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Effects of the sole or combined use of chemical admixtures on properties of self-compacting concrete

Wybrane pełne teksty z tego czasopisma
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Warianty tytułu
Języki publikacji
EN
Abstrakty
EN
Chemical additives are very important in determining the behavioral characteristics of self-compacting concrete. For this reason, determining the building materials that make up the chemical structure of self-compacting concrete and the interactions of these materials is of great importance. The present study pertains to the effects of the use of different chemical admixtures (high-range water-reducing, i.e., superplasticizer, hydration accelerating, air-entraining, shrinkage reducing, and hydration heat reducing admixtures) on the fresh and hardened properties of self-compacting concrete. The influence of using a single one or a hybrid combination of the air-entraining, hydration-accelerating, heat-reducing, and shrinkage-reducing admixtures on the mechanical properties of fresh and hardened SCC was investigated through a set of tests. For this purpose, sixteen different SCC mixtures with different combinations of chemical additives were prepared and tested. The properties of fresh concrete were examined as well as the compressive and tensile strengths of the mixtures. SCC mixtures with shrinkage-reducing admixtures were evaluated in terms of shrinkage development. The effect of the use of admixtures was found to be more pronounced on the early-age concrete strength. The use of any type of additive in addition to the shrinkage-reducing admixture increased the speed of flow of fresh concrete.
Rocznik
Strony
263--276
Opis fizyczny
Bibliogr. 30 poz., wykr.
Twórcy
autor
  • Department of Civil Engineering, Kırıkkale University, 71451 Kırıkkale, Turkey
autor
  • Department of Civil Engineering, Kırıkkale University, 71451 Kırıkkale, Turkey
autor
  • Department of Civil Engineering, Kırıkkale University, 71451 Kırıkkale, Turkey
  • Department of Civil Engineering, Kırıkkale University, 71451 Kırıkkale, Turkey
Bibliografia
  • [1] Oltulu M, Alameri IA. The mechanical properties of concrete with red mud (bauxite residue) and nano-Al2O3 at high temperatures. Fresenius Environ Bull. 2019;28(6):4692–701.
  • [2] Khayat KH. Workability, testing, and performance of self-consolidating concrete. ACI Mater J. 1999;96:346–53.
  • [3] Okamura H, Ozawa K, Ouchi M. Self-compacting concrete. Struct Concr. 2000;1:3–17.
  • [4] Dadsetan S, Bai J. Mechanical and microstructural properties of self-compacting concrete blended with metakaolin, ground granulated blast-furnace slag and fly ash. Constr Build Mater. 2017;146:658–67. https://doi.org/10.1016/j.conbuildmat.2017.04. 158.
  • [5] Şahmaran M, Christianto HA, Yaman İÖ. The effect of chemical admixtures and mineral additives on the properties of self-compacting mortars. Cem Concr Compos. 2006;28(5):432–40. https://doi.org/10.1016/j.cemconcomp.2005.12.003.
  • [6] Leemann A, Hoffmann C. Properties of self-compacting and conventional concrete differences and similarities. Mag Concr Res. 2005;57(6):315–9. https://doi.org/10.1680/macr.2005.57.6.315.
  • [7] Turcry P, Loukili A. Evaluation of plastic shrinkage cracking of self-consolidating concrete. ACI Mater J. 2001;03(4):272–9.
  • [8] Maia L, Figueiras H, Nunes S, Azenha M, Figueiras J. Influence of shrinkage reducing admixtures on distinct SCC mix compositions. Constr Build Mater. 2012;35:304–12. https://doi.org/10.1016/j.conbuildmat.2012.02.033.
  • [9] Demir İ, Sevim Ö, Tekin E. The effects of shrinkage-reducing admixtures used in self-compacting concrete on its strength and durability. Constr Build Mater. 2018;172:153–65. https://doi.org/10.1016/j.conbuildmat.2018.03.250.
  • [10] Olowofoyeku AM, Ofuyatan OM, Oluwafemi J, Ajao A, David O. Effect of superplasticizer on workability and properties of self-compacting concrete. J Phys Conf Ser. 2019;1378(4):042088. https://doi.org/10.1088/1742-6596/1378/4/042088.
  • [11] Ramachandran VS. Concrete admixtures handbook-properties, sciences and technology. Park Ridge: William Andrew Publishing; 1995.
  • [12] Prudencio LR. Accelerating admixtures for shotcrete. Cem Concr Compos. 1998;20:213–9. https://doi.org/10.1016/S0958-9465(98)80007-3.
  • [13] Salvador RP, Cavalaro SH, Cincotto MA, de Figueiredo AD. Parameters controlling early age hydration of cement pastes containing accelerators for sprayed concrete. Cem Concr Res.2016;89:230–48. https://doi.org/10.1016/j.cemconres.2016.09.002.
  • [14] Łaźniewska-Piekarczyk B. The type of air-entraining and viscosity modifying admixtures and porosity and frost durability of high performance self-compacting concrete. Constr Build Mater. 2013;40:659–71. https://doi.org/10.1016/j.conbuildmat.2012.11.032.
  • [15] Hwang SD, Khayat KH. Performance of hardened self-consolidating concrete designed for repair applications. In: Proceedings of the 4th International RILEM Symposium on SCC. Chicago: Illinois; 2005. pp. 965–71.
  • [16] Nagataki S, Gomi H. Expansive admixtures (mainly ettringite). Cem Concr Compos. 1998;20(2–3):163–70. https://doi.org/10.1016/S0958-9465(97)00064-4.
  • [17] TS EN 197–1. Cement–part 1: composition, specifications and conformity criteria for common cements. Ankara: Turkish Standard Institution; 2012.
  • [18] TS EN 12390–3. Testing hardened concrete: part 3: compressive strength of test specimens. Ankara: Turkish Standard Institution; 2019.
  • [19] TS EN 12390-6. Testing hardened concrete: part 6: tensile splitting strength of test specimens. Ankara: Turkish Standard Institution; 2010.
  • [20] EFNARC The European guidelines for self-compacting concrete. Specification, production and use. United Kingdom: European Federation of National Associations Representing Producers and Applicators of Specialist Building Products for Concrete; 2005.
  • [21] Aggoun A, Aggoun S, Cheikh-Zouaoui M, Chikh N, Duval E. Effect of some admixtures on the setting time and strength evolution of cement pastes at early ages. Constr Build Mater. 2008;22(2):106–10. https://doi.org/10.1016/j.conbuildmat.2006.05.043.
  • [22] Szwabowski J, Lazniewska-Piekrczyk B. Air-entrainment problem in self-compacting concrete. J Civ Eng Manag. 2009;15(2):137–47. https://doi.org/10.3846/1392-3730.2009.15.137-147.
  • [23] Khayat KH. Optimization and performance of air-entrained self-consolidating concrete. ACI Mater J. 2000;97(5):526–35.
  • [24] Huang F, Li H, Yi Z, Wang Z, Xie Y. The rheological properties of self-compacting concrete containing superplasticizer and air-entraining agent. Constr Build Mater. 2018;166:833–8. https://doi.org/10.1016/j.conbuildmat.2018.01.169.
  • [25] ACI 238 1R-08. Standard practice for selecting proportions for normal, heavyweight, and mass concrete. Farmington Hills: American Concrete Institute; 2002.
  • [26] Kim HK, Jeon JH, Lee HK. Workability, and mechanical, acoustic and thermal properties of lightweight aggregate concrete with a high volume of entrained air. Constr Build Mater. 2012;29:193–200. https://doi.org/10.1016/j.conbuildmat.2011.08.067.
  • [27] Sevim Ö, Demir İ. Physical and permeability properties of cementitious mortars having fly ash with optimized particle size distribution. Cem Concr Compos. 2019;96:266–73. https://doi.org/10.1016/j.cemconcomp.2018.11.017.
  • [28] Pease BJ. The role of shrinkage reducing admixtures on shrink-age, stress development, and cracking. West Lafayette, IN: Purdue University MSCE Thesis; 2005.
  • [29] Nmai C, Tomita R, Hondo F, Buffenbarger J. Shrinkage-reducing admixtures. Concr Int. 1998;20(4):31–7.
  • [30] He Z, Li ZJ, Chen MZ, Liang WQ. Properties of shrinkage-reducing admixture-modified pastes and mortar. Mater Struct. 2006;39(4):445–53. https://doi.org/10.1007/s11527-005-9004-9.
Uwagi
PL
Opracowanie rekordu ze środków MEiN, umowa nr SONP/SP/546092/2022 w ramach programu "Społeczna odpowiedzialność nauki" - moduł: Popularyzacja nauki i promocja sportu (2022-2023)
Typ dokumentu
Bibliografia
Identyfikator YADDA
bwmeta1.element.baztech-dd5742fa-4203-410a-95dd-75e5eee1246c
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