Characteristic Properties of Plastic Wastes: Possibility of Reinforcing Material for Soil (original) (raw)

Performance of plastic waste for soil improvement

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%.

Improvement of Soil Properties by Using Waste Plastic

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...

Improvement in the Engineering Properties of Soil using Plastic Waste

International Journal for Research in Applied Science and Engineering Technology IJRASET, 2020

According to central board of India, Our country generates 25,940 tons plastic per day which is close to the weight of 9000 Asians elephant, 86 bowing and 747 jets. Out of which 10376 per day is uncollected plastic. The gathering of plastic items in the condition that unfavorably influences Wildlife, wild environment or people. Plastic that acts as pollutants However, it is slow to degrade. Plastic pollution can unfavorably affect lands, waterways and oceans. Living organism particularly marine animals can also be affected through entanglement, direct ingestion of plastic waste. The productions of plastic have been increasing day by day and it is to big question have arisen, how can be disposed plastic waste. This research involves an investigation on the effects of plastic waste on some geotechnical properties of locally available soil. The investigation includes evaluation of properties such as compaction, Atterberg limits and strength of soil by performing triaxial test, CBR test, permeability test. These test are perform on the untreated soil and soil treated with plastic waste content in the form of random size and perforated strips with percentage of 0.1%,0.3%, 0.5%,0.7%, and !% By this entire test we will find the optimum percentage of plastic strips in soil Keywords: Engineering properties, locally available soil, random size and perforated strips.

Utilization of Plastic Waste in Soil Reinforcement: A Review

International Journal of Technical Research & Science, 2020

Soil stabilization is one of the best methods for improving index properties, physical properties like shear strength, bearing capacity etc. of the soil. For soil stabilization various admixture such as cement, lime, fly ash, gypsum etc. can be used. But these admixtures are costly so their uses for soil stabilization are limited. In some research it is found that utilization of waste material like plastic, bamboo etc. are quite helpful in stabilization of soil. In present world there is scarcity of good soil which makes construction process difficult. So to enhance the properties of soil so that it can be used for various constructions there is need to add the suitable admixture in soil. These admixtures should enhance properties of soil and also be economical. The foundation is very important for any structure and it has to be strong enough to support the entire structure. For foundation to be strong the soil around it plays a very important role. A review paper is presented here to focus on soil reinforcement by using shredded waste plastic products. The tests such as liquid limit, plastic limit, standard proctor compaction test, California bearing ratio (CBR) test and unconfined compressive strength (UCS) have been conducted to check the improvement in the properties of problematic soil.

"STABILAZATION OF SOIL USING PLASTIC WASTE GENERATED FROM PLASTIC BAGS AND BOTTELS"

IRJET, 2023

Extensive complexion clay soils are the types of soils in which the volume changes with respect to the change in their water content. They have a geste of swelling and shrinking that is a serious hazard to structures erected over them. Extensive soils are abundantly being soil types in Ethiopia, particularly Addis Ababa. This paper shows the issues of an attempt to supports and stabilize extensive completion clay soil with plastic bottle strips. The plastic strips were prepared and added at three different mixing ratios (0.5%, 1.0% and 2.0%) by weight and in three different aspect rates (5.0 mm × 7.5 mm, 10mm × 15mm, 15mm ×20mm). The experimental results showed that there was a significant enhancement in shear strength parameters. The lump and desiccation cracking geste of the soil were also expressively reduced. There was a substantial reduction in the optimum moisture content and slight prolifiration in the maximum dry density. Stabilizing extensive complexion clay soils with waste plastic bottles contemporaneously solves the challenges of indecorous plastic waste recycling that is presently a teething problem in at most developing countries. The results attained from this study positively suggest that addition of this material in extensive soils would be effective for ground improvement/enhancement in geotechnical engineering.

Utilization Of Bottled Plastic Waste For Strength Improvement Of Soil

2017

Due to an inefficient and faulty waste collection and transit system, a large amount of plastic waste fails to reach landfills or incinerators. Recycling plastic waste from water bottles has become one of the major challenges worldwide. The present study provides an approach for the use of plastic waste as reinforcement material in soil. To study effect of size and shape, plastic chips of different sizes (4mm x 12mm and 5mm x 15mm) had been used. A series of unconfined compression(UCC), direct box shear tests and swell pressure tests have been performed at four different percentages of fibers (0%, 0.5%, 0.75% and 1.0% by dry weight of soil) to determine stress-strain and swelling behavior of plastic waste mixed soil and the influence on plastic waste on shear strength of soil has been observed. The experimental results in the form of stress-strain response are presented. Based on experimental test results, it is observed that the strength of soil is improved significantly with addit...

A Review Literature on the Use of Waste Plastic to Improve Geotechnical Properties of Soil

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.

Reinforcement of Soil Using Recycled Polyethylene Terephthalate ( PET ) Bottle Strips

2018

As good soil becomes scarcer and their location becomes even more difficult and costlier, the need to improve its quality using innovative new technique is becoming ever more important. This research involves a study on the possible use of waste plastic bottles as soil reinforcement elements. A series of tri-axial test were carried out on three different samples of soil prepared from typical soil used for routine construction in and around Kathmandu valley. The analysis was carried out by varying the percentage of plastic used varying from 0.5% to 1.5% by weight of dry soil. The results indicate 25% to 125% increase in shear strength of soil for an addition of 0.5% to 1.5% of plastic strips by weight of soil under laboratory conditions. The primary objective of this research is to find out an effective utilization of waste plastic bottles in the geotechnical engineering application, simultaneously addressing some aspects of solids waste management without adversely affecting the nat...

Experimental Study on Soils Stabilized with Two Types of Plastic Waste

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...

Utilization of Plastic Waste in Reinforcing Sandy Soil for Sustainable Engineering Applications

2024

Large quantities of polyethylene terephthalate (PET) plastic are discarded into the environment during production, application, and disposal. Although current clean-up strategies aim to mitigate the adverse impacts of PET pollution, efforts struggle to keep up with the escalating amount of PET waste. This accumulation of PET waste poses significant threats to ecosystems worldwide. One recycling method for PET plastic waste involves its utilization in soil reinforcement applications within civil engineering. By incorporating PET plastic waste to reinforce poor-quality sands, sustainable construction practices can be promoted in civil engineering infrastructures, addressing multiple aspects of sustainability, including engineering, economic, social, and environmental considerations. The experimental work conducted in this research involved sieve analysis, proctor compaction test, California Bearing Ratio (CBR) test, and direct shear box test. The sand was reinforced with varying percentages of PET plastic waste flakes, namely 5, 10, and 15 %, with respect to the weight of the soil sample taken for the test, and laboratory tests were performed on the samples. Including PET plastic flakes enhanced various soil properties, such as shear strength and friction angle. It also improved the CBR value of the composite, making it suitable for pavement construction. The reduction in dry density further supports the application of the composite in lightweight structures. In conclusion, the geotechnical material obtained from the soil-PET plastic waste composite can be utilized in various geotechnical projects, including landfills and slope stabilization.