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A study on properties of masonry mortar containing recycled fine aggregate | ||
| تحقیقات بتن | ||
| Article 7, Volume 16, Issue 2 - Serial Number 42, June 2023, Pages 85-96 PDF (717.37 K) | ||
| Document Type: Research Paper | ||
| DOI: 10.22124/jcr.2023.21865.1565 | ||
| Authors | ||
| Milad Aghililotf1; Mohammad Kuroshkarim1; Mohammad Yaser Chamani1; Amir Mohammad Ramezanianpour* 2 | ||
| 1Faculty of Civil Engineering, College of Engineering, University of Tehran, Tehran, Iran | ||
| 2Faculty of Civil Engineering, College of Engineering, University of Tehran, Tehran, Iran | ||
| Abstract | ||
| In this paper, the fresh and hardened properties of mortars containing different percentages of recycled sand made from crushed concrete blocks were studied. For this purpose, natural sand was substituted with recycled sand in 0, 25, 50, 75, and 100 percentages. The same particle size distribution for both natural and recycled materials was used. Also, the water to cement ratio was considered 0.55, and the cement to sand weight ratio was considered to be 1:3. Physical properties including water absorption, water permeability, and bulk density of fresh and hardened mortar, and mechanical properties including compressive and bending strength, resistance against freezing and thawing cycles, and drying shrinkage were examined. The experimental results suggest that mortars made with recycled sand had acceptable compressive strengths all above 10 MPa. By increasing the substitution ratio, the workability and workable time of mortars were reduced. Masonry mortar made with recycled fine aggregate had acceptable resistance against freezing and thawing cycles according to ASTM C666. Results of the drying shrinkage test showed that masonry mortar made with recycled sand had more drying shrinkage than mortars made with natural sand which is a result of a more hardened cement volume ratio in the samples containing recycled sand. Overall, it can be concluded that up to 50% replacement level of aggregate can have reasonable mechanical and durability properties and may be suitable for sustainable development. | ||
| Keywords | ||
| Recycled concrete fine aggregate; drying shrinkage; masonry mortar; resistance against freezing and thawing cycles | ||
| References | ||
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[1] Tošić N, Marinković S, Dašić T, Stanić M. Multicriteria optimization of natural and recycled aggregate concrete for structural use. Journal of Cleaner Production. 2015;87(1):766–76.
[2] Debieb F, Courard L, Kenai S, Degeimbre R. Roller compacted concrete with contaminated recycled aggregates. Construction and Building Materials. 2009 Nov;23.
[3] Poon C-S, Chan D. The use of recycled aggregate in concrete in Hong Kong. Resources, Conservation and Recycling. 2007 May;50.
[4]Xiao J, Xie H, Zhang C. Investigation on building waste and reclaim in Wenchuan earthquake disaster area. Resources, Conservation and Recycling. 2012 Apr;61.
[5] Martín-Morales M, Zamorano M, Ruiz-Moyano A, Valverde-Espinosa I. Characterization of recycled aggregates construction and demolition waste for concrete production following the Spanish Structural Concrete Code EHE-08. Construction and Building Materials. 2011 Feb;25.
[6] Marinković S, Radonjanin V, Malešev M, Ignjatović I. Comparative environmental assessment of natural and recycled aggregate concrete. Waste Management. 2010 Nov;30(11).
[7] Levy SM, Helene P. Durability of recycled aggregates concrete: a safe way to sustainable development. Cement and Concrete Research. 2004 Nov;34.
[8] Ajdukiewicz A, Kliszczewicz A. Influence of recycled aggregates on mechanical properties of HS/HPC. Cement and Concrete Composites. 2002 Apr;24.
[9] Kou SC, Poon CS. Effect of the quality of parent concrete on the properties of high performance recycled aggregate concrete. Construction and Building Materials. 2015 Feb 15;77:501–8.
[10] Khatib JM. Properties of concrete incorporating fine recycled aggregate. Cement and Concrete Research. 2005 Apr;35.
[11] Evangelista L, de Brito J. Mechanical behaviour of concrete made with fine recycled concrete aggregates. Cement and Concrete Composites. 2007 May;29.
[12] Saiz Martínez P, González Cortina M, Fernández Martínez F, Rodríguez Sánchez A. Comparative study of three types of fine recycled aggregates from construction and demolition waste (CDW), and their use in masonry mortar fabrication. Journal of Cleaner Production. 2016 Apr;118.
[13] Le T, Rémond S, le Saout G, Garcia-Diaz E. Fresh behavior of mortar based on recycled sand – Influence of moisture condition. Construction and Building Materials. 2016 Mar;106.
[14] Ledesma EF, Jiménez JR, Fernández JM, Galvín AP, Agrela F, Barbudo A. Properties of masonry mortars manufactured with fine recycled concrete aggregates. Construction and Building Materials. 2014 Nov;71.
[15] ASTM C 144. Standard Specification for Aggregate for Masonry Mortar. 2004.
[16] BS EN. 1015-3 (1999). Methods of test for mortar for masonry part 3: Determination of consistence of fresh mortar (by flow table).
[17] BS EN 1015-9. (1999). Methods of test for mortar for masonry Part 9: Determination of workable life and correction time of fresh mortar.
[18] BS EN 1015-6. (1999). Methods of test for mortar for masonry Part 6: Determination of bulk density of fresh mortar.
[19] BS EN 1015-11. (1999). Methods of test for mortar for masonry Part 11: Determination of flexural and compressive strength of hardened mortar.
[20] BS EN 1015-18. (1999). Methods of test for mortar for masonry Part 18: Determination of water absorption coefficient due to capillary action of hardened mortar.
[21] BS EN 1015-10. Methods of test for mortar for masonry Part 10: Determination of dry bulk density of hardened mortar. 1999.
[22] ASTM C666 / C666M-03. Standard Test Method for Resistance of Concrete to Rapid Freezing and Thawing, ASTM International, West Conshohocken, PA. 2008.
[23] ASTM C 1148. Standard test method for measuring the drying shrinkage of masonry mortar. 2008.
[24] Leite, M.B., Figueire do Filho, J.G.L. & Lima, P.R.L. Workability study of concretes made with recycled mortar aggregate. Mater Struct 46, 1765–1778 (2013).
[25] Sara Jesus, Cinthia Maia, Catarina Brazão Farinha, Jorge de Brito, Rosário Veiga, Rendering mortars with incorporation of very fine aggregates from construction and demolition waste, Construction and Building Materials,Volume 229, 2019.
[26] Huixia Wu, Changqing Wang, Zhiming Ma, Drying shrinkage, mechanical and transport properties of sustainable mortar with both recycled aggregate and powder from concrete waste, Journal of Building Engineering, Volume 49, 2022.
[27]ملات بنایی- ویژگی ها- قسمت دو: ملات برای کارهای بنایی. مؤسسه استاندارد و تحقیقات صنعتی ایران. 1392
[28] Cuenca-Moyano GM, Martín-Pascual J, Martín-Morales M, Valverde-Palacios I, Zamorano M. Effects of water to cement ratio, recycled fine aggregate and air entraining/plasticizer admixture on masonry mortar properties. Construction and Building Materials. 2020 Jan 10;230.
[29] Zhiming Ma, Jiaxin Shen, Changqing Wang, Huixia Wu, Characterization of sustainable mortar containing high-quality recycled manufactured sand crushed from recycled coarse aggregate, Cement and Concrete Composites, Volume 132, 2020. | ||
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