engineering behavior of soil reinforced with plastic strips

KnE Engineering

The reuse and recycling rates for plastics are still below desirable values. The valorisation of plastic wastes that presently end in landfills or is incinerated can help to mitigate this environmental problem. There have been studies in soil improvement using plastic waste. Two types of plastic waste were used to assess their ability to improve soil properties for embankment construction and pavement layers. The selected plastic wastes are made from shredded package labels and ground bottles. The main properties of the soils were characterized. Three percentages of plastic waste were used, and the bearing capacity of the soil determined using CBR test (California Bearing Ratio). The results from the tests show that plastic waste stabilization leads to an increase in bearing capacity, expressed in CBR values, for low contents of plastic waste. This increase was more effective for high penetration values. Reduction in the bearing capacity was observed for higher plastic waste conten...

Black cotton soil contains montmorillonite clay mineral which has high expansive characteristics. Due to montmorillonite black cotton soil is an expansive soil which has undesirable plasticity characteristics it possesses high swelling and shrinkage properties and high optimum moisture content. The swelling and shrinking process of a sub grade black cotton soil results into failure of structures in the form of settlement and cracking. It may cause damage to the structure constructed on black cotton soil. Therefore, prior to construction of structures like foundation, buildings, pavements, roads on such subgrade, it is important to improve the engineering properties of soil by stabilization. Plastic bags of general use are produced from non-renewable petroleum and natural gas resources. Plastic bags are non-biodegradable. India and all over the world, facing the problem of disposal of plastic waste. In present project utilization of polyethylene shopping bags waste used for improveme...

Advances in Sustainable Construction Materials, 2021

Soil is the key element of this nature and all the basic needs of life such as food, house and cloths are fulfilled by the soil. Black Cotton soils with high potential for swelling and shrinking as a result of change in moisture content are one of the major soil deposits of India. Soil stabilization is the process which improves the physical properties of soil, such as shear strength, bearing capacity which can be done by use of controlled compaction or addition of suitable admixtures like cement, lime, sand, fly ash or by providing geo textiles, geo synthetics etc. The new technique of soil stabilization can be effectively used to meet the challenges of society, to reduce the quantities of waste, producing useful material from non-useful waste materials. Since the use of plastic in diversified forms such as chairs, bottles, polythene bags, etc., has been advancing speedily and its disposal has been a problem all the time regarding the environmental concern, using plastic as soil stabilizer would reduce the problem of disposing the plastic as well as increases the density and California Bearing Ratio (CBR) of soil in an economical way. The present study is focused to overcome the problems experienced in Amaravathi, the capital of newly formed Andhra Pradesh State. In the present study, an experimental program was conducted for stabilization of Black Cotton Soils in the Capital Region i.e., Amaravathi of newly formed Andhra Pradesh, with the utilization of Plastic waste as soil stabilizer. Different contents of plastic strips (% by weight varying from 0% to 8%) are added to the Black Cotton Soil and the optimum percentage of plastic strips in soil was found out by conducting California Bearing Ratio Test.

Soil stabilization alters the physical properties of soil in order to improve its strength, durability, or other qualities to meet the engineering requirements. It can be achieved by adding suitable admixtures like cement, lime and waste material like fly ash, gypsum etc or by other suitable stabilization method. the cost of adding these additives has tremendously increased in past few years; there for there is need for the development of other kinds of soil additive such as plastic, bamboo etc and these new techniques of soil stabilization using plastic waste which can be effectively used to solve the challenges of society, thereby reducing the amount of waste plastic material. Use of polythene bags, bottles, and other plastic products is exponentially increasing year by year due to which we are facing various environmental problems. Therefore the correct way disposing off of the plastic waste without causing any ecological hazard has become a real challenge today. A review paper in presented here to focus on soil stabilization methods by using waste plastic products.

IJSRD - International Journal for Scientific Research and Development, 2018

— Soil stabilization could be a method that improves the physical properties of soil, like increasing shear strength, bearing capability etc. which might be done by use of controlled compaction or addition of appropriate admixtures like cement, lime and waste materials like ash, phosphor mineral etc. This new technique of soil stabilization is effectively wont to meet the challenges of society, to scale back the quantities of waste, manufacturing helpful material from non-useful waste materials. Plastic like searching luggage is employed to as a reinforcement to perform the cosmic microwave background studies whereas admixture with soil for improving engineering performance of sub grade soil. Plastic strips obtained from waste plastic were mixed randomly with the soil. A series of California Bearing quantitative relation (CBR) tests were dole out on every which way bolstered soil by varied share of plastic strips with totally different lengths and proportions. Results of cosmic microwave background tests demonstrated that inclusion of waste plastic strips in soil with acceptable amounts improved strength and deformation behavior of sub grade soils considerably.

SN Applied Sciences, 2019

Recycling plastic waste from water bottles has become one of the main challenges worldwide. The aim of this study is to recycle empty plastic water bottles as reinforcing material for the improvement of sandy soil. The laboratory tests were performed on both natural and reinforced sands with different plastic waste percentages: 0, 0.5, 0.75 and 1.0 of the dry weight of sand at relative density states of 30% and 60%. Direct shear box and the California Bearing Ratio, CBR tests were performed to determine the effect of the plastic waste on the shear strength and the penetration resistance of the reinforced sand. Test results indicated that plastic waste reinforcement contributed to the improvement of the shear strength and the CBR number of the reinforced sand. Higher shear strength and higher penetration resistance were obtained with plastic waste reinforcement. The optimum percentage of plastic waste required for enhancing the shear strength and the CBR number was found to be 0.75%. With the optimum percentage of plastic waste, the improvement in the shear strength and the penetration resistance of the reinforced sand increased to at least 9% compared to natural soil at relative density states of 30% and 60%.

International Journal for Research in Applied Science and Engineering Technology

Soil adjustment is the procedure that improves soil physical properties, such as shear quality, bearing limit that should be possible through the use of controlled compaction or expansion of suitable admixtures such as cement, lime, sand, fly ash or geo-textiles, geo-synthetics, etc. Expansive soils such as black cotton soil are always causing problems with swelling, shrinking and unequal foundation settlement. Black Cotton soils with high swelling and contracting potential are one of India's major soil deposits as a result of changes in moisture content. The foundation is essential for any structure and it must be sufficiently able to help the whole structure. To establish the foundation, the soil around it plays a very important role in making plastic waste one of the world's biggest problems.. Utilization of plastic bottles and other plastic is exponentially expanding step by step because of these we are facing different ecological issues. The new method of soil adjustment can be adequately used to address the difficulties of society, to reduce the amounts of waste, creating valuable material from non-helpful waste materials. A review paper is introduced here to focus on soil stabilization by utilizing waste plastic items. Tests such as liquid limit, plastic limit, standard proctor compaction test, California bear ratio (CBR) test and direct shear test were performed check improvement in the properties of black cotton soil. Different contents of plastic waste % by weight varying by 0.5% 1.0% and 1.5% The black cotton soil was added and the optimal percentage of plastic strips was determined by the California bearing test ratio. 2%, 4%, 6%, 8% and 10% cement is used as a stabilizer by weight of soil.

2020

1M.Tech. Student, Construction Engineering and Management, Department of Civil Engineering, M.S. Ramaiah University of Applied Sciences, Bengaluru, Karnataka, India. 2Assistant Professor, Department of Civil Engineering, M.S. Ramaiah University of Applied Sciences, Bengaluru, Karnataka, India ---------------------------------------------------------------------***--------------------------------------------------------------------Abstract To encourage the usage of inferior locally available soil and also to enhance its strength stabilization techniques need to be adopted. Rapid urbanization and industrialization all over the world have resulted in large deposition of waste plastic. Disposal of waste plastic in the environment is a big hazard as it is non-biodegradable. In this paper, an experimental study is carried out to investigate the strength of stabilized soil by adding WPF have been discussed. The main objective of this study is to carry out the laboratory tests on stabilized...

Advances in Civil Engineering, 2022

Expansive soils are known for their volume changes due to fluctuation in the moisture content of the natural ground. This volume change causes huge destruction to many infrastructures. To avoid such damages, expansive soils should be well treated so that they become safe against bearing capacity failure and excessive settlement. In addition, everywhere plastic environmental pollution is a critical issue, which needs a proper way of utilization. This study primarily aimed at utilizing waste plastic materials with lime as subgrade pavement materials, which is cost-effective and environmentally friendly. Plastic water bottles are used as reinforcement with lime to improve the plasticity and strength properties of the expansive soils. Various laboratory tests are conducted using plastic waste strips with 0.25%, 0.5%, 0.75%, and 1% proportions as soil reinforcement and constant 5% of lime. Finally, significant improvements in CBR, unconfined compressive strength, and free swell are obser...