Institute of Technology

Prof. Sonal Pragnesh Thakkar

Prof. Sonal Pragnesh Thakkar

Total Experience 27 Year
Educational Qualification M.E. (Structural Engineering). Pursuing PhD
Research Area Concrete Technology, Geopolymer concrete, Sustainable building materials
General information
Designation Assistant Professor
Office Phone 07930642260
Cabin No 07930642260, Ext. 260

Prof. Sonal Thakkar is currently working as Assistant Professor in Civil Engineering Department, Nirma University. She has done her Bachelor degree in Civil Engineering from Birla Vishvakarma Mahavidyla in 1993. She completed her Master Degree in Structural Engineering from M.S University Baroda in 1996. She is currently pursuing in Doctrol degree from Nirma University. She has more than 4.5 years of industrial experience and over 20 years of teaching experience . She is involved in teaching Design of Structures, Engineering Mechanics, Earthquake Resistant Design and Concrete Technology at Under graduate level and at Post Graduate level she has taught Structural dynamics, Earthquake Engineering, Structural Failure Evaluation and Strengthening and Advance Material. She has guided 9 M.Tech CASAD thesis. She is currently working in area of sustainable development and geopolymer concrete. She has presented large number of papers in National and International conference. She was felicitated for guiding Best B.Tech Project titled " Effect of alkaline activator on mechanical strength of geopolymer mortar" in 18th ISTE Students National Annual Convention, 2015.

Current Activities : engaged in Departmental timetable activities, Central Time Table coordinator
Teaching 22 Year 9 Month
Industry 4 Year 6 Month
Website -
Blog -
Membership Life Member of ISTE, Life Member of INSDAG, Life member of ACI- India Chapter, Life member of GICEA, Life member of IRS

Specialization Areas Geopolymer concrete, Concrete Technology, Structural Engineering
Subject Taught UG Earthquake Resistant Design, Maintenance Repair and Rehabiliation, Design of Structures I and II, Concrete Technology, Structural Mechanics, Engineering Mechanics
Subject Taught PG Structural Failure Evaluation and Strengthening,Earthquake Engineering, Structural Dynamics

Painting, cooking and reading

Prof. Sonal Pragnesh Thakkar - Achievements

TitleDescriptionAchieved On
Entrepreneurial Drive, a Business Model Competition Entrepreneurial Drive, a Business Model Competition was held in Nirma University on 18/11/2017 by the Center for Entrepreneurship,Nirma University . Idea lab team presented model : Geo and won the first prize November 2017
Effect of Alkaline activator on mechanical strength of Geopolymer Mortar. Guided students of 7th semester who won National Award for Best B.Tech project in civil engineering given by Indian Society for Technical Education and Baba Banda Singh Bhadur engineering College for Project titled “ Effect of Alkaline activator on mechanical strength of Geopolymer Mortar.” 2015
High strength Geopolymer concrete Best Idea Lab Project 2015

Prof. Sonal Pragnesh Thakkar - Experience

Institute / OrganizationDesignationDuration
Nirma Institute of Diploma Studies ( Nirma University of Science and Technology)Lecturer- Senior Scale December 1999 To April 2008
Sardar Vallabhbhai Patel institute of Technology – VasadLecturer Civil Engineering August 1998 To December 1999
The Maharaja Sayajirao Univ. BarodaTemperory Lecturer July 1997 To November 1997
K. M. Thakkar and AssociatesDesign engineer October 1996 To July 1997
Otoklin Al-Qahtani ConsortiumAssistant Quality Control Manager February 1994 To September 1996
Ghanshamdas BhawnaniCivil Engineer March 1991 To till date 1992

Prof. Sonal Pragnesh Thakkar - Publication



TitleISSN / ISBN No PublisherVolumeYear
Analysis And Design of Cable Stayed Bridge ISBN13:978-8473-0389-3  2011

Book Chapter

TitleISSN / ISBN No PublisherVolumeYear
Durability Studies Durability Studies for ambient cured geopolymer concrete using GGBFS as source material  Taylor and Francis 2015
Durability Studies of Fly Ash and GGBFS based Geopolymer Concrete at Ambient Temperature  Taylor and Francis 2015

International Conference

TitleISSN / ISBN No PublisherVolumeYear
Durability Studies of Geopolymer Concrete with Processed Fly Ash    2013
fly ash based geopolymer concrete - some durability studies and behaviour of beams and columns    2013
Parametric Study of 3 and 6 Storey Base Isolated building with Superstructure Eccentricity    2011
Parametric Study of Shapes of Pylons for Cable Stayed Bridge    2010

