Thirumalini Selvaraj

Thirumalini Selvaraj
VIT University | VIT · School of Civil Engineering

Doctor of Philosophy

About

60
Publications
64,650
Reads
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556
Citations
Citations since 2017
53 Research Items
527 Citations
2017201820192020202120222023050100150
2017201820192020202120222023050100150
2017201820192020202120222023050100150
2017201820192020202120222023050100150
Introduction
Working in field of conservation and restoration of heritage structures. Strength and durability studies on traditional materials. Characterisation of ancient mortars
Additional affiliations
June 2016 - October 2018
VIT University
Position
  • Professor (Associate)

Publications

Publications (60)
Article
Full-text available
This paper investigates the use of non-metallic portion (NMP) reclaimed from e-waste (i.e., waste printed circuit board—PCB) as replacement of natural sand in the blended cement concrete by using Metakaolin (MK) as supplementary cementitious material for its effect on the mechanical, durability, microstructural, and mineralogical properties of conc...
Article
The scientific investigation performed on the different mortar typologies of the Padmanabhapuram Palace mortars in a previous study led to the formulation of a similar traditional mortar. The outcome of the study was an increase in the carbonation action and mechanical strength of the mortar compared to conventional lime mortar, primarily due to th...
Article
Full-text available
Throughout history, many water conservation and management strategies have been employed, but only a few have proved successful. Stepwells were one such effective water management technologies used in India. Stepwells were constructed based on their geographical and topographical suitability, which revealed socio-cultural behaviors and beliefs. The...
Article
Full-text available
This paper presents the analytical characterization study on 10 tof century seenakesavaperumal temple, Yelagiri, Tamilnadu. The samples from the temple were extracted from walls from, the inner sanctum, brick masonry mortar, and cement mortar at the specific spots on avoiding structural damages under the Hindu religious and charitable endowment gov...
Article
Laser-Induced Breakdown Spectroscopy (LIBS) micro-mapping is an important analytical tool for the study of geomaterials. In this work, this technique was applied, for the first time, to the analysis of alkali-activated materials and geopolymers, as well as rocks, mortars and bricks. The results obtained were compared with the ones obtained using En...
Article
The study explores the effective role of fermented plant extracts in hydraulic lime mortars towards the bacterial precipitation of calcium carbonate. Two frequently used plant extracts that are rich in carbohydrates, jaggery (unrefined sugar) and kadukkai (Terminilia chebulia) are fermented with and without lime for seven days in semi aerobic condi...
Article
Full-text available
The present study characterizes mortars from Thanjavur Palace (Thanjavur, India) to illustrate ancient production methods and the raw materials used. The mineralogical-petrographic composition of mortars was determined using optical microscopy, supported by scanning electron microscopy with energy-dispersive spectroscopy and X-ray powder diffractio...
Article
Coal-based thermal power plants play a pivotal role in meeting global energy demand. The amount of fly ash generated from these plants increases every year, and its successful use has posed a significant environmental risk in the last decade. In this study, coal fly ash was packed in a fixed-bed adsorption column to remove Urea–N from synthetic hum...
Article
Full-text available
The study aims at preparation and characterization of six organic lime putty (hydraulic Lime + fermented plant extract) using regionally available plants namely Terminalia Chebula (kadukkai), Rosa Sinensis (hibiscus), Palm jaggery (refined sugar), Xanthorrhoeaceae (aloe vera), and Indigofera Tinctoria (neelamari) as per the methods given in the anc...
Article
Full-text available
Water is the most valuable resource available on earth. Although it is present in abundance, its usable volume is very scarce. This is the reason behind the existence of both floods and droughts around the world. However, human settlements face water scarcity issues that are primarily engendered by improper town planning measures. To create a balan...
Book
Full-text available
Stones surfaces and elevated architectural grillworks of historic buildings, due to their predominantly outdoor location, suffer from deterioration factors, including air pollution, soluble salts, relative humidity (RH)/temperature, biodeterioration and by shelling in 1914. The durability and longevity of the structure can be enhanced on proper res...
