Publication - Civil Engineering

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Achieving quality excellence in Indian engineering education: modelling and analysis using system dynamics
(International Journal of Business Excellence - Inderscience, 2016-04) Honnutagi, Abdul Razak
As the Indian industry becomes globally competitive in several sectors, one of the critical factors is the success of the engineering and technical education. The objective of this paper is to present a research study initiated for developing an integrated framework for quality excellence in engineering education. About 20 quality excellence models and international quality awards were studied in depth and it was found that almost all models lack predictive ability. In order to incorporate predictive ability of the quality excellence models, system dynamics methodology was used in the study. The system dynamics model thus developed for predicting quality excellence was used to generate various scenarios and analysed. which are presented in this paper.
Analysis & Design of FRP Jacketing for Buildings
(Blue Eyes Intelligence Engineering & Sciences Publication Pvt. Ltd., 2014-07) Maralapalle, Vedprakash
The objective this paper is to discuss effectiveness of FRP jacketing method used to improve the performance of deteriorated structure, this technique successfully applied on the structure. Also Design method, field application techniques, Advantages, Disadvantages and suitability have been discussed.
Analysis & Design of R.C.C. Jacketing for Buildings
(Blue Eyes Intelligence Engineering & Sciences Publication Pvt. Ltd., 2014-07) Maralapalle, Vedprakash
The objective this paper is to discuss effectiveness of R.C.C. jacketing method used to improve the performance of deteriorated structure, this technique successfully applied on the structure. Also Design method, field application techniques, Advantages, Disadvantages and suitability have been discussed.
Application of building information modeling (BIM) to civil engineering projects
(International Journal of Engineering Research, 2016-01-09) Gawade, Prathamesh P.; Pakhmore, Mudassir Zahid; Mansoori, Raiyan
Abstract : There are various draw backs in conventional method used for planning, scheduling & monitoring projects in Architecture, Engineering, and Construction (AEC)industry which fails to provide a clear view of the on-going actual work at the project site. Building Information Modeling (BIM) is Single file concept collaborating various database of the project at one platform. It is a data repository for building design, construction & maintenance information combined in one convenient model to share with all the stakeholders. 3D visualizations allow customers to see historic preservation & site context with respect to the new project. This paper focuses the perspective of a planning engineer with respect to Conventional method & B I M and gives a methodology to prepare a 4D simulated model of a Gr. (Stilt) + 16th Floor residential building taking 4th dimension as time.
Application of Principles of lean management in Construction Industry, A technique in the Indian construction industry
(International Journal of Recent Advances in Engineering & Technology (IJRAET), 2016) Pillai, Karuna; Shukla, Manojkumar; Magar, Rajendra
The construction industry has been severely vexed by several problems, and one of the major attributors being ‘the construction waste’. There is a severe need for identifying the sources of wastes and to improve the competence and to cut back on these wastes. For this Lean construction and its tools have been introduced as a new management principle for better implementation. These include reducing variability in production and production cycles. The tools that shall be used to achieve this include following a push-pull approach, use of multifunctional, multi skilled teams, and scrutiny of the following by just in time schedules. There are countless challenges in the implementation of lean concept in construction industry. The implementation of lean management in Indian construction industry is scarce. Due to lack of attention and illiteracy towards the lean management principles and application of its tools the owner, contractor, engineers etc. are still acquiring training to implement this principle in their projects. This project mainly focuses on to identify the possibilities of implementation of lean management in construction industry. It will be achieved by preparing the questionnaire and also conducting the interview with the project personals like top management, engineers and site supervisors etc., via cyber mass media. The questionnaires shall then be evaluated to adopt the best suited techniques through statistical methods. This paper focuses on the possibilities of effective utilization of lean management principles in construction industry, which can surely increase the quality of work and profit rate by eliminating the wastage of material.