International Journal

TitleISSN / ISBN No PublisherVolumeYear
Effect of Size and Arrangement of Tension Reinforcement on Flexural Behavior of Reinforced Concrete Beam 2347 - 5161International Journal of Current Engineering and Technology72017
Resistance of Geopolymer Concrete with Fly Ash and Slag to Sulphate and Acid Attack 2248-9428 (Print), ISSN 2248-9436 (Online).International Journal of Civil Engineering Research and DevelopmentVolume 4, Number 22014
Resistance of Geopolymer concrete with Fly Ash and slag to Sulphate and Acid attack 2248-9428PRJ Publication4, Number 22014

National Conference

TitleISSN / ISBN No PublisherVolumeYear
Sustainable concrete using rice husk ash as supplementary material    2013

National Journal

TitleISSN / ISBN No PublisherVolumeYear
Factors Affecting Compressive Strength of Heat Cured Geopolymer Concrete with Fly ash and Slag  IUP Publications, ICFAI 2015

Prof. Sonal Pragnesh Thakkar - Qualification

QualificationSpecializationUniversityPassing Year%Class
M.E. Structural Engineering Maharaja SayajiRao University Faculty of Technology & Engineering December 1993 75.00First class with Distinction
B.E. B.E. Civil ( Advanced Structural Analysis) Sardar Patel University Birla Vishvakarma Mahavidhayala February 1991 74.00First class with Distinction

Prof. Sonal Pragnesh Thakkar - Activity

Activity TypeActivity TitlePlaceDateFaculty Role
STTP / SDP / FDP / QIP Earthquake Resistant Design and Retrofitting of Structures Institute of Technology, Nirma University30/06/2014Participant
STTP / SDP / FDP / QIP 2-Week ISTE Workshop on ENGINEERING MECHANICS Institute of technology26/11/2013Cordiantor of workshop
STTP / SDP / FDP / QIP One week ISTE workshop for coordinators under National Mission on Education through ICT IIT Bombay16/09/2013Participant
STTP / SDP / FDP / QIP Sustainable Development and Environmental Management Institute of technology, Nirma Univeristy01/07/2013Participant
International Workshop Research Methods in Educational Technology Institute of technology, Nirma Univeristy02/02/2013Participant
STTP / SDP / FDP / QIP seismic design of reinforce concrete buildings IIT gandhinagar26/11/2012Participant
STTP / SDP / FDP / QIP Application of Geo-Informatics for infrastructure Project Development and Management Institute of technology, Nirma Univeristy04/07/2012Participant
STTP / SDP / FDP / QIP Introduction to Research Methodologies LDRP Gandhinagar25/06/2012Participant
STTP / SDP / FDP / QIP Structural steel design for engineering college faculty Institute of technology, Nirma Univeristy21/06/2010Participant
International Workshop Mission 10X Institute of technology, Nirma Univeristy24/08/2009Participant
STTP / SDP / FDP / QIP Emerging Trends in Earthquake Resistant Design and Construction of Structure Institute of technology, Nirma Univeristy25/05/2009Participant
STTP / SDP / FDP / QIP Life Skills for engineers Institute of technology, Nirma Univeristy16/06/2008Participant
National Seminar Advances in building Management systems Institute of technology, Nirma Univeristy19/10/2007Participant
National Seminar trends in Nano Science and Nano Technology Institute of technology18/08/2007Participant
National Seminar pollution and waste disposal : issues and concerns Institute of technology, Nirma Univeristy09/12/2006Participant
International Workshop team work Institute of technology, Nirma Univeristy17/06/2006Participant
International Workshop environment and pollution awareness with particular refrence to pharmaceutical industry institute of Pharmacy11/09/2004Participant
International Workshop environment and pollution awareness with particular refrence to pharmaceutical industry institute of Pharmacy11/09/2004Participant
International Workshop Advanced Building Systems and Services Institute of technology29/03/2003Participant
STTP / SDP / FDP / QIP Earthquake Resistant Design and Construction of Structures Institute of technology, Nirma Univeristy02/12/2002Participant
STTP / SDP / FDP / QIP Evaluation, Repair and Rehabilitation of Distressed Structures Institute of technology, Nirma Univeristy26/12/2001Participant
STTP / SDP / FDP / QIP Computer Applications to civil Engineering Problems using C++ and VC++ HASSAN, KARNATAKA03/09/2001Participant
STTP / SDP / FDP / QIP Advanced Construction Technology and Management Nirma Univeristy Participant
STTP / SDP / FDP / QIP "Construction Practices on Wheels" Ahmedabad Participant

