Study of rubber-filled cementitious composites

Raghavan, Dharmaraj

doi:10.1002/(sici)1097-4628(20000725)77:4<934::aid-app30>3.0.co;2-l

Cited by 20 publications

(6 citation statements)

References 12 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…Partially replacing the coarse or fine aggregate of concrete with some quantity of small waste tire cubes can improve qualities such as low unit weight, high resistance to abrasion, absorbing the shocks and vibrations, high ductility and brittleness and so on to the concrete. Moreover the inclusion of rubber into concrete results in higher resilience, durability and elasticity [3][4][5][6][7][8][9]. In constructions that are subject to impact effects the use of rubberized concrete will be beneficial due to the altered state of its properties.…”

Section: Rubberized Concretementioning

confidence: 99%

A Review on Construction Technologies that Enables Environmental Protection: Rubberized Concrete

Kumaran¹,

Mushule²

2008

American J. of Engineering and Applied Sciences

View full text Add to dashboard Cite

Throughout the world, the disposal of used tires is a major environmental problem causing environmental hazards such as breeding ground for mosquitoes, producing uncontrolled fire and they are contaminating the soil and vegetation. Therefore, there is an urgent need to identify alternative outlets for these tyres, with the emphasis on recycling the waste tyre. Concrete is an excellent structural material and considered as essential for the modern civilization and human society. Now, the use of waste tires in concrete has become technically feasible and the concrete is being considered as light weight concrete. This study reviews the feasibility of using waste tires in the form of chips and fibers with different sizes in concrete to improve the strength as well as protecting the environment. Also it reviews the potential application in the field by exploiting its unique characteristics and properties. In this study, we outline the use of rubberized concrete in structural and non-structural members and show how it is suitable for the concrete, its uses, barriers and benefits and way to future study.

show abstract

Section: Rubberized Concretementioning

confidence: 99%

A Review on Construction Technologies that Enables Environmental Protection: Rubberized Concrete

Kumaran¹,

Mushule²

2008

American J. of Engineering and Applied Sciences

View full text Add to dashboard Cite

show abstract

“…However, it has construction use limitations due to its relatively low compressive strength, tensile strength, and modulus of elasticity [20]. This is due to the poor rubber bond performance with the cement paste [21,22] and its inherent soft material property [23,24].…”

Section: Introductionmentioning

confidence: 99%

Practical Rubber Pre-Treatment Approch for Concrete Use—An Experimental Study

et al. 2021

View full text Add to dashboard Cite

There is a lot of ongoing active research all over the world looking for various applications of used tyre rubber, to increase its utilisation rate. One of the common research applications is to incorporate rubber into concrete as a partial replacement for conventional aggregates. However, due to its poor bonding performance with cement paste, the utilisation of rubber in concrete has been hindered to date. A cost-effective and time-saving rubber pre-treatment method is of great interest, especially for the concrete industry. Out of all the various pre-treatment methods, soaking rubber particles in water is the most cost-effective and least complex method. In addition, sodium sulphate accelerates the hydration reaction of the cement composites. This study looks at the effect of soaking crumb rubber in tap water for short (2 h) and long (24 h) durations, and the optimised duration was then compared with soaking the crumb rubber in a 5% concentration of sodium sulphate solution. Compressive strength, bond behaviour, and rubber/cement interfacial transition zone (ITZ) were investigated using X-ray diffraction (XRD) and scanning electron microscopy (SEM) analysis. The results demonstrate that a soaking duration of 2 h provides much better performance in both the strength and bond properties compared to 24-h soaking. A further improvement in the 7-day strength was achieved with the rubber soaked in 5% sodium sulphate solution for 2 h, providing a more practical and economical rubber pre-treatment method for concrete industry use.

show abstract

“…In recent years, silane coupling agents (SCAs) have been used to modify rubber to make it suitable for more engineering applications. − SCA is an organosilicon compound containing both organic functional groups and hydrolyzable groups in the molecule, with a general molecular structure of Y–Si–X 3 . , Among them, the Y group (such as vinyl groups, epoxy groups, etc.) has good affinity for organics and is easy to bond with organics such as rubber.…”

Section: Introductionmentioning

confidence: 99%

Silane Coupling Agent Modification Treatment to Improve the Properties of Rubber–Cement Composites

Zheng

Hou

et al. 2021

ACS Sustainable Chem. Eng.

View full text Add to dashboard Cite

Declining strength is a key limitation for the promotion and application of rubber–cement-based composites. Silane coupling agents (SCAs) provide a new idea for improving the weak interface of rubber–cement-based materials, but the mechanism of SCA modification in the improvement of mechanical properties is not well established. In this paper, for the first time, a multi-scale exploration of SCA-modified rubber–cement-based materials was conducted to explore the modification effect and to reveal the modification mechanism using a combination of experiments and simulations. The experimental results showed that the mechanical properties of KH570-modified rubber–cement-based composites were greatly improved as compared with the composites treated with KH550, KH560, and A151. The modification treatment can effectively introduce KH570 molecules into the weak interface, thus effectively repairing the interfacial defects between the rubber particles and the cementitious material. The molecular dynamics simulation results show that the weak intermolecular interaction between the butadiene group of butadiene rubber and the calcium–silica structure of C–S–H is the essence of the weak combination of the two phases. The mechanical occlusion between KH570 molecules and rubber molecular chains can effectively bond the elastic rubber to the hard cement matrix, improving the frictional resistance and chemical bonding at the interface and giving it full play in the excellent deformation properties of rubber when the composite material is stressed.

show abstract

Study of rubber-filled cementitious composites

Cited by 20 publications

References 12 publications

A Review on Construction Technologies that Enables Environmental Protection: Rubberized Concrete

A Review on Construction Technologies that Enables Environmental Protection: Rubberized Concrete

Practical Rubber Pre-Treatment Approch for Concrete Use—An Experimental Study

Silane Coupling Agent Modification Treatment to Improve the Properties of Rubber–Cement Composites

Contact Info

Product

Resources

About