scholarly journals Use of Basalt Fiber-Reinforced Tailings for Improving the Stability of Tailings Dam

Materials ◽  
2019 ◽  
Vol 12 (8) ◽  
pp. 1306 ◽  
Author(s):  
Binbin Zheng ◽  
Dongming Zhang ◽  
Weisha Liu ◽  
Yonghao Yang ◽  
Han Yang
Keyword(s):  
Mechanical Properties ◽  
Particle Size ◽  
Fiber Length ◽  
Basalt Fiber ◽  
Confining Pressure ◽  
Dry Density ◽  
Tailings Dam ◽  
Fiber Reinforced ◽  
Tailings Dams ◽  
The Stability

As one of the largest artificial geotechnical structures on earth, the tailings dams are classified as one of the high-risk sources in China’s industry. How to improve the stability and safety of tailings dams remains a challenge for mine operators currently. In this paper, an innovative method is presented for improving the stability of tailings dams, in which the basalt fiber is used to reinforce tailings. The mechanical properties of tailings used for dam-construction have a great influence on the stability of tailings dam. In order to investigate the mechanical performance of basalt fiber-reinforced tailings (BFRT), a series of laboratory triaxial tests were conducted. The effects of five parameters (fiber length, fiber content, particle size, dry density and confining pressure) on the mechanical properties of BFRT were studied. The microstructure and the behavior of interfaces between basalt fibers and tailings particles were analyzed by using scanning electron microscopy (SEM). The triaxial experimental test results show that the mechanical properties of BFRT increase with the increases of fiber length and content, particle size, dry density and confining pressure. The SEM results indicate that the interfacial interaction between fibers and tailings particles is mainly affected by particle shape.

Hybridization effect on mechanical properties of short basalt/jute fiber-reinforced polyester composites

2013 ◽  
Vol 20 (4) ◽  
pp. 343-350 ◽  
Author(s):  
Pandian Amuthakkannan ◽  
Vairavan Manikandan ◽  
Jebbas Thangaiah Winowlin Jappes ◽  
Marimuthu Uthayakumar
Keyword(s):  
Mechanical Properties ◽  
Impact Strength ◽  
Hybrid Composites ◽  
Fiber Composite ◽  
Testing Machine ◽  
Basalt Fiber ◽  
Jute Fiber ◽  
Computer Assisted ◽  
Fiber Reinforced ◽  
Polyester Composites

AbstractMechanical properties of fiber reinforcement that can be obtained by the introduction of basalt fibers in jute fiber-reinforced polyester composites have been analyzed experimentally. Basalt/jute fiber-reinforced hybrid polymer composites were fabricated with a varying fiber percentage by using compression molding techniques. The fabricated composite plates were subjected to mechanical testing to estimate tensile strength, flexural strength and impact strength of the composites. The effect of fiber content on basalt/jute fiber in the composites has been studied. Addition of jute fiber into basalt fiber composite makes it a cost-effective one. Incorporation of basalt fiber into the composites was at approximately 10%, 20%, up to 90%, and the jute fiber percentage was reduced from 90%, 80%, to 10% correspondingly. Mechanical properties were investigated as per ASTM standards. Tensile and flexural strengths were tested by using a computer-assisted universal testing machine, and impact strength by using an Izod impact tester. It has been observed that the addition of jute fiber to the basalt fiber polyester composites enhanced the mechanical properties. Water absorption of hybrid composites was also analyzed and was found to be proportional to fiber percentage.

Mechanical properties of basalt fiber reinforced magnesium phosphate cement composites

2018 ◽  
Vol 188 ◽  
pp. 946-955 ◽  
Author(s):  
Jihui Qin ◽  
Jueshi Qian ◽  
Zhen Li ◽  
Chao You ◽  
Xiaobing Dai ◽  
...  
Keyword(s):  
Mechanical Properties ◽  
Basalt Fiber ◽  
Magnesium Phosphate ◽  
Cement Composites ◽  
Fiber Reinforced

Influences of fiber length and water film thickness on fresh properties of basalt fiber-reinforced mortar

