Document Type
Research Article
Abstract
Self-consolidating concrete (SCC) is a concrete that able to flow and consolidate under its own weight, and it is cohesive enough to fill spaces of almost any size and shape without segregation or bleeding. In this study, workability and strength characteristics of seven SCC mixes were examined and compared with two additional vibrated mixes of normal and high strength. For this purpose, the flowability, deformability, and passing ability of fresh concrete mixes were tested through slump test, slump flow, T500, and the J-ring tests. Furthermore, the hardened concrete specimens were tested for mechanical properties with the variation in shape and size of the specimens at six different ages. The results revealed that addition of micro-silica is more effective in improving concrete workability and strength than blended micro-silica and fly ash. A well-designed SCC could have an excellent flow (730 mm) and passing ability (ΔH = 4 mm), without sacrificing the early strength (22.3 MPa in 1 day), or long-term strength (107.7 MPa in 90 days). Results also showed that the compressive strength and the tensile strength of SCC mixes were less affected by specimen shape and size compared to conventional concrete mixes.
Keywords
Self-compacting concrete, Mechanical properties, Fresh concrete, Mix proportions, Slump flow
How to Cite This Article
Ahmed, Ghafur H.
(2021)
"Influence of Mixture Proportions on Fresh and Mechanical Properties of Self-consolidating Concrete,"
Polytechnic Journal: Vol. 11:
Iss.
2, Article 4.
DOI: https://doi.org/10.25156/ptj.v11n2y2021.pp17-25
References
Afroughsabet, V., L. Biolzi and T. Ozbakkaloglu. 2017. Influence of double hooked-end steel fibers and slag on mechanical and durability properties of high performance recycled aggregate concrete. Compos. Struct. 181: 273-284.
Aggarwaz, P., R. Siddique, Y. Aggarwal and S. M. Gupta. 2008. Self-compacting concrete procedure for mix design, Leonardo Electronic J. Pract. Technol. 12: 15-24.
Ahmad, S., A. Umar and A. Masood. 2017. Properties of normal concrete, self-compacting concrete and glass fiber-reinforced self-compacting concrete: An experimental study. Proc. Eng. 173: 807-813.
Ahmed, G. H., H. Ahmed, B. Ali and R. Alyousef. 2021. Assessment of high performance self-consolidating concrete through an experimental and analytical multi-parameter approach. Materials. 14: 985.
Aslani, F. and B. Samali. 2015. Constitutive relationships for selfcompacting concrete at elevated temperatures. Mater. Struct.48: 337-356.
ASTM C136/C136M-19. 2019. Standard Test Method for Sieve Analysis of Fine and Coarse Aggregates. ASTM International, United States.
ASTM C143/C143M-20. 2020. Standard Test Method for Slump of Hydraulic-cement Concrete. ASTM International, United States.
ASTM C150/C150M-20. 2020. Standard Specification for Portland Cement. ASTM International, United States.
ASTM C1611/C1611M-18. 2018. Standard Test Method for Slump Flow of Self-consolidating Concrete. ASTM International, United States.
ASTM C1621/C1621M-17. 2017. Standard Test Method for Passing Ability of Self-consolidating Concrete by J-Ring. ASTM International, United States.
ASTM C33/C33M-18. 2018. Standard Specification for Concrete Aggregates. ASTM International.
ASTM C349-18. 2018. Standard Test Method for Compressive Strength of Hydraulic-cement Mortars (Using Portions of Prisms Broken in Flexure). ASTM International, United States.
ASTM C39/C39M-20. 2020. Standard Test Method for Compressive Strength of Cylindrical Concrete Specimens. ASTM International, United States.
ASTM C494/C494M-19. Standard Specification for Chemical Admixtures for Concrete. ASTM International, United States.
ASTM C496/C496M-17. 2017. Standard Test Method for Splitting Tensile Strength of Cylindrical Concrete Specimens. ASTM International, United States.
ASTM C78/C78M-18. 2018. Standard Test Method for Flexural Strength of Concrete (Using Simple Beam with Third-point Loading). ASTM International, United States.
Aziz, O. Q. and G. H. Ahmed. 2012. Mechanical Properties of ultra-high Performance Concrete (UHPC). 12th International Conference on Recent Advances in Concrete Technology and Sustainability Issues, Prague, Czech R., Oct. 31-Nov. 2, 2012, American Concrete Institute, ACI Special Publication (SP 289.24). p1-16.
Boel, V., K. Audenaert and G. D. Schutter. 2008. Gas permeability and capillary porosity of self-compacting concrete. Mater. Struct. 41: 1283-1290.
BS EN 12390-1. 2012. British Standard for Testing Hardened Concrete-Part 1: Shape, Dimensions and other Requirements for Specimens and Molds. BSI, London.
Dybel, P., D. Walach and K. Ostrowski. 2018. The top-bar effect in specimens with a single casting point at one edge in highperformance self-compacting concrete. J. Adv. Concrete Technol. 16: 282-292.
EFNARC. 2005. The European Guidelines for Self-Compacting Concrete Specification, Production and Use. The European Federation of Specialist Construction Chemicals and Concrete Systems.
Hamzah, A. F., M. H. W. Ibrahim, N. Jamaluddin, R. P. Jaya and N. E. Z. Abidin. 2015. Cementitious materials usage in selfcompacting concrete: A review. Adv. Mater. Res. 1113: 153-160.
Holschemaeher, K., Y. Klug and D. Weiße. 2003. Self-compacting Concrete-hardened Material Properties and Structural Behavior, System-based Vision for Strategic and Creative Design. Swets and Zeitlinger, Lisse. p1913-1919.
Kosmatka, S. H. and M. L. Wilson. 2011. Design and Control of Concrete Mixtures: The Guide to Applications, Methods, and Materials, EB001. 15th ed. Portland Cement Association, Skokie, Illinois, USA. p375-392.
Kumar, P., R. Kumar and Y. K. Gupta. 2016. Study on normally vibrated concrete to self-compacting concrete. J. Ceram. Concr. Technol. 1(3): 1-18.
Noumowe, A., H. Carre, A. Daoud and H. Toutanji. 2006. Highstrength self-compacting concrete exposed to fire test. J. Mater. Civ. Eng. 18: 754-758.
Piekarczyk, B. L. 2013. The influence of chemical admixtures on cement hydration and mixture properties of very high performance self-compacting concrete. Constr. Build. Mater. 49: 643-662.
Pineaud, A., P. Pimienta, S. Remond and H. Carre. 2016. Mechanical properties of high performance self-compacting concretes at room and high temperature. Constr. Build. Mater. 112: 747-755.
Publication Date
12-30-2021
Follow us: