International Journal of Engineering Trends and Technology (IJETT) - Volume4Issue5- May 2013 Techno- Economical Study of Rigid Pavement by Using the Used Foundry Sand 1 Vipul D. Prajapati1, Nilay Joshi2, Prof. Jayeshkumar Pitroda3 Student of final year B.E. Civil Engineering, B.V.M. Engineering College, Vallabh Vidyanagar Student of final year B.E. Civil Engineering, B.V.M. Engineering College, Vallabh Vidyanagar 3 Assistant Professor and Research Scholar, Civil Engg Department, B.V.M. Engineering College, Vallabh VidyanagarGujarat-India 2 Abstract— Indian road network of almost 3.5 million km comprising both paved and unpaved surfaces is the world’s second largest. Indian roads are presently constructed with not the right choice of material. The two major types of materials, bitumen and concrete are used in road construction in the country. A very small share of roads in the country is made of concrete. Though, it is superior on many counts as a medium for road buildings. The use of large amount of by-product materials as powder or fines not only avoids the requirement of landfills but also reduce the environmental problems. It is most essential to develop profitable building materials from used foundry sand. The innovative use of used foundry sand in concrete formulations as a fine aggregate replacement material was tested as an alternative to traditional concrete. The fine aggregate has been replaced by used foundry sand accordingly in the range of 0%, 10%, 30% & 50% by weight for M-20 grade concrete. Concrete mixtures were produced, tested and compared in terms of compressive and flexural strength with the conventional concrete. These tests were carried out to evaluate the mechanical properties for 7, 14 and 28 days. This research work is to investigate the behaviour of concrete while replacing used foundry sand in different proportion in concrete. This low cost concrete with good strength is used in rigid pavement for 3000 commercial vehicles per day (cvpd) and Dry Lean Concrete (DLC) 100mm thick for national highway to make it eco-friendly. Keywords— Used Foundry Sand, Compressive Strength, Flexural Strength, Rigid Pavement, commercial vehicles per day (cvpd), Eco-Friendly, Cost I INTRODUCTION Three fourths of Indians live in our 600,000 villages, we are urbanising rapidly. The rest ISSN: 2231-5381 of the population lives in cities and towns. Barring a meagre 2% of the total road length in the country that is made of concrete roads, the remaining vast share is made largely of unbound aggregates surfaced with bitumen or asphalt based wearing courses of varying and inadequate thicknesses. Concrete roads by themselves offer tremendous advantages over conventional bitumen roads in both operational and financial terms. These advantages are well known. The most salient of these advantages are durability and relative freedom from maintenance which go to offer substantial long term economies in our cash strapped cities. Use of foundry sand in various construction engineering applications can solve the environmental problems. Foundry sand consists primarily of silica sand, coated with a thin film of burnt carbon, residual and dust. Foundry sand can be used in concrete to improve its strength and other durability factors. Foundry Sand can be used as a partial replacement of fine aggregates as supplementary replacement to achieve different properties of concrete. This foundry sand consumes a large area of local landfill space. Some of the wastes are land spread on cropland, or running off into area lakes and streams. Some industries burn their sludge in incinerators, contributing to our serious air pollution problems. To reduce disposal and pollution problems emanating from these industrial wastes, it is most essential to develop profitable building materials from them. Keeping this in view, investigations were undertaken to produce low cost concrete by blending various ratios of fine aggregate with used foundry sand. The study will lead to possible innovative utilization of foundry sand in construction of concrete roads apart from its present use in land fill application. The use of waste foundry sand, if could be feasible, will not only provide for its better utilization but also will help in conserving the precious natural resource of natural sand. http://www.ijettjournal.org Page 1620 International Journal of Engineering Trends and Technology (IJETT) - Volume4Issue5- May 2013 II EXPERIMENTAL MATERIALS A. Materials a) Foundry sand Metal foundries use large amounts of the metal casting process. Foundries successfully recycle and reuse the sand many times in a foundry and the remaining sand that is termed as foundry sand is removed from foundry. This study presents the information about the civil engineering applications of foundry sand, which is technically sound and is environmentally safe. Use of foundry sand in various engineering applications can solve the problem of disposal of foundry sand and other purposes. Foundry sand consists primarily of silica sand, coated with a thin film of burnt carbon, residual binder and dust. Foundry sand can be used in concrete to improve its strength and other durability factors. Foundry Sand can be used as a partial replacement of cement or as a partial replacement of fine aggregates to achieve different properties of concrete. P2O5 0.00 Mn2O3 0.02 SrO 0.03 LOI 5.15 TOTAL 99.87 Source: R. Siddique, Waste Materials By-Products in Concrete, Springer-2008 and b) Cement The most common cement used is an ordinary Portland cement. The Ordinary Portland Cement of 53 grade conforming to IS: 8112-1989 is used. c) Aggregate Aggregates are the important constituents in concrete. They give body to the concrete, reduce shrinkage and effect economy. One of the most important factors for producing workable concrete is good gradation of aggregates. Good grading implies that a sample fractions of aggregates in required proportion such that the sample contains minimum voids. Samples of the well graded aggregate containing minimum voids require minimum paste to fill up the voids in the aggregates. Minimum paste is mean less quantity of cement and less water, which are further mean increased economy, higher strength, lower shrinkage and greater durability. d) Coarse Aggregate The fractions from 20 mm to 4.75 mm are used as coarse aggregate. The Coarse Aggregates from crushed Basalt rock, conforming to IS: 383 are used. The Flakiness and Elongation Index were maintained well below 15%. Figure: 1. Used Foundry sand Source: Foundry Industry, GIDC, Vallabh Vidyanagar, Anand, Gujarat TABLE–1 PROPERTIES OF FOUNDRY SAND Constituent Value (%) SiO2 Al2O3 Fe2O3 CaO MgO SO3 Na2O K2O TiO2 ISSN: 2231-5381 87.91 4.70 0.94 0.14 0.30 0.09 0.19 0.25 0.15 e) Fine aggregate Those fractions from 4.75 mm to 150 micron are termed as fine aggregate. The river sand is used in combination as fine aggregate conforming to the requirements of IS: 383. The river sand is washed and screened, to eliminate deleterious materials and over size particles. f) Water Water is an important ingredient of concrete as it actually participates in the chemical reaction with cement. Since it helps to from the strength giving cement gel, the quantity and quality of water is required to be looked into very carefully. http://www.ijettjournal.org Page 1621 International Journal of Engineering Trends and Technology (IJETT) - Volume4Issue5- May 2013 III DESIGN MIX A mix M20 grade was designed as per Indian Standard method (IS: 10262-1982) and the same was used to prepare the test samples. The design mix proportion is done in Table 2. TABLE-2 DESIGN MIX PROPORTION FOR (M20 MIX) W C F.A. C.A. (lit) (Kg/m3 (Kg/m3 (Kg/m3) ) ) 1231.11 By weight, 191.60 383.21 569.38 [gms] 0.5 1 1.48 3.21 By volume, [m3] W= Water, C= cement, F.A. = Fine Aggregate, C.A. = Coarse Aggregate TABLE-3 CONCRETE DESIGN MIX (M20 MIX) PROPORTIONS Sr. No. Types of Concrete Concrete Design Mix Proportion W/C ratio C F.A. C.A. U.F.S. 1 A0 0.50 1.00 1.48 3.21 - 2 A1 0.50 1.00 1.33 3.21 0.148 3 A2 0.50 1.00 1.03 3.21 0.444 4 a replacement of fine aggregate material begins with the concrete testing. Concrete contains cement, water, fine aggregate, coarse aggregate and grit. With the control concrete, i.e. 10%, 30% and 50% of the fine aggregate is replaced with used foundry sand, the data from the used foundry sand is compared with data from a standard concrete without used foundry sand. Three