Effect of high temperature on the mechanical properties of basalt fibre self-compacting concrete as an overlay material

Haido, James H.; Tayeh, Bassam A.; Majeed, Samadar S.; Karpuzcu, Mehmet

doi:10.1016/j.conbuildmat.2020.121725

Cited by 70 publications

(15 citation statements)

References 33 publications

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“…Moreover, basalt fibers have shown remarkable resistance to elevated temperatures compared to other industrial fibers. Haido et al investigated the effect of basalt fibers on the workability of fresh self-compacting concrete [16], using J-ring flow and V-funnel flow. Experimental results showed that raising the temperature to 500 • C reduced the tensile and compressive strength of the self-compacting concrete by more than 20%.…”

Section: Introductionmentioning

confidence: 99%

Ultimate Compressive Strains and Reserves of Bearing Capacity of Short RC Columns with Basalt Fiber

et al. 2021

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Increasing the bearing capacity of reinforced concrete structures, reducing material consumption, and ensuring quality are critical in modern construction. The article presents an experimental study of the ultimate compressive strains of short fiber basalt reinforced concrete columns and provides recommendations for increasing the bearing capacity using steel reinforcement bars with greater strength. The columns were tested in an upright position using a hydraulic press. Strains were measured with dial indicators and a strain gauge station. It was shown that the addition of 10% coarse basalt fiber increased the ultimate compressibility of concrete on ordinary crushed stone by 19.8%, and expanded clay concrete by 26.1%, which led to the strain hardening of concrete under compression by 9.0% and 12%, respectively. Ultimate compressive strains in fiber-reinforced concrete short columns with combined reinforcement increased 1.42 times in columns on a lightweight aggregate and 1.19 times on heavy aggregate. An increase in the ultimate compressibility of concrete makes it possible to use steel reinforcement with greater strength in compressed elements as the concrete crushing during compression occurs primarily due to the reaching of critical values by tensile stresses in the transverse direction. This makes it possible to manufacture structures with a higher load-bearing capacity and less material consumption. A practical example of the application of the proposed approach is given.

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Section: Introductionmentioning

confidence: 99%

Ultimate Compressive Strains and Reserves of Bearing Capacity of Short RC Columns with Basalt Fiber

et al. 2021

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“…The modification effect of silane coupling agent KH550 (molecular formula C9H23O3NSi, 3-aminopropyltriethoxysilane, Guobang Chemical Co., Ltd. Jinan, China) is the best [ 30 ]. In this paper, KH550 was selected as the modifier for the surface treatment of BF, as showed in Figure 1 c. The performance indexes are presented in Table 4 .…”

Section: Raw Materialsmentioning

confidence: 99%

“…This numerical analysis was applied to BFRC beams with different fiber dosages and subjected to static loading at the whole range of applied load up to collapse. [ 29 , 30 ]. Basalt fiber is becoming more widely used in emulsified asphalt mixture [ 31 , 32 , 33 ].…”

Section: Introductionmentioning

confidence: 99%

Modification Mechanism and Rheological Properties of Emulsified Asphalt Evaporative Residues Reinforced by Coupling-Modified Fiber