Artificial Intelligent Techniques in Rainfall-Runoff Process
(5 International Conference on Water Resources and Arid Environments (ICWRAE 5), 2013-01-07) Magar, Rajendra
The use of rainfall-runoff (R-R) models in the decision making process of water resources planning and management has become increasingly indispensable. R-R modeling is still one of the most difficult issues in hydrological sciences due to the dynamic, uncertain and non-linear characteristics and relationship among the processes. In the broad sense R-R modeling has started at the end of 19th century and till today various types of models have been developed and applied based on their mechanism, input data and other modeling requirements. Fairly a large number of empirical, conceptual and physically based models having their own merits and demerits have been developed and applied to map the R-R relationship. In the real world, temporal variations in data do not exhibit simple regularities and thus R-R process is difficult to analyze and model accurately by conventional modeling approach. Hence R-R modeling approach has been shifted from process based technique to data-driven based Artificial Intelligent (AI) techniques like Artificial Neural Network (ANN), Adaptive Neuro Fuzzy Inference System (ANFIS), Genetic Programming (GP) and Model Tree (MT). The primary aim of this paper is to highlight the merits and demerits of those recent works on R-R modeling using AI techniques. As a value addition, a graphical user interface (GUI) has been developed as a decision support system.
As Engineering Teachers, Do We Resemble A T20 Cricket Batsman or A Test Cricket Batsman?: Let Us Introspect
(International Research Journal of Engineering and Technology (IRJET), 2024-10) Patil, Dada S.
The title might puzzle the readers. The author positively hopes that the work carried out and the content presented in this paper with reference to an effective teachinglearning process, in general and teaching-learning mechanism in engineering education, in particular would probably convince the readers about the appropriateness and relevance of this unusual sounding title. The so called smart engineering students of Generation Z are habituated to shortcut and mechanical way of learning rather than in-depth and conceptual learning; so, they tend to pursue the teacher for a quick way of teaching. Hence, the attainment of various learning levels, as depicted in Bloom’s taxonomy, in a true sense, remains an ambiguous issue. The author shared his short video with the second year civil engineering students to carry out an interesting exercise through Google form survey. The video contained a demonstration of calculation of two support reactions of a simply supported beam, from first year engineering mechanics course. Intentionally, the problem was demonstrated in a highly mechanical way through the video, without explaining the concepts at depth. A Google form containing 8 questions was circulated among the students. In all, 46 students responded. The first question was exactly similar to the problem demonstrated in the video. It was correctly answered by 30 students, thereby making the passing rate as 65.2%. Questions 2 to 8 were related to the first question; however, critical thinking and conceptual teaching was needed to answer those. Most of the students performed poorly while attempting those questions. This clearly underlined a dire need of imparting strong fundamentals to the learners by an engineering teacher. Along with discussing the significance of various modern tools and techniques for an efficient teaching-learning mechanism, this paper mainly stresses upon the need of conceptual teaching. Key Words: Bloom’s taxonomy, teaching-learning, conceptual teaching, modern tools and techniques of teaching, e-learning, Google form survey, etc.
Assessment of Feasibility of Sintered Fly Ash Lightweight Aggregate as an Effective Self-Curing Additive for Sustainable Concreting Practice
(E3S Web of Conferences, 2024-11-22) Patil, Dada S.; Nadaf, Firoz; Parkar, Fauwaz
Effective curing is an essential requirement for a desired long-term performance of concrete. For 1 cubic metre of hardened concrete, 3 cubic metre of water is required; most of which is consumed for curing, thereby leading to an unsustainable practice. Limited depth of water penetration occurs in conventional method of external curing. Self-Curing (SCu), also known as Internal Curing facilitates uniform moisture distribution throughout the concrete. Moreover, enormous amount of curing water can be saved for a sustainable development. This is achieved by incorporating prewetted porous lightweight aggregates (LWAs); water held in LWA pores is gradually desorbed in to surrounding matrix over a period of time for an effective Self-Curing by maintaining sufficient moisture inside the concrete mass. Different types of LWAs are used for this purpose. The available literature indicates that sintered fly ash LWAs are used to produce non-structural and structural lightweight concrete; but their utilization for internal curing is not found. In this experimental work, feasibility of 4 to 8 mm spherical sintered fly ash LWA to act as an effective Self-Curing agent was assessed through various tests. Scanning Electron Microscopy revealed that LWAs were porous