Experimental Study and Mathematical Modeling of Mechanical Properties of Basalt Fiber-Reinforced Recycled Concrete Containing a High Content of Construction Waste

Herein, we conducted an experimental test on basalt fiber-reinforced concrete with a high content of construction and demolition waste and then established some mathematical models based on Taylor’s formula. The concrete was prepared by using recycled clay brick powder in place of cement and recycle...

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Main Authors: Wei-Zhi Chen, Xue-Fei Chen
Format: Article
Language:English
Published: MDPI AG 2023-11-01
Series:Construction Materials
Subjects:
Online Access:https://www.mdpi.com/2673-7108/3/4/30
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author Wei-Zhi Chen
Xue-Fei Chen
author_facet Wei-Zhi Chen
Xue-Fei Chen
author_sort Wei-Zhi Chen
collection DOAJ
description Herein, we conducted an experimental test on basalt fiber-reinforced concrete with a high content of construction and demolition waste and then established some mathematical models based on Taylor’s formula. The concrete was prepared by using recycled clay brick powder in place of cement and recycled coarse aggregates as a substitution for natural coarse aggregates. The basalt fiber in weight dosages of 0, 0.1, 0.3, and 0.5% was used for reinforcement. The results showed that the compressive strength of concrete declined as the content of recycled aggregates increased, while the compressive strength first increased and then decreased as the basalt fiber dosage lifted. Regarding the splitting tensile strength, the reinforcement effect of basalt fiber in concrete with a high content of recycled aggregate is more significant when compared to its to its counterpart, which contains no or fewer recycled aggregates. The concrete with 0.5% basalt fiber dosage and 100% recycled aggregate content retains an equivalent compressive strength as to that of natural aggregate concrete and has about a 90% splitting tensile strength. In addition, the cubic function in comparison to the quadratic function has a higher fitting accuracy.
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spelling doaj.art-48704696510a4444a39b3ad29876cf012023-12-22T14:01:33ZengMDPI AGConstruction Materials2673-71082023-11-013446247310.3390/constrmater3040030Experimental Study and Mathematical Modeling of Mechanical Properties of Basalt Fiber-Reinforced Recycled Concrete Containing a High Content of Construction WasteWei-Zhi Chen0Xue-Fei Chen1Joint Key Laboratory of the Ministry of Education, Institute of Applied Physics and Materials Engineering, University of Macau, Avenida da Universidade, Taipa, Macau 999078, ChinaJoint Key Laboratory of the Ministry of Education, Institute of Applied Physics and Materials Engineering, University of Macau, Avenida da Universidade, Taipa, Macau 999078, ChinaHerein, we conducted an experimental test on basalt fiber-reinforced concrete with a high content of construction and demolition waste and then established some mathematical models based on Taylor’s formula. The concrete was prepared by using recycled clay brick powder in place of cement and recycled coarse aggregates as a substitution for natural coarse aggregates. The basalt fiber in weight dosages of 0, 0.1, 0.3, and 0.5% was used for reinforcement. The results showed that the compressive strength of concrete declined as the content of recycled aggregates increased, while the compressive strength first increased and then decreased as the basalt fiber dosage lifted. Regarding the splitting tensile strength, the reinforcement effect of basalt fiber in concrete with a high content of recycled aggregate is more significant when compared to its to its counterpart, which contains no or fewer recycled aggregates. The concrete with 0.5% basalt fiber dosage and 100% recycled aggregate content retains an equivalent compressive strength as to that of natural aggregate concrete and has about a 90% splitting tensile strength. In addition, the cubic function in comparison to the quadratic function has a higher fitting accuracy.https://www.mdpi.com/2673-7108/3/4/30concreterecycled aggregatesconstruction waste
spellingShingle Wei-Zhi Chen
Xue-Fei Chen
Experimental Study and Mathematical Modeling of Mechanical Properties of Basalt Fiber-Reinforced Recycled Concrete Containing a High Content of Construction Waste
Construction Materials
concrete
recycled aggregates
construction waste
title Experimental Study and Mathematical Modeling of Mechanical Properties of Basalt Fiber-Reinforced Recycled Concrete Containing a High Content of Construction Waste
title_full Experimental Study and Mathematical Modeling of Mechanical Properties of Basalt Fiber-Reinforced Recycled Concrete Containing a High Content of Construction Waste
title_fullStr Experimental Study and Mathematical Modeling of Mechanical Properties of Basalt Fiber-Reinforced Recycled Concrete Containing a High Content of Construction Waste
title_full_unstemmed Experimental Study and Mathematical Modeling of Mechanical Properties of Basalt Fiber-Reinforced Recycled Concrete Containing a High Content of Construction Waste
title_short Experimental Study and Mathematical Modeling of Mechanical Properties of Basalt Fiber-Reinforced Recycled Concrete Containing a High Content of Construction Waste
title_sort experimental study and mathematical modeling of mechanical properties of basalt fiber reinforced recycled concrete containing a high content of construction waste
topic concrete
recycled aggregates
construction waste
url https://www.mdpi.com/2673-7108/3/4/30
work_keys_str_mv AT weizhichen experimentalstudyandmathematicalmodelingofmechanicalpropertiesofbasaltfiberreinforcedrecycledconcretecontainingahighcontentofconstructionwaste
AT xuefeichen experimentalstudyandmathematicalmodelingofmechanicalpropertiesofbasaltfiberreinforcedrecycledconcretecontainingahighcontentofconstructionwaste