scholarly journals Stabilization of expansive soil by using industrial waste

2021 ◽  
Vol 2070 (1) ◽  
pp. 012238
Author(s):  
Rishav Garg ◽  
Tinku Biswas ◽  
MD Danish Alam ◽  
Aniket Kumar ◽  
Anubhav Siddharth ◽  
...  

Abstract The production of sugarcane bagasse ash (SBA), glass fiber (GF) and ceramic dust (CD) in developing countries at very large scale usually poses a severe disposal problem. The purpose of this research is to determine whether these three waste products are suitable for improving the engineering characteristics of expanding soil. The study has been carried out by varying the content of SBA (0-20%), CD (0-20%) and GF (0-4%) in black cotton soil. Optimization was carried out to find out the composition of the ideal quaternary blend. The use of these materials was found to decrease the maximum dry density and swelling of soil with increase in optimum moisture content. In addition, the liquid limit was found to decline with increment in CBR and unconfined compressive strength. The study confirms the use of these waste materials as soil stabilizers in addition to provide a solution for waste reuse.

we have done some experiments on black cotton soil to strengthen the soil. Black cotton soil is very expansive soil so it is not used under basements for any building works. So our experiment shows that how to use black cotton soil in building purposes. So that we have done researches on adding lime and pond ash to make useful of black cotton soil.Changes in various soil properties such as Liquid limit, Plastic Limit, Maximum Dry Density, Optimum Moisture Content were studied. Keywords– Black cotton soil, density, will lime, soil, and stabilization. So we have done the some mixed proportions of 10%, 15% and 20% of pond and lime. So we utilize the waste material which comes from the thermal power plant. By that we can decrease the rate of expenditure for the construction of roads Based upon the performance of the test such as standard proctor test and other to know the required amount of the material to stabilize the black cotton soil.


2021 ◽  
Vol 42 (3) ◽  
Author(s):  
Sara Mansouri ◽  
Mehran Nasiri ◽  
Amir Modarres

Many pozzolans are waste products from industrial processes. Every year a huge amount of coal waste is gathered from the coal washing plant in the Hyrcanian forests of Iran. These materials can be used for soil stabilization in construction and maintenance projects of forest roads. This paper aims to (a) investigate the role of coal waste (CW) as a soil stabilizer and (b) determine the changes in soil specification regarding the environmental pollution in different combinations of materials (soil, lime (4 and 6%) and CW (3, 6, 9 and 12%)). For this purpose, different technical and environmental analysis and laboratory tests were performed. Technical tests showed that the soil liquid limit and maximum dry density decreased with an increase in lime and CW contents. Addition of CW could increase the soil CBR, UCS and OMC. According to XRD test, the addition of CW and lime can increase the size of crystals in stabilized soil samples. Environmental analysis showed that the use of stabilizer significantly reduced the concentration of heavy metals such as Cd, Cr and Pb. Also, all of the metal concentrations leached from samples satisfied the required criteria, but the addition of lime and CW increased the concentration of N, P, and K. These changes can increase the invasive species consistent with calcareous soil conditions along the roads. According to the results, the combination of coal waste and lime can be one of the best methods for in situ remediation. It would, however, be better to use a minimum amount of stabilizer in pavement layers of access roads due to environmental sensitivity.


Black cotton soils of India are categorized as expansive soil due to Montmorrilonite mineral. Replacement of expansive soil with non expansive material, then transport longer distance causes environmental degradation and uneconomical Stabilization of clay soil is more effective and eco-friendly option when the soil is used for construction purpose. Stabilization is the process of improving the properties of soil by changing its gradation. Expansive soil is with varies additive, makes an improvement of connections between granules and reduces the expansibility and contractility of soil Californiaa Bearing Ratio (CBR) is a measure of resistance of a material to penetration of standard plunger under controlled density and moisture conditions. Stronger the subgrade lesser the thickness of road pavement layers, and hence reduction cost of project. In this work attempt has been made to understand to estimate the effect of stabilizer on liquid, plastic limit Maximum dry density and optimum moisture content properties of black cotton soil, in order to determine the suitability of stabilizer in the treatment of black cotton soil for sub grade stabilization in road construction. Main objective of the present study was to develop regression based model for estimating CBR, considering other properties of a soil so that developed models were used to predict the CBR from other properties. It has been observed from lab test stabilizer alter the properties of soil by reduce the plasticity characterstics and imprve load carrying capacity. Rrgression analyis shows that good aggrement with experimation results.


