Development of ultra-high performance engineered cementitious composites using polyethylene (PE) fibers

Yu, Ke; Yu, Junwei; Dai, Jian‐Guo; Lu, Zheng; Shah, Surendra P.

doi:10.1016/j.conbuildmat.2017.10.040

Cited by 423 publications

(101 citation statements)

References 33 publications

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“…In addition, NSHSC with 1.5 vol.% PE fibers exhibited high ductility along with high toughness indices; thus, the average midspan deflection was over 6 mm, which was about 2% of the specimen's span length. This is because the PE fibers induced a delay in localized cracking and ensured the formation of multiple cracks due to the increased energy absorption capacity [25]. Figure 4 shows the flexural load versus midspan deflection curve of hybrid fiber-reinforced NSHSC.…”

Section: Flexural Properties Of Specimens With Combined Fibersmentioning

confidence: 99%

Experimental Investigation on Mechanical Properties of Hybrid Steel and Polyethylene Fiber-Reinforced No-Slump High-Strength Concrete

Yuan

Lee

Min

et al. 2019

International Journal of Polymer Science

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This paper presents experimental investigations on the mechanical properties of no-slump high-strength concrete (NSHSC), such as the compressive and flexural strength. First, to determine the proper NSHSC mixtures, the compressive and flexural strength of three different water-to-binder ratios (w/b) of specimens with and without polyethylene (PE) fiber was tested at test ages. Then, the effect of hybrid combinations of PE fiber and steel fiber (SF) on the compressive strength, flexural strength, flexural toughness, and flexural energy dissipation capacity was experimentally investigated. Furthermore, the various hybrid fiber-reinforced NSHSCs were evaluated, and their synergy was calculated, after deriving the benefits from each of the individual fibers to exhibit a synergetic response. The test results indicate that a w/b of 16.8% with or without fibers had lower strength and flexural strength (toughness) than those of other mixtures (w/b of 16.4% and 17.2%). Specimens with a hybrid of SF and short PE fibers exhibited a higher compressive and flexural strength, flexural toughness, energy dissipation capacity, and fiber synergy in all considered instances.

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Section: Flexural Properties Of Specimens With Combined Fibersmentioning

confidence: 99%

Experimental Investigation on Mechanical Properties of Hybrid Steel and Polyethylene Fiber-Reinforced No-Slump High-Strength Concrete

Yuan

Lee

Min

et al. 2019

International Journal of Polymer Science

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“…Engineered cementitious composite (ECC) is a kind of designed composite material reinforced with random short fibers with a volume fraction less than 2% to 3%, which features tensile strain hardening and multiple cracking properties [31]. The ultimate tensile strain can be more than 3%, even up to 8%, which is 300 to 800 times higher than that of normal or ordinary fiber reinforced concrete [32][33][34][35][36]. Cracking is one of the main reasons for the performance deterioration of material and then the structure; however, concrete is low in tension and is prone to cracking.…”

Section: Introductionmentioning

confidence: 99%

Strengthening of RC Structures by Using Engineered Cementitious Composites: A Review

Shang

et al. 2019

Sustainability

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This paper presents a review of the recent work assessing the performance of building structures strengthened with engineered cementitious composite (ECC). ECC characterizes tensile strain hardening and multiple cracking properties, as well as strong interfacial bonding performance with substrate concrete, which makes it a promising retrofitting material. A lot of researches have been conducted on reinforced concrete (RC) structures, including beams, columns, beam–column joints, and fire-damaged slabs, strengthened with ECC material, and an extensive collection of valuable conclusions were obtained. These strengthening systems usually combine ECC with FRP textiles or steel bars to form a composite strengthening layer. The review demonstrates that ECC strengthening can greatly improve the performance of RC structures.

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“…Comprehensive methods can be employed to increase the bear capacity of reinforced concrete (RC) structures, such as structural retrofitting [1][2][3][4] and the use of high-performance materials [5][6][7][8][9][10][11][12][13][14][15]. Recently, a newly arising bolted side-plating (BSP) technique, i.e., attaching steel plates to the side faces of reinforced concrete (RC) beams using anchor bolts, has become increasingly popular all over the world [16][17][18][19].…”

Section: Introductionmentioning

confidence: 99%

Experimental Study on the Shear Performance of Reinforced Concrete Beams Strengthened with Bolted Side-Plating

Liu

Chen

et al. 2019

Sustainability

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To investigate the residual shear capacity of post-fire bolted side-plated (BSP) reinforced concrete (RC) beams with different depths of steel plate and types of anchor adhesive, i.e., magnesium oxychloride cement (MOC) and HIT-RE500, a control beam and five BSP beams were fabricated, of which two were exposed to fire in accordance with ISO834 temperature curve. Four-point bending shear tests were conducted to investigate the influence of elevated temperature on the failure mode, cracking load, shear capacity, stiffness, ductility and strain development, etc. The shear capacities of RC beams were found to be improved significantly by using the BSP technique. However, the stiffness of BSP beams was seriously degraded after exposed to fire, but the reduction in shear capacity was negligible, whereas the ductility and the strain of longitudinal reinforcement were obviously increased. Thus, the failure-mode was changed from shear failure to flexural failure. Regarding the adhesive mortar used for bolt anchorage, magnesium oxychloride cement (MOC) achieved higher shear capacity and better ductility but lower stiffness for BSP beams compared with HIT-RE500. Additionally, increasing the depth of bolted steel plates effectively improved the shear performance of BSP beams. In the tests, uneven relative slips were observed on the plate-RC interface due to the shear deformation of bolt shafts and the plates’ tensile principal stress perpendicular to the main diagonal crack, which proved the deformation lag of the bolted steel plates with respect to the RC beam. The outcomes of this study provide a better understanding on the shear performance of BSP beams at room temperatures and at fire conditions.

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Development of ultra-high performance engineered cementitious composites using polyethylene (PE) fibers

Cited by 423 publications

References 33 publications

Experimental Investigation on Mechanical Properties of Hybrid Steel and Polyethylene Fiber-Reinforced No-Slump High-Strength Concrete

Experimental Investigation on Mechanical Properties of Hybrid Steel and Polyethylene Fiber-Reinforced No-Slump High-Strength Concrete

Strengthening of RC Structures by Using Engineered Cementitious Composites: A Review

Experimental Study on the Shear Performance of Reinforced Concrete Beams Strengthened with Bolted Side-Plating

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