Effect of High Temperature on Mechanical Properties of Rubberized Concrete Using Recycled Tire Rubber as Fine Aggregate Replacement

Abdullah, Wrya; Abdulkadir, Mohamed; Muhammad, Muhammad A.

doi:10.30684/etj.36.8a.10

Cited by 20 publications

(4 citation statements)

References 3 publications

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“…In addition, the loss of mass is of the order of (2.6%, 2.8%, 3.4% and 4.9%) respectively for sand mortars at (0%, 10%, 20% and 30%) which indicates that the mass loss is proportional to the rubber content. The mass losses recorded by [30,31] at (200°C) are less than 5% for concretes with a maximum of substitutions of (24%), this finding confirms that the presence of gravel in the cementitious matrix reduces the loss of mass.…”

Section: A Loss Of Masssupporting

confidence: 70%

Effect of Rise in Temperature (250°C) on the Physico-Mechanical Properties of Rubber Mortars

Assia,

Messaouda,

Salima

et al. 2023

Advances in Materials Science

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The recovery and use of waste in the field of civil engineering, particularly in construction materials, is one of the most prominent solutions for preserving the environment. In order to evaluate the results obtained, it is necessary to study the evolution of the properties of these new materials in the different environments where they can live or be exposed, and why not develop an effective method of treatment of such materials for the possibility of their use even in the field of precast concrete. The objective of this work is to study the effect of the increase in temperature as a living environment or as a treatment on the physico-mechanical properties of a crumbled mortar, a potential source of many environmental and economic problems. Hence the screening and the possibility of using these new mortars with sufficient physico-mechanical properties for masonry and why not for prefabrication. The formulation of the mixtures based on the substitution of dune sand by crumb rubber, at different weight contents 10, 20 and 30%. Consequently, prismatic specimens (4x4x16) cm3 subjected to the temperature (250°C), with a speed of 2°C/min followed by a one-hour plateau at the target temperature then cooling to the ambient temperature. The results obtained show that the maximum mass loss is 5% for 30% substitution and that for 10% substitution the absorption by total immersion decreased by more than two thirds and the porosity accessible to water decreased by more than half. The compressive strength increases by 8.9% for 10% substitution and the minimum decrease in tensile strength by bending is at the same substitution of an order of 26.9%. Using the analysis of variance, the influence of the substitution of dune sand by rubber crumbs and of the rise in temperature to 250°C on the behavior of the mortar acquired. Patterns developed by response surface methodology were significant for all p-value substitutions <5%. The results of the numerical optimization showed that the best mixture could obtained by replacing 30% of dune sand with rubber crumb and subjecting the hardened mortar obtained from this mixture to the temperature of 135°C.

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Section: A Loss Of Masssupporting

confidence: 70%

Effect of Rise in Temperature (250°C) on the Physico-Mechanical Properties of Rubber Mortars

Assia,

Messaouda,

Salima

et al. 2023

Advances in Materials Science

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“…In other words, replacing rubber with powder generates a high level of viscosity. This is caused by their irregular shape and sharp edges [39,40], which noticed that the spread diameter of the slump flow and the volume of slurry that penetrated the fiber mass decreased with the higher dose of powder rubber. Table 3 lists the SIFCON mix design.…”

Section: Advances In Civil Engineeringmentioning

confidence: 99%

Post-Fire Behavior of Modified SIFCON One-Way Plates with Waste Tire Rubber under Flexural Load: Experimental and Numerical Study

Hashim,

Al-Shathr

2024

Advances in Civil Engineering

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In this research, an experimental and numerical investigation was conducted to study the flexural behavior of modified slurry-infiltrated fiber concrete slurry-infiltrated fibrous concrete (SIFCON) one-way plates after being subjected to a high temperature. The first part is an experimental work to ensure that the model developed is adequate, while the second part is a 3D finite element modeling of the SIFCON plates with the program ABAQUS using a sequentially coupled thermal displacement analysis. The experimental program included testing eight modified SIFCON plates containing waste powder rubber as a partial substitute for natural sand (0%, 5%, 10%, and 15%). All adopted specimens had identical dimensions (1,000 mm length, 300 mm width, and 50 mm thickness). Four specimens were exposed to fire for 2 hr at a constant temperature of 600°C, after which they were rapidly cooled by spraying them with water. Test results showed that increasing the powder rubber content of burned and unburned modified SIFCON specimens decreased the failure load and increased the specimens’ ductility factor, as well as the ultimate and service deflections. During the test, the failure of SIFCON was observed to be gradual, and the plates remained in contact even after the ultimate load was attained, whereas the failure of the reference mix (without wasted rubber) was observed to be more rapid than that of other SIFCON mixtures. For the flexural test, it gives desirable strength and good fire resistance. This study provides guidance for the study of SIFCON with waste rubber. Overall, the percentage of error between the experimental and numerical results for the load capacity and midspan displacement was about 5.05% and 8.65%, respectively.

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“…In other words, replacing rubber with powder generates a high level of viscosity. This is caused by their irregular shape and sharp edges [29,30] noticed that the spread diameter of the slump ow and the volume of slurry that penetrated the ber mass decreased with the higher dose of powder rubber.…”

Section: Materials Used and MIX Proportionsmentioning

confidence: 99%

Post-fire Behavior of Modified Slurry Infiltrated Fiber Concrete (SIFCON) Plates with Waste Tire Rubber under Flexural Load

Hashim,

Al-Shathr

2023

Preprint

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In this research, an experimental investigation was conducted on eight modified slurry-infiltrated fiber concrete (SIFCON) one-way plates to examine the performance of SIFCON-containing waste powder rubber as a partial substitute for natural sand (0, 5, 10, and 15%) under two point loads applied at the third portions of the plate after being subjected to a high temperature. The incorporation of rubber particles is primarily motivated by environmental concerns and the desire to reduce the danger of spalling after exposure to elevated temperatures. All adopted specimens had identical dimensions (1000 mm length, 300 mm width, and 50 mm thickness). Four specimens were exposed to fire for two hours at a constant temperature of 600°C, after which they were rapidly cooled by spraying them with water. The flexure behavior of the simply supported plates was evaluated by applying two point loads to the middle third of the plate (a test of four point load). The results revealed that the residual ultimate load of the burned plates with powder rubber replacement percentages of 0, 5, 10, and 15% was 83.3%, 61.08%, 61.03%, and 58.73%, respectively.

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Effect of High Temperature on Mechanical Properties of Rubberized Concrete Using Recycled Tire Rubber as Fine Aggregate Replacement

Cited by 20 publications

References 3 publications

Effect of Rise in Temperature (250°C) on the Physico-Mechanical Properties of Rubber Mortars

Effect of Rise in Temperature (250°C) on the Physico-Mechanical Properties of Rubber Mortars

Post-Fire Behavior of Modified SIFCON One-Way Plates with Waste Tire Rubber under Flexural Load: Experimental and Numerical Study

Post-fire Behavior of Modified Slurry Infiltrated Fiber Concrete (SIFCON) Plates with Waste Tire Rubber under Flexural Load

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