2021 ◽  
Vol 6 (2) ◽  
pp. 044-050
Author(s):  
Tsion Mindaye ◽  
Emer Tucay Quezon ◽  
Temesgen Ayna

Expansive soil swells when it is wet, and it will shrink when it dries. Due to this behavior of the soil, the strength and other properties of soil are inferior. To improve its properties, it is necessary to stabilize the soil with different stabilizers. Soil stabilization is a process to treat the soil to maintain, alter, or improve expansive soil performance. In this study, the potential of 'Fino' as stabilizing additive to expansive soil was investigated for the improving engineering properties of expansive soil to be used as subgrade material. The evaluation involved the determination of the Free Swell test, CBR test, Atterberg's limits, and the Proctor test of expansive soil in its natural state as well as when mixed with varying proportions of 'Fino.' The practices were performed on six proportions 5%, 10%, 15%, 20%, 25% and 30 % with expansive soil. The research result indicated a considerable reduction in Swelling, and the Maximum dry Density of soil was improved. Optimum moisture content decreased in increasing 'Fino.' At 30% of 'Fino,' the CBR values of expansive soil increased from 1.06% to 5.94%, Liquid Limit decreased from 95.2% to 29.4%, plasticity index decreased from 57.24% to 17.82% and the degree of expansion of the natural subgrade soil has reduced from "very high to medium." Hence, it is concluded that the 'Fino' at 30% has shown significant improvement in the expansive soil's engineering properties meeting the ERA and AASHTO Standard specifications requirements for road subgrade material.


Soil Stabilization is one of the modern techniques for modification of soil which are using in our daily life in construction. Due to increase in population land is also getting scarce so we need to build in the available area. So this technique we use is called Soil stabilization or modification of soil. As we know that some of the soils are not useful for construction. As a result while constructing pavements like national highways (NH) we should definitely build the pavement on soils like black cotton soil by improving its strength because the original nature of the soil will have poor bearing capacity and less strength. So by adding admixtures from Industrial wastes such as Ground granulated blast furnace slag(GGBS) which is the waste of iron ore i.e., in powder form and Lime which will increase the bearing strength of the soil, So that it will also increase the pavement design over long period of time which is the ultimate goal for the design of the pavement or any other construction purpose. So by adding these admixture using the industrial waste which is available in a low cost so that we can easily improve the strength of the soil because of the availability of admixtures in economy. After adding the admixtures Soil should be tested by some basic tests of U.C.C (Unconfined Compressive Strength) and also California bearing test (CBR) and also some basic tests like MDD (Maximum Dry Density) & OMC (Optimum Moisture Content), Plasticity index and liquid limit etc.., should be carried out in order to test the improved strength of the soil.


The Population Is Increasing Day By Day So That No-Of Construction Activities Are Increasing Daily Which Turning The World Into A Concrete Jungle. The Need For Land Is Increasing For Construction Purpose. Black Cotton Soil Is Belonging To One Of The Major Soil Deposits In India. The Nature Of The Black Soil Is Highly Expansive. Its Nature Varies According To Moisture Present In The Soil. It Will Expand In The Presence Of Water And It Will Contract In The Absence Of Water. Due To This Nature, It Becomes A Very Danger To Construct A Structure In This Type Of Soils. It May Leave Severe Damage To The Foundation And Superstructure. Many Stabilization Methods Are Improved To Overcome This Problem. This Experimental Study Was Done One Black Cotton Soil To Improve Its Characteristics By Adding Admixtures Like Quarry Dust And Lime. Various Properties Like Liquid Limit, Plastic Limit, Maximum Dry Density, Optimum Moisture Content And California Bearing Ratio Were Studied By Adding Admixtures To The Black Cotton Soil. Experimental Study Shows An Effective Increase In Properties Of Black Cotton Soil. With The Help Of Studying Different Literature Papers, It Was Found That Black Cotton Soil Which Is Replaced With Quarry Dust Above 10% Shows Some Increase In Properties. Whereas For Lime It Is In Between 2% To 6%.


Soil stabilization is the process which involves enhancing the physical properties of the soil in order to improve its strength, durability etc. by blending or mixing with additives. The different types of method used for soil stabilization are: Soil stabilization with cement, Soil stabilization with lime, Soil stabilization using bitumen, Chemical stabilization and a new emerging technology of stabilization by Geo textiles and Geo synthetic fibres. In this study, we are making use of Jute and Coir fibre as geo synthetic material for stabilization of soil. With the introduction of Jute and Coir fibres to the soil the CBR values will improve and thickness of pavement layer also gets reduced. It also reduces the intensity of stress on subgrade. Jute and Coir fibres are such a geo synthetic material which is easily available, eco friendly and also cost-effective. With the application of soil stabilization method in construction the overall cost gets reduced when compared to the ordinary method of construction. To determine the Liquid limit using Casagrande Method, Plastic limit by rolling the sample to 3mm diameter thread, Optimum Moisture Content and Maximum Dry Density using Standard Proctor Test, Unconfined compression test and also California Bearing Ratio by conducting CBR test.


