Research - Dept. of Civil Engg.

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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.
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.
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.
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.
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.
Experimental Investigation and Prediction of Compressive Strength of HPC with SCMs
(Journal of Advance Research Construction and Urban Architecture, 2017) Magar, Rajendra; Khan, Afroz Rahat Naeem; Khan, Rahil; Ansari, Shahbaz; Khan, Haroon
Due to environmental concern, the use of supplementary cementitious materials (SCMs) is increasing at a high rate in construction industry. In this study, an experimental investigation has been carried out to assess the compressive strength of high performance ternary mix concrete with judicious replacement of cement with (SCMs), which include industrial waste products such as fly ash (FA), ground granulated blast furnace slag (GGBS) and micro silica. Replacement of cement was done up to 40%, 45%, 50%, by incorporating P100 fly ash as an ultrafine material with GGBS as SCMs. Each replacement was further divided into three sub parts (40%F. A-60%GGBS), (45%F.A-55%GGBS) and (50%FA-50%GGBS). Experimental results showed that Mix T3 (60%Cement-20%F.A-20%GGBS) produced maximum strength of 89.4 MPa and 100 MPa at 14 days’ and 28 days’ curing respectively. Experimentally generated data in the laboratory was used for the development of the multiple linear regression models. Keywords: Cement; P100 fly ash; FA; GGBS; HPC; Compressive Strength
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.
Valuation of residential properties by hedonic pricing method (HPM)
(International Journal of Engineering Development and Research, 2016) Kanojia, Anita (14CEM04); Magar, Rajendra; Jadhav, Umesh
Hedonic Pricing Method (HPM) is used for estimating the value of a commodity or the demand for a commodity. The method has been widely used in real estate and housing market research in the recent past. In this report, Estimation of residential market price by Hedonic Pricing Method due to environmental service is discussed. Environmental services is a concept from the ecological economics literature. 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.” It undertake an examination of use of this methodology in the recent real estate and housing literature in the preparation of housing predictive model. The idea behind the HRM is that the commodities are characterized by their constitute properties, hence the value of a commodity can be calculated by adding up the estimated values of its separate properties. Data required that influences the residential property rates will be collect.ed and are analysed 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.
Valuation of Residential Properties by Hedonic Pricing Method- A State of Art
(Institute for Research and Development, India, 2016) Kanojia, Anita (14CEM04); Jadhav, Umesh
The Hedonic Pricing Method (HPM), also known as hedonic Regression method (HRM) and Hedonic Demand Method (HDM) is used in estimating the value of attributes or the demand of attributes. Hedonic goods are analyzed by "Hedonic price model" and it makes possible to calculate the suitability of price indices in the commodity markets. Hedonic attributes involve immovable properties, such as apartment, computers, cars, home things, mobile phones etc. The features of these goods form their prices. Marginal effects of features of attributes in forming the prices of hedonic goods can be determined by this approach. In other words, the parameters obtained from estimating the hedonic price model describes the marginal value of characteristics of goods. The HPM has been widely used in real estate and housing market research in the recent past. The idea behind the HPM is that the commodities are characterized by their constitute properties, hence the value of a commodity can be calculated by adding up the estimated values of its separate properties. In this paper, emphasis is given on case study related to applicability of hedonic Pricing method, its methodology, comparison with other methods and its limitations.

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