Article
This study presents the experimental and analytical modelling of externally bonded glass fibre-reinforced polymer (GFRP) sheets for strengthening circular steel tubular short columns. The GFRP sheets are easy to handle due to the lightweight property and the high-strength can provide a degree of restraint to delay buckling of the thin steel wall. F...
Article
Full-text available
The present scenario on the rapid globalization and industrial use of natural resources across the globe has made this investigation to benefit on the utilization of crushed limestone (LSM) and shell lime (SLM) as aggregate substitutes to conventional lime mortar. Physio-chemical and modern analytical methods like XRD, TGA, FT-IR and strength test...
Article
Full-text available
Lightning is one of the inevitable disastrous phenomena which in addition to damaging tall edifices, might also consequently endanger humans due to lightning-human interactions. This research focuses on analyzing lightning hazards to humans in the vicinity of heritage monuments in India and Sri Lanka. Five monuments which include three giant stupas...
Article
Full-text available
This research aims at providing the scientific evidence of ancient construction practice and production technology on the use locally available geoearth materials and natural herbs, namely kadukkai (Terminalia Chebula), neelamari (Indigofera tinctoria), hibiscus (Rosa sinensis), palm jaggery (Borassus flabellifer), aloe vera (Aloe barbadenis) as sp...
Article
This research aims to study the influence of organic additive and aggregate grain size in lime mortar hardening for producing compatible, high-performance and eco-friendly materials for conservation and restoration of heritage structures. Mortar mix with lime to sand ratio of 1:3 by mass and water to binder ratio of 0.75 was considered. Ficus Caric...
Article
Full-text available
In the present research, characterization of ancient lime mortar from the 300-year-old Renukadevi Temple at Chandragutti, Karnataka, India, was carried out to propose an appropriate repair procedure for fixing a water leakage through the roof slab. The reason for the water seepage was a poor binder with the aggregate, with a ratio of 1:7. When the...
Article
This investigation is on the terracotta sample taken from the terracotta ring well expected to be built during the early historic period, excavates at Pattaraiperumbudur, Tamil Nadu, India. The study included heritage, architectural as well the civil aspects of the well. The sample was examined using Optical microscopy, Field Emission-Scanning Elec...
Conference Paper
Full-text available
The article reviews the application of soil living bacteria in concrete. Formation of cracks and subsequent degradation in concrete are the critical durability phenomenon. For protection against cracking, the repair and regular maintenance by traditional methods are found to be costly. Taking notes from biomimicry and biotechnology in concrete from...
Article
The development of sustainable building materials is essential in view of meting worldwide requirements of the green and sustainable economy; this aspect is crucial in cement concrete, in which commercial demand is increasing day by day. Superior quality concretes can be produced by using natural additives, such as biopolymers, being them harmfully...
Article
Printed circuit boards (PCB) contain metallic and non-metallic fractions (NMF) that are hazardous and toxic when disposed of in a landfill. This paper emphasizes the feasibility of using NMF reclaimed from waste PCB's as a replacement to fly ash (FA) and metakaolin (MK) in a geopolymer mortar. Geopolymer mortar mixes were prepared with five FA-MK r...
Article
Full-text available
Lightning strikes are prevalent and inevitable natural phenomena that might cause damages during interaction with building structures and, in some cases, culminate in fires. During the last decades, several lightning strikes have caused considerable damages to cultural and heritage buildings. Furthermore, recent studies indicated a plausible connec...
Article
This study focuses on determining the possible interaction of organics like kadukkai (terminalia chebula) and jaggery (unrefined sugar) with an inorganic lime mortar using chemical analysis, organic analysis, and analytical techniques such as XRD, FT-IR, TGA, and SEM. It is due to the materials present in organics that various properties of lime mo...
Article
Full-text available
