Longitudinal shear resistance of PVA-ECC composite slabs

Mohammed, Bashar S.; Aswin, Muhammad; Beatty, Walden Harry; Hafiz, Muhammad

doi:10.1016/j.istruc.2015.12.003

Cited by 31 publications

(11 citation statements)

References 11 publications

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“…This is important to avoid bleeding and segregation of fresh ECC and also to ensure optimum bonding with steel bars and honeycomb free of hardened ECC. As shown in Table 1, a mix proportion of SC-ECC has been selected and prepared in accordance with the requirements of ACI committee 211.2-98, while the mixing procedure is described by Mohammed et al [6]. To assess the fresh properties of the SC-ECC, four tests have been conducted: slump flow, 50 cm slump flow, Vfunnel, and L-box.…”

Section: Proportionsmentioning

confidence: 99%

“…The behavior of ECC structural elements has been investigated and elaborated [6,[24][25][26][27]. In this study, superiority of ECC can be proved compared to normal concrete such as behavior of ECC in direct tensile test and compression stressstrain test as shown in Figures 17 and 18, respectively.…”

Section: Ductility Class For R-sc-eccmentioning

confidence: 99%

“…Unlike HPFRCCs, ECC requires much lower fibers, not greater than 2% volume fraction of polymeric fibers for comparable mechanical properties. ECC has high tensile strength from 4 to 6 MPa [4] and large strain capacity between 3% and 5% [5] and also exhibits high ductility by optimizing the microstructure of the composite [6]. In addition, ECC has the ability to confine crack width up to an average of less than 60 microns up to failure [7].…”

Section: Introductionmentioning

confidence: 99%

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Structural Behavior of Reinforced Self-Compacted Engineered Cementitious Composite Beams

Mohammed

Nuruddin

Aswin

et al. 2016

Advances in Materials Science and Engineering

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Eight large-scale reinforced self-compacted engineered cementitious composite (R-SC-ECC) beams with different steel reinforcement ratios have been designed, prepared, cast, cured, and tested to failure at the age of 28 days. The experimental results have been compared with theoretical values predicted using EC2, RILEM, and VecTor2 models. Results show that failure modes in flexure and shear of R-SC-ECC beams are comparable to that of normal reinforced concrete beam. Nevertheless, contrary to VecTor2, models of EC2 and RILEM are not suitable for predicting reasonable ultimate moments for the beams, while results using VecTor2 model have successfully predicted the failure modes and load-deflection curves for all R-SC-ECC beams. It has been concluded that R-SC-ECC fall in the category of ductility class medium to high which gives advantages of using R-SC-ECC beams in regions susceptible to seismic activities.

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Section: Proportionsmentioning

confidence: 99%

Section: Ductility Class For R-sc-eccmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

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Structural Behavior of Reinforced Self-Compacted Engineered Cementitious Composite Beams

Mohammed

Nuruddin

Aswin

et al. 2016

Advances in Materials Science and Engineering

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“…By adjusting the mix proportions, the compressive strength of ECC ranges between 30 MPa and 80 MPa; the value of tensile strength ranges from 4 MPa to 6 MPa and compression strain 0.4% to 0.65% [3].Capitalizing on its improved properties such as high ductility and energy absorption, ECC has been recommended for structural applications [4]. Several researchers have applied ECC in structural components such as: link slab for bridge decks [2], high performance composite slabs with ECC as topping materials [4,5], reinforced ECC beams with higher ductility [6], ECC dapped-end area for reinforced concrete beams for bridge applications [7], jacketing retrofitting for RC members [1], ECC strips in tension cover zone of RC slabs [8], beam-column joint connections for less transverse reinforcement [9], reinforced ECC slabs [10], RC beams with ECC layers for fatigue enhancement [11], etc. Utilizing of nano-silica (NS) particles in making of concrete mixtures lead to reduction of cement content without compromising on quality of the concrete [12].…”

Section: Introductionmentioning

confidence: 99%

Evaluation of Nano-Silica Modified ECC Based on Ultrasonic Pulse Velocity and Rebound Hammer

Mohammed

Syed

Khed

et al. 2017

TOCIEJ

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Introdcution:Engineered cementitious composite (ECC) has gained attention among researchers due to its superior tensile properties. To improve its modulus elasticity, due to absence of coarse aggregate, nano-silica (NS) has been added to ECC mixture.Method:To facilitate the usage of the NS-ECC in the construction industry, using nondestructive tests such as rebound hammer (RH) and ultrasonic pulse velocity (UPV) to predict the compressive strength of NS-ECC is worthwhile. Twenty mixtures with two variables which are four PVA% (0.5, 1, 1.5 and 2) and five NS% (0, 1, 2, 3 and 4) have been proportioned, cast, cured and tested using RH, UPV and then crushed to determine the compressive strength at age of 28 days.Results and Conclusion:Response surface methodology (RSM) has been performed to develop models for predicting the compressive strength of NS-ECC utilizing results from RH and UPV. It has been established that the newly developed models are significant with values of “Prob > F” less than 0.05 and also have variance less than 0.2. Therefore, these models can be used to predict the compressive strength of NS-ECC using rebound hammer or/and ultra-pulse velocity.

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“…Lee et al [8] found that steel reinforcement in ECC could develop significantly higher bond strength than that in concrete. Mohammed et al [10] and Hossain et al [11] investigated the shear bond characteristics of composite slabs with profiled steel deck and ECC. However, no previous studies focussed on the evaluation of bond-slip behavior of ECC encased composite steel beam.…”

Section: Introductionmentioning

confidence: 99%

08.50: A study on the bond stress‐slip behavior between engineered cementitious composites and structural steel sections

2017

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The performance of traditional steel-concrete composite beams, which are commonly used in many building floor systems, could be further enhanced by introducing Engineered Cementitious Composites (ECC) as an additional composite component. The performance of such ECC-concrete-steel composite beams under high shear loading conditions will be significantly affected by the bond-slip behavior between ECC and structural steel section. When studying the bond slip behavior between ECC and structural steel, simple push test is an inexpensive and convenient method to investigate the complex interaction between ECC and steel. Such push test study is an important step toward understanding the bond behavior and evaluating the performance of these types of beams. In this context, this paper presents results from twelve specially designed push tests that aim to determine the bond characteristics between ECC and structural steel strips. The results of this study present the bond stress-slip behavior and failure modes under different cover thickness of ECC and the bond length specimens.

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Longitudinal shear resistance of PVA-ECC composite slabs

Cited by 31 publications

References 11 publications

Structural Behavior of Reinforced Self-Compacted Engineered Cementitious Composite Beams

Structural Behavior of Reinforced Self-Compacted Engineered Cementitious Composite Beams

Evaluation of Nano-Silica Modified ECC Based on Ultrasonic Pulse Velocity and Rebound Hammer

08.50: A study on the bond stress‐slip behavior between engineered cementitious composites and structural steel sections

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