enough to hold sufficient amount of water. Higher specific gravity as compared to that of other types of LWAs made it desirable material from strength and density point of view. Higher water absorption rate within initial 30 minutes reflected it’s better desorption behaviour; highly desirable for an effective internal curing. Oven-dried LWAs were immersed in blue ink for 24 hours and then placed in a white cement paste. The thick blue ink corona around LWA confirmed about better desorption. This is not true of every type of LWA. Cement-sand mortar cubes were cast by volumetrically replacing sand by 10%, 15% and 20% prewetted LWAs for compressive strength tests at 3, 7 and 28 days. Prewetting was done for 24 hours and 72 hours. Conventional mortar cubes were placed under water; prewetted LWA-incorporated specimens were placed inside laboratory in an open air and directly under the sun. Conventional specimens exhibited highest strength values. Among Self-Curing specimens, 15% LWA cubes indicated maximum compressive strength; marginally less than that of water- cured cubes. 72-hour prewetted LWA cubes resulted in higher strengths as compared to that of 24 hour prewetted LWA cubes. Ultrasonic Pulse Velocity values for all the specimens were between 3.16 to 3.68 km/sec. The experimental results indicated that sintered fly ash LWA can be used as a potential material to produce Self-Curing concrete. Key words: Self-Curing / desorption / sintered fly ash LWAs / mortar cubes / sustainable practice / water absorption / sufficient moisture / open air / sun / etc
building information modeling (BIM) application in Architecture, Engineering and Construction (AEC) Industry
(International Journal of Recent Advances in Engineering & Technology, 2016) Pakhmore, Mudassir Zahid; Mansoori, Raiyan; Gawade, Prathamesh P.
Abstract— The Architecture, Engineering & Construction (AEC) industry has a long chase to overcome the barriers of conventional method come from project cost overrun, poor productivity, quality, and extended time. Building Information Modeling (BIM) offers the traditional approach to overcome these drawbacks in a highly integrated fashion with efficient and effective collaboration between all stakeholders. As a result, it has been acknowledged as one of the rising trends in the contemporary construction industry. However the use of BIM has not been limited only in the building construction industry, also rapidly growing for almost all type, scale and size of built environment projects. It has now exhibits promising trends to all other construction works such as bridge, roads, power plants, industry facility and so on. BIM is Single file concept ollaborating various database of the project at one platform. It is a data repository for building design, construction & maintenance information combined in one convenient model to share with all the stakeholders. 3D visualizations allow customers to see historic preservation & site context with respect to the new project. This paper highlights perspective of a planning engineer with respect to Conventional method & BIM and gives a methodology to prepare a 4D simulated model of a Gr. (Stilt) + 16th Floor residential building taking 4th dimension as time. Furthermore it includes case study references to exploit the rational findings of BIM.
Case Study: Application Of Mathematical Techniques On A Construction Project
(Yadavrao Tasgaonkar Institute of Engineering & Technology, 2013-03-06) Parkar, Fauwaz
With the continuous decline in profit margins and increased competition in construction projects, construction contractors are finding ways of eliminating waste and increasing profit. Although numerous approaches have been developed to improve efficiency and effectiveness of construction processes, implementing statistical techniques offer the promise to minimize, if not eliminate non valueadding work. Time study is the study carried out to assess human effectiveness by improved planning and sound incentive scheme to its employees. It is employed in the assessment of human efforts in all its aspects to lead systematically to all the factors which ultimately affect efficiency and economy of the situation under study in realizing the objectives of bringing about improvements. The purpose of this article is to highlight the benefits of statistical techniques over the traditional methods employed in construction. The writer intends to explain, why time-motion studies need to be carried out to determine the productivity of the system under study; why waiting line models need to be applied to find out the most optimum solution or method which will give highest productivity. Further, the authors stress that vendors must be rated based on their past performance for punctuality, quality and reliability, and hence a Vendor Rating Index(V.R.I) should be given to vendors, which would help assessing them for present or future assignments. Vogel’s Approximation Method must be applied to a Transportation Matrix for finding Initial Basic Feasible Solution (IBFS).Subsequently method of multiplexes must be applied to the Transportation Matrix to balance between supply and demand and hence find out the optimal units that need to be supplied from a particular site to a particular destination, minimum cost of transportation is obtained.