2021 ◽  
Vol 22 (5) ◽  
pp. 344-356
Author(s):  
Leo Gu Li ◽  
Yi Ouyang ◽  
Pui-Lam Ng ◽  
Kai-long Zeng ◽  
Albert Kwok Hung Kwan
Keyword(s):  
Film Thickness ◽  
Fiber Length ◽  
Basalt Fiber ◽  
Water Film ◽  
Fiber Reinforced ◽  
Fresh Properties ◽  
Water Film Thickness

Experimental study on effect of fiber length and fiber content on tensile and flexural properties of bamboo fiber/epoxy composite

2019 ◽  
Vol 15 (5) ◽  
pp. 947-957 ◽  
Author(s):  
Giridharan R. ◽  
Raatan V.S. ◽  
Jenarthanan M.P.
Keyword(s):  
Mechanical Properties ◽  
Fiber Length ◽  
Epoxy Composite ◽  
Natural Fibers ◽  
Weight Ratio ◽  
Fiber Content ◽  
Bamboo Fiber ◽  
Flexural Properties ◽  
Fiber Reinforced ◽  
Content Type

Purpose The purpose of this paper is to study the effects of fiber length and content on properties of E-glass and bamboo fiber reinforced epoxy resin matrices. Experiments are carried out as per ASTM standards to find the mechanical properties. Further, fractured surface of the specimen is subjected to morphological study. Design/methodology/approach Composite samples were prepared according to ASTM standards and were subjected to tensile and flexural loads. The fractured surfaces of the specimens were examined directly under scanning electron microscope. Findings From the experiment, it was found that the main factors that influence the properties of composite are fiber length and content. The optimum fiber length and weight ratio are 15 mm and 16 percent, respectively, for bamboo fiber/epoxy composite. Hence, the prediction of optimum fiber length and content becomes important, so that composite can be prepared with best mechanical properties. The investigation revealed the suitability of bamboo fiber as an effective reinforcement in epoxy matrix. Practical implications As bamboo fibers are biodegradable, recyclable, light weight and so on, their applications are numerous. They are widely used in automotive components, aerospace parts, sporting goods and building industry. With this scenario, the obtained result of bamboo fiber reinforced composites is not ignorable and could be of potential use, since it leads to harnessing of available natural fibers and their composites rather than synthetic fibers. Originality/value This work enlists the effect of fiber length and fiber content on tensile and flexural properties of bamboo fiber/epoxy composite, which has not been attempted so far.

scholarly journals Evaluation of the Effect of Fiber Type, Length, and Content on Asphalt Properties and Asphalt Mixture Performance

Materials ◽  
2020 ◽  
Vol 13 (7) ◽  
pp. 1556 ◽  
Author(s):  
Fucheng Guo ◽  
Rui Li ◽  
Shuhua Lu ◽  
Yanqiu Bi ◽  
Haiqi He
Keyword(s):  
Fiber Length ◽  
Fiber Type ◽  
Asphalt Binder ◽  
Asphalt Mixture ◽  
Basalt Fiber ◽  
Temperature Stability ◽  
Fiber Content ◽  
Engineering Properties ◽  
Fiber Reinforced ◽  
High Temperature Stability

Fiber-reinforced asphalt mixture has been widely used in pavement engineering to not only prevent asphalt binder leakage but also improve engineering properties of asphalt mixture. However, the research on three key parameters, namely fiber type, fiber length, and fiber content, which significantly affect the performance of fiber-reinforced asphalt mixture, have seldom been conducted systematically. To determine these three key parameters in the support of the application of fibers in mixture scientifically, three commonly used fibers were selected, basalt fiber, polyester fiber, and lignin fiber, and the testing on fibers, fiber-reinforced asphalt binders, and fiber-reinforced asphalt mixtures was conducted afterwards. The results showed: the favorable fiber type was basalt fiber; the favorable basalt fiber length was 6mm; the engineering properties including high temperature stability, low temperature crack resistance, and water susceptibility were clearly improved by the added basalt fiber, and the optimum basalt fiber content was 0.4 wt.%. The obtained results may be valuable from a practical point of view to engineers and practitioners.

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