Analysis of compressive strength of concrete prepared by triplemixing technology depending on both the discharge and curing time

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Compressive strength of concrete having recycled concrete aggregate is influenced by the properties and amount of those aggregate. The worse quality of RCA can be eliminated by specific mixing approach. Practical mixing and delivery of concrete could affect the properties of ready concrete due to prolonged time. In this paper, both the fly ash and fine fraction of recycled concrete were used to improve the quality of concrete due to coating of RCA, while the triple mixing technology was applied for this purpose. The compressive strength is evaluated from two aspects: the curing time (2, 28 and 90 days) and discharge time (0, 45 and 90 minutes after mixing) with attention being paid to the type of aggregate and the type of coating material. When using triple mixing technology, prolonged discharge time brings only small effect on the compressive strength (up to 12%) both in positive and negative way, depending on kind of coating material.

[1] Ahmed, B. & Rahman, M. (2015) Assessment of Compressive Strength of Concrete Based On Combination of Different Sizes of Aggregate. International Journal of Advanced Structures and Geotechnical Engineering. 4 (3), 148-152.

[2] Oikonomou, N.D. (2005) Recycled concrete aggregates. Cement and Concrete Composites. 27 (2), 315-318. DOI:10.1016/j.cemconcomp.2004.02.020

[3] Spaeth, V. & Djerbi-Tegguer, A. (2013) Treatment of recycled concrete aggregates by Si-based polymers. International Journal of Civil and Environmental Engineering. 7 (1), 16-20.

[4] Abdel-Hay, A.S. (2015) Properties of recycled concrete aggregate under different curing conditions. Housing and Building National Research Center.DOI:10.1016/j.hbrcj.2015.07.001

[5] McNeil, K. & Kang, T.H.-K. (2013) Recycled Concrete Aggregates: A Review. International Journal of Concrete Structures and Materials. 7 (1), 61-69. DOI:10.1007/s40069-013-0032-5

[6] Janković, K., Nikolić, D., Bojović, D., Lončar, L., & Romakov, Z. (2011) The estimation of compressive strength of normal and recycled aggregate concrete. FACTA UNIVERSITATIS: Architecture and Civil Engineering. 9 (3), 419-431. DOI:10.2298/FUACE1103419J

[7] Chai, N.S.N. (2004) High-strength structural concrete with recycled aggregates. in: Univ. South. Qld. Fac. Eng. Surv., Queensland, Australiap. 112

[8] Xiao, J., Li, J., & Zhang, C. (2005) Mechanical properties of recycled aggregate concrete under uniaxial loading. Cement and Concrete Research. 35 (6), 1187-1194. DOI:10.1016/j.cemconres.2004.09.020

[9] Patel, M.K., Nayak, C., & Patel, S. (2017) Use of recycled aggregates in concrete: A critical review. International Journal For Technical Education And Research Innovations. 1 (6), 1-6.

[10] Tam, V.W.Y., Tam, C.M., & Wang, Y. (2007) Optimization on proportion for recycled aggregate in concrete using two-stage mixing approach. Construction and Building Materials. 21 (10), 1928-1939. DOI:10.1016/j.conbuildmat.2006.05.040

[11] Otsuki, N., Miyazato, S., & Yodsudjai, W. (2003) Influence of Recycled Aggregate on Interfacial Transition Zone, Strength, Chloride Penetration and Carbonation of Concrete. Journal of Materials in Civil Engineering. 15 (5), 443-451. DOI:10.1061/(ASCE)0899-1561(2003)15:5(443)

[12] Uniyal, S. & Aggrawal, V. (2014) Two-Stage Mixing Approach (TSMA) Versus Normal Mixing Approach(NMA) For Concrete in Terms of Compressive Strength And Carbonation Depth. International Journal for Scientific Research & Development. 2 (5), 721-725.

[13] Tam, V.W.Y., Gao, X.F., & Tam, C.M. (2005) Microstructural analysis of recycled aggregate concrete produced from two-stage mixing approach. Cement and Concrete Research. 35 (6), 1195-1203. DOI:10.1016/j.cemconres.2004.10.025

[14] Kong, D., Lei, T., Zheng, J., Ma, C., Jiang, J., & Jiang, J. (2010) Effect and mechanism of surface-coating pozzalanics materials around aggregate on properties and ITZ microstructure of recycled aggregate concrete. Construction and Building Materials. 24 (5), 701-708. DOI:10.1016/j.conbuildmat.2009.10.038

[15] Lee, S.-H., Hong, K.-N., Park, J.-K., & Ko, J. (2014) Influence of Aggregate Coated with Modified Sulfur on the Properties of Cement Concrete. Materials. 7 (6), 4739-4754. DOI:10.3390/ma7064739

[16] Sicakova, A. & Urban, K. (2017) Comparison of capillary water content of concrete with BFS aggregate and prepared by triple-mixing method. in: CONSTRUMAT 2017, STU, Bratislavapp. 252-259

[17] Sicakova, A. & Urban, K. (2017) Technologies of multi-stage concrete mixing. in: Betón 2017, pp. 113-121

[18] Junak, J. & Sicakova, A. (2017) Benefits of aggregates surface modification in concrete production. IOP Conference Series: Earth and Environmental Science. 92 1-5. DOI:10.1088/1755-1315/92/1/012023

[19] Lowke, D. & Schiessl, P. (2005) Effect of mixing energy on fresh properties of SCC. in: Proc. 4th Int. RILEM Symp. Self-Compact. Concr., Chicago, USA

[20] Ravina, D. (1996) Effect of Prolonged Mixing on Compressive Strength of Concrete with and without Fly Ash And/or Chemical Admixtures. Materials Journal. 93 (5), 451-456.

[21] Kırca, Ö., Turanlı, L., & Erdoğan, T.Y. (2002) Effects of retempering on consistency and compressive strength of concrete subjected to prolonged mixing. Cement and Concrete Research. 32 (3), 441-445.

[22] STN EN 12390-3:2010 Testing hardened concrete. Compressive strength of test specimens. Slovak Office of Standards, Metrology and Testing, Bratislava, 2010.

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