Comparative study and decision making for a formwork technique to be adopted on a construction site in mumbai
(IJRET: International Journal of Research in Engineering and Technology, 2016-01) Kazi, Arbaz; Parkar, Fauwaz
To address the housing and transportation requirements of an exponentially increasing population, Indian construction industry has grown by leaps and bounds. Thus with the globalization of Indian economy & introduction of multinational companies in India for construction activities, it has become imperative to have precise & speedy construction projects. Conventional construction methods are not able to cope with the demand of infrastructural facilities with high degree of quality control & assurance. No doubt, conventional methods prove to be economical, but they fail in providing required number of dwellings in time; hence latest construction technologies by applying fast-track construction is the only remedy left to address this issue. Formwork is an important part of construction and it takes 25-30 % of total cost of construction. Thus with the use of new technologies in formwork, construction permits casting of larger elements in a single pour, which reduces time and labour requirement as compared to conventional methods. Thus, the various new systems have promised to achieve overall economy with faster as well as high quality construction. In this paper, an attempt is made to have a comparative study of established conventional formwork technology with a set of new formwork techniques, which are currently not used much in Indian construction industry; and hence suggest which method is superior for the construction project under consideration.
Comparative Study of Rice Husk Ash, Metakaolin & Standard Concrete
(International Journal of Recent Advances in Engineering & Technology (IJRAET), 2016-04-01) Shah, Dhaval
This paper summarizes the comparison between properties of Rice Husk Ash (RHA) and Metakaolin when used as partial replacement for Ordinary Portland Cement (OPC) in concrete. OPC was replaced with these mineral admixtures at 5%, 10% and 15% by weight. 0% replacement served as the control. Compressive Strength test was carried out on hardened 150mm concrete cubes after at 1, 3, 7, 28, 45 & 56 days curing in water. Compression strength test confirms its suitability as a partial replacement mineral admixture.
Comparing design-build and design-bid-build project- Case of residential projects
(Thakur College of Engineering, 2016-02-20) Kazi, Arbaz; Parkar, Fauwaz
Every construction project is unique in nature; it needs certain resources, viz. man, material, machinery, money, methodology, time etc. in addition to conducive environment required for its successful execution. To complete any construction project vis-a-vis planned objectives within the allotted budget and stipulated time is always a difficult task for the management. With the continuous decline in profit margins and greater competition in construction projects, construction contractors are finding ways of eliminating waste and increasing profit. Although numerous approaches have been developed to improve efficiency and effectiveness of construction processes, there still seems lack of proper research to predict the performance of a particular parameter based on other factors affecting the project. Here, an attempt has been made to correlate the resource utilization for both traditional as well as fast-track construction, which would ultimately help project stakeholders, decide the optimum use of available resources. The objectives of this paper is to conduct a questionnaire survey on construction projects executed with both traditional and fast-track approach and determine Karl-Pearson’s correlation co-efficient between two independent projects (one traditional and one fast-track) w.r.t optimum resource utilization. In essence, this crux of this exercise is to help project stakeholders predict the approach to be adopted for a particular project.
Computation of Static Modulus of Elasticity and Poisson's Ratio of M20 Grade Self-Curing Concrete with PEG-400 as a Self Curing Agent Using IS Code and ASTM Standard
(SSRN, 2020-10) Patil, Dada S.; Anadinni, Shrishail B.
