Properties of Rubberized Concrete Prepared from Different Cement Types

Idriss, Lamiaa K.; Gamal, Yasser Abdel Shafy

doi:10.3390/recycling7030039

Cited by 8 publications

(9 citation statements)

References 17 publications

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“…According to the requirements of the standard test method of mechanical propert on ordinary concrete GB/T50081-2019, the formulae for calculating compressive streng and tensile strength are shown in Equations ( 1) and (2).…”

Section: Test Methods Of Mechanical Propertiesmentioning

confidence: 99%

“…Substantial research has been carried out to enhance the engineering properties, rheology, durability, and sustainability of various types of concrete [1]. At present, global waste tire generation considerably exceeds consumption; waste rubber tires are a cause of concern, as huge volumes are being discarded and buried, thus causing serious environmental pollution [2]. Scholars have processed waste rubber to make rubber particles or rubber powder, and mixed it into concrete as aggregate to make rubber concrete [3].…”

Section: Introductionmentioning

confidence: 99%

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Influence of Basalt Fiber on Mechanical Properties and Microstructure of Rubber Concrete

Wang

Shao²,

Wang³

et al. 2022

Sustainability

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The utilization of waste rubber in concrete will reduce pollution and improve the efficiency of resource utilization. The effects of rubber particles and basalt fibers on the compressive strength and splitting tensile strength of concrete were investigated. In addition, the influence of basalt fibers on the mechanical properties and micropore structure of rubber concrete (RC) were analyzed using scanning electron microscopy (SEM) and X-ray computed tomography (CT). The distribution of rubber particles in concrete was also studied. The results indicate that the effects of basalts fibers on the mechanical properties of rubber concrete were significant. The rubber particles were evenly distributed in the concrete. Compared with normal concrete (NC), rubber concrete with 10% rubber particles had lower compressive strength and splitting tensile strength. Compared with rubber concrete, basalt fiber rubber concrete (BFRC) with 2% basalt fibers had no obvious effect on the compressive strength, while significantly improving the splitting tensile strength, refining the pores of rubber concrete, and reducing the porosity of the matrix. The effects of basalt fiber on the properties and pore distribution of RC should be considered in future applications.

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Section: Test Methods Of Mechanical Propertiesmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Influence of Basalt Fiber on Mechanical Properties and Microstructure of Rubber Concrete

Wang

Shao²,

Wang³

et al. 2022

Sustainability

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“…Since the 1980s, many scholars have been adding waste tire rubber powder to concrete to prepare CRC [ 9 , 10 , 11 , 12 ]. The addition of crumb rubber not only improves upon the disadvantages of the heavy weight and high brittleness of concrete but also expands the application field of waste rubber recycling.…”

Section: Introductionmentioning

confidence: 99%

Experimental Study on the Mechanical Properties of Crumb Rubber Concrete after Elevated Temperature

Yang

Lv²,

Bai

et al. 2023

Polymers

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To reduce the environmental damage caused by waste rubber, crumb rubber concrete (CRC) was prepared by replacing some fine aggregates with crumb rubber. The effects of elevated temperature as well as crumb rubber content on the mechanical properties of the prepared CRC were studied. The crumb rubber contents were 0%, 10%, and 20%, while CRC was subjected to atmospheric temperatures (AT) of 300 °C, 500 °C, and 700 °C. The concrete without crumb rubber content was used as the control group at the atmospheric temperature. The mass loss, thermal conductivity characteristics, compressive strength, splitting tensile strength, axial compressive strength, elastic modulus, and stress-strain characteristics of CRC at elevated temperatures were studied. The experimental results show that: (1) With the increase in crumb rubber content and temperature, the cracks on the surface of the specimen gradually widen while the mass loss of the specimen increases. (2) With the increase in crumb rubber content and temperature, the cube compressive strength, splitting tensile strength, axial compressive strength, and elastic modulus of CRC decrease, yet the plastic failure characteristics of CRC are more obvious. (3) The influences of elevated temperature on strength and elastic modulus are as follows: splitting tensile strength > elastic modulus > axial compressive strength > cubic compressive strength. (4) With the increase in temperature, the stress-strain curve of the CRC tends to flatten, the peak stress decreases, and the corresponding peak strain significantly increases. With the increase in crumb rubber content, there is a great decrease in peak stress, yet the corresponding peak strain is basically the same. The use of CRC can be prioritized in applications that increase toughness rather than strength.

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“…The construction industry has been led through rapid growth due to the energy crisis and environmental consciousness. Idriss et al [14] state that this perpetrates a large increase in waste materials such as cellulose, fly ash, silica fume, and particularly rubber from scrap tyres. The results of the laboratory work show that the replacement of fly ash with cement reduces the abrasion resistance of concrete; however, the inclusion of steel fiber improves the abrasion resistance of concrete [15].…”

Section: Introductionmentioning

confidence: 99%

The Effect of a Combination of Steel Fiber Waste Tyre and Crumb Rubber on the Mechanical Properties of High-Strength Concrete

2023

GEOMATE

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This study examined the effect of a combination of steel fiber waste tyre (SFWT) and crumb rubber (CR) on high-strength concrete. Steel fiber and crumb rubber ranging in size from 1-2 mm were recycled from waste tires. The steel fiber waste tyre was then incorporated into high-strength rubberized concrete (HSRC) and high-strength rubberized fly ash concrete (HSRFAC) mixes. In this study, 10% volume of crumb rubber of maximum size passing sieve 4.75 mm was used to replace fine aggregates and steel fiber waste tyre (SFWT) dosages of 0%, 0.5%, 1.0%, 1.5%, and 2.0% by mass of concrete were added in concrete to investigate the mechanical properties of the high strength concrete. The compressive and tensile strength tests at 28 days were carried out on cylinder specimens of 150 mm diameter and 300 mm length. The results show that the addition of SFWT on HSRC and HSRFAC reduces concrete workability but increases the mechanical properties of the concrete. More SFWT are added, the higher compressive and tensile strength were obtained. The use of SFWT by 0%, 0.5%, 1.0%, 1.5%, and 2.0% on high-strength rubberized concrete (HSRC) increases the compressive strength of 2.65%, 10.55%, 20.91%, and 32.89% and the tensile strength of 5.78%, 21.97%, 32.95%, and 41.62%, respectively. The higher compressive and tensile strengths on high-strength rubberized fly ash concrete (HSRFAC) mixtures are observed at the addition of 2% SFWT with 10% content of crumb rubber. The addition of 2% SFWT improves the maximum compressive and tensile strengths up to 41.58% and 50.30%, which is 73.48 MPa and 6.46 MPa, respectively.

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Properties of Rubberized Concrete Prepared from Different Cement Types

Cited by 8 publications

References 17 publications

Influence of Basalt Fiber on Mechanical Properties and Microstructure of Rubber Concrete

Influence of Basalt Fiber on Mechanical Properties and Microstructure of Rubber Concrete

Experimental Study on the Mechanical Properties of Crumb Rubber Concrete after Elevated Temperature

The Effect of a Combination of Steel Fiber Waste Tyre and Crumb Rubber on the Mechanical Properties of High-Strength Concrete

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