Abstract During the Classical Period (300 BC–400 AD), the Indian Ocean emerged as one of the largest hubs of ancient international trade. For a long period, these contacts were described from a Rome-centric point of view, looking at the connections between Rome and India. However, recent studies have demonstrated that the Roman-Indo connection was...
Article
The characterization of limecrete slabs made of plant extract and hemp fibers of an old monument, Bichili haveli, located in Udaipur, Rajasthan, India was carried out to understand the traditional materials used and its production. Limecrete of ratio 1: 1: 3 (Lime: brickbats: sand) were produced with hemp fibers to acts as flexural members. The har...
Article
Full-text available
Abstract This research is part of a wider scientific Italian-Indo project finalised to shed lights on pottery fabrication and trade circulation in Tamil Nadu region during Early Historical Period. The recent archaeological excavations carried out in Alagankulam—a famous harbour trading with the eastern and western world—and in Keeladi—the most anci...
Preprint
Full-text available
This research is part of a wider scientific Italian-Indo project aiming to shed lights on pottery fabrication and trade circulation in the South India (Tamil Nadu region) during Early Historical Period. The recent archaeological excavations carried out in Alagankulam, a famous harbour trading with the eastern and western world, and Keeladi, the mos...
Article
This research work aims at studying the influence of fermented organic additive on strength and carbonation of air lime mortar for the conservation of heritage structures. Binder to aggregate ratio of 1:3 by weight and water to binder ratio of 0.7 were considered. Red grape (Vitis vinifera) as an organic additive with 2, 4, 6, 8 and 10 percentages...
Article
Full-text available
Lightning is one of the most commonly occurring natural phenomena which causes irrecoverable damage to edifices which include monuments that uniquely showcase global heritage. Most monuments are usually built tall since these signify symbols of victory, whereby invariably becoming vulnerable to lightning. Though several researchers have implemented...
Article
Conservation of ancient buildings to make them long lasting is gaining importance. Lime mortars, which exhibit better strength and durability with progression over time, are used for this purpose. This study emphasizes the effect of adopting the traditional method of slaking and adding a natural polymer extract derived from Bilwa fruit. Lime mortar...
Article
Full-text available
The role of organics in ancient mortars of Thanjavur palace was characterized through wet chemical analysis, biochemical tests and sophisticated techniques (XRD, FESEM, FT-IR). All the analytical techniques confirm the presence of all the polymorphs of calcium carbonate with vaterite as a major mineral followed by calcite and aragonite minerals. A...
Chapter
Health monitoring of composite structures used in the aerospace have been reviewed and emphasized that strength, stiffness, yield capacity, bendability, and resistance against corrosion, impact, lightning, and fatigue due to cyclic loading influence on durability of composite structure. In this chapter, four different stages involved in structural h...
Chapter
Monitoring of structures using recent advances and trends in structural health monitoring has been reviewed and emphasized. In this chapter, benefits of implementation of SHM, such as enhancement of public safety, early risk detection, improvement in the life span of the structure, and decrease in the capital expenditures involved, are discussed. Th...
Article
Full-text available
The experimental investigation was carried out to study the variation in strength and durability properties of high strength concrete incorporated with sisal, banana and coir fibres. In this study, three different percentage 0.5%, 1% and 1.5% by volume of sisal, banana and coir fibres were casted and results compared with control mix. The strength...
Conference Paper
Full-text available
Lime is one of the oldest construction material and it shows greater durability properties. The main aim of the study is to analyse the organic modified lime mortars used as bedding and plastering mortar at Sacred Groves, Auroville Pondicherry, India. Locally available organics namely kadukkai (Terminalia chebula) and jaggery (Unrefined sugar) were...
Article
The present study has been taken up to analyse the ancient plasters at Charminar, Hyderabad, India for the effective conservation of the historic monument. The plasters were characterized adopting physicochemical analysis as well as modern analytical techniques including XRD, TGA with DTA, SEM and Infra-Red methods (FT- IR). The binder is calcium r...
Article
