), V. 13, No. 19, 2020.
58. Lei, L., Chomyn, C., Schmid, M., and Plank, J., “Characterization data of reference industrial polycarboxylate superplasticizers used within Priority Program DFG SPP 2005 "Opus Fluidum Futurum - Rheology of reactive, multiscale, multiphase construction materials",” Data in brief, V. 31, 2020, p. 106026.
59. Puntke, W., “Wasseranspruch von feinen Kornhaufwerken,” Beton, V. 52, 2002, pp. 242–248.
60. Deutsches Institut für Normung e.V., DIN EN 196-1:2016-11, Prüfverfahren für Zement_- Teil_1: Bestimmung der Festigkeit; Deutsche Fassung EN_196-1:2016, Beuth Verlag GmbH, Berlin.
61. Deutsches Institut für Normung e.V., DIN EN 1015-3:2007-05, Prüfverfahren für Mörtel für Mauerwerk_- Teil_3: Bestimmung der Konsistenz von Frischmörtel (mit Ausbreittisch); Deutsche Fassung EN_1015-3:1999+A1:2004+A2:2006, Beuth Verlag GmbH, Berlin.
62. Deutsches Institut für Normung e.V., DIN EN 12350-5:2019-09, Prüfung von Frischbeton_- Teil_5: Ausbreitmaß; Deutsche Fassung EN_12350-5:2019, Beuth Verlag GmbH, Berlin.
63. Deutsches Institut für Normung e.V., DIN EN 13057:2002 Bestimmung der kapillaren Wasseraufnahme, Beuth Verlag GmbH, DIN EN 13057:2002.