Abstract: Slurry-infiltrated fiber concrete (SIFCON) is a sort of strain hardening cement-based composite material, typically made with 5%–20% steel fibers. This study focused on a novel type of SIFCON in which hooked-end steel fibers were replaced by arc-shaped steel fibers. The quasi-static compressive properties of the SIFCON were first measured. Test results suggested that using arc-shaped steel fibers in lieu of hooked-end steel fibers increased the quasi-static compressive strength by 47.1% and the strain at peak stress by 56.3%. We attribute these improvements to new crack-resisting mechanisms, namely “fiber cross-lock”, “dual bridging”, and “confinement loops”, when the arc-shaped steel fibers are introduced into SIFCON. As high impact resistance is a special property of SIFCON that is of practical significance, the dynamic compressive properties of arc-shaped steel fiber SIFCON were studied by using an 80-mm-diameter split Hopkinson pressure bar (SHPB). The results showed that the dynamic compressive strength, dynamic increase factor (DIF), and dynamic toughness of SIFCON all increased with the strain rate. The SIFCON incorporating arc-shaped steel fibers proved to have significant advantages in structural applications requiring high impact resistance.

新型弧形钢纤维渗浇纤维混凝土的压缩性能研究

[1]AbiramiT, LoganaganandanM, MuraliG, et al., 2019. Experimental research on impact response of novel steel fibrous concretes under falling mass impact. Construction and Building Materials, 222:447-457.

[2]BischoffPH, PerrySH, 1991. Compressive behaviour of concrete at high strain rates. Materials and Structures, 24(6):425-450.

[3]ChuSH, 2019. Effect of paste volume on fresh and hardened properties of concrete. Construction and Building Materials, 218:284-294.

[4]ChuSH, 2021. Development of infilled cementitious composites (ICC). Composite Structures, 267:113885.

[5]ChunPJ, LeeSH, ChoSH, et al., 2013. Experimental study on blast resistance of sifcon. Journal of Advanced Concrete Technology, 11(4):144-150.

[6]DrdlováM, ŘídkýR, ČechmánekR, 2016. Influence of fibre type and fibre volume fraction on dynamic properties of slurry infiltrated fibre concrete. Materials Science Forum, 865:135-140.

[7]DrdlováM, BiboraP, ČechmánekR, 2018a. Blast resistance of slurry infiltrated fibre concrete with hybrid fibre reinforcement. IOP Conference Series: Materials Science and Engineering, 379:012024.

[8]DrdlováM, SvitákO, BiboraP, et al., 2018b. Blast resistance of slurry infiltrated fibre concrete with waste steel fibres from tires. MATEC Web of Conferences, 149:01060.

[9]ElavarasiD, Saravana Raja MohanK, 2018. On low-velocity impact response of SIFCON slabs under drop hammer impact loading. Construction and Building Materials, 160:127-135.

[10]ElnonoMA, SalemHM, FarahatAM, et al., 2009. Use of slurry infiltrated fiber concrete in reinforced concrete corner connections subjected to opening moments. Journal of Advanced Concrete Technology, 7(1):51-59.

[11]Fib Model Code 2010, 2013. Fib Model Code for Concrete Structures 2010. Ernst & Sohn, a Wiley Brand, Lausanne, Switzerland.

[12]GopalaratnamVS, ShahSP, BatsonG, et al., 1991. Fracture toughness of fiber reinforced concrete. Materials Journal, 88(4):339-353.

[13]GulkanP, KorucuH, 2011. High-velocity impact of large caliber tungsten projectiles on ordinary Portland and calcium aluminate cement based HPSFRC and SIFCON slabs‍–‍part II: numerical simulation and validation. Structural Engineering and Mechanics, 40(5):617-636.

[14]HaoY, HaoH, 2013. Dynamic compressive behaviour of spiral steel fibre reinforced concrete in split Hopkinson pressure bar tests. Construction and Building Materials, 48:521-532.

[15]HomrichJR, NaamanAE, 1987. Stress-Strain Properties of Sifcon in Compression. American Concrete Institute, p.283-304.

