Properties of high strength concrete containing surface-modified crumb rubber

doi:10.14256/jce.2312.2018

Cited by 4 publications

(2 citation statements)

References 17 publications

(22 reference statements)

Supporting

Mentioning

Contrasting

Order By: Relevance

“…This reduction is on account of (a) low stiffness of crumb rubber in contrast with river sand that reduces mass stiffness and the load bearing capacity; (b) poor bonding of rubber as a result of its water repelling nature which initiates the crack formation under loads eventually leading to lower compressive strength. 8,10,[26][27][28] From Figure 10, the crumb rubber in concrete is decreased the unit weight by 0.68% for 5CR0SF due to its low specific gravity.…”

Section: Effect Of Untreated Crumb Rubbermentioning

confidence: 99%

Effect of modified clay treated crumb rubber and silica fume on the properties of concrete

Nagarajan¹,

Shanmugasundaram²

2021

Structural Concrete

View full text Add to dashboard Cite

The stacking of worn out tyres on the environment is the major concern in the world due its non‐biodegradable nature. Environmental issues related with disposal of rubber and also the mining of river sand could be minimized by using crumb rubber as fine aggregate. The objective of the article is to strengthen the interfacial bonding of crumb rubber with cement paste using modified clay for counteracting the strength reduction of rubberized concrete. The microstructure of rubber was examined to study the effectiveness of modified clay treatment of rubber using scanning electron microscopy (SEM). The cement was partially replaced with silica fume (0%, 5%, 10%, 15%, and 20%) and GGBS (30%). The properties of concrete such as workability, unit weight, compressive strength, split tensile strength, flexural strength, and impact strength were studied. The results showed that the inclusion of modified clay treated rubber with silica fume exhibited a low strength reduction of 0.45% compared with control mix which makes the rubberized concrete suitable for the structural elements.

show abstract

Section: Effect Of Untreated Crumb Rubbermentioning

confidence: 99%

Effect of modified clay treated crumb rubber and silica fume on the properties of concrete

Nagarajan¹,

Shanmugasundaram²

2021

Structural Concrete

View full text Add to dashboard Cite

show abstract

“…The need for proper and environmentally friendly ways of reusing discarded waste tires has lead researchers to find feasible means of using the rubber in cement composites as construction material (Gerges, Issa, & Fawaz, 2018;Gonen, 2018;Lakusic, 2019;Mohammed, Awang, Wong, & Nhavene, 2016). Cement composites (chiefly cement mortar and concrete) are the most popular construction materials in the world (Horszczaruk, Mijowska, Kalenczuk, Aleksandrzak, & Mijowska, 2015;Z.…”

Section: Introductionmentioning

confidence: 99%

Effect of Waste Tire Rubber on the Durability Behavior of Cement Composites: A Review

Abdulkadir

Mohammed

2020

Journal of Infrastructure &Amp; Facility Asset Management

View full text Add to dashboard Cite

A lot of literature reviews exist on the mechanical properties of rubberized cement composites (mortar, concrete and engineered cementitious composite). However, very little of such works exist on the effect of waste tire rubber on the durability of the composites. This paper aims to review how the use of tire rubber in cement composites affects the water absorption, permeability and resistance to aggressive chemicals (sulphates and chlorides). Recent literatures on the use of CR in concrete, mortar, and Engineered Cementitious Composites (ECC) were reviewed to assess how incorporation of rubber influences the water absorption, permeability, and chloride and sulphate resistance of the composites. The findings revealed that CR incorporation consistently enhances the resistance of the composites to the adverse effect of chloride and sulphate ions. However, there are differing opinions by researchers regarding the effect of the CR on water absorption and permeability of the rubberized composites.

show abstract

Effect of Crumb Rubber, Fly Ash, and Nanosilica on the Properties of Self-Compacting Concrete Using Response Surface Methodology

et al. 2022

View full text Add to dashboard Cite

Producing high-strength self-compacting concrete (SCC) requires a low water-cement ratio (W/C). Hence, using a superplasticizer is necessary to attain the desired self-compacting properties at a fresh state. The use of low W/C results in very brittle concrete with a low deformation capacity. This research aims to investigate the influence of crumb rubber (CR), fly ash (FA), and nanosilica (NS) on SCC’s workability and mechanical properties. Using response surface methodology (RSM), 20 mixes were developed containing different levels and proportions of FA (10–40% replacement of cement), CR (5–15% replacement of fine aggregate), and NS (0–4% addition) as the input variables. The workability was assessed through the slump flow, T500, L-box, and V-funnel tests following the guidelines of EFNARC 2005. The compressive, flexural, and tensile strengths were determined at 28 days and considered as the responses for the response surface methodology (RSM) analyses. The results revealed that the workability properties were increased with an increase in FA but decreased with CR replacement and the addition of NS. The pore-refining effect and pozzolanic reactivity of the FA and NS increased the strengths of the composite. Conversely, the strength is negatively affected by an increase in CR, however ductility and deformation capacity were significantly enhanced. Response surface models of the mechanical strengths were developed and validated using ANOVA and have high R2 values of 86–99%. The optimization result produced 36.38%, 4.08%, and 1.0% for the optimum FA, CR, and NS replacement levels at a desirability value of 60%.

show abstract

Properties of high strength concrete containing surface-modified crumb rubber

Cited by 4 publications

References 17 publications

Effect of modified clay treated crumb rubber and silica fume on the properties of concrete

Effect of modified clay treated crumb rubber and silica fume on the properties of concrete

Effect of Waste Tire Rubber on the Durability Behavior of Cement Composites: A Review

Effect of Crumb Rubber, Fly Ash, and Nanosilica on the Properties of Self-Compacting Concrete Using Response Surface Methodology

Contact Info

Product

Resources

About