cube samples were cast on the mould of size 150*150*150 mm and 100*100*500 mm for each 1:1.48:3.21 concrete mix with partial replacement of fine aggregate with w/c ratio as 0.50 were also cast. After about 24 h the specimens were de-moulded and water curing was continued till the respective specimens were tested after 7,14 and 28 days for compressive strength and 28 days for flexural strength tests. A. Compressive strength Compressive strength tests were performed on compression testing machine using cube samples. Three samples per batch were tested with the average strength values reported in this paper. The loading rate on the cube is 35 N/mm2 per min. The comparative studies were made on their characteristics for concrete mix ratio of 1:1.48:3.21 with partial replacement of fine aggregate with used foundry sand as 10%, 30% and 50%. A3 0.50 1.00 0.74 3.21 0.740 C= cement, F.A. = Fine Aggregate, C.A. = Coarse Aggregate, U.F.S. = Used Foundry Sand IV EXPERIMENTAL SET UP TABLE-4 DESIGN MIX PROPORTION FOR VARIOUS CONCRETE Sr. Types of Fine Aggregate No. Concrete Replacement with Used Foundry Sand 1 A0 Standard Concrete 2 A1 10% replacement 3 A2 30% replacement 4 A3 50% replacement V EXPERIMENTAL METHODOLOGY The evaluation of Used Foundry Sand for use as ISSN: 2231-5381 Figure: 2 Setup of Compression Strength Testing Machine TABLE -5 COMPRESSIVE STRENGTH OF CUBES (150X150X150) FOR M20 MIX AT 7, 14, 28 DAYS Average Compressive Strength Types of [N/mm2] Concrete 14 days 28 days 7 days A0 13.93 20.59 24.00 A1 18.81 24.30 28.15 A2 25.48 28.15 32.30 http://www.ijettjournal.org Page 1622 International Journal of Engineering Trends and Technology (IJETT) - Volume4Issue5- May 2013 A3 27.26 37.19 40.89 Figure: 3 Types of Concrete V/S Compressive Strength (N/mm2) at 7, 14 and 28 days B. Flexural Strength Test The flexural strength is determined by the central point method. Standard metallic beam moulds (100 mm * 100 mm * 500 mm) were cast for the preparation of concrete specimens for flexural strength. A table vibrator was used for compaction of hand filled concrete beams. The specimens were demoulded after 24 hours and subsequently immersed in water for different age of testing. For each age three specimens were used for the determination of average flexural strength. The test was performed on Universal Testing Machine (UTM) having capacity of 50 BT. The schematic arrangement of beam specimen in UTM is as shown in figure 4. The beams cast with various proportions of fly ash are tested as described above. Figure 4 Schematic representation of loading arrangement of Center-Point Loading Flexural Strength Test The flexural strength is calculated by using bending equation: M/I = f/y, OR, f = M/I x y; OR, f = M/Z Where, M, I, y and Z represent respectively bending moment, moment of inertia, distance of farthest fiber and section modulus. For rectangular section Z = bd2/6, Where b and d denote the breadth and depth of the beam respectively. Here, the value of f ISSN: 2231-5381 (characteristic flexural strength is obtained experimentally and Z is calculated from beam geometry. Three specimens of beam are tested for each type of concrete and average flexural strength is obtained. TABLE 6 AVERAGE FLEXURAL STRENGTH (100X100X500) AT 28 DAYS FOR M20 Average Flexural Strength Types of (N/mm²) Concrete 28 Days A0 A1 A2 A3 7.32 7.72 7.95 8.45 Figure: 5 Types of Concrete V/S Flexural Strength (N/mm2) at 28 days DESIGN OF A ROAD PAVEMENT (IRC: 58-2002) A cement concrete pavement is to be designed for a two- lane two-way National Highway in Gujarat State. The total two-way traffic is 3000 commercial vehicles per day (cvpd) at the end of the construction period. Design Parameters: Types of concrete (A3) Present Traffic =3000 cvpd Design life =20 yrs. Compressive Strength (fck) = 40.89 N/mm2 = 408.9 kg/cm2 Flexural strength of cement concrete = 8.45 N/mm2 (Modulus of rupture) = 84.5 kg/cm2 CBR = 4% Dry Lean Concrete (DLC) =100 mm http://www.ijettjournal.org Page 1623 International Journal of Engineering Trends and Technology (IJETT) - Volume4Issue5- May 2013 Effective modulus of subgrade reaction of the DLC sub-base (k) Elastic modulus of concrete (E) Poisson’s ratio (µ) Coefficient of