The concrete does not attain its original shape after unloading as it is not an elastic material. It is a non-linear material as depicted by its stress-strain curve. Hence, the elastic constants like modulus and Poisson’s ratio are not strictly applicable to such a complex, heterogeneous and nonlinear construction material. However, an elastic behaviour is assumed for the analysis and design of concrete structures by making use of these constants. The modulus of elasticity of concrete is its inherent property of undergoing an elastic deformation. Higher value of modulus leads to an enhanced stiffness of the structural elements. Curing is one of the important parameters influencing the modulus value. Curing caters to maintaining the required temperature, preventing water loss and shrinkage associated with it. The Shrinkage Reducing Admixture (SRA) in the form of Polyethylene Glycol 400 (PEG 400) liquid, added as a self-curing agent, plays an important role of reducing the water evaporation from the concrete mass, resulting into an improved water retention capacity of the concrete. PEG 400 is hydrophilic in nature. It plays a dual role of controlling evaporation and attracting moisture from the atmosphere. Self-curing leads to uninterrupted and effective curing by retaining the required quantity of water for an adequate cement hydration and maintaining the high relative humidity (RH), thereby resulting in to hard and dense concrete, with reduced thermal and shrinkage cracks. To provide a practical solution for the nonavailability of better quality water or lack of proper curing due to negligence, producing a self-curing concrete is a sustainable option. Generally, self-curing is advocated for the High Strength Concrete (HSC) having low water-cement ratio (w/c), because of chemical shrinkage associated with Portland cement hydration and low permeability of these materials. Moreover, it is an effective way to reduce the self-desiccation, autogenous shrinkage, plastic shrinkage cracking, drying shrinkage cracking and water absorption. Though the structural elements like Reinforced Cement Concrete (RCC) slabs are cast using lower grade concrete like M20, generally with higher w/c ratio, they are directly exposed to the harsh environment while concreting and a considerable period after concreting. To add to this, many times, the curing is not sufficient on the construction site. This leads to the undesirable situation of concrete properties not getting developed to their full potential values; the vital parameters being strength and modulus. Modulus of elasticity of concrete is known to be a function of its compressive strength. Development of required modulus of elasticity, for a structural element with a particular concrete grade, makes it adequately stiff thereby satisfying the limit state of serviceability for deflection. Excessive deflection of any structural element is highly undesirable phenomenon; moreover, it is well established fact in RCC theory that the slab depth is governed by the deflection criterion. This paper discusses an experimental investigation of short term static modulus of elasticity and Poisson’s ratio of M20 grade of self curing concrete using PEG 400 as a self curing agent. Three different dosages of 1%, 1.5% and 2% of PEG 400, expressed as percentage of weight of cement, were used. The conventional cylindrical specimens were subjected to water curing for 28 days, whereas self cured cylinders were exposed to air curing in an open shaded area for 28 days. Indian Standard: IS 516- 1959 and American Society for Testing and Materials (ASTM) standard: C469/C469M-2014 were followed for testing conventional as well as self cured specimens. The laboratory investigation was aimed at comparing the values of the two elastic constants obtained for the self cured concrete with that for the conventional mix, by both the methods. Though conventional concrete had highest values of density and compressive strength, it was observed that concrete with 1.5% PEG 400 exhibited greatest values of modulus of elasticity, by both the methods. Dosages of 1.5% and 2% of PEG 400 resulted in to higher values of Poisson’s ratio in comparison with that for conventional mix and 1% PEG 400 mix. Keywords: PEG 400, self-curing concrete, short term static modulus of elasticity, Poisson’s ratio, chord modulus, concrete density, stiffness, porosity.
Concrete Mix Design for M35 Grade: Comparison of Indian Standard Codes, IS 10262: 2009 & IS 456:2000 with American Code, ACI 211.1-91
(International Research Journal of Engineering and Technology (IRJET), 2019-02) Patil, Dada S.
A rational & logical Concrete Mix Design to cater to the practical requirements plays a key role in concrete engineering. It is well established fact that the concrete is highly consumed material throughout the world. With the exponentially high demand of infrastructure facilities, the concrete requirement is on a very huge scale. Therefore, using the optimum quantities of concrete making constituent materials is of utmost importance in order to achieve the desired fresh & hardened properties. Owing to an enormous utilization of concrete in day- to-day construction work, economy is a vital factor to be considered. In India, mix design is carried out by following the rules prescribed in IS 10262: 2009 & IS 456:2000. As a well known fact, every country has its own codes to design a concrete mix. In this paper, an attempt has been made to compare the Concrete Mix Design of M35 grade by the American Code; ACI 211.1-91 with Indian codes IS 10262: 2009 & IS 456:2000. The outcomes are critically reviewed & the comments are given. Keywords: OPC, (w/c) ratio, nominal maximum size of aggregate, workability, slump, target mean strength, etc.
Design and cost economic analysis of self compacting concrete for mivan shuttering
(International Journal of Engineering Development and Research, 2016) Syed, Mehdi Abbas (14CEM16); Magar, Rajendra; Patil, Dada S.
