scholarly journals Characteristics of Interfacial Shear Bonding Between Basalt Fiber and Mortar Matrix

Materials ◽  
2020 ◽  
Vol 13 (21) ◽  
pp. 5037
Author(s):  
Li Hong ◽  
Tadan Li ◽  
Yadi Chen ◽  
Peng Gao ◽  
Lizhi Sun
Keyword(s):  
Glass Fiber ◽  
Bonding Strength ◽  
Basalt Fiber ◽  
Interfacial Shear ◽  
Basalt Fibers ◽  
Pull Out ◽  
Comparison Results ◽  
Pva Fiber ◽  
Shear Bonding Strength ◽  
Mortar Matrix

Basalt fibers have been adopted as reinforcements to improve mechanical performance of concrete materials and structures due to their excellent corrosion resistance, affordable cost, and environmental-friendly nature. While the reinforcing efficiency is significantly dependent on fiber–matrix interfacial properties, there is a lack of studies focusing on the bonding behavior of basalt fibers in the mortar matrix. In this paper, a series of experiments were carried out to investigate the characteristics of single basalt fiber pulled out from the mortar matrix. Three embedment lengths and three types of mortar strength were considered. As references, the pull-out behavior of single polyvinyl alcohol (PVA) fiber and glass fiber in mortar matrix were also tested for comparison. Results from the pull-out test revealed that the average bonding strength is more effective than the equivalent shear bonding strength to illustrate the interfacial bond behavior of single basalt fiber in mortar matrix, which can be improved by either longer embedment length or the stronger mortar matrix. Finally, the tensile and compressive strengths of basalt/PVA/glass fiber-reinforced concrete (FRC) were measured to investigate the influence of interfacial shear bonding strengths. It was shown that, while PVA fiber developed the highest shear bonding strength with mortar, the basalt fiber exhibited the best reinforcing efficiency of FRC.

scholarly journals Grafting Carbon Nanotubes on Glass Fiber by Dip Coating Technique to Enhance Tensile and Interfacial Shear Strength

2015 ◽  
Vol 2015 ◽  
pp. 1-7 ◽  
Author(s):  
Bahador Dastorian Jamnani ◽  
Soraya Hosseini ◽  
Saeed Rahmanian ◽  
Suraya Abdul Rashid ◽  
Sa'ari b. Mustapha ◽  
...  
Keyword(s):  
Carbon Nanotubes ◽  
Glass Fiber ◽  
Interfacial Shear Stress ◽  
Interfacial Strength ◽  
Fiber Surface ◽  
Dip Coating ◽  
Interfacial Shear ◽  
Soaking Time ◽  
Pull Out ◽  
Two Parameters

The effects of noncovalent bonding and mechanical interlocking of carbon nanotubes (CNT) coating on tensile and interfacial strength of glass fiber were investigated. CNT were coated over glass fiber by a simple dip coating method. Acid treated CNT were suspended in isopropanol solution containing Nafion as binding agent. To achieve uniform distribution of CNT over the glass fiber, an optimized dispersion process was developed by two parameters: CNT concentration and soaking time. CNT concentration was varied from 0.4 to 2 mg/mL and soaking time was varied from 1 to 180 min. The provided micrographs demonstrated appropriate coating of CNT on glass fiber by use of CNT-Nafion mixture. The effects of CNT concentration and soaking time on coating layer were studied by performing single fiber tensile test and pull-out test. The obtained results showed that the optimum CNT concentration and soaking time were 1 mg/mL and 60 min, respectively, which led to significant improvement of tensile strength and interfacial shear stress. It was found that, at other concentrations and soaking times, CNT agglomeration or acutely curly tubes appeared over the fiber surface which caused a reduction of nanotubes interaction on the glass fiber.

Investigation of Basalt Fiber Reinforced Polyamide Composites

2008 ◽  
Vol 589 ◽  
pp. 7-12 ◽  
Author(s):  
Tamás Deák ◽  
Tibor Czigány
Keyword(s):  
Glass Fiber ◽  
Basalt Fiber ◽  
Dynamic Mechanical Properties ◽  
Fiber Reinforced Composites ◽  
Reinforced Composites ◽  
Fiber Reinforced ◽  
Basalt Fibers ◽  
Reinforced Composite ◽  
Glass Fiber Reinforced ◽  
Injection Molded

Basalt fiber reinforced polyamide composites were investigated to determine their static and dynamic mechanical properties. The composites were compounded in an extruder and were injection molded. A glass fiber reinforced composite also was investigated. Two different basalt fibers were used with silane sizing and one of them was used also without sizing. The results show that composites with silane sized basalt fibers have properties similar to glass fiber reinforced composites, while unsized basalt fibers eventuate smaller strength and higher brittleness.

