Effect of Addition of Waste Tyre Crumb Rubber on Weak Soil Stabilisation

Abstract Massive urbanisation and infrastructural development caused by the growing population have taken place during the last decades. This means that in a rapidly expanding world economy we are running out of land. This problem has led to the use of ground improvement techniques to enhance the usability of land masses that were once not considered suitable for the development of infrastructure. Geocell is an innovative soil stabilisation product for civil engineering and development of infrastructures. They are cell containment systems which have been produced as an easy and durable material to stabilise and protect the compaction of the soil. The environmental concern regarding the disposability of quarry dust powder (QDP), produced from production units of M-sand (Manufactured sand), is of concern to the environment. The statement that is “waste of one industry should become the raw material for another” and that drawback can be addressed effectively by using it to improve the geotechnical characteristics of the weak soil. The purpose of this study is to find the optimal geocell-layer geometry and optimum combination of QDP infills to produce less settlement at a particular load using PLAXIS 2D software. The characteristics that have been varied are quarry dust powder in infill, geocell material and frequency of loading. These parameters were used for simulations to study the response of load vs settlements and the FOS of the slope. The FOS on the slope on the terrain was found to be 4.5, a steady slope. An optimised reinforcing mattress was ultimately found out.

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Influence of Waste Tyre Crumb Rubber on Compressive Strength, Static Modulus of Elasticity and Flexural Strength of Concrete

IOP Conference Series Earth and Environmental Science ◽

10.1088/1755-1315/80/1/012014 ◽

2017 ◽

Vol 80 ◽

pp. 012014 ◽

Cited By ~ 1

Author(s):

M K Haridharan ◽

R Bharathi Murugan ◽

C Natarajan ◽

M Muthukannan

Keyword(s):

Compressive Strength ◽

Flexural Strength ◽

Modulus Of Elasticity ◽

Crumb Rubber ◽

Static Modulus ◽

Waste Tyre ◽

Static Modulus Of Elasticity

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A Review on Using Crumb Rubber in Reinforcement of Asphalt Pavement

The Scientific World JOURNAL ◽

10.1155/2014/214612 ◽

2014 ◽

Vol 2014 ◽

pp. 1-21 ◽

Cited By ~ 26

Author(s):

Nuha Salim Mashaan ◽

Asim Hassan Ali ◽

Mohamed Rehan Karim ◽

Mahrez Abdelaziz

Keyword(s):

Sustainable Development ◽

Critical Review ◽

Hot Mix Asphalt ◽

Asphalt Pavement ◽

Crumb Rubber ◽

Waste Materials ◽

Road Pavement ◽

Waste Tyre ◽

Asphalt Performance ◽

Pavement Construction

An immense problem affecting environmental pollution is the increase of waste tyre vehicles. In an attempt to decrease the magnitude of this issue, crumb rubber modifier (CRM) obtained from waste tyre rubber has gained interest in asphalt reinforcement. The use of crumb rubber in the reinforcement of asphalt is considered as a smart solution for sustainable development by reusing waste materials, and it is believed that crumb rubber modifier (CRM) could be an alternative polymer material in improving hot mix asphalt performance properties. In this paper, a critical review on the use of crumb rubber in reinforcement of asphalt pavement will be presented and discussed. It will also include a review on the effects of CRM on the stiffness, rutting, and fatigue resistance of road pavement construction.

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Marshall properties of waste polymer and nanoclay modified bitumen

Facta universitatis - series Architecture and Civil Engineering ◽

10.2298/fuace1401001s ◽

2014 ◽

Vol 12 (1) ◽

pp. 1-9 ◽

Cited By ~ 2

Author(s):

Mohammed Sadeque ◽

K.A. Patil

Keyword(s):

Construction Materials ◽

Crumb Rubber ◽

Low Density Polyethylene ◽

Waste Plastics ◽

Modified Bitumen ◽

Waste Tyre ◽

Waste Polymer ◽

Marshall Stability ◽

Polymer Modified Bitumen ◽

Montmorillonite Nanoclay

Polymer modified bitumen is emerging as one of the important construction materials for flexible pavements. The addition of polymers in bitumen improves the deformational stability and durability of bitumen. Also Montmorillonite nanoclay has been successfully used as additive in polymer to significantly improve the thermal stability and mechanical properties. The present study, the effect of waste low density polyethylene (LDPE), polypropylene (PP) obtained from waste carry bag, crumb rubber obtained from Waste tyre (CR)and nanoclay (MMT) on Marshall stability have been evaluated. Waste plastics, whose disposal is a matter of concern can be used successfully to modify the bitumen, these waste polymers are added in 2%, 4% and 6% whereas nanoclay is added in 1,2 and 3 % in 60/70 penetration grade bitumen and its effect on stability and flow of bitumen are evaluated. The result of experimental study shows that there is significant improvement in the Marshall Stability of bitumen due addition of waste polymer and nanoclay.