This paper summarizes the experimental work performed to design a self-compacting concrete for Mivan shuttering and cost analysis of cost of the designed per m3 mineral and chemical admixtures. Workability tests such as Flow table test, V funnel test and U box tests were conducted. Compressive Strength test was performed out on hardened 150mm concrete cubes after 3, 7, & 28 days curing in water. The output of the research work was a highly workable concrete which could be used for densely reinforced sections of Mivan shuttering.
Domain knowledge, adequate software skills and physical model making: A dire necessity for the undergraduate learners for an outcome based teaching-learning process in structural engineering
(K.K Wagh Institute Of Engineering Education and Research (KKWIEER), Nashik, 8th and 9th June, 2019) Patil, Dada S.; Magar, Rajendra
Earn Value Management a Boon to Indian Construction Industry
(Tech-Chronicle, 2016-09) Magar, Rajendra; Shukla, Manojkumar
Earned Value Management (EVM) is a systematic approach to the integration and measurement of cost, schedule, and technical (scope) accomplishments on a project or task. It provides both the government and contractors the ability to examine detailed schedule information, critical program and technical milestones, and cost data. .EVM technique can do forecasting of duration for a project .It gives a well-defined pathway of existence to the project and when to take precautionary measures for updating the project if project is behind the schedule. It can be used to identify the cost overruns and time overruns. EVM technique can be applied using certain software's like MSP, Primavera, etc.
Effect of Colloidal Nanosilica on High Strength Rice Husk
(Journals Pub, 2017-01) Magar, Rajendra; Khan, Afroz; Gupta, Vipin (16DME138); Gupta, Vinay; Sayyed, Firoz Khalil (16DCES83)
Nowadays, supplementary cementitious materials (SCMs) are used in concrete because it reduces CO2 emission during. The husks, which are production of cement, reduces cement contents, improve workability, increase strength and enhance durability. Pozzolanic reaction takes place when siliceous or aluminous material comes in contact with calcium hydroxide in the presence of moisture to form compounds possessing cementitious properties approximately 50 percent cellulose, 30 percent lignin and 20 percent silica, are incinerated by controlled combustion leaving behind an ash that predominantly consists of amorphous silica. Rice husk ash is highly pozzolanic due to its extremely high surface area (50,000 to 100,000 m2/kg). The colloidal nano silica (CNS) which is nano material and behaved not only as a filler to improve cement micro-structure (porosity decrease), but also as a promoter of pozzolanic reaction used in cement for accelerating pozzolanic action due to which the cement sets faster than conventional mix. In the present study, the mineral admixture, rice husk ash (RHA) was used as 5, 10, 15% replacement for OPC in M60 grade of concrete. The 10% RHA was taken as optimum dose on the basis of workability and compressive strength. To this 10% RHA concrete, effect of 1, 2, 4, and 6% CNS addition were experimentally studied with various properties like workability, compressive strength and split tensile strength.
Effect of Environmental Service by Hedonic Pricing Model
(International Journal of Engineering Research, 2016-01) Kanojia, Anita (14CEM04); Jadhav, Umesh
Environmental services refer to qualitative functions of natural non-produced assets of land, water and air (including related ecosystem) and their biota, which implies natural environment providing particular important uses or benefits that can be captured under the concept of “services.” Our objective is to analyze the benefits associated with such environmental services in order to make them more visible. The hedonic pricing method uses the value of a surrogate good or service to measure the implicit price of a non-market good. The basic idea of the hedonic pricing method is that the price of a market good is related to its characteristics or the services it provides rather than the good itself. This article focuses on assessing residential property rate influenced by environmental services by applying hedonic pricing model. It is most commonly applied to variations in housing prices that reflect the value of local environmental attributes. The paper defines Hedonic Pricing method (HPM) and its methodology. Data required that influences the residential property rates will be collected and are analyzed using regression analysis which relates to statistically estimate a function that relates property values to the property characteristics, including the distance to open space. Thus, the effects of different characteristics on price can be estimated. The results can be used to evaluate the variations of property rates for small change in characteristics holding all other characteristics constant. Price prediction model is than prepared.

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