thermal coefficient of concrete (α) Tyre pressure (q) Rate of traffic increase (r) Spacing of contraction joints (L) Width of slab (b) Load safety factor (LSF) Wheel load (P) C/C distance between two tyres (S) Joint width (z) = 13.15 kg/cm3 = 3 X 105 kg/cm2 = 0.15 = 10x 10-6/˚C = 8 kg/cm2 = 0.075 = 4.5m = 3.5m = 1.2 = 8000 kg = 31 cm = 2.0 cm The axle load spectrum obtained from axle load survey is given in the following: Single Axle Loads Tandem Axle Loads Axle Percentage Axle load Percentage load of axle class, of axle class, loads tons loads tons 19-21 0.6 34-38 0.3 17-19 1.5 30-34 0.3 15-17 4.8 26-30 0.6 13-15 10.8 22-26 1.8 11-13 22.0 18-22 1.5 9-11 23.3 14-18 0.5 Less than 30.0 Less than 2.0 9 14 Total 93.0 Total 7.0 tonnes 20 18 16 14 12 10 Less than 10 repetitions 71127 177820 569023 1280303 2608024 27622135 3556397 Axle load (AL), tonnes AL x 1.2 Stress, kg/cm2 from charts Stress ratio Expected Repetitions ,n Fatigue life, N Fatigue life consumed (1) (2) (3) (4) (5) (6) Ratio (5) / (6) Single axle 20 24.0 46.5 0.55 71127 12.32 x 104 50.89 x 104 39.26 x 105 19.93 x 109 0.58 Infinity 0.00 18 21.6 43 0.51 177820 16 19.2 40 0.47 569023 14 16.8 36.8 0.44 128030 33 0.39 35560 Tandem axle 36 43.2 Cumulative fatigue life consumed = 0.93 The cumulative fatigue life consumed being less than 1; the design is safe from fatigue considerations. Check for Temperature Stresses: C 365 × {(1 + ) − 1} = 47,418,626 commercial vehicles Design traffic = 25 per cent of the total repetitions of commercial vehicles = 11,854,657 Front axles of the commercial vehicles carry much lower loads and cause small flexural stress in the concrete pavements and they need not be considered in the pavement design. Only the rear axles, both single and tandem, should be considered for the design. In the example, the total number of real axles is, therefore, 11,854,657. Assuming that mid-point of the axle load class represents the group, the total repetitions of the single axle and tandem axle loads are as follows: ISSN: 2231-5381 repetitions 35564 35564 71128 213384 177820 59273 237093 Trial Thickness = 19 cm Cumulative repetition in 20 yrs. = Single Axle Load in Expected tonnes 36 32 28 24 20 16 Less than 16 Tandem Axle Load in Expected Edge warping stress (Ste) = Radius of relative stiffness (l) = 60.44 cm (see below under corner stress) Therefore, L/ l = 450 / 60.44 = 7.45 Bradbury’s Coefficient, which can be ascertained directly from Bradbury’s chart against values of L/ l and B/ l, (C) = 1.051 from fig.2. (IRC: 58-2002) The temperature differential was taken as 12.98°C for the Gujarat region. Edge warping stress C = = 20.46 kg/cm2 Total of temperature warping stress and the highest axle load stress = 24.46 + 46.5 = 66.96 kg/cm2 which is less than 84.5 kg/cm2, the flexural strength. So the pavement thickness of 19 cm is safe under the combined action of wheel load and temperature. http://www.ijettjournal.org Page 1624 0.35 0.00 0.00 International Journal of Engineering Trends and Technology (IJETT) - Volume4Issue5- May 2013 Check for Corner Stresses: Corner stress is not critical in a dowelled pavement. The corner stress can be calculated value from the following formula: Corner stress Sc = √ 1− Radius of relative stiffness (l) = 4 ( ) 60.44 cm a = radius of area of contact of wheel. Considering a single axle dual wheel, a= / a = 0.8521 × × + . × . a = 26.52 cm Corner stress Sc = 1− √ . = 28.99 kg/cm2 The corner stress is less than the flexural strength of the concrete, i.e., 84.5 kg/cm2 and the pavement thickness of 19 cm assumed is safe. DESIGN OF DOWEL BARS Design parameters Diameter of the dowel bar (b) Modulus of Dowel/Concrete interaction (Dowel support) (K) Modulus of the elasticity of the Dowel, kg/cm2 Dowel/Concrete interaction (E) Moment of Inertia of Dowel (I) Fb = = 3.2 cm (assumed) = 41500 kg/cm2/cm = 2.0 × 106 kg/cm2 4 = 5.147 cm ) . . = 298.787 kg/cm2 . = (1 + + + ) Pt = 2.01 Pt Load carried by the outer dowel bar, Pt = ( ) = (8000 x 0.4) / 2.01 = 1588.56 kg Design wheel load (P) = 98 percentile axle load is 16 tonne. The wheel load, therefore, is 8000 kg (dual wheel load) Percentage of load transfer = 40 % Permissible bearing stress in concrete is calculated as under: ( . ) . Assumed spacing between the dowel bars = 20 cm First dowel bar is placed at a distance = 15 cm from the pavement edge Assumed length of the dowel bar = 50 cm Dowel bars upto a distance of 1.0 x radius of relative stiffness, from the point of load application are effective in load transfer. Number of dowel bars participating in load transfer when wheel load is just over the dowel bar close to the edge of the slab = 1+ l / spacing = 1+ 60.44 / 20 = 5 dowels. Assuming that the load transferred by the first dowel is Pt and assuming that the load on dowel bar at a distance of 1 from the first dowel to be zero, the total transferred by dowel bar system Check for bearing stress: Moment of Inertia of Dowel, I = I= × . = 5.147 cm4 Relative stiffness of dowel bar embedded in concrete (β) = Where; β= Fb = ( . The 98 percentile axle load is 16 tonnes. The wheel load, therefore, is 8 tonnes. = cube (15 cm) after 28 days curing concrete = 408.9 kg/cm2 × . × × × . = 0.24 Bearing stress in dowel bar = (Pt × k) × (2+βz) / (4β3EI) = 293.03 kg/cm2 which is less than 298.787 kg/cm2 Hence, the dowel bar spacing and diameter assumed are safe. DESIGN OF TIE BARS: Design Parameters . fck = characteristic compressive strength of concrete ISSN: 2231-5381 http://www.ijettjournal.org Page 1625 International Journal of Engineering Trends and Technology (IJETT) - Volume4Issue5- May 2013 Slab thickness (h) Lane width (b) Coefficient of friction (f) Density of concrete (W) Allowable tensile stress in plain bars (S), (As per IRC: 21-2000) Allowable tensile stress in deformed bars (S), (As per IRC: 21-2000) Allowable bond stress in plain tie bars (B) Allowable bond stress in deformed tie bars (B) Diameter of tie bar (d) 1. = 19 cm = 3.5 m = 1.5 = 2400 kg/m3 =1250 kg/m2 =2000 kg/m2 = 24.6 kg/m2 = 12 mm A=1.13 sq.cm. Perimeter of tie bar (P) = π d = π x 1.2 = 3.77 cm Spacing of tie bars = A / As =33.97 cm Provide at a spacing of 34 cm c/c Cross sectional area of tie bar (A) = 1.13 sq.cm. Perimeter of Tie Bar (P) = 3.77 cm Length of tie bar (L) = = 42.82 cm Increase length by 10 cm for loss of bond due to painting and another 5 cm for tolerance in placement. Therefore, the length is 42.82 + 10 + 5 = 57.82 cm, Say 58 cm 2. Spacing and length of the deformed bar Area of steel bar per metre width of joint to resist the frictional force at slab bottom As = = 0.02079 cm2 Assuming a diameter of tie bar of 12 mm, the cross sectional area Cross sectional area of tie bar (A) = = 48.74 cm Increase length by 10 cm for loss of bond due to painting and another 5 cm for tolerance in placement. Therefore, the length is 48.74 + 10 + 5 = 63.74 cm, Say 64 cm = 17.5 kg/m Assuming a diameter of tie bar of 12 mm, the cross sectional area Length of tie bar (L) = VI ECONOMIC FEASABILITY = 0.03326 cm2 Cross sectional area of tie bar (A) = Length of tie bar (L) = 2 Spacing and length of the plain bar Area of steel bar per metre width of joint to resist the frictional force at slab bottom As = Cross sectional area of tie bar (A) = 1.13 sq.cm. Perimeter of Tie Bar (P) = 3.77 cm Sr. No. 1 2 3 4 TABLE- 7 COSTS OF MATERIALS Materials OPC 53 grade Cement Fine aggregate (Regional ) Coarse aggregate (Regional ) Used foundry sand Rate (Rs/Kg) 6.00 0.60 0.65 0.20 TABLE - 8 TOTAL COST OF MATERIALS FOR M20 DESIGNE MIX CONCRETE (1:1.48:3.21) PER m3 Consumption of Design Mix Total Proportions For M20 Concrete Cost T. (1:1.48:3.21) /m3 C. C F.A. C.A. U.F.S. A0 383.21 569.38 1231.11 3441.10 A1 383.21 512.44 1231.11 56.94 3418.33 A2 383.21 398.56 1231.11 170.82 3372.78 A3 383.21 284.69 1231.11 284.69 3327.23 T. C. = Types of Concrete, C= Cement, F.A. = Fine Aggregate, C.A. = Coarse Aggregate, U.F.S. =Used Foundry sand TABLE 9 RELATIVE COST OF SLAB FOR M20 Slab Cost of Relative Types of Thickness 1m x 1m cost Concrete (cm) Slab (Rs.) (%) A0 22.00 757.04 100.00 A1 20.50 700.75 92.56 A2 20.00 674.55 89.10 A3 19.00 632.17 83.50 A=1.13 sq.cm. Perimeter of Tie Bar (P) = π d = π x 1.2 = 3.77 cm Spacing of tie bars = A / As =54.35 cm Provide at a spacing of 54 cm c/c Length of tie bar (L) = ISSN: 2231-5381 http://www.ijettjournal.org Page 1626 International Journal of Engineering Trends and Technology (IJETT) - Volume4Issue5- May 2013 