Influence of basalt fiber on physical and mechanical properties of treated recycled aggregate concrete

Dilbas, Hasan; Çakır, Özgür

doi:10.1016/j.conbuildmat.2020.119216

Cited by 98 publications

(46 citation statements)

References 35 publications

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“…It can be seen from the above that the mechanical properties of recycled aggregate concrete are generally not as good as ordinary concrete due to its low strength. After adding basalt fiber into recycled concrete, the Advances in Civil Engineering mechanical properties of recycled concrete are reinforced by basalt fiber, especially the tensile strength of concrete, due to the bridging and strengthening effect of fiber in concrete, which is consistent with the research conclusion of literature [18][19][20][21][22][23][24][25][26][27][28][29][30][31][32].…”

Section: Summary Of Sectionsupporting

confidence: 81%

“…At present, some achievements have been gotten about the application of basalt fiber in ordinary concrete, but the research seems very inadequate for recycled concrete. Basalt fiber can improve the microstructure of recycled concrete and improve the compressive strength and tensile strength of recycled concrete [23][24][25][26]. e results of orthogonal test show that the content of basalt fiber and the replacement rate of recycled aggregate have important influence on the strength of recycled concrete [27,28].…”

Section: Introductionmentioning

confidence: 99%

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Mechanical Properties Test and Strength Prediction on Basalt Fiber Reinforced Recycled Concrete

Huang

Zhao

Wang

et al. 2021

Advances in Civil Engineering

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In order to study the mechanical properties of basalt fiber reinforced recycled concrete (BFRRC), nine groups of tests are designed with three different replacement rates of recycled aggregates (40%, 70%, and 100%) and volume fraction of basalt fibers (0.1%, 0.2%, and 0.3%). Another group of tests on ordinary concrete without fiber and recycled aggregate is used as comparison. The workability, cubic compressive strength, splitting tensile strength, and flexural strength of BFRRC are tested and analyzed. The effects of fiber content and recycled aggregate replacement ratio on the mechanical properties of concrete are studied. The strength development of fiber reinforced recycled concrete is predicted by using convolution neural network theory. The test results show that the fluidity of concrete mixtures decreases, while the cohesion and water retention are better than ordinary concrete with the increase of replacement ratio of recycled coarse aggregate and basalt fiber content. The compressive and flexural strength of recycled concrete first decrease and then increase slightly, while the splitting tensile strength of recycled concrete continue to decrease with the increase of replacement ratio of recycled aggregate. The flexural strength and splitting tensile strength of recycled concrete are obviously improved after adding basalt fiber, while the compressive strength increases first and then decreases with the increase of fiber content. A convolution neural network model for predicting the strength of basalt fiber reinforced recycled concrete is established. The predicted results are very close to the measured values and can be used as reference for the mix ratio of basalt fiber reinforced recycled concrete.

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Section: Summary Of Sectionsupporting

confidence: 81%

Section: Introductionmentioning

confidence: 99%

Mechanical Properties Test and Strength Prediction on Basalt Fiber Reinforced Recycled Concrete

Huang

Zhao

Wang

et al. 2021

Advances in Civil Engineering

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“…Glass fibers have more resistance to temperature, corrosion resistance, non-flammability, and good strength in tension, but also great sound, heat, and electric padding. Glass fibers could be used in concrete for different purposes, for example, forestalling the coalescence of cracks, crack control, and changing the material behavior by cracks bridging 20 , 21 . Adding glass fibers to RAC was seen to enhance the tensile strength by 12–19%, and the energy absorption capacity and deformation capacity are also enhanced 22 .…”

Section: Introductionmentioning

confidence: 99%

A step towards sustainable glass fiber reinforced concrete utilizing silica fume and waste coconut shell aggregate

