Research - Dept. of Civil Engg.

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Petrography and geochemistry of magnesite and talc deposits of Jhiroli, Kumaun Lesser Himalaya
(Magmatism, Tectonism And Mineralization: Macmillan Publishers India Ltd, 2009) Joshi, Prabha
The Veitsch type magnesite mineralization in association with talc from Jhiroli is confined within the stromatolitic dolomite of Deoban Formation. The dolomite represents many microlithotypes and characterized by nodules and bands of chert. Microtextures suggest a tidal flat environment where different phases of replacement of dolomite by magnesite were observed. Grain boundary relations, replacement features and different phases of reactions between magnesite and silica explain development of talc in the system. There is a noteworthy similarity in geochemical signatures of dolomite, magnesite and talc except a few major and minor elements, which suggest an external chemical flux is not responsible for the magnesite and talc mineralizations. On the basis of field relation, petrography and geochemistry it can be inferred that the marine, sparry magnesite deposits are product of diagenetic replacement of early dolomite in a protected intertidal carbonate flat environment whereas the associated talc deposits resulted from incipient/low grade regional burial metamorphism of these siliceous, magnesium bearing carbonates.
Role of fluids in the formation of talc deposits of Rema area, Kumaun Lesser Himalaya
(Springer, 2009-02) Joshi, Prabha
Talc deposits of Rema area in the Kumaun Inner Lesser Himalaya are hosted within high magnesium carbonates of the Proterozoic Deoban Formation. These deposits occur as irregular patches or pockets mainly within magnesite bodies, along with impurities of magnesite, dolomite and clinochlore. Textures represent different phases of reactions between magnesite and silica to produce talc. Petrography, XRD and geochemistry reveal that the talc has primarily developed at the expense of magnesite and silica, leaving dolomite largely un-reacted. Early fluid inclusions in magnesite and dolomite associated with talc are filled with H2O+NaCl+KCl ± MgCl2 ± CaCl2 fluids, which represent basin fluid system during diagenesis of carbonates. Their varied degree of re-equilibration was although not pervasive but points to increased burial, and hence requires careful interpretation. H2O-CO2 fluid with XCO2 between 0.06 and 0.12 was equilibrated with talc formation. The reaction dolomite+quartz → talc was not extensive because T-XCO2 was not favourable, and talc was developed principally after magnesite+quartz. Keywords Talc Fluid Inclusions Re-equilibration Kumaun Lesser Himalaya
Investigation on the characteristic properties of high performance SCC with mineral admixtures
(Indian Concrete Journal, 2009-09) Patil, Dada S.
In this experimental work, a mix design for self-compacting concrete has been carried out using Nan-Su method. Flow properties such as passing ability, filling ability, and segregation resistance were evaluated by varing the dosage of super plasticier (HRWRA) and viscoity modifing admixture.
Genetic issues of some of the non metallic minerals in lesser Himalaya
(Iranian Journal of Earth Sciences, 2010) Joshi, Prabha
A brief account of the representative and workable industrial minerals namely magnesite, talc and barite in Lesser Himalaya, is presented here emphasizing their genesis. Deposits of magnesite and talc are found associated with Neoproterozoic, plateform type, shelf-slope limestone-dolomite host rocks from inner Lesser Himalayan sequences. Field, textural, geochemical signatures and fluid inclusions trapped in dolomite and magnesite reveal within basin processes, in an increased burial- diagenetic environment responsible for formation of magnesite replacing dolomite. Talc is formed at the expense of magnesite and silica, and with limited dolomite involvement at transition conditions from diagenetic to metamorphism. Barite deposit is hosted within Neoproterozoic Nagthat quartzite rocks of outer genetic understanding.
Use of statistical methods in construction industry
(International Conference on Civil, Structural and Environmental Engineering: ICSEE, 2011-02-18) Parkar, Fauwaz
While manufacturing industry has generally been capable to apply new concepts successfully, construction industry still appears failing to apply them. Although these two industries differ significantly from each other, there is no obvious reason why construction industry should not be able to take advantage applying new concepts, and reject its denounced traditionalism. The new trends have been represented by concepts like mathematical modeling, operations research, lean production techniques, total quality management and just-in-time production. This paper is thus intended to highlight the various scenarios in the life-cycle of construction projects, where statistical methods can be used to overcome the drawbacks of traditional construction. Time studies have been conducted on various grades of manpower and equipments in Indian construction to measure their actual productivity. The application of statistical methods in construction provides construction managers and other decision makers the opportunity of experiencing and responding to various factors which are responsible for loss of productivity, and hence eliminating them.