Mandal, Mr. Yatinbhai Desai, Jay Maharaj construction, Prof. J.J.Bhavsar, Associate Professor, Civil Engineering Department, B.V.M. Engineering College, Vallabh Vidyanagar, Gujarat, India for their motivational and infrastructural support to carry out this research. REFERENCES Figure: 5 Types of Concrete V/S Rigid Pavement Cost (Rs/Smt) V. CONCLUSION Based on limited experimental investigation concerning the compressive strength, flexural strength test of concrete (M20 Grade) for rigid pavement, the following observations are made in the ray of objectives of the study. a) Increase in compressive strength and flexural strength of the concrete with increases in used foundry sand up to 50% and the maximum compressive strength, flexural strength is achieved at 50% replacement of natural fine aggregate with used foundry sand which comes to be 40.89 N/mm2 and 8.45 N/mm2 respectively b) CBR value 4%, DLC=100mm so Cost of rigid pavement decreases from Rs. 757.04 to Rs. 632.17. c) Use of foundry sand in concrete can save the ferrous and non-ferrous metal industries disposal, cost and produce a ‘greener’ concrete for construction. d) Environmental effects from wastes and disposal problems of waste can be reduced through this research. e) A better measure by an innovative Construction Material is formed through this research. f) The used foundry sand can be innovative Construction Material but judicious decisions are to be taken by engineers. There is a further scope of study by using more than 50% replacement of used foundry sand. ACKNOWLEDGMENTS The Authors thankfully acknowledge to Dr.C.L.Patel, Chairman, Charutar Vidya Mandal, Er.V.M.Patel, Hon.Jt. Secretary, Charutar Vidya ISSN: 2231-5381 [1] Abichou T. Benson, C. Edil T., 1998a.Database on beneficial reuse of foundry by- products. Recycled materials in geotechnical applications, Geotech. Spec. Publ.No.79, C. Vipulanandan and D.Elton, eds., ASCE, Reston, Va., 210-223 [2] Bemben,S.M.,Shulze,D.A.,1993.The influence of selected testing procedures on soil/geomembrane shear strength measurements.Proc.,Geosynthetics ’93,Industrial Fabrics Association International,St.Paul,Minn.,619-631. [3] Bemben, S.M., Shulze, D.A., 1995.The influence of testing procedures on clay/geomembrane shear strength measurements. Proc. Geosynthetics ’95, IFAI, St.Paul, Minn., 1043-1056. [4] Dushyant R. Bhimani, Prof. Jayeshkumar Pitroda, Prof. Jaydevbhai J. 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Hassani A. Arjmandi M “Comparative Investigation on Concrete Pavement Thickness Using Industrial Waste Chips, Steel Fiber and Silica Fume”, 9th Int. Symposium on Concrete Roads, Istanbul – Turkey, 4-7 April 2004. AUTHORS BIOGRAPHY Vipul D. Prajapati was born in 1990 in Banaskatha District, Gujarat. He is final year student of Bachelor of Engineering degree in Civil Engineering branch from Birla Vishvakarma Mahavidyalaya Engineering College, Vallabh Vidyanagar, Gujarat. He is interested in research work on utilization of industrial waste in Rigid Pavement for national highways and rural roads. Nilay U. Joshi was born in 1991 in Rajkot District, Gujarat. He is final year student of Bachelor of Engineering degree in Civil Engineering branch from Birla Vishvakarma Mahavidyalaya Engineering College, Vallabh Vidyanagar, Gujarat. He is interested in research work on utilization of industrial waste in Rigid Pavement for national highways and rural roads. Prof. Jayeshkumar R. Pitroda was born in 1977 in Vadodara City. He received his Bachelor of Engineering degree in Civil Engineering from the Birla Vishvakarma Mahavidyalaya, Sardar Patel University in 2000. In 2009 he received his Master's Degree in Construction Engineering and Management from Birla Vishvakarma Mahavidyalaya, Sardar Patel University. He joined Birla Vishvakarma Mahavidyalaya Engineering College as a faculty where he is Assistant Professor of Civil Engineering Department with a total experience of 12 years in field of Research, Designing and education. He is guiding M.E. (Construction Engineering & Management) Thesis work in field of Civil/ Construction Engineering. He has papers published in National Conferences and International Journals. ISSN: 2231-5381 http://www.ijettjournal.org Page 1628