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The Relationship between Compressive Strength and Splitting Tensile Strength of high-Performance Fiber-Reinforced Cementitious Composites | ||
| Journal of Rehabilitation in Civil Engineering | ||
| مقاله 1، دوره 11، شماره 4 - شماره پیاپی 32، بهمن 2023، صفحه 1-21 اصل مقاله (2.16 M) | ||
| نوع مقاله: Regular Paper | ||
| شناسه دیجیتال (DOI): 10.22075/jrce.2022.27187.1667 | ||
| نویسندگان | ||
| Mahdieh Sabbaghian1؛ Ali Kheyroddin* 2 | ||
| 1Department of Civil and Environmental Engineering, Amir Kabir University of Technology, Tehran Polytechnic, Tehran, Iran | ||
| 2Distinguished Professor, Faculty of Civil Engineering, Semnan University, Semnan, Iran | ||
| تاریخ دریافت: 31 خرداد 1401، تاریخ بازنگری: 29 مرداد 1401، تاریخ پذیرش: 15 آذر 1401 | ||
| چکیده | ||
| The HPFRCC is defined by a stress-strain response in tension, which demonstrates multiple cracking and strain-hardening behavior. This experimental study aims to investigate the splitting tensile strength (STS), compressive strength (CS), and bulk density (BD) of HPFRCC. The CS of concrete should provide an accurate basis for the STS prediction. This study consists of two phases; in the first phase, 18 HPFRCC mix proportions with 1% steel fibers (30 mm length) were formulated by taking into account the various types of aggregate distribution, water-to-cement (w/c) ratio, amount of superplasticizer, and silica fume. After testing 108 cylinder and cube specimens at 7 and 28 days, a mathematical exponential function between STS and CS was proposed with a prediction error of less than ±15%. In the second phase, in order to evaluate the effect of steel fiber volume fraction and age on the prediction equation, three distinct volume fractions of steel fibers were considered: 0%, 1%, and 2%. At the ages of 7, 28, 56, and 90 days, 144 cube and cylinder specimens were tasted. The proposed equation for HPFRCC with 1% steel fiber can be applied to specimens containing 2% fiber with an error of ±20%. Adding fibers to the cementitious mortar had a small effect on the CS. However, at 28 days, the STS for HPFRCC with 1% and 2% fibers increased by 54% and 95%, respectively, compared to specimens without fibers. | ||
| کلیدواژهها | ||
| High-performance fiber-reinforced cement composite؛ HPFRCC؛ Compressive strength؛ Splitting tensile strength؛ Non-linear regression (NLR) | ||
| مراجع | ||
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[1] Němeček J, Kabele P, Bittnar Z. Nanoindentation based assessment of micro-mechanical properties of fiber reinforced cementitious composite. 6th Int RILEM Symp Fibre-Reinforced Concr (FRC 2004:401–10.
[2] Naaman AE. High performance fiber reinforced cement composites: classification and applications. CBM-CI Int Work Karachi, Pakistan 2009;1:389–401. https://doi.org/978-969-8620-06-6.
[3] Daneshvar K, Moradi MJ, Amooie M, Chen S, Mahdavi G, Hariri-Ardebili MA. Response of low-percentage FRC slabs under impact loading: Experimental, numerical, and soft computing methods. Structures 2020;27:975–88. https://doi.org/10.1016/J.ISTRUC.2020.06.005.
[4] Sabbaghian M, Kheyroddin A. Flexural strengthening of RC one way slabs with high-performance fiber-reinforced cementitious composite laminates using steel and GFRP bar. Eng Struct 2020;221:111106. https://doi.org/10.1016/J.ENGSTRUCT.2020.111106.
[5] Ghods A, Sharbatdar MK. An investigation on the behavior of two fixed end beams cast with HPFRCC composite. Case Stud Constr Mater 2020;13:e00466. https://doi.org/10.1016/J.CSCM.2020.E00466.
[6] Moolaei S, Sharbatdar MK, Kheyroddin A. Experimental evaluation of flexural behavior of HPFRCC beams reinforced with hybrid steel and GFRP bars. Compos Struct 2021;275:114503. https://doi.org/10.1016/J.COMPSTRUCT.2021.114503.
[7] Ehsani R, Sharbatdar MK, Kheyroddin A. Ductility and moment redistribution capacity of two-span RC beams. Mag Civ Eng 2019;90:104–18. https://doi.org/10.18720/MCE.90.10.
[8] Parsa E, Sharbatdar MK, Kheyroddin A. Investigation of the Flexural Behavior of RC Frames Strengthened with HPFRCC Subjected to Lateral Loads. Iran J Sci Technol Trans Civ Eng 2018 432 2018;43:231–40. https://doi.org/10.1007/S40996-018-0133-0.