[16]HuangHH, GaoXJ, KhayatKH, 2021. Contribution of fiber orientation to enhancing dynamic properties of UHPC under impact loading. Cement and Concrete Composites, 121:104108.

[17]IpekM, AksuM, 2019. The effect of different types of fiber on flexure strength and fracture toughness in SIFCON. Construction and Building Materials, 214:207-218.

[18]KarDRL, 1984. Properties, applications: slurry infiltrated fiber concrete (SIFCON). Concrete International, 6(12):44-47.

[19]KhameesSS, KadhumMM, AlwashNA, 2020. Effects of steel fibers geometry on the mechanical properties of SIFCON concrete. Civil Engineering Journal, 6(1):21-33.

[20]KimJJ, YooDY, BanthiaN, 2021. Benefits of curvilinear straight steel fibers on the rate-dependent pullout resistance of ultra-high-performance concrete. Cement and Concrete Composites, 118:103965.

[21]KimS, HanS, ParkC, et al., 2020. Compressive behavior characteristics of high-performance slurry-infiltrated fiber-reinforced cementitious composites (SIFRCCs) under uniaxial compressive stress. Materials, 13(1):159.

[22]KimSK, ChoiJH, 2006. Compressive and tensile strength properties of slurry infiltrated fiber concrete. Journal of the Korea Concrete Institute, 18(5):703-708.

[23]KoliasS, GeorgiouC, 2005. The effect of paste volume and of water content on the strength and water absorption of concrete. Cement and Concrete Composites, 27(2):211-216.

[24]KolskyH, 1949. An investigation of the mechanical properties of materials at very high rates of loading. Proceedings of the Physical Society. Section B, 62(11):676-700.

[25]KongYK, KurumisawaK, ChuSH, 2022. Infilled cementitious composites (ICC)‍–a comparative life cycle assessment with UHPC. Journal of Cleaner Production, 377:134051.

[26]KorucuH, GulkanP, 2011. High-velocity impact of large caliber tungsten projectiles on ordinary Portland and calcium aluminate cement based HPSFRC and SIFCON slabs‍–‍part I: experimental investigations. Structural Engineering and Mechanics, 40(5):595-616.

[27]LaiJZ, SunW, 2009. Dynamic behaviour and visco-elastic damage model of ultra-high performance cementitious composite. Cement and Concrete Research, 39(11):‍1044-1051.

[28]LankardDR, 1984. Slurry infiltrated fiber concrete (SIFCON): properties and applications. MRS Online Proceedings Library, 42(1):277-286.

[29]LankardDR, 1985. Preparation, properties and applications of concrete-based composites containing 5% to 20% steel fiber. Steel Fiber Concrete, US-Sweden Joint Seminar, p.199-217.

[30]LiQH, ZhaoX, XuSL, et al., 2016. Influence of steel fiber on dynamic compressive behavior of hybrid fiber ultra high toughness cementitious composites at different strain rates. Construction and Building Materials, 125:490-500.

[31]LiaoL, ZhaoJ, ZhangF, et al., 2020. Experimental study on compressive properties of SFRC under high strain rate with different fiber content and aspect ratio. Construction and Building Materials, 261:119906.

[32]ManoliaAA, ShakirAS, QaisJF, 2018. The effect of fiber and mortar type on the freezing and thawing resistance of slurry infiltrated fiber concrete (SIFCON). IOP Conference Series: Materials Science and Engineering, 454:012142.

[33]MorishimaS, YamaguchiM, ShibuyaS, et al., 2020. Effects of fiber type on blast resistance of slurry-infiltrated fiber concrete under contact detonation. Journal of Advanced Concrete Technology, 18(4):157-167.

[34]NaamanAE, OtterD, NajmH, 1992. Elastic modulus of SIFCON in tension and compression. Materials Journal, 88(6):603-613.

[35]NajiHF, HusseinMJ, FarsangiEN, 2021. Mechanical properties of SIFCON with variation steel fiber ratio and nano kaolin. Journal of Mechanical Engineering Research and Developments, 44(2):363-370.