Lightweight alternatives to glass fiber/epoxy sheet molding compound composites: A feasibility study

2018 ◽  
Vol 53 (14) ◽  
pp. 1985-2000
Author(s):  
Amir Asadi ◽  
Ferdinand Baaij ◽  
Robert J Moon ◽  
Tequila AL Harris ◽  
Kyriaki Kalaitzidou
Keyword(s):  
Glass Fiber ◽  
Cellulose Nanocrystals ◽  
Mechanical Performance ◽  
Fiber Type ◽  
Glass Fibers ◽  
Basalt Fiber ◽  
Basalt Fibers ◽  
Molding Compound ◽  
Sheet Molding Compound ◽  
Significant Difference

The focus of this study is to (i) understand the effect of the fiber type and content on the mechanical properties of sheet-molding compounds composites and (ii) investigate possible lightweight alternatives to glass fibers-sheet molding compound composites. Glass fiber and basalt fibers are used to make sheet-molding compound composites and the mechanical performance are determined as a function of the fiber type and content. In addition, cellulose nanocrystals are used to enhance the properties of the sheet-molding compound resin system. The possibility of lightweighting the basalt fiber/epoxy and glass fiber/epoxy sheet-molding compound composites is explored by replacing a portion of the fibers, i.e. 12–16 wt%, with a small amount cellulose nanocrystals, i.e. 1–2 wt%. No significant difference was found between the basalt fiber/epoxy and glass fiber/epoxy sheet-molding compound composites in terms of mechanical and impact properties. When cellulose nanocrystals were added to the composites, the properties of glass fiber/epoxy sheet-molding compound composites were enhanced while those of basalt fiber/epoxy sheet-molding compound composites deteriorated.

scholarly journals Improvement of Performance Profile of Acrylic Based Polyester Bio-Composites by Bast/Basalt Fibers Hybridization for Automotive Applications

2021 ◽  
Vol 5 (4) ◽  
pp. 100
Author(s):  
Anjum Saleem ◽  
Luisa Medina ◽  
Mikael Skrifvars
Keyword(s):  
Hybrid Composites ◽  
Flexural Modulus ◽  
Basalt Fiber ◽  
Fiber Composites ◽  
Fiber Reinforced ◽  
Basalt Fibers ◽  
Bast Fiber ◽  
Bast Fibers ◽  
Resin Impregnation ◽  
Structural Applications

New technologies in the automotive industry require lightweight, environment-friendly, and mechanically strong materials. Bast fibers such as kenaf, flax, and hemp reinforced polymers are frequently used composites in semi-structural applications in industry. However, the low mechanical properties of bast fibers limit the applications of these composites in structural applications. The work presented here aims to enhance the mechanical property profile of bast fiber reinforced acrylic-based polyester resin composites by hybridization with basalt fibers. The hybridization was studied in three resin forms, solution, dispersion, and a mixture of solution and dispersion resin forms. The composites were prepared by established processing methods such as carding, resin impregnation, and compression molding. The composites were characterized for their mechanical (tensile, flexural, and Charpy impact strength), thermal, and morphological properties. The mechanical performance of hybrid bast/basalt fiber composites was significantly improved compared to their respective bast fiber composites. For hybrid composites, the specific flexural modulus and strength were on an average about 21 and 19% higher, specific tensile modulus and strength about 31 and 16% higher, respectively, and the specific impact energy was 13% higher than bast fiber reinforced composites. The statistical significance of the results was analyzed using one-way analysis of variance.

