Deformation behavior of high performance fiber reinforced cementitious composite prepared with asphalt emulsion

Abstract

A novel engineered cementitious composite (ECC) was prepared with the complex binder of Portland cement and asphalt emulsion. By adjusting the amount of asphalt emulsion, different mixture proportions were adopted in experiments, including four-point bending test, compressive test, and scanning electric microscopy (SEM). The SEM observation was conducted to evaluate the contribution of polyvinyl alcohol (PVA) fiber and asphalt emulsion to the composite toughening mechanism. The tests results show that the most remarkable deflection-hardening behavior and saturated multiple cracking are achieved when the content of asphalt emulsion is 10%. However, excessive content of asphalt emulsion causes severe damages on the deformation behavior as well as loss in compressive strength of the mixture. SEM observation indicates that the influence of asphalt emulsion on the fiber/matrix interfacial property changes the dominant fiber failure type from rupture into pull-out mode, and thus causes beneficial effects for strain-hardening behavior.

Keywords

toughness / deformation behavior / engineered cementitious composite / asphalt emulsion

References

[1] QianS Z, LiV C. Simplified inverse method for determining the tensile strain capacity of strain hardening cementitious composites [J]. Journal of Advanced Concrete Technology, 2007, 5(2): 235-246

[2] WangN, XuS-lang. Flexural response of reinforeed concrete beams strengthened with post-poured ultra high toughness cementitious composites layer [J]. Journal of Central South University of Technology, 2011, 18(3): 932-939

[3] LiV C, WuC, WangS, OgawaA, SaitoT. Interface tailoring for strain-hardening polyvinyl alcohol engineered cementitious composite (PVA-ECC) [J]. ACI Materials Journal, 2002, 99(5): 463-472

[4] LiH-d, XuS-l, LeungC K Y. Tensile and flexural properties of ultra high toughness cementitious composite [J]. Journal of Wuhan University of Technology (Materials Science), 2009, 24(4): 677-683

[5] ZhouJ, QianS Z, BeltranM G S, YeG, BreugelK, LiV C. Development of engineered cementitious composites with limestone powder and blast furnace slag [J]. Materials and Structures, 2009, 43(6): 803-814

[6] KeoleianG A, KendallA, DettlingJ E, SmithV M, ChandlerR F, LepechM D, LiV C. Life cycle modeling of concrete bridge design: Comparison of engineered cementitious composite link slabs and conventional steel expansion joints [J]. Journal of Infrastructure Systems, 2005, 11(1): 51-60

[7] KimJ K, KimJ S, HaG J, KimY Y. Tensile and fiber dispersion performance of ECC (engineered cementitious composites) produced with ground granulated blast furnace slag [J]. Cement and Concrete Research, 2007, 37: 1096-1105

[8] EsveldC. Recent development in slab track [J]. European Railway Review, 2003, 2: 81-85

[9] WangQ, YanP-y, RuhanA, YangJ-b, KongX-ming. Strength mechanism of cement-asphalt mortar [J]. Journal of Materials in Civil Engineering, 2011, 23(9): 1353-1359

[10] WangTaoResearch and application on CA mortar in ballastless slab track of high speed railway [D], 2008, Wuhan, School of Civil Engineering and Achitecture, Wuhan University of Technology: 18-75

[11] ŞahmaranM, LachemiM, HossainK M A, RanadeR, LiV C. Influence of aggregate type and size on ductility and mechanical properties of engineered cementitious composites [J]. ACI Materials Journal, 2009, 106(3): 308-316

[12] ASTM C1018-97. Standard test method for flexural toughness and first-crack strength of fiber-reinforced concrete [S].

[13] SukontasukkulP. Toughness evaluation of steel and polypropylene fibre reinforced concrete beams under bending [J]. Thammasat International Journal of Science and Technology, 2004, 9(3): 35-41

[14] CaiX-rongThe basic mechanical performance and strain hardening process theoretical analysis of ultra high toughness cementitious composites [D], 2009, Dalian, School of Civil Engineering, Dalian University of Technology: 48-91

[15] NaamanA E, ReinhardtH W. Characterization of high performance fiber reinforced cement composites-HPFRCC [C]. High Performance Fiber Reinforced Cement Composites 2 (HPFRCC 2), 1996, London, E&FN Spon: 1-24

[16] LiG, ZhaoY, PangS S, HuangW. Experimental study of cement-asphalt emulsion composite [J]. Cement and Concrete Research, 1998, 28(5): 635-641

[17] JinS-h, ChenX-f, YangJun. Key technologies of CA mortar for slab track [J]. China Railway Science, 2006, 27(2): 20-25

[18] KandaT, LiV C. Practical designcriteria for saturated pseudo strain hardening behavior in ECC [J]. Journal of Advanced Concrete Technology, 2006, 4(1): 59-72

[19] LiV C, LeungC K Y. Steady-state and multiple cracking of short random fiber composites [J]. Journal of Engineering Mechanics, 1992, 118(11): 2246-2264

[20] LiV C, WangS, WuC. Tensile Strain-hardening behavior of polyvinyl alcohol engineered cementitious composite (PVA-ECC) [J]. ACI Materials Journal, 2001, 98(6): 483-492

[21] RodgerS A, BrooksS A, SinclairW, GrovesG W, DoubleD D. High strength cement pastes [J]. Journal of Materials Science, 1985, 20: 2853-2860

[22] WangS, LiV C. Engineered cementitious composites with high-volume fly ash [J]. ACI Materials Journal, 2007, 104(3): 233-241

[23] FerraraL, ParkY D, ShahS P. Correlation among fresh state behavior, fiber dispersion, and toughness properties of SFRCs [J]. Journal of Materials in Civil Engineering, 2008, 20(7): 493-501