Mechanical and stress-strain behavior of basalt fiber reinforced rubberized recycled coarse aggregate concrete

Chen, Aijiu; Han, Xiaoyan; Chen, Meng; Wang, Xiaoyu; Wang, Wenwen; Guo, Tengteng

doi:10.1016/j.conbuildmat.2020.119888

Cited by 81 publications

(16 citation statements)

References 58 publications

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“…Moreover, the specimen failed in a brittle manner, accompanying peeling off and dislocation and crackling sounds can be heard when the specimen lost bearing capacity. This result was consistent with the previous investigation [8]. The specimens containing HES fibers after failure had more vertical fine cracks.…”

Section: Failure Modessupporting

confidence: 93%

Mesoscale Modeling of Hooked-End Steel Fiber Reinforced Concrete under Uniaxial Compression Using Cohesive Elements

Feng¹,

Yin²,

Li³

et al. 2021

JAMP

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Section: Failure Modessupporting

confidence: 93%

Mesoscale Modeling of Hooked-End Steel Fiber Reinforced Concrete under Uniaxial Compression Using Cohesive Elements

Feng¹,

Yin²,

Li³

et al. 2021

JAMP

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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%

“…e mechanical properties of recycled concrete can be improved by mixing basalt fiber and nano silica [29,30]. Basalt fiber and rubber particles can improve the deformation performance of recycled concrete [31]. Basalt fiber can effectively improve the bearing capacity of recycled concrete beams [32].…”

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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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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“…The government requirement to mitigate the environmental impact of the different construction projects through the proper management of the C&DW potentiates their reincorporation into the construction production chain through recycling. However, to use this waste in new projects, it is necessary to evaluate the physical, chemical, mechanical, and durability characteristics of the C&DW [11][12][13]. The use of C&DW as aggregates of concrete mixtures without knowing their properties can generate projects with concrete properties in a fresh and hardened state that are undesirable and unsafe for its users.…”

Section: Global Contextmentioning

confidence: 99%

Mechanical Properties of Concrete Using Recycled Aggregates Obtained from Old Paving Stones

et al. 2021

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Nowadays, construction, maintenance, reparation, rehabilitation, retrofitting, and demolition from infrastructure and buildings generate large amounts of urban waste, which usually are inadequately disposed due to high costs and technical limitations. On the other hand, the increasing demand for natural aggregates for concrete production seriously affects mountains and rivers as they are the source of these nonrenewable goods. Consequently, the recycling of aggregates for concrete is gaining attention worldwide as an alternative to reduce the environmental impacts caused by the extraction of nonrenewable goods and disposal of construction and demolition waste (C&DW). Therefore, this article describes the effect on the mechanical properties of new concrete using recycled aggregates obtained from old paving stones. Results show that replacing 50% by weight of the fine and coarse aggregate fractions in concrete with recycled aggregate does not meaningfully affect its mechanical behavior, making the use of recycled aggregates in new precast paving stones possible. Therefore, the latter can reduce environmental impacts and costs for developing infrastructure and building projects.

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Mechanical and stress-strain behavior of basalt fiber reinforced rubberized recycled coarse aggregate concrete

Cited by 81 publications

References 58 publications

Mesoscale Modeling of Hooked-End Steel Fiber Reinforced Concrete under Uniaxial Compression Using Cohesive Elements

Mesoscale Modeling of Hooked-End Steel Fiber Reinforced Concrete under Uniaxial Compression Using Cohesive Elements

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

Mechanical Properties of Concrete Using Recycled Aggregates Obtained from Old Paving Stones

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