[36]OgawaK, 1984. Impact-tension compression test by using a split-Hopkinson bar. Experimental Mechanics, 24(2):‍81-86.

[37]PerssonPA, HolmbergR, LeeJ, 1993. Rock Blasting and Explosives Engineering. CRC Press, Boca Raton, USA, p.560.

[38]PiastaW, ZarzyckiB, 2017. The effect of cement paste volume and w/c ratio on shrinkage strain, water absorption and compressive strength of high performance concrete. Construction and Building Materials, 140:395-402.

[39]RaoHS, GhorpadeVG, RamanaNV, et al., 2010. Response of SIFCON two-way slabs under impact loading. International Journal of Impact Engineering, 37(4):452-458.

[40]ReinhardtHW, NaamanAE, 1992. International workshop—high performance fibre reinforced cement composites. Materials and Structures, 25(1):60-62.

[41]RenGM, WuH, FangQ, et al., 2018. Effects of steel fiber content and type on dynamic compressive mechanical properties of UHPCC. Construction and Building Materials, 164:29-43.

[42]RenukaJ, RajasekharK, 2021. Performance of slurry infiltrated fibrous concrete–a comprehensive review. Journal of Engineering Science and Technology Review, 14(5):‍163-172.

[43]RossCA, ThompsonPY, TedescoJW, 1989. Split-Hopkinson pressure-bar tests on concrete and mortar in tension and compression. Materials Journal, 86(5):475-481.

[44]SchneiderB, 1992. Development of SIFCON through applications. In: Reinhardt HW, Naaman AE (Eds.), High Performance Fiber Reinforced Cement Composites. RILEM, p.177-194.

[45]ShiXJ, ParkP, RewY, et al., 2020. Constitutive behaviors of steel fiber reinforced concrete under uniaxial compression and tension. Construction and Building Materials, 233:117316.

[46]SoyluN, BingölAF, 2019. Research on effect of the quantity and aspect ratio of steel fibers on compressive and flexural strength of sifcon. Challenge Journal of Structural Mechanics, 5(1):29-34.

[47]SuHY, XuJY, RenWB, 2014. Mechanical properties of ceramic fiber-reinforced concrete under quasi-static and dynamic compression. Materials & Design, 57:426-434.

[48]SunXW, ZhaoK, LiYC, et al., 2018. A study of strain-rate effect and fiber reinforcement effect on dynamic behavior of steel fiber-reinforced concrete. Construction and Building Materials, 158:657-669.

[49]TuyanM, YazıcıH, 2012. Pull-out behavior of single steel fiber from SIFCON matrix. Construction and Building Materials, 35:571-577.

[50]U.S. Army Corps of Engineers NFEC, Air Force Civil Engineer Support Agency, 2008. Structures to Resist the Effects of Accidental Explosions. UFC 3-340-02, Department of Defense, USA.

[51]WangSS, ZhangMH, QuekST, 2011. Effect of high strain rate loading on compressive behaviour of fibre-reinforced high-strength concrete. Magazine of Concrete Research, 63(11):813-827.

[52]WangZL, ShiZM, WangJG, 2011. On the strength and toughness properties of SFRC under static-dynamic compression. Composites Part B: Engineering, 42(5):‍1285-1290.

[53]WonJP, LeeJH, LeeSJ, 2015a. Bonding behaviour of arch-type steel fibres in a cementitious composite. Composite Structures, 133:117-123.

[54]WonJP, LeeJH, LeeSJ, 2015b. Flexural behaviour of arch-type steel fibre reinforced cementitious composites. Composite Structures, 134:565-571.

[55]WuZM, KhayatKH, ShiCJ, 2018. How do fiber shape and matrix composition affect fiber pullout behavior and flexural properties of UHPC? Cement and Concrete Composites, 90:193-201.

[56]YuQL, ZhuangWT, ShiCJ, 2021. Research progress on the dynamic compressive properties of ultra-high performance concrete under high strain rates. Cement and Concrete Composites, 124:104258.