Exploring the brittleness and fractal characteristics of basalt fiber reinforced concrete under impact load based on the principle of energy dissipation

Geng, Kaiqiang; Jaturapitakkul, Chai; Qin, Yuan; Li, Xiaoli; Duan, Minghan; Da, Liu

doi:10.1617/s11527-022-01891-2

Cited by 23 publications

(13 citation statements)

References 45 publications

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“…At this time, the slope of the stress–strain curve gradually reduced. When the stress reached the peak point, the specimen cracked and was damaged; the stress–strain curve started to drop, and the specimen showed strain-softening behavior [ 18 ].…”

Section: Test Results and Discussionmentioning

confidence: 99%

Dynamic Compression Mechanical Properties of Polyoxymethylene-Fiber-Reinforced Concrete

Guo

Yan

et al. 2022

Materials

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The excellent overall performance of polyoxymethylene (POM) fiber enables it to show great potential for engineering applications. The effect of POM fibers on the dynamic compression mechanical properties of concrete is an important issue for its application in engineering structures such as airport pavement and bridges. It is necessary to investigate the dynamic compressive mechanical properties of POM-fiber-reinforced concrete (PFRC) under impact loading. The PFRC specimens with various POM fiber lengths (6, 8, 12, 16, and 24 mm) and ordinary-performance concrete (OPC) specimens were tested by utilizing the split Hopkinson pressure bar (SHPB). We studied the effect of fiber length and strain rate on the dynamic compression mechanical properties of PFRC and established a damage dynamic constitutive model for PFRC. The results indicate that the dynamic compressive strength, peak strain, ultimate strain, dynamic peak toughness, dynamic ultimate toughness, and dynamic increase factor (DIF) of the PFRC increased obviously with the increase in strain rate. POM fiber was found to be able to effectively improve the deformation ability and impact toughness of concrete. The dynamic compressive strength and impact toughness of PFRC with a fiber length of 8 mm was optimal at different strain rates. The POM fibers with 16 mm and 24 mm lengths negatively affected the dynamic compressive strength of the concrete. The fiber length variation had an insignificant effect on the DIF of PFRC. The established damage dynamic constitutive model for PFRC was fitted and analyzed, and it was found that the model is able to describe the dynamic characteristics of PFRC well. This study can extend POM fibers to engineering structures that may be subjected to impact loading and act as a reference for the design of PFRC under impact loading.

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Section: Test Results and Discussionmentioning

confidence: 99%

Dynamic Compression Mechanical Properties of Polyoxymethylene-Fiber-Reinforced Concrete

Guo

Yan

et al. 2022

Materials

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“…Available commercial reinforcements are divided into many groups and have characteristics that make them appropriate for certain purposes. Steel fibre (Iqbal et al, 2019), polypropylene fibre (Hussain et al, 2020), carbon fibre (Nassiri et al, 2021), glass fibre (Peled et al, 2005), carbon nanotubes (Hawreen et al, 2019), basalt fibre (Geng et al, 2022), organic fibres (Ahmad et al, 2020), and other materials are examples. When it refers to the mechanical behaviour of concrete, SF is, by far, the best fibre when compared to other industrial fibres.…”

Section: Introductionmentioning

confidence: 99%

Effect of thermal cycles on the engineering properties and durability of sustainable fibrous high-strength concrete

Hakeem

Hosen²,

Alyami³

et al. 2023

Front. Mater.

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In this research, the effect of heat–cool cycles (HCCs) on high-strength concrete (HSC) containing steel fibres (SFs), polypropylene fibres (PPFs), and date palm fibres (DPFs), which were named fibrous high-strength concrete (FHSC), was studied. To produce FHSC, three doses of 0.2, 0.6, and 1 percent of each fibre were used. All samples were tested after 28 days of normal water curing and 270 days of exposure to HCCs (continuing the authors’ project and research published at 28 and 180 days). This entails heating for 2 days at 60 C in the oven and cooling for another 2 days at room temperature for 270 days. The experiment’s findings revealed that fibre reinforcement in concrete enhances its strength and durability. By incorporating the three types of fibres into high-strength concrete, with and without HCCs, the modulus of rupture was significantly increased. In both conditions, including with or without the implementation of HCCs, incorporating the three fibre types into the HSC showed a significant increase in toughness. As a result, natural date palm fibres can produce sustainable FHSC that can withstand harsh environmental conditions. Moreover, compared to the previous study conducted by the authors at 180 days, there is a slight severity in both the pattern of decrease and increase of the studied characteristics at 270 days caused by the effect of thermal cycles and fibres.

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“…The higher the impact rate, the more energy absorbed by the concrete. The incorporation of basalt fiber changed the internal pore structure of concrete, so that the total absorption energy and dissipation energy of concrete (BFRC) was greater, but the effective energy was relatively small [13][14]. On the other hand, when the amount of 1.5 kg/m 3 , the impact work and impact resistance toughness ratio is the largest, fiber impact resistance to concrete depends on the friction between fiber and cement base, and the destruction of fiber concrete is due to the reduction of anchorage between fiber and cement foundation, and fiber and cement base material interface area cement damage [15].…”

Section: Introductionmentioning

confidence: 99%

Impact Test of Ultra-High Performance Concrete Slab with Basalt Fiber

Wang

Zhu

et al. 2023

J. Phys.: Conf. Ser.

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In order to study the impact resistance performance of ultra-high performance concrete (UHPC) slab with basalt fiber, the experiment of six concrete slabs was conducted. The following factors were considered in this study: different basalt fiber types, steel mesh, and water-based epoxy mixture. The drop weight method was used, and the effect of various factors on the impact resistance performance of ultra-high performance concrete slab with basalt fiber were investigated in details. The test results showed that the basalt fiber could significantly increase the impact resistance of UHPC slab. The basalt fiber with a long length after cracking was more significant to improve the impact resistance performance of UHPC slab. The basalt fiber, steel mesh, and water-based epoxy can significantly improve the impact resistance and energy absorption capacity of UHPC slab. The ductility coefficient of UHPC slabs are less than 0.6.

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Exploring the brittleness and fractal characteristics of basalt fiber reinforced concrete under impact load based on the principle of energy dissipation

Cited by 23 publications

References 45 publications

Dynamic Compression Mechanical Properties of Polyoxymethylene-Fiber-Reinforced Concrete

Dynamic Compression Mechanical Properties of Polyoxymethylene-Fiber-Reinforced Concrete

Effect of thermal cycles on the engineering properties and durability of sustainable fibrous high-strength concrete

Impact Test of Ultra-High Performance Concrete Slab with Basalt Fiber

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