Dr. AYUSH MITTAL

Scopus Publications

Lightweight Concrete by Using Waste Materials
Ayush Mittal, Akhilesh Singh, Aman Kumar Chaudhary, and Avinash Kumar
Springer Nature Singapore

A review on use of coir fibre in road construction
Shivani Shukla, Shalinee Shukla, Ayush Mittal, and Tanu Singh
Elsevier BV

Effect of jute fibre reinforcement on strength, thickness and cost of low-volume rural roads
Shalinee Shukla and Ayush Mittal
Elsevier BV

Stabilization of subgrade with expansive soil using agricultural and industrial By-products: A review
Priyanka Mishra, Shalinee Shukla, and Ayush Mittal
Elsevier BV

Review on Suitability of Rice Husk Ash as Soil Stabilizer
Ayush Mittal, Shalinee Shukla, and Sonu Verma
Springer Singapore

Application of Non-woven Polyester Geotextile for Soil Improvement in Pavements
Shalinee Shukla, Ayush Mittal, R. P. Tiwari, and Kshma Gupta
Springer Singapore

Improvement in Soil Subgrade Using Natural Fibre (Kenaf and Coir Fibre)
Shalinee Shukla, Ayush Mittal, and Sunit Kumar
Springer Singapore

Effect of rice husk ash and stone dust on selecting engineering properties of poor subgrade soil

Soil subgrade stabilization using non-woven polypropylene geotextile
Ayush Mittal and Shalinee Shukla
Springer Singapore
Roads are the quintessential component for the social as well as economic upliftment of a country. Our country has a total road network of greater than 60 lakh kilometers of which 79% consists of rural roads. Around 20% of land area of our country is covered with the kind of soils having low shear strength and California bearing ratio (CBR) values. The pavement which is constructed over such soils deteriorates significantly under heavy wheel load which leads to substantial enhancement in maintenance and construction costs. To overcome such situations the soil reinforcement techniques have to be resorted to as replacement and removal of soil would lead to heavy economic liability. In this work, an attempt was made to study the effects of non-woven synthetic geotextile on the strength behavior of the soil. The geotextile was placed in single as well as multiple layers from the top of mold at different depths in soil subgrade and optimum moisture content (OMC), maximum dry density (MDD), soaked CBR, and unconfined compressive strength (UCS) values were determined experimentally. Multiple linear regression models were developed for predicting soaked CBR and UCS. Maximum improvement of 66% in CBR and 45% in UCS was reported when the soil sample was reinforced with double-layer geotextile (i.e., 25 mm and 50 mm).

Effect of geogrid reinforcement on strength, thickness and cost of low-volume rural roads

Effect of random inclusion of kenaf fibres on strength behaviour of poor subgrade soils

Effect of geosynthetic reinforcement on strength behaviour of weak subgrade soil
Ayush Mittal and Shalinee Shukla
Trans Tech Publications, Ltd.
The performance of flexible pavement depends mainly on the subgrade soil characteristics as it serves as a foundation for pavement. Roads constructed over poor subgrade soil fails frequently leading to heavy economic burden apart from high initial cost of construction. In order to overcome these problems soil reinforcement technique has to be adopted. The use of geosynthetic material is a new and emerging technique and is gaining importance due to cost and time saving apart from less environmental sensitive nature. In the present study an attempt has been made to make use of non-woven geotextile and biaxial geogrid in various combinations. The geogrid was placed above geotextile, both in layers from the top of mold and heavy compaction, soaked CBR and unconfined compressive strength (UCS) tests were performed. Scanning electron microscopy (SEM) images indicate significant bonding between soil particles and geogrid surface.

Remediation technologies-a comparative study
Ayush Mittal and Shalinee Shukla
Trans Tech Publications, Ltd.
Contaminated land is a legacy of industrial revolution as a result of rapid growth of industries. Since long back, the disposal of liquid and solid wastes on land though undesirable, has been in practice. The leachate generated out from these hazardous wastes infiltrates into the ground and causes multiple problems viz., ground water pollution, soil pollution, loss of nutrition value of soil and thereby severe damage to plantation growth, changes in the soil behavior (excessive swell/shrink) depending on the nature of waste. It also causes serious distress to the existing structures such as pavements, foundations, underground pipelines and culverts. The changes in the soil behaviour caused by ground contamination can lead to structural failures. The present paper describes various physical, chemical, biological, thermal and solidification/stabilization methods of soil and ground water remediation and their comparison on the basis of applicability, time and cost.

Strength improvement of poor subgrade soil reinforced with polyester biaxial geogrid

Use of jute geotextile in strength enhancement of soft subgrade soil
Shalinee Shukla, R. P. Tiwari, Vaishali Rajbhar, and Ayush Mittal
Springer Singapore
Construction of pavement on soft or weak soils is highly unsecure since such soils have low shear strength and California bearing ratio (CBR), high compressibility, liquefaction potential, and differential settlement. In India, more than 20% land area is covered with such type of soils. The pavement constructed over such soils will deteriorate significantly under heavy wheel loads, leading to substantial increase in construction and maintenance costs. In order to overcome such problems, some soil reinforcement technique has to be adopted because removal and replacement of soil will lead to heavy economic burden. Therefore, in the present investigation, open weave jute geotextile is chosen as the reinforcement material. The geotextile is placed in single and multiple layers at various depths from top of mold, and heavy compaction and soaked CBR tests are conducted. The test results indicate improvement in maximum dry density (MDD) for all reinforced cases as compared to virgin soil. Increase in CBR is observed for all single and double layer reinforced specimens and for one triple layer reinforced case. Maximum improvement of 54, 102, and 52%, respectively, is reported when geotextile is placed in single layer at 0.2H depth, double layer at 0.2H and 0.4H depths, and triple layer at 0.2H, 06H, and 0.8H depths from top of specimen, whereas it decreases even below to virgin soil value for four layers reinforcement. Thus, it can be concluded that jute geotextile can be effectively used as reinforcement material which not only boosts rural economy but also contributes in carbon foot print reduction to a great extent.

Dr. AYUSH MITTAL

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