Prof. Sonal Pragnesh Thakkar - Research Projects

TitleFund TypeAgencyStart DateDurationPrincipal Investigator
Evaluation of Mechanical and Durability Properties on Fly ash and Rice Husk based geo polymer concreteInternal FundingNERF01/12/20151 yearPI - Prof. Sonal Pragnesh Thakkar

Prof. Sonal Pragnesh Thakkar - Project Guided

Project TitleDescriptionDuration
Mechanical and Durability Studies of Fly ash and Bottom ash based Geopolymer concrete at Ambient Temperature   June 2017
Mechanical and Durability Studies of Fly ash and Bottom ash Pottasium based Geopolymer concrete at Ambient Temperature   2017
Experimental Investigation on Exposure of Geopolymer concrete to High Temperature   June 2015
Durability studies of Fly Ash and GGBFS based Geopolymer concrete at Ambient Temperature   June 2014
Evaluation of Strength and Durability of Geo-polymer Concrete using GGBFS as a source material Geopolymer concrete using GGBFS as source material October 2013
Evaluation of strength and durability for geopolymer concrete with combination of GGBFS and Fly ash as source material Combination of Slag and Fly ash for geopolymer concrete October 2013
Durability Properties of Geopolymer Concrete and its Application in Civil Engineering Field Concrete usage around the world is second only to water. Ordinary Portland Cement (OPC) concrete is the most popular and widely used building materials, due to availability of the raw materials all over the world, its ease in preparation and fabrication in all sorts of conceivable shapes. About 1.5 tons of raw materials is needed in the production of every ton of OPC. Amount of carbon dioxide released during the manufacturing of Ordinary Portland Cement (OPC) due to the calcinations of limestone and combustion of fossil fuel is in the order of one ton for every ton of OPC produced. On the other hand, the abundant availability of fly ash worldwide creates opportunities to utilize this by-product of burning coal, as a substitute for OPC to manufacture concrete. It is essential to find alternatives to make environment friendly concrete. An alternative to make environmentally friendly concrete is the development of Inorganic alumina-silicate polymer, called Geopolymer, synthesized from materials of geological origin or by-product materials such as fly ash that is rich in silicon and aluminum. According to Davidovits, geopolymerization is a geosynthesis that chemically integrates materials containing silicon and aluminium. During the process, silicon and aluminum atoms are combined to form the building blocks that are chemically and structurally comparable to those binding the natural rocks. By using the fly ash based geopolyer concrete addresses the two environmental related issues i.e. the high amount of carbon dioxide released to atmosphere during production of OPC and utilization of Fly ash. Experimental work includes design mix of M25 grade of geopolymer concrete by various permutations and combinations in fly ash content. So that comparison of various durability studies and behaviour of reinforced geopolymer concrete specimen can be compared with M25 grade of control concrete. Class F fly ash is used as source material. Geopolymer concrete has been heat cured for 24 hours at 750C.Sodium silicate and Sodium hydroxide solution is used as alkali activators. Durability study includes Sulphate Resistance, Acid Resistance, Chloride Attack, Water Absorption, Sorptivity and Accelerated Corrosion Test. For sulphate, acid and chloride, performance of the concrete is evaluated based on visual appearance, change in mass and change in compressive strength, resepctively. Sorptivity and water absorption characteristic are also evaluated. Accelerated corrosion test performed to evaluated corrosion resistance property of geopolymer concrete. For reinforced geopolymer concrete specimen, load carrying capacity, load-deflection relationship, mode of failure and crack pattern are observed and compared with control concrete. Test results have indicated that geopolymer concrete posesses good durability resistance. An acid resistance test result shows very low mass loss of geopolymer concrete after various exposure period as compared to control concrete. Sulphate and c October 2012
Analysis And Design Of Concrete Filled Steel Tube Structure Subjected To Lateral Loading Steel-concrete composite columns are used extensively in modern buildings. Exten- sive research on composite columns in which structural steel section is encased in concrete have been carried out.In- lled composite columns, however have received limited attention compared to encased columns. In this work, review is carried out on composite columns with emphasis on analytical work. Also it includes review of re- search work that has been carried out to date, accounting the e ects of local buckling, bond strength, lateral loading, con nement of concrete and behavior of steel-concrete composite columns. Analytical studies of behavior of concrete lled circular steel tubes under lateral loading and study of interactions between steel tube and concrete lled is done. The behavior of the Concrete lled steel tube columns is controlled by both the strength and con nement e ect of steel tube and concrete lled in the columns. The con ne- ment provided by a closed steel section allows higher strengths to be attained by the concrete. Circular concrete- lled tubes develop hoop-tension which further increases the overall load-carrying capacity of the concrete. The objective of the