Rol NOS ccctecceereees Total No. of Questions : 9 ] | Total No. of Pages : 4 3305 B.Tech. (Civil) 6th Semester (Supplementary) Examination, July-2021 (G Scheni) HIGHWAY ENGINEERING-II Paper-PCC-CE-306-G faximum Marks : 75 Time : Three Hours ] Before answering the questions, candidates should ensure that they have been supplied the correct and complet. question paper. No complaint in this regard, will be eniertained after examination. Note :- Attempt five questions in all, selecting one question from each Section. Question No. 1 is compulsory. All questions carry equal marks. 1. (a) List the various flexible pavement failiuis. (b) Enlist the various types of bitumen ind its quality tests. (©) Define prime coat and tack coat. (d) What is the elongation index ? (ce) What is the serviceability of pavements ? 3305_1500 (1) RD-3454 pts. @ scanned with OKEN Scanner() Briefly explain the surface and sub-surface drainage systems in pavements. Section-A 2. (a) Explain the concept of CBR and give step by step procedure for design of flexible pavement by CBR method as per IRC recommendation. (b) Design a flexible pavement, given R-value of subgrade soil = 32, Traffic index = 11.5, C-value of WBM base course = 20 and C-value of 7.5 cm thick bituminous surfacing = 65. 3. (a) Determine the warping stress at interior edge and corner of a 25 cm thick cement concrete pavement with transverse points at 5m interval and longitudinal joints at 3.6 m intervals. The modules of subgrade reaction k& is 6.9 kg/cm’, Assume maximum temperature differential during day to be 0.6°C per cm slab thickness (for warping stress at interior and edge) and max temp. Differential of 0.4°C per slab thickness during night (for warping stress at the corner). Additional data given. (e = 10 x 10% perc, E = 3 x 10° kg/ cm’, u = 0.15, Cx = 0.88, Cy = 0.54). 3308_1500 (2) RD-3454 @ scanned with OKEN Scanner(vb) Briefly outline the IRC recommendation for determining the thickness of cement concrete pavement. Section-B 4, Write short notes on the following (i) Seal coat (ii) Bitumen bound macadam (iii) Rolled asphalt (iv) Central plant mix and road mix method 5. Explain briefly the construction procedure of BUSG and BM. 4a Section-C 6. (a) What are the causes of development of “Potholes and how they are repaired in Bituminous roads ? (b) Explain the procedure for patch repair works in : (i) WBM pavement (ii) Bituminous pavement 3305_1500 (8) RD-3454 F.1.0. a @ scanned with OKEN Scanner7. Explain the necessity of design approach and method of strengthening of existing pavements for the following cases : (i) Flexible overlay over flexible pavement (ii) Flexible overlay over rigid pavement (iii) Rigid overlay over rigid pavement (iv) Rigid overlay over flexible pavement Section—-D 8. (a) Indicate how the filler materials is designed for use in sub-surface drainage system. (b) Explain briefly various problems in hill roads construction and how they are overcome. 9. (a) Explain the method of benefit cost analysis in the case of Highways. (b) Explain various factors affecting the vehicles operation cost. 3305_1500 (4) RD-3454 @ scanned with OKEN Scannervovrw B. Tech. (Civil) 6th Semester (G Scheme) Examination, July-2022 HIGHWAY ENGINEERING-I Paper-PCC-CE-306-G allowed : 3 hours] [Maximum marks : 75 e: Question No. 1 is compulsory. Students have to attempt five questions in total at least one question from each section. All questions carry equal marks. (i) What is ESWL ? (ii) Mention the types of joints in rigid pavements. (iii) Enlist the various types of bitumen and its quality tests. (iv) What are the pavement roughness index ? (v) State the desirable properties of road aggregate. (vi) Mention the desirable properties of soil as a highway material. Section-A () Discuss the advantages and limitations of CBR method of design. Gi) Enumerate the various methods of flexible pavement design. Briefly indicate the basis of design in each case. 5-P.3.9.9 (22) [P.T.O. @ scanned with OKEN Scanner(2) 3305 sment thickness, expressig, ‘ esipn the CC pa ' i) Design “ Talat d contraction joint spacing, dowel and tie bh; ary a wheel load of 4500 kg. Assume all data an for suitably. (ii) Compare warping, stress and frictional stress jn rigid pavement. Section-B | Explain with sketches the requirements of joints filler and sealer. Discuss the desirable properties and various material in use, limitations of this type of Toad ? Section-c @ scanned with OKEN Scanner9. (3) 3305 Section-D @ Discuss the maintenance problems in hill Toads, Gi) Discuss how the problem of road construction in Water logged areas may be solved. Explain in brief : @ Highway user benefits and cost (ii) Highway Finance ii) Economic Evaluation @ scanned with OKEN ScannerRoll No.» 3305 6th Semester (Civil) B.Tech, Examination ~ May, 2023 HIGHWAY ENGINEERING » " Papers PCC-CH306-G Time : Three Hours | | Maximum Marks : 75 | Before anseewrinng the questions, camidates should ensure that they have ven supplied the correct and complete question paper. No complaint in this regard, cil bv entertained after examination. Note: Attempt five questions in all, selecting, one question from each Unit, Question No. 1 is compulsory. All ‘ questions carry equal marks 1. Describe the following : 25%6=15 (a) Components of Pavements (b) Critical location of loading, (©) Mastic Asphalt (d Subgrade Construction (ce) Non Destructive Evaluation () Flexible Overlays 3805- |Ge".(P-3)(Q-9)(23) P.T.O. @ scanned with OKEN ScannerUNIT -1 2. (a) Briefly describe the design of pavements, 7 (b) Explain the pavement performance and its methods-AASHTO. 8 3. (a) Explain the design of dowel and tie bars. 8 (b) Briefly explain method of rigid pavement design. 7 UNIT - II 4. (a) Explain the construction of BUSG and Premix Carpet. 7 (b) What are the functions of rollers, Paver and Hot Mix plants ? 8 5. (a) Explain the construction of WBM and WMM. 8 (b) Explain the construction of DLC. 7 UNIT — Ill 8. (a) Explain classification of distresses in pavements. 8 (b) Explain the functional and non destructive evaluation of Pavements, 7 7. 7 @) What is the objective of strengthening of 7 Pavement ? (b) Explain the th: . thick tion approach, SS approach and detec 8 : @ scanned with OKEN ScannerUNIT - IV 8. (a) What are the modes of ingress of water in 7 8 highway structure ? (b) Explain the types of subsurface drainage. 9. (a) Explain the cost estimation in highway economics. 7 (b) Explain the PPP projects and rate analysis of 8 MoRTH-Standard Data Book. 3305: {P-3(0-9(29) (3) ; @ scanned with OKEN Scanner