LIFE CYCLE COST ANALYSIS OF FLEXIBLE AND RIGID PAVEMTN MATRERIAL

Transcription

1 International Journal of Technical Innovation in Modern Engineering & Science (IJTIMES) Ipact Factor: 5.22 (SJIF-2017), e-issn: Volue 4, Issue 6, June-2018 LIFE CYCLE COST ANALYSIS OF FLEXIBLE AND RIGID PAVEMTN MATRERIAL Nitish Kuar K 1 1 Departent of Civil Engineering & New Horizon College of E gineering,nitish.sit@gail.co Abstract In the developing country the infrastructure developent give way for the developent of country. On the sae tie the investent to the project developent requires ore cost and efficient aintenance. where we are having restricted aount for investent, then the alternative ethods of aterial and construction ethodology has to adopt for best output. Infrastructure basically consists highway, airports, seaports, bridges etc. The road sector is very necessary because ore than 60% of the passengers and goods are trawling through road. Hence good connectivity will ensure faster oveent of traffic if the paveent is in good condition. For ensuring good condition construction and aintaining of paveent has to carried out based on type of paveent. Life Cycle Cost Analysis of Paveent (LCCA) is one tool to study of transportation project relating paveents starting fro its design phase to its entire service life. It deterine the total cost and value of ite over the entire life cycle of paveent. The cost of road construction includes design expenses, aterial extraction, construction equipent, rehabilitation and aintenance strategies. In the present study a stretch of 24k National Highway of Butwal, Nepal was considered and various data like paveent perforance, aterial, traffic, cliatic condition and econoic data were collected and integrated. Coparative life cycle cost for flexible paveent and rigid paveent are carried out by designing a paveent for 30year life. In this flexible paveent was designed for design period of 10 year with aintenance of 15 years and rigid paveent for 30 years to finalize optiu perforing paveent based on construction and aintenance. Based on above study we conclude that construction cost of rigid paveent are 28% ore than flexible paveent. Total quantity of aterial in case of flexible paveent is 8% greater than that of rigid paveent. Keywords Life cycle cost analysis (LCCA), Rigid paveent and Flexible paveent I. INTRODUCTION Due to the lack of fund and liited budget transportation office choose the ost cost effective project alternatively. Choosing the ost cost effective type and design paveent which provide high quality of service to travelling public is one of the ost iportant decision of LCCA. It is an econoic evaluation tool that provides valuable guidance to transportation official in this process. The use of LCCA ethod ay optiise the project construction and aintenance cost. Infrastructure basically consists highway, airports, seaports, bridges etc. The road sector is very necessary because ore than 60% of the passengers and goods are trawling through road. Hence good connectivity will ensure faster oveent of traffic if the paveent is in good condition. For ensuring good condition construction and aintaining of paveent has to carried out based on type of paveent. Mr. Siddesh kashinath pai et al, suggested aintenance cost of rigid paveent is 19% less as copared to flexible paveent and Life cycle cost of rigid paveent is 20-25% less than flexible paveent. Mr. Peyan Babashasi et al, suggested Life cycle cost analysis research will becoe ore robust if iproveents are ade, facilitating private industries and governent agencies to accoplish their econoic ais. Mr. Zeynep Guven suggested survey results showed Life cycle cost analysis is used widely aong transportation agencies and it varied at different project condition. In the present study for a stretch of 24K are considered for Life cycle cost analysis of paveent. Coparative life cycle cost for flexible paveent and rigid paveent are carried out by designing a paveent for 30year life. In this flexible paveent was designed for design period of 10 year with aintenance of 15 years and rigid paveent for 30 years to finalize optiu perforing paveent based on construction and aintenance. IJTIMES-2018@All rights reserved 803

2 II. METHODOLOGY A. Collection of site date B. Design of Flexible and Rigid paveent C. Construction Cost of paveent and its quantity coparison D. Coparison of construction cost and aintenance cost III. RESULT AND DISCUSSION Project are started with collection of required data, analyse, design and coparison. A. Collection of site data Data required for project are collected along a length of 24K for two lane divided road.. The data collected are CBR data, Traffic data, Topography, Rainfall data, Terrain, Longitudinal, Cross section, Material cost & Maintenance cost. B. Design of Flexible and Rigid paveent The design of Flexible paveent and Rigid paveent were down by IRC: and IRC: as per Indian standards. 1. Flexible paveent design a) CBR = 6% (90% Reliable CBR value along the stretch of road) b) Lane Distribution Factor, D = 75% c) Vehicle Daage Factor, V = 4.5 (Calculated as per available traffic data) d)design life, n = 15 years e) Annual growth rate, r = 5% f) Initial traffic, A = 4543 N = 120sa For a CBR of 6% and Cuulative no. of standard axle of 120sa paveent thickness proposed are tabulated below. TABLE I Total Flexible paveent thickness and cost Description Thickness, Length, Width, Volue, Cu Rate/Cu, Rs Total, Rs Granular base Dense bituinous acada Sei dense bituinous acada Total IJTIMES-2018@All rights reserved 804