Kong

et al. 2021

Materials

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In order to solve the problems of the smooth surface of basalt fiber and its weak interfacial adhesion with emulsified asphalt cold recycled mixture, a silane coupling agent (KH550) was used to treat the surface of basalt fiber and the effects of treatment concentration and soaking time on fiber modification were studied. The influence of silane coupling-modified basalt fiber (MBF) on the rheological properties of emulsified asphalt evaporation residue was studied at high and low temperatures using three routine index tests: a dynamic shear rheological test (DSR), a bending beam rheological test (BBR), and a force ductility test. The elemental changes of the fiber before and after modification and the microstructure of the emulsified asphalt evaporation residue with the coupling-modified fiber were analyzed by Fourier infrared spectroscopy (FT-IR), scanning electron microscopy (SEM), and X-ray energy dispersive spectroscopy (EDS), which is used to study the modification mechanism of emulsified asphalt evaporation residue reinforced by coupling-modified fiber. The results indicate that the concentration and soaking time of the silane coupling agent have a great influence on the surface morphology and mechanical properties of the fiber, and that the optimal treatment concentration is 1.0% and the optimal soaking time is 60 min. The addition of coupling-modified fibers can reduce the phase angle and unrecoverable creep compliance of emulsified asphalt evaporation residue, increase the rutting factor and creep recovery rate, and improve the elastic recovery ability and permanent deformation resistance. However, excessive fiber will weaken the ductility of emulsified asphalt at low temperatures. The appropriate content of silane coupling-modified fiber (MBF) is 1.5%. After silane coupling modification, the fiber surface becomes rough and cohesion is enhanced between the fiber and the emulsified asphalt base. Silane coupling-modified basalt fiber (MBF) acts as reinforcement for stability and bridging cracks.

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“…Basalt fiber is an environmentally friendly and nonhazardous bio-based material that has high tensile strength and high temperature resistance, so it has been widely used in various construction projects [25]. In 2021, Haido et al found that the splitting tensile strength of self-compacting concrete was increased by adding 0.25% of basalt fiber [26]. In 2020, Mohammadyan-Yasouj et al found that basalt fiber and alginate were effective at stopping the strength reduction in cement concrete under raised temperatures [27].…”

Section: Introductionmentioning

confidence: 99%

Study on Mechanical Properties of Basalt Fiber-Reinforced Concrete with High Content of Stone Powder at High Temperatures

Song

Liu

et al. 2021

Advances in Materials Science and Engineering

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Concrete materials are an important part of global structure, and their fire resistance directly affects the safety of buildings and tunnels. In this study, basalt fiber was used to reinforce concrete with high content of stone powder in order to enhance its high-temperature performance. The mechanical properties and ultrasonic characteristics at different temperatures were studied using the cube compressive strength test and nonlinear ultrasonic test. The results indicated that the addition of basalt fiber in specimens improved their compressive strength; however, this strength did not continuously increase with increases in the fiber length and fiber content, and the optimal values for fiber length and fiber content were determined to be 12 mm and 1 kg/m3 at 600°C, respectively. With increases in temperature, the unconfined compressive strength increased first and then decreased. When the temperature was 400°C, the unconfined compressive strength of the specimens reached their highest values and then decreased. When the temperature was 400°C and 600°C, the strength of the stone powder concrete with fiber was higher than that without fiber, which shows that fiber can improve the mechanical properties of concrete at high temperatures. Based on the Box-Behnken design (BBD) method, the unconfined compressive strength response regression model of basalt fiber-reinforced concrete with high content of stone powder, which follows parameters including fiber content, fiber length, and temperature at high-temperature environments, was established, and it was found that the interaction of fiber content, fiber length, and the temperature was significant based on multifactor interaction analysis. The analysis of ultrasonic signals based on the S transform showed that, with increases in temperature, the amplitudes of the acoustic response signals, the corresponding frequency spectrum, and the time-frequency spectrum were clearly reduced. At the same temperature, the amplitudes of the acoustic response signals of different concrete testing blocks did not change much and remained at the same level.

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Effect of high temperature on the mechanical properties of basalt fibre self-compacting concrete as an overlay material

Cited by 70 publications

References 33 publications

Ultimate Compressive Strains and Reserves of Bearing Capacity of Short RC Columns with Basalt Fiber

Ultimate Compressive Strains and Reserves of Bearing Capacity of Short RC Columns with Basalt Fiber

Modification Mechanism and Rheological Properties of Emulsified Asphalt Evaporative Residues Reinforced by Coupling-Modified Fiber

Study on Mechanical Properties of Basalt Fiber-Reinforced Concrete with High Content of Stone Powder at High Temperatures

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