2021 ◽  
Author(s):  
Emer Tucay Quezon ◽  
Tsion Mindaye

Expansive soil swells when it is wet, and it will shrink when it dries. Due to this behavior of the soil, the strength and other properties of soil are inferior. To improve its properties, it is necessary to stabilize the soil with different stabilizers. Soil stabilization is a process to treat the soil to maintain, alter, or improve expansive soil performance. In this study, the potential of 'Fino' as stabilizing additive to expansive soil was investigated for the improving engineering properties of expansive soil to be used as subgrade material. The evaluation involved the determination of the Free Swell test, CBR test, Atterberg's limits, and the Proctor test of expansive soil in its natural state as well as when mixed with varying proportions of 'Fino.' The practices were performed on six proportions 5%, 10%, 15%, 20%, 25% and 30 % with expansive soil. The research result indicated a considerable reduction in Swelling, and the Maximum dry Density of soil was improved. Optimum moisture content decreased in increasing 'Fino.' At 30% of 'Fino,' the CBR values of expansive soil increased from 1.06% to 5.94%, Liquid Limit decreased from 95.2% to 29.4%, plasticity index decreased from 57.24% to 17.82% and the degree of expansion of the natural subgrade soil has reduced from "very high to medium." Hence, it is concluded that the 'Fino' at 30% has shown significant improvement in the expansive soil's engineering properties meeting the ERA and AASHTO Standard specifications requirements for road subgrade material.


2018 ◽  
Vol 2 (1) ◽  

The objective of the present study was to understand the effect of calcium chloride on geotechnical properties of black cotton soil. Black cotton soil collected from Siraguppa taluk, Bellary. It was subjected to various concentrations of calcium chloride viz. 0.1 N, 0.5 N, 1.0 N, 2.0 N and 4.0 N. Attempt was made to understand the effect of calcium chloride on index properties and engineering properties of black cotton soil. It was observed that the values of liquid limit, plastic limit and plasticity index of the soil treated with calcium chloride was decreasing with increase in concentration. Further the treated soil was investigated for compaction test. It was observed that the maximum dry density of the soil was increasing at higher concentrations. However, no remarkable changes were observed in the values of optimum moisture content with increase in concentration of calcium chloride. The laboratory investigation was made to obtain the unconfined compression strength (UCS) of treated soil. The soil was cured for 1 day, 7, 14 and 28 days. It was observed that the values of UCS were increasing with increase in concentration at any curing period. The soil was further tested to obtain the effect of calcium chloride on permeability of treated soil. It was observed that the permeability is increasing with increase in concentrations of 0 N, 0.5 N, and 4.0 N.


2020 ◽  
Vol 857 ◽  
pp. 367-373
Author(s):  
Yahya K. Atemimi

The interest in expansive soils goes as far as they were considered as a new phase of soil mechanics. Problems associated with potential volume change of soils occur worldwide, mainly in the arid and semi-arid climatic region, as is the case of the country of this research. These problems are particularly existed in regions where the variation in the moisture content can cause a potential expansiveness of the soil. In fact, Bentonite/Sand mixture represents one of the available answers for the geotechnical engineering problems such as heaves, cracks and other damages caused by swelling and shrinkage. This mixture may be used to 1) reduce the settlement time of structures, and 2) increase the permeability of soils. The main target of the present work is to demonstrate the influence of adding sand on an expansive soil (bentonite) behavior. This includes an investigation to the effect of the amount and the particles size of sand on the physical properties of the expansive soil. The reduction in swelling and swelling pressure of the expansive soil by the addition of different percentages and different particles size of sand and the consequent effect on strength characteristic were also studied. Thirteen samples of Bentonite/sand mixture were used in this study to evaluate the effect of the sand percentages on the swelling behavior. To implement the laboratory program, many tests were used which were sieve analysis, Atterberg’s limits, compaction, and free swelling test with swelling pressure test. The results indicated a reduction in the liquid limit of around 55% and in the plastic limit of around 54%, where the increase in the maximum dry density was 46%. On the other hand, the reduction in the swelling pressure was 87.5%.


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