International Research Journal of Engineering and Technology (IRJET)
e-ISSN: 2395-0056
Volume: 09 Issue: 12 | Dec 2022
p-ISSN: 2395-0072
www.irjet.net
Geotechnical Characteristics Of Red Mud As A Subgrade Material Stablized by RHA AND Ground Grainated Blast Furnace Slag Faisal Mushtaq Sheikh1, ER.Sonia2 1M.tech
student in Desh Bhagat University punjab Professor,Dept.of civil Engineering Desh Bhagat University punjab, India ---------------------------------------------------------------------***--------------------------------------------------------------------restrictions on the use of some naturally available Abstract - A huge amount of wastes and other by2Asst.
resources compel us to utilise the industrial wastes, which also leads to the sustainable development. The waste materials negatively affect the environment having consequences on natural assets and living creatures. In India a huge number of construction undertakings are going on demanding a large quantum of adequate materials. The use of waste materials in different construction activities results in minimising the use of natural resources, besides reducing the environmental nuisance. There has been an amplifying interest in researchers to investigate and study the engineering characteristics of these large scale wastes, so as to use them as alternate construction materials.
products are produced annually by industrial, commercial and other human activities. The generation of this huge amount of wastes pose different problems related to their safe disposal and management. Rapid development and shortage of natural and conventional materials compel us to utilise the industrial wastes as their replacement in different engineering works. This approach of utilising wastes as alternate materials also leads to sustainable development.
Red mud, rice husk ash and ground granulated blast furnace slag are the industrial wastes which are having a reasonable potential in construction works when utilised properly. Red mud is generated as a by-product during refining of alumina from bauxite ore. The approximate annual global production of red mud is 75 mt out of which India produces around 9-10 mt accounting nearly 5% of the total production. There exists a global stock of more than 3 billion mt of red mud. The aim of current study is to view the suitability of red mud as a subgrade construction material by stabilising it with RHA and GGBS. RHA and GGBS acts as a pozzolanic material and enhance the properties of RM making it advantageous and a suitable material.
Aluminium is mainly produced from bauxite ore by Bayers process. Approximately 6-7 tons of ore is processed to produce about 2-2.5 tons of alumina. Most of the alumina present in ore is dissolved leaving behind an insoluble residue known as bayers residue or red mud. Disposal of these large scale residues is a challenging job for alumina refineries. Red mud mainly consists of iron oxide along with silica and other minor elements. The global production of red mud is about 75mt/annum out of which Indias contribution is approximately 9-10 mt/annum which accounts about 5% of the total global production.
Key Words: Rice husk , Alminia ,Red mud ,slag etc 1. INTRODUCTION
1.1 LITERATURE AND REVIEW
This In the recent past industrial sector, mainly the processing and manufacturing industries faced the major challenges regarding the disposal of different waste materials produced. The main contributers towards the production of toxic wastes is the extractive metallurgy including ore-dressing and mineral processing. In the recent past industrial sector, mainly the processing and manufacturing industries faced the major challenges regarding the disposal of different waste materials produced. On the other hand, the rapid development demands more materials and other assets. In the recent past there has been a huge shortage of naturally available materials and other assets for the ongoing construction and development activities. The rapid depletion of naturally available materials and resources is a cause of concern. Shortage of these materials, regulations and
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BeforeK SATESH BABU, N G REDDY ET AL (2018) investigated the compaction characteristics of red mud(RM) admixed with lime and GGBS (Ground Granulated Blast Furnace Slag). It was observed that RM shows a range of dry density values. This susceptibility decreases considerable when admixed with lime or GGBS. The lime content was increased from 1% to 15% while as GGBS was added incrementally from 10% to 40%. From the results it was found that 2% lime and 25% GGBS is sufficient and most favourable for persistant and reliable results. It was concluded that RM can be used as a potential construction material for subgrade or embankments.
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