Flexural toughness of concrete with aggregate substitution (steel fiber, crumb rubber and tire chips)

Irmawaty, Rita; Parung, Herman; Abdurrahman, Muhammad Asad; Qalbi, I Nur

doi:10.1088/1755-1315/419/1/012038

Cited by 3 publications

(4 citation statements)

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“…Other than that, both SF1 and SF3 performed similarly to each other, both being slightly lower than the benchmark and having similar rates of compressive strength gain to each other. This comes at odds with the conclusions of other researchers who had success in increasing mechanical properties (such as compressive strength) with increasing dosages of SF [30]. Figure 9a shows the variation of compressive strength of samples containing a combination of SR and SF compared with the benchmark at the 7-and 28-day marks.…”

Section: Modulus Of Rupturementioning

confidence: 65%

“…As was the case with the tensile test results, the results of this test also indicate that there is no advantage in incorporating additional doses of steel fibers beyond 0.1%. Again, this comes at odds with the conclusions of other researchers who had success in increasing mechanical properties (such as flexural strength) with increasing dosages of SF [30]. Figure 11d shows the test results for the modulus of rupture for the hybrid mixes, containing combinations of SR, CR, and SF.…”

Section: Compressive Strengthmentioning

confidence: 77%

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Incorporation of Recycled Tire Products in Pavement-Grade Concrete: An Experimental Study

et al. 2021

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The phenomenon of dumping used tires in Kuwait has reached critical levels, with a landfill containing millions of tires being formed in a remote area, which is a major environmental hazard. Nowadays, recycled rubber is used as a suitable and useful material in civil engineering applications, particularly in the production of “green concrete”. This study aims to see whether recycled tire by-products can be used to make “green concrete” for pavements. Each type of tire by-product was tested individually to examine its properties and effects on a benchmark mix before creating hybrid mixes that contain a combination of the materials. Eleven mixes containing different doses of shredded or crumbed rubber or steel fibers contained within the tires were made to evaluate their impact on the concrete’s slump, compressive strength, split tensile strength, and modulus of rupture. Additionally, twelve hybrid concrete mixes containing different doses of various tire by-products were developed. Preliminary results show that the incorporation of rubber products has a reduction on the concrete’s properties. The use of replacement materials sourced from recycled tires using the dosages investigated in this study does not detract from the usability of green pavement concrete suited for hot weather. The concrete produced in this study could be evaluated for specific properties relating to its road safety in further studies. Additionally, long-term effects of using the concrete can be studied using finite element analysis.

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Section: Modulus Of Rupturementioning

confidence: 65%

Section: Compressive Strengthmentioning

confidence: 77%

Incorporation of Recycled Tire Products in Pavement-Grade Concrete: An Experimental Study

et al. 2021

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“…UHPC with different flexural toughnesses can be obtained by changing its water binder ratio (the ratio between the amount of water and the amount of cementitious material in each square of concrete, W/B) and steel fibre (SF) content. The flexural toughness ( f e ) of UHPC was evaluated according to the flexural toughness test method adopted by Zhu et al (2021) and Irmawaty et al (2020). Table 1 shows how four groups of samples were created, each with three test samples.…”

Section: Methodsmentioning

confidence: 99%

Flexural behaviour analysis of wet joint of precast bridge deck with UHPC functional gradient

Wang

Guo

Wang

et al. 2022

Advances in Structural Engineering

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To optimize the wet joint structure of a precast bridge deck and make effective use of ultrahigh-performance concrete (UHPC), five specimens of the prefabricated UHPC functional gradient wet joint plate (UFGWJP) and one normal concrete prefabricated wet joint plate were tested by four-point bending, and their failure modes, bearing capacity, deformation performance, and strain distribution were analysed. The results show that the failure mode of all joint plates was bending failure, and the initial cracking position was basically at the interface between the joint and the precast slab. The excellent mechanical properties of UHPC enhance the bonding performance between the joint and the precast plate interface and significantly improve the cracking load. With an increase in the thickness ratio of UHPC and the flexural toughness ratio of UHPC/normal concrete (NC), the bearing capacity and deformation performance of the joint plate gradually increase. Furthermore, the wet joint of a prefabricated bridge deck with a functional gradient can be designed and fabricated, and the structural optimization of the prefabricated bridge deck wet joints is proven successful by tests.

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“…Environmentally friendly, safe, and efficient road construction has become the hope and concern for the road pavement industries around the world [1,2]. Sustainable construction has become important due to the increasingly limited availability of resources in construction [3,4], especially road construction [5]. On the other hand, the need for road materials is increasing every year for the construction and maintenance of roads [6].…”

Section: Introductionmentioning

confidence: 99%

The Effect of Recycled Material and Buton Granular Asphalt (BGA) on Asphalt Concrete Mixture Performance

et al. 2023

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Pavement recycling is an appropriate technology for constructing and restoring road pavement structures due to the limited supply and high cost of pavement materials. This study aims to improve the recycled mix's performance by replacing the fine aggregate in the recycled mix for road pavement with Buton Granular Asphalt (BGA). The percentage of recycled material (Reclaimed Asphalt Pavement/RAP) in the mixture was limited to 20% and 30% by weight of the total mixture. BGA was added by 3%, 6%, and 9% in each mixture with the RAP variation. Mixture performance was obtained through Indirect Tensile Strength (ITS) testing. The ITS test results showed that the ITS value of the mixture with RAP and BGA increased by an average of 4.7–15% compared to the mixture without RAP and BGA. The Toughness Index (TI) value increased by 3.5–19.8% with the addition of RAP. With the addition of 3% BGA, the TI value tends to increase and subsequently decrease up to 9% BGA levels. The result indicated that adding 30% RAP and 3% BGA to the mixtures improved pavement performance and could be a solution to increase the elasticity and fracture resistance of the mixture. Doi: 10.28991/CEJ-2023-09-06-09 Full Text: PDF

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Flexural toughness of concrete with aggregate substitution (steel fiber, crumb rubber and tire chips)

Cited by 3 publications

References 1 publication

Incorporation of Recycled Tire Products in Pavement-Grade Concrete: An Experimental Study

Incorporation of Recycled Tire Products in Pavement-Grade Concrete: An Experimental Study

Flexural behaviour analysis of wet joint of precast bridge deck with UHPC functional gradient

The Effect of Recycled Material and Buton Granular Asphalt (BGA) on Asphalt Concrete Mixture Performance

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