Intermittent reservoir daily-inflow prediction using lumped and distributed data multi-linear regression models
(Indian Academy of Science, 2011-12) Magar, Rajendra
In this study, multi-linear regression (MLR) approach is used to construct intermittent reservoir daily inflow forecasting system. To illustrate the applicability and effect of using lumped and distributed input data in MLR approach, Koyna river watershed in Maharashtra, India is chosen as a case study. The results are also compared with autoregressive integrated moving average (ARIMA) models. MLR attempts to model the relationship between two or more independent variables over a dependent variable by fitting a linear regression equation. The main aim of the present study is to see the consequences of development and applicability of simple models, when sufficient data length is available. Out of 47 years of daily historical rainfall and reservoir inflow data, 33 years of data is used for building the model and 14 years of data is used for validating the model. Based on the observed daily rainfall and reservoir inflow, various types of time-series, cause-effect and combined models are developed using lumped and distributed input data. Model performance was evaluated using various performance criteria and it was found that as in the present case, of well correlated input data, both lumped and distributed MLR models perform equally well. For the present case study considered, both MLR and ARIMA models performed equally sound due to availability of large dataset.
Multi-time-step ahead daily and hourly intermittent reservoir inflow prediction by artificial intelligent techniques using lumped and distributed data.
(Journal of Hydrology, 2012) Magar, Rajendra
Reservoir inflow forecast is a key component in planning development, design, operation and maintenance of the available water resources. Inflow forecast models are useful in many water resources applications such as flood control, drought management, optimal reservoir operation, hydropower generation (Yeh, 1985).
Reservoir inflow modeling using artificial intelligence techniques and its use in real life.
(GII, 2012-01-19) Magar, Rajendra
Operational planning of water resources systems like reservoirs and hydro power plants calls for real-time reservoir inflow forecasting. In spite of large number of works, the underlying phenomena are extremely complex, non-linear and uncertain, as a result of which the outcome may not always yield entirely satisfactory results.
Use of statistical techniques in construction management
(Two-day National Conference on Emerging Trends in Engineering : NCETE, 2013-01-04) Parkar, Fauwaz
While manufacturing industry has generally been capable to apply new concepts successfully, construction industry still appears failing to apply them. Although these two industries differ significantly from each other, there is no obvious reason why construction industry should not be able to take advantage applying new concepts, and reject its denounced traditionalism. The new trends have been represented by concepts like mathematical modeling, operations research, lean production techniques, total quality management and just-in-time production. This paper is thus intended to highlight the various scenarios in the life-cycle of construction projects, where statistical methods can be used to overcome the drawbacks of traditional construction. Time studies have been conducted on various grades of manpower and equipments in Indian construction to measure their actual productivity. The application of statistical methods in construction provides construction managers and other decision makers the opportunity of experiencing and responding to various factors which are responsible for loss of productivity, and hence eliminating them.
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.
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.
Preparation of Templates for Underground Utility Mapping Using Ground Penetrating Radar System
(Walchand College of Engineering, 2013-05-31) Jadhav, Umesh
This paper discusses on preparation of templates for underground utility mapping using ground penetrating radar (GPR) system for Indian soil conditions. Ground-penetrating radar has been used for several years as a non-destructive method of locating subsurface anomalies. For long time, there are so many baffling problems for GPR, such as to distinguish multiple pipes which are close together, to detect the material and diameter size of the pipe, the detection of small diameter non-metallic pipelines.
Prediction of Blast Loading and Remedial Measures on Buildings
(International Conference On “Emerging Trends in Technology and it’s Applications”, 2014) Maralapalle, Vedprakash
Events of the last ten years have greatly heightened the awareness of building owners and designers of the threat of terrorist attacks using explosives. Blast loads become important service loads for certain categories of structures. An important task in blast-resistant design is to make a realistic prediction of the blast pressures. The distance of explosion from the structure is an important datum, governing the magnitude and duration of the blast loads. The current practice is to choose some arbitrary distance for design purposes. This paper presents some results of analytical studies to show that such a notion is likely to be erroneous, particularly for tall and slender structures. The elements of the blast phenomenon are reviewed, before going into the formulations leading to the ‘critical blast distance’ at which the transient dynamic response rises to a maximum. It also contains Treatment provided to various part of a structure to improve blast resisting mechanism and Architectural aspect of blast resistant buildings design.