3 2. Rigid paveent design a) Modulus of subgrade reaction, K = 50.3MPa b) Design life, n = 30 years c) Annual growth rate, r = 5% d) Cuulative no. of vehicle during the design period. C= 365*A((1+r)^n -1)/r C = 180sa Paveent are designed by considering trial thickness of 0.25 then after Fatigue daage analysis we conclude thickness of paveent TABLE III Total Rigid paveent thickness and cost Description Thickness, Length, Width, Volue, Cu Rate/Cu, Rs Total, Rs 1 Subgrade borrow soil Dry lean concrete Paveent quality concrete Total C. Construction Cost of paveent and its quantity coparison Fig. 1 Graphical representation of thickness of flexible paveent Fig. 2 Graphical representation of thickness of Rigid paveent Fro the above graph we can see that variation of thickness of different layer based on the aterial we used in and load carrying capacity of aterial. Quantity of aterial required in rigid paveent is 8% less than flexible paveent. IJTIMES-2018@All rights reserved 805

4 D. Coparison of construction cost and aintenance cost TABLE IIIII Maintenance in Rigid paveent and Flexible paveent Flexible Paveent Rate, % Maintenance cost of paveent Cost, Rs Rigid Paveent Cost, Rs 1 Sei Dense Bituinous Macada (Every 5year after design life) Subgrade borrow soil Asphalt Concrete Surface Surface Dressing Dry lean concrete Penetration Macada Total Total Cost of Flexible Paveent After 15 year for every 5 year aintenance (3x ) = Paveent quality concrete Total cost of Rigid paveent for 30 year Fro the above table III we can see that flexible paveent initial construction cost is less copared with rigid paveent. After construction of Rigid paveent there is less aintenance cost for design period of 30 years, we can say that is negligible. But in case of flexible paveent it is aintained for next 15years with addition to initial cost of construction. If we copare aintenance cost of flexible paveent with rigid paveent till 30 years we can see flexible paveent is ore than rigid paveent. IV. CONCLUSIONS The coparison between Flexible and Rigid paveents by using ethod of life cycle costing gives the initial cost of rigid paveent is 28% higher than the initial cost of flexible paveent. Rigid paveents are high on initial costs but these costs get balanced during the entire life of 30 years since ore durability and serviceability is provided by the paveent. The total quantity of aterials in flexible paveent is 8% ore than that of rigid paveents. Life cycle cost analysis of Flexible paveent was found to be 20% higher than that of rigid paveent. REFERENCES [1] Christensen P.N., Sparks, G.A., and Kostuk K.J. A ethod-based survey of life cycle costing literature pertinent to infrastructure design and renewal Canadian Journal of Civil Engineering, 2005, Vol. 32 : , Saskatoon, Canada. [2] Berthelot. Mechanistic-Probabilistic Vehicle Operating Cost Model Journal of Transportation Engineering, 1996, Vol:122 No:5, pp IJTIMES-2018@All rights reserved 806

5 [3] Peyan Babshasi, Nur Izzi Md Yusoff, Hashe Sale Salarzadeh Jenatabadi. " Evaluation of Paveent life cycle cost analysis: Review and analysis". International Journal of Paveent Research and Technology 2016, Vol. 9 : [4] Akhai Mudassar Mohaed Shafi, Ahed Afaqued Shakeel. Siddesh Kashinath Pai. " Life Cycle Cost Analysis of Road Paveents in Rural Areas". International Journal of Science Technology and Manageent, 2016, Vol. 5, Issue 08, [5] Alpure Ashish P, Dahatonde Yogita B, Ganjale Shishir S, Gore Yogesh Y, Ingle Utkarasha B, Kulkarni Shrikant S. " Ultra White Thin Topping". IOSR Journal of Mechanical and Civil Engineering, 2015, e-isssn: , ISSN: X, , Maharashtra, India. [6] Sunil Kuar R, Manjunatha S, B V Kiran Kuar, P Praveen Kuar, " Analysis of Axle Loaing and Deterination of Vehicle Daage Factor and Design of Overlay on Outer Ring Road in Bangalore, Karnataka". International Journal for Science Research and Developent, 2014, Vol.2, Issue09, ISSN , [7] ACPA. Life Cycle Cost Analysis: A Guide for Alternate Paveent Designs, Aerican Concrete Paveent Association, Skokie, IL, [8] AASHTO (1993). Life Cycle Cost Analysis Survey Aerican Association of State Highway and Transportation Officials, Washington, DC, [9] IRC: "Design of Flexible Paveent" Third revision, 2012, New Delhi. [10] IRC: "Design of Rigid Paveent" Fourth revision, 2015, New Delhi. IJTIMES-2018@All rights reserved 807