The modification in lime mortar to preserve the historic structures is the growing trend in current scenario. The natural polymer, areca nut extract in concentrations of 3% and 5% was incorporated in the lime mortar to modify the fresh and hardened state properties. The microstructural analyses of the modified mortar were studied by X-ray powder di...
Article
The tradition of using lime as a binder has been in practice over the centuries and is cited in the architectural feats of all kinds of civilizations. Besides the basic ingredients of lime, sand and water, organic admixtures were also mixed into the mortars to modify fresh and hardened state properties as well as to enhance its durability. The moti...
Article
A characterization study on lime mortar samples from the Subramanya Swamy temple, Saluvankuppam, rediscovered after the 2004 tsunami, was carried out to understand the raw materials used and the application technology. The binder is air lime with binder to aggregate ratio of 2:3. Calcitic crushed sea shells along with siliceous river sand were used...
Article
Influence of organic addition in the lime matrix on its mechanical and physical properties has been investigated. Results revealed that addition of organics in the lime matrix enhances the mechanical properties of the mortar significantly as it improves the binding strength between two consecutive lime particle in the mortar. Physical property resu...
Article
Influence of natural additives on mechanical and physical properties of hydraulic lime mortar has been investigated experimentally. Results revealed that organically modified lime mortar enhances the compressive strength significantly as it improved the bond between two consecutive lime particles in the matrix. Results also reflected that organical...
Article
Influence of reinforcement effect on mechanical properties of banana bio fiber polyester has been investigated. Three different type of weaving patterns such as plain, basket and twill banana fabric were used to analyze the mechanical properties of composites. Results revealed that composite with basket weaving style enhances the properties of comp...
Conference Paper
Full-text available
Lime mortar samples from ancient walls in and around padaleeswarar temple have been analysed by traditional methods and analytical techniques. The binder is shell lime (hydraulic) with clay minerals and binder to aggregate ratio was in the range of 1:2. Organic test indicates the presence of carbohydrates and protein and in par with FT-IR. All the...
Article
Full-text available
The study was carried out to find the role of organic gums from Drumstick (Moringa Oleifera), Badam (Prunusdulcis), Kikar (Vachellia Karroo) trees on cement and lime paste. Organic tests were conducted on the gum to unearth the amount of proteins, fat and carbohydrate. All gums does not contain fat with around 1% protein. Drumstick contains highest...
Article
Full-text available
In the present study, lime mortar samples from the restoration site of Vadakumnathan temple, Kerala, India have been analyzed. Samples from three different locations of the temple such as ancient wall, gopuram and arch have been taken. Traditional methods such as chemical analysis, acid loss analysis and organic test were conducted on mortar sample...
Article
Full-text available
Many successful and long lasting structures that contain lime mortars are hydraulic in nature. Organic admixtures are added to lime mortar mix to modify their fresh and hardened state properties. The present work proposes plant extract as bio-admixture for repair mortar towards the protection of heritage structures. The effect of Cactus extract on...
Article
Full-text available
The focus of the present study is to bring the technical skills involved in the preparation of bio-inorganic or traditional herbal lime mortar in field and standardizing the preparation of repair mortar under controlled conditions for restoration works for heritage and historical monuments. Vadakkunnathan temple in Kerala is one such built heritage...
Article
Full-text available
The study aims at establishing the correlation ratio between Total Dissolved Solids (TDS )and Electrical Conductivity ( EC ) for natural waters such as fresh water , sea water and tender coconut .The EC value can be obtained from in situ conductivity measurements since it is quick reliable and relatively of low cost . Twenty four fresh water , fift...

Questions

Question (1)
Question
i would like to write a new paper articel about mayan concrete and traditional organic lime concrete in India . I Need your help and it can be a joint publication
Kindly respond me over my mail Id thirumalini.selvaraj@vit.ac.in

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