present study is to understand the behavior of the concrete lled tube structural system for high-rise building and to design structural systems includ- ing e ects of the lateral loading. Also study the con nement e ect on concrete due to steel tube is done. Comparative study of concrete lled tube (CFT), R.C.C and steel structure with di erent storey height of 10, 20 and 30 stories. With all structural systems as frame structure is carried out. Determination of the design load-carrying capacity and subsequently comparison to several building codes was done. It also shows that the use of concrete lled steel tube columns that now have been consistently applied in the design of tall buildings provide considerable economy in comparison with conventional steel columns. Their use, allows the adoption of steel or composite oor systems combined with economically constructed columns. The use of these columns also has considerable advantages over reinforced concrete columns as they allow higher percentages of reinforcement to be adopted. Reduction in the column size can provide signi cant economic bene t since use of high strength steel can be applied in these situations. The use of composite columns becomes much more attractive where the need for high strength within a small "footprint" and good intrinsic re resistance are considered more important than the basic price of the structural frame. Composite columns are likely to nd an increasing role in supporting the very long-span oors which are becoming more usual in commercial constructions and in modern buildings. When comparative study of CFT, RCC and Steel building is done, CFT building is found to be better in load carrying capacity with small cross section of column and displacement parameter Also number of stories for same structural syste October 2011
Analysis And Design of Base Isolated Asymmetric Structure In order to control the vibration of building during seismic events, base isolators is most commonly used for energy absorption. It dissipates the energy by its own char- acteristics and also changes the dynamic behavior of the building. Today there are number of types of isolators available in the market, which uses a variety of materials and designs to obtain various levels of sti ness and damping. Some of this includes Lead rubber bearings, High damping rubber bearings and Friction pendulum system. These isolators can be installed at various location of the building, but are usually provided at the bottom of the building.In present study an attempt is made to un- derstand the Seismic behavior of base isolated asymmetric structures. Finite element models were employed in the analysis using the computer program SAP 2000 version 14.1. A fast nonlinear Kobe Response spectrum analysis were car- ried out to obtain the response of the structure. A strategy for protecting building from earthquake is to limit the base shear, which provides an overall assessment of the seismic response of the structure. In this study 0%, 5%, 10% and 15% of mass and sti ness eccentricities are in- corporated in super structure. Mass eccentricity in super structure is incorporated by shifting the center of mass by 5%, 10% and 15% to one side of building, while sti ness eccentricity is incorporated by shifting the center of sti ness by 5%, 10% and 15% to one side of building, and to study the in uence of base isolated buildings with mass and sti ness eccentricity in super structure on the seismic response for 3 and 6 storey buildings. The results of analysis are compiled in form of time period, base shear, displacement, and storey drift. Comparison of results of base isolated buildings of 0%, 5%, 10% and 15% of mass and sti ness eccentricities with the xed base building. Also comparison is done for mass and sti ness eccentricities in base isolated buildings is carried out. vi Results form this study conclude that a higher base shear, displacement and story drift exits in base isolated buildings with mass eccentricities in the superstructure than in base isolated buildings with sti ness eccentricity in the building. Second to study the best location of isolators when 5%, 10% and 15% of mass eccentricities in super structure and various distribution of isolators in base isolation system such that CI = CM, CI = - CM, CI = 0.5 CM, CI = - 0.5 CM. This includes the sti ness eccentricities in base isolation system for 3 storey building. Where CI means the center of isolator and CM means the center of mass. The results of analysis are compiled in form of time period, base shear, displacement, storey drift and ampli- cation factor. Comparison of results of base isolated buildings of 5%, 10% and 15% of mass eccentricities in super structure and sti ness eccentricities in base isolation system for models CI = CM, CI = - CM, CI = 0.5 CM, CI = - 0.5 CM with the xed base building. Resul October 2010