Modeling and experimental study on the mechanical behavior of glass/basalt fiber metal laminates after thermal cycling

2021 ◽  
pp. 105678952199873
Author(s):  
Mehdi Abdollahi Azghan ◽  
F Bahari-Sambran ◽  
Reza Eslami-Farsani
Keyword(s):  
Thermal Cycling ◽  
Glass Fibers ◽  
Basalt Fiber ◽  
Tensile Modulus ◽  
Alloy Sheet ◽  
Experimental Results ◽  
Weibull Function ◽  
Basalt Fibers ◽  
Thermal Stabilities ◽  
Fiber Metal

In the present study, the effect of thermal cycling and stacking sequence on the tensile behavior of fiber metal laminate (FML) composites containing glass and basalt fibers was investigated. To fabricate the FML samples, fibers reinforced epoxy composite were sandwiched between two layers of 2024-T3 aluminum alloy sheet. 55 thermal cycles were implemented at a temperature range of 25–115°C for 6 min. The tensile tests were carried out after the thermal cycling procedure, and the results were compared with non-thermal cycling specimens. Scanning electron microscopy (SEM) was employed for the characterization of the damage mechanisms. The FMLs containing four basalt fibers’ layers showed higher values of tensile strength, modulus, and energy absorption. On the other hand, the lowest strength and fracture energy were found in the asymmetrically stacked sample containing basalt and glass fibers, due to weak adhesion between composite components (basalt and glass fibers). The lowest tensile modulus was found in the sample containing glass fibers that was due to the low modulus of the glass fibers compared to basalt fibers. In the case of the samples exposed to thermal cycling, the highest and the lowest thermal stabilities were observed in basalt fibers samples and asymmetrically stacked samples, respectively. In accordance with the experimental results, a non-linear damage model using the Weibull function and tensile modulus was employed to predict the stress-strain relationship. The simulated strain–strain curves presented an appropriate agreement with the experimental results.

scholarly journals Enhanced Interfacial Shear Strength and Critical Energy Release Rate in Single Glass Fiber-Crosslinked Polypropylene Model Microcomposites

Materials ◽  
2018 ◽  
Vol 11 (12) ◽  
pp. 2552 ◽  
Author(s):  
Uwe Gohs ◽  
Michael Mueller ◽  
Carsten Zschech ◽  
Serge Zhandarov
Keyword(s):  
Shear Strength ◽  
Electron Beam ◽  
Energy Release Rate ◽  
Glass Fiber ◽  
Release Rate ◽  
Interfacial Shear Strength ◽  
Glass Fibers ◽  
Critical Energy ◽  
Interfacial Shear ◽  
Critical Energy Release Rate

Continuous glass fiber-reinforced polypropylene composites produced by using hybrid yarns show reduced fiber-to-matrix adhesion in comparison to their thermosetting counterparts. Their consolidation involves no curing, and the chemical reactions are limited to the glass fiber surface, the silane coupling agent, and the maleic anhydride-grafted polypropylene. This paper investigates the impact of electron beam crosslinkable toughened polypropylene, alkylene-functionalized single glass fibers, and electron-induced grafting and crosslinking on the local interfacial shear strength and critical energy release rate in single glass fiber polypropylene model microcomposites. A systematic comparison of non-, amino-, alkyl-, and alkylene-functionalized single fibers in virgin, crosslinkable toughened and electron beam crosslinked toughened polypropylene was done in order to study their influence on the local interfacial strength parameters. In comparison to amino-functionalized single glass fibers in polypropylene/maleic anhydride-grafted polypropylene, an enhanced local interfacial shear strength (+20%) and critical energy release rate (+80%) were observed for alkylene-functionalized single glass fibers in electron beam crosslinked toughened polypropylene.

Applications and Advantages of Basalt Assembly in Construction Industry

2011 ◽  
Vol 332-334 ◽  
pp. 1937-1940 ◽  
Author(s):  
Wei Wei Hu ◽  
Hua Wu Liu ◽  
Dang Feng Zhao ◽  
Zong Bin Yang
Keyword(s):  
Construction Industry ◽  
High Performance ◽  
Inorganic Material ◽  
Basalt Fiber ◽  
Fiber Reinforced Polymer ◽  
Chemical Compositions ◽  
Basalt Fibers ◽  
Reinforced Polymer ◽  
Reinforcing Fibers ◽  
Reinforcement Material

Basalt fiber is a novel high-performance inorganic material, recently has been well received as a reinforcement in China. However, the applications in civil engineering have been rather limited. The chemical compositions, the characteristics of basalt fibers, and the typical products of basalt, including chopped yarn of basalt fiber, basalt fiber geo-textiles and basalt fiber reinforced polymer, were introduced．The advantages of basalt fibers as a reinforcement of concrete were explored in comparison with the commonly used reinforcing fibers, which indicates that basalt fiber is the most promising reinforcement material for concrete and will significantly benefit civil construction industries in the future.

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