[9] Sabbaghian M, Kheyroddin A. Effect of grading and superplasticizer content on mechanical properties of High-performance fiber reinforced cement composites (HPFRCC). 11th Natl. Congr. Civ. Eng. Shiraz Univ. Shiraz, Iran, 2019.
[10] Sabbaghian M, Kheyroddin A. Experimental Investigation of the Effect of Fiber on Mechanical and the Age Properties of High-Performance Fiber Reinforced Cement Composites. Concr Res Q J 2020;12:53–68. https://doi.org/10.22124/JCR.2019.11889.1321.
[11] Sabbaghian M, Kheyroddin A. Experimental investigation of shear behavior of one- way reinforced slabs with high-performance fiber- reinforced cementitious composite laminates. Amirkabir J Civ Eng 2022;53:919–22. https://doi.org/10.22060/CEEJ.2020.18138.6778.
[12] Sabbaghian M, Kheyroddin A. The relationship between compressive strength and splitting tensile strength of HPFRCC. 3rd Int. Conf. Civ. Eng. Archit. Urban Manag. Iran, 2020.
[13] Ramadoss P, Nagamani K. Tensile strength and durability characteristics of high-performance fiber reinforced concrete. Rabian J Sci Eng 2008;33:307–19.
[14] Yazıcı Ş, İnan G, Tabak V. Effect of aspect ratio and volume fraction of steel fiber on the mechanical properties of SFRC. Constr Build Mater 2007;21:1250–3. https://doi.org/10.1016/j.conbuildmat.2006.05.025.
[15] Shah SP, Ahmad SH. Structural properties of high-strength concrete and its implications for prestressed concrete. PCI J 1985;30:92-119.
[16] Nataraja, M., Dhang, N. & Gupta A. Splitting tensile strength of steel fiber-reinforced concrete. Indian Concr J 2001;75.
[17] Ramadoss P. Studies on high performance steel fiber reinforced concrete under static and impact loads. Anna univ, 2007.
[18] Xu BW, Shi HS. Correlations among mechanical properties of steel fiber reinforced concrete. Constr Build Mater 2009;23:3468–74. https://doi.org/10.1016/j.conbuildmat.2009.08.017.
[19] American Concrete Institute. State of the art report on high-strength concrete- ACI363R-1992. 2004.
[20] American Concrete Institute. Building code requirements for structural concrete and commentary-ACI318-1995 and ACI318R-1995. 2004.
[21] Raphael JM. tensile strength of concrete. J Am Concr Inst 1984;81:158–65.
[22] Nilson AH. Design implication of current research on high- strength concrete. Spec Publ 1985:85–118.
[23] Wafa, F. F., and Ashour SA. Mechanical properties of high- strength fiber reinforced concrete. ACI Mater J 1992;89:449–455.
[24] M.F.M. Zain, H.B. Mahmud, A. Ilham MF. Prediction of splitting tensile strength of high-performance concrete. Cem Concr Res 2002;32:1251–8.
[25] Perumal R. Correlation of compressive strength and other engineering properties of high-performance steel Fiber–Reinforced Concrete. J Mater Civ Eng 2015;27:04014114. https://doi.org/10.1061/(ASCE)MT.1943-5533.0001050.
[26] Gardner NJ, Sau PL, Cheung MS. Strength development and durability of concretes cast and cured at 0 C. Mater J 1988;85:529–36.
[27] ASTM C494/C494M. Standard Specification for Chemical Admixtures for Concrete 1. 2004.
[28] ASTM A820. Standard Specification for Steel Fibers for Fiber-Reinforced Concrete. West Conshohocken, PA, USA: 2011.
[29] ASTM C143-15. Standard test method for slump of hydraulic-cement concrete. West Conshohocken, PA, USA: 2015.
[30] ASTM C31/C31M. Standard Test Practice for Making and Curing Concrete Test Specimens in the Field. West Conshohocken, PA, USA: 2021.
[31] ASTM C33-93. Standard Specification for Concrete Aggregates. West Conshohocken, PA, USA: 2018.
[32] BS1881-108. Testing concrete- Part 108. Method for making test cubes from fresh concrete. 1993.
[33] ASTM C496/C496M. Standard test method for splitting tensile strength of cylindrical concrete specimens. West Conshohocken, PA, USA: 2004.
[34] Ramesh K, Seshu DR, Prabhakar M. Constitutive behaviour of confined fibre reinforced concrete under axial compression. Cem Concr Compos 2003;25:343–50. https://doi.org/10.1016/S0958-9465(02)00051-3.
[35] ACI 209.2R-08. Guide for Modeling and Calculating Shrinkage and Creep in Hardened Concrete. 2008. | ||
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