Analysis and Design of Cable Stayed Bridge Man has achieved a lot in field of Structural Engineering as it is most evident in the World's largest bridge spans, tallest structures etc. In the recent years cable stayed bridges have received more attention than any other bridge mainly, in the United States, Japan and Europe as well as in third-world counties due to their ability to cover large spans. Cable-stayed can cross almost 1000m (Tatara Bridge, Japan, Normandie Bridge, France) In India few of the cable stayed bridges are constructed and a couple of them are underway. Like Bandra-Worli sea link, Second Hoogly Bridge are the finest example of application of cable stayed bridge in India. Cable stayed bridges for road over bridge in Bangalore and Chennai have come up and a cable stayed road over bridge is proposed in various smaller emerging cities. There is still place for innovation in Cable-stayed bridge techniques Here detail study of the cable stayed bridge is done. Historical facts, various compo- nents of the bridges, types of the pylon arrangements, type of the cable configuration arrangements has been done to give a brief idea about cable stayed bridge from the various literature surveyed. For validation of the software used an example solved in a technical paper has taken and verified. Cable stayed bridge of 200m span having 100m central span with H type pylon shape and with semi-harp type cable configuration has been taken for analysis in SAP2000. The cable stayed bridge is modeled with proper technique from the guidance of various literature surveyed. Then study for the behavior under various loading is undertaken. Live load was taken according to IRC 6:2000. IRC Class A and Class 70R vehicle load along with Aerostatic wind loads was undertaken. A Dynamic analysis in the form of linear Time-History is also carried out to investigate dynamic response of the Cable-stayed Bridges and various response quantities such as Bending-moment, Shear-force, Torsion and Axial force are represented. Then a Parametric Study has been carried out by varying the shape of the pylon and the central span of the bridge. The shapes here taken for study are H shape, A shape, Diamond shape, Delta shape, Inverted Y shape. The span taken for study varied from 200m,400m,600m,800m. The linear and dynamic case has been compared for the response quantities. The result of study is represented in graphical form for various response quantities like Bending-moment, Shear-force, Torsion and Axial force. The performance of different shape are better for different response quantities so it cannot be merely concluded form analysis which is better so a detailed cost comparison can only give the better shape suitable by designing each shape and components. Design of the cable stayed bridge is performed for 200m H type Cable stayed bridge. The cable are designed by taking maximum axial force acting on it and the providing the number of cables required for resisting the force. Pylon are designed as slender column with b October 2009
Analysis and Design Of Machine Foundation Contemporary developments in industry are characterized by the steady increase in power of machine. Machines, engines, generators, turbines, power generation and transmission equipment are some of the main components in any industrial activity. All these are generally heavy and generate dynamic loads and moments and have to be supported using ‘Foundations’. These machines generate lot of vibrations and there is continual trend towards more powerful and faster production machines, which has led to higher dynamic loads giving rise to more intense vibrations of floors.These vibrations, if not controlled by proper balancing of the machines, can cause failure of the machines, structures and foundations due to fatigue, wear and tear of machine parts such as bearing, shafts, gears, and the noise can gradually become excessive and unbearable. Also, if the frequency of the dynamic forces generated in a machine or structure is close to the natural frequency of the whole system, resonance induces excessive responses leading to failures. Machine foundations are designed such that the dynamic forces of machine are transmitted to the soil through the foundation so that all kinds of harmful effects are eliminated. The aim of present work is to review the Analysis and Design of existing machine foundation structures (Block Foundation and Frame Foundation) built on site. Analysis of Block Foundation has been carried out manually by preparing EXCEL spread sheets.Design of the same has been done by manual calculations. Analysis of Frame foundation has been is also carried out using software (STAAD Pro 2006) and Design is carried out through manual calculations.Analysis of block foundation having pump is also done by preparing EXCEL spread sheets and design of the same has been done manually. Parametric study of both the foundation for the different soil properties is carried out for existing foundations . Analysis and design of Block Foundation includes study of geotechnical data, vendor provided data (machine speed, weights of the machines, foundation loads and relevent drawings), code and standards [IS 2974 (part1) 1982 – for IV analysis and design, IS 5249 : 1992 – for dynamic properties of soil] and specifications of Bechtel France S.A.S. It also includes static and dynamic analysis of framed foundation using STAAD Pro2006 and Design of the same is carried out by manual calculation,includes static and dynamic analysis,model is prepared using ‘Finite Elements’like 4- noded plate element.Plate stresses are found out from analysis and based on those stresses design is carried out. Dynamic analysis is carried out using ‘Time History analysis’. Resonance check is carried out from free vibration analysis and from forced vibration analysis ,Time-displacement ,Time-velocity checks are carried out.Design is carreid out as per IS 2974 (part 3) :1992 One more case study is carried out,which is block foundation,but having horizontal pump.It also includes analysis and desig October 2008

Prof. Sonal Pragnesh Thakkar - PhD Students