Nash IUH parameters estimation using method of moments - A case study
(Journal of Water Resources Society, 2014-04) Magar, Rajendra
Flood forecasting plays an important role in mitigating the natural disaster. Among the available methods for flood forecasting, the unit hydrograph (UH), and instantaneous unit hydrograph (IUH), is widely and successfully used. In case of IUH it is assumed that the hydrograph generation was affected by number of ‘n’ linear reservoirs having similar/same storage coefficient ‘K’ value. The IUH proposed by Nash has been widely used in rainfall-runoff (RR) simulation as well as for flood forecasting. However the success of application of Nash IUH model is based on the accuracy of the estimated parameters ‘n’ and ‘K’ for a given catchment. This study describes the development and application of Nash IUH for the Koyna watershed in Maharashtra, India. The parameters are estimated using method of moments (MOM). This IUH may be useful for predicting the flash flood in to the reservoir for a given rainfall. The obtained direct runoff hydrograph (DRH) estimated from IUH derived is compared with the observed DRH and found to be in good agreement with each other. The performance of the IUH model has been assessed using coefficient of correlation (R), Root mean square error (RMSE), error in peak inflow prediction (%MF) and time to peak flow.
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.
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.
Fluid inclusion and geochemical signatures of the talc deposits in Kanda area, Kumaun, India: implications for genesis of carbonate hosted talc deposits in Lesser Himalaya
(Springer, 2015-06) Joshi, Prabha
Talc deposits in the Deoban Formation of inner Lesser Himalaya in Kumaun are interpreted to have resulted from low-grade, regional burial metamorphism of the siliceous magnesium bearing carbonates consisting of magnesite and dolomite. These deposits are distributed over a large area, occurring in association with magnesite and rarely with dolomite. They are found as fine-grained, fibrous aggregates of talc restricted to small, irregular patches or pockets in carbonate host rocks. Their petrographic features represent different phases of reactions between magnesite and silica to produce talc, thus equilibrium conditions were attained by the assemblage of magnesite + quartz + talc. Scanning electron microscopy also demonstrates that magnesite has reaction margins, whereas dolomite has perfect grain boundary in the magnesite–dolomite–talc assemblage. The major and trace elements in magnesite/dolomite and talc rule out the possibility of any incursion of foreign material during talc formation. Early fluids in magnesite and dolomite were H2O + NaCl + KCl ± MgCl2 ± CaCl2 in composition, their microthermometry data suggest mixing of the fluids. The fluid inclusion studies also imply that talc was formed under the condition of very low XCO2XCO2. A peak temperature of 300–340 °C and pressure of 2–2.2 kbar are estimated from the coexisting immiscible fluids in talc–magnesite assemblage. It is attributed that the estimated PTXCO2XCO2 conditions in the Upper Proterozoic Deoban carbonate rocks, favored the talc formation from magnesite + quartz, and were not conducive to convert siliceous dolomite to talc on a large scale. Keywords Talc Magnesite Fluid inclusions Lesser Himalaya
Use of Rice Husk Ash in Concrete
(International Journal of Scientific and Engineering Research, 2015-12) Syed, Mehdi Abbas (14CEM16); Patil, Dada S.
This paper summarizes the research work on the properties of Rice Husk Ash (RHA) when used as partial replacement for Ordinary Portland Cement (OPC) in concrete. OPC was replaced with RHA by weight at 5%, 10% and 15%. 0% replacement served as the control. Compressive Strength test was carried out on hardened 150mm concrete cubes after at1, 3, 7, 28, 45 & 56 days curing in water. The results revealed that the Compacting factor decreased as the percentage replacement of OPC with RHA increased. The compressive strength of the hardened concrete also decreased with increasing OPC replacement with RHA. It is recommended that further studies be carried out to gather more facts about the suitability of partial replacement of OPC with RHA in concrete.
Primavera Plus GIS is equal to effective project management
(International Journal of Recent Advances in Engineering & Technology, 2016) Mansoori, Raiyan; Pakhmore, Mudassir Zahid; Gawade, Prathamesh P.
Abstract—Good planning ,adequate organizational machinery and sufficient flow of resources are the prerequisites of an efficient project but not without a warning mechanism which will alert the organization about its SWOT (strength weaknesses opportunities and Threats). Project monitoring is the process of doing the same. . The time available for this process is shrinking day by day as the customers need the finished project at the earliest. Effective project management can help to solve this problem. This paper focuses in the perspective of a planning engineer with respect to conventional method demonstrate the benefits of using GIS with construction project management. In this integration of GIS and Project Management is developed using ArcGIS, Primavera, AutoCAD, and Visual Studio to assist construction managers in controlling and monitoring construction progress. Successful project control is a challenging responsibility for all construction managers but when it is complimented with visualization of information, the job becomes easier. Keywords: Planning, Project Management, Primavera
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.

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