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Engineering Properties of Sandy soil Improvement with Bacillus Simplex

10.21203/rs.3.rs-340338/v1 ◽

2021 ◽

Author(s):

Baki Bagriacik ◽

Zahrettin Kabir Sani ◽

Fatima Masume Uslu ◽

Esra Sunduz Yigittekin ◽

Sadik Dincer

Keyword(s):

Calcium Carbonate ◽

Soil Improvement ◽

Engineering Properties ◽

Calcium Carbonate Precipitation ◽

Weak Soil ◽

Pathogenic Organism ◽

Direct Shear Tests ◽

Bacillus Simplex ◽

Soil Stabilisation ◽

Cement Stabilization

Abstract Purpose: Stabilization of weak soil can be achieved through different methods, some of which include: jet column, cement stabilization and fly ash stabilization. Unfortunately, the use of the aforementioned methods of soil improvement affects the environment negatively thereby leading to environmental degradation. With the aforesaid impediment in mind, the need for devising methods of weak soil improvement becomes pertinent. Methods: Bacillus sp. - a non-pathogenic organism found abundantly in soil - was investigated in this study as a potential agent of soil improvement. The usability of Bacillus sp. in soil improvement was investigated with direct shear tests and permeability tests under optimum conditions in this study.Result: Time-dependent study on the effect of the ureolytic bacteria Bacillus simplex induced calcium carbonate precipitation shows reduction in permeability and increase in the strength of the soil under study. On exhaustion of the available nutrients in the soil however, the strength of the soil is not negatively impacted.Conclusion: Microbially induced calcium precipitation by Bacillus sp. is effective in soil improvement as such it may serve as substitute for conventional soil stabilisation techniques. The ability of the bacteria to precipitate calcium carbonate in the soil leads to reduction in the permeability and increase in the shear strength of the soil.

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Impact Response of Paver Blocks with Waste Tyre Crumb Rubber

Lecture Notes in Civil Engineering - Recent Advances in Structural Engineering, Volume 1 ◽

10.1007/978-981-13-0362-3_54 ◽

2018 ◽

pp. 669-679

Author(s):

R. Bharathi Murugan ◽

E. Rama Sai ◽

C. Natarajan

Keyword(s):

Crumb Rubber ◽

Impact Response ◽

Waste Tyre

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Investigation on precast concrete paver block with waste tyre crumb rubber

Road Materials and Pavement Design ◽

10.1080/14680629.2015.1119056 ◽

2015 ◽

Vol 17 (3) ◽

pp. 719-736 ◽

Cited By ~ 4

Author(s):

Bharathi Murugan Rethinavelsamy ◽

Natarajan Chidambarathanu

Keyword(s):

Precast Concrete ◽

Crumb Rubber ◽

Waste Tyre

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Evaluation of Permanent Deformation of CRM-Reinforced SMA and Its Correlation with Dynamic Stiffness and Dynamic Creep

The Scientific World JOURNAL ◽

10.1155/2013/981637 ◽

2013 ◽

Vol 2013 ◽

pp. 1-7 ◽

Cited By ~ 6

Author(s):

Nuha Salim Mashaan ◽

Mohamed Rehan Karim

Keyword(s):

Resilient Modulus ◽

Dynamic Stiffness ◽

Permanent Deformation ◽

Economic Value ◽

Asphalt Mixture ◽

Crumb Rubber ◽

Green Technology ◽

Waste Materials ◽

Dynamic Creep ◽

Waste Tyre

Today, rapid economic and industrial growth generates increasing amounts of waste materials such as waste tyre rubber. Attempts to inspire a green technology which is more environmentally friendly that can produce economic value are a major consideration in the utilization of waste materials. The aim of this study is to evaluate the effect of waste tyre rubber (crumb rubber modifier (CRM)), in stone mastic asphalt (SMA 20) performance. The virgin bitumen (80/100) penetration grade was used, modified with crumb rubber at four different modification levels, namely, 6%, 12%, 16%, and 20% by weight of the bitumen. The testing undertaken on the asphalt mix comprises the indirect tensile (dynamic stiffness), dynamic creep, and wheel tracking tests. By the experimentation, the appropriate amount of CRM was found to be 16% by weight of bitumen. The results show that the addition of CRM into the mixture has an obvious significant effect on the performance properties of SMA which could improve the mixture's resistance against permanent deformation. Further, higher correlation coefficient was obtained between the rut depth and permanent strain as compared to resilient modulus; thus dynamic creep test might be a more reliable test in evaluating the rut resistance of asphalt mixture.

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