Zaid

Ahmad

Siddique

et al. 2021

Sci Rep

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Today, it’s getting harder to find natural resources for concrete production. Utilization of the waste materials not just helps in getting them used in concrete, cement, and other construction materials, but also has various secondary advantages, for example, saving in energy, decrease in landfill cost, and protecting climate from pollution. Considering this in the development of modern structural design, utilizing waste materials instead of natural aggregate is a good option to make concrete that is sustainable and eco-friendly. The present research aims to find the impact of adding glass fiber into sustainable concrete made with silica fume, as a partial replacement of cement, and coconut shell added with different ratios as a replacement of coarse aggregate, on concrete mechanical and durability aspects. Various blends were made, with coconut shell as a substitution of coarse aggregates with different ratios. Portland cement was substituted with silica fume at 5%, 10%, 15%, and 20% by cement weight in all concrete blends. The volume ratios of glass fibers utilized in this study were 0.5%, 1.0%, 1.5% and 2.0%. Adding glass fibers increases concrete density to some extent and then marginally reduces the density of coconut shell concrete. When the percentage of glass fibers increases, the compressive, flexural and split tensile strength of coconut shell concrete also increases. From the lab results and SEM images of the present research display that glass fibers might be utilized in coconut shell concrete to enhance its mechanical and durability attributes, to accomplish sustainable concrete with acceptable strength with ease.

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“…To solve the complexity of the use of RA in new concrete safely, some researchers proposed new mixture prescriptions including mineral additions (i.e., silica fume (SF) [ 3 , 4 ], ground granulated blast furnace slag (GGBS) [ 5 , 6 ], metakaolin [ 7 ], fly ash (FA) [ 8 , 9 , 10 , 11 ], fibers with/without mineral addition (i.e., polypropylene [ 9 ], polypropylene + SF [ 12 ], steel fiber + SF [ 4 ], basalt fiber [ 13 , 14 ], basalt fiber + nano-silica [ 15 ], waste-plastic strip + FA [ 16 ], steel fiber + FA [ 17 ], steel fiber + GGBS [ 18 ], glass fiber + FA [ 19 ] or redefining mixing method (i.e., Equivalent Mortar Volume Method (EMV) [ 20 , 21 ], two stage mixing method [ 22 ]. The suggestions presented satisfactory results and gave confidence to mix designers of RAC.…”

Section: Introductionmentioning

confidence: 99%

Mineral Addition and Mixing Methods Effect on Recycled Aggregate Concrete

Dilbas

Güneş

2021

Materials

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This paper presents influence of treatment and mixing methods on recycled aggregate concretes (RAC) designed regarding various techniques. Absolute Volume Method (AVM) according to TS 802, Equivalent Mortar Volume Method (EMV), silica fume (SF) as a mineral addition were considered in the design of concretes. In total, four groups of concretes were produced in the laboratory: 1) natural aggregate concrete (NAC) designed with AVM as control concrete, 2) RAC designed with AVM as control RAC, 3) RAC with SF as a mineral addition designed with AVM as treated RAC and 4) RAC designed with EMV as treated RAC. The tests were performed at 28th days and the statistical analysis were made on the test results. According to the results, EMV and SF increased the compressive strength of concretes and this resulted an increase in the strength class of concrete. A significant statistical difference between the concretes were determined. According to multiple comparison analysis, it was found that especially there was a significant relationship among NAC, RAC and RAC-EMV. In addition, it was recommended that EMV and AVM with 5% SF could be used in the design of RAC rather than AVM only to achieve the target strength class C30/37.

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Influence of basalt fiber on physical and mechanical properties of treated recycled aggregate concrete

Cited by 98 publications

References 35 publications

Mechanical Properties Test and Strength Prediction on Basalt Fiber Reinforced Recycled Concrete

Mechanical Properties Test and Strength Prediction on Basalt Fiber Reinforced Recycled Concrete

A step towards sustainable glass fiber reinforced concrete utilizing silica fume and waste coconut shell aggregate

Mineral Addition and Mixing Methods Effect on Recycled Aggregate Concrete

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