CLE211 - Important Questions

7/27/2019 CLE211 - Important Questions

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CE 1035 - REPAIR AND REHABILITATIONOF STRUCTT'RES. PART A

{ Define permeabiliry._-- Classifu the cracks based on their size.* Erplain the rnechanism of corrosion inhibitors., I }lrlis meanr byperuneable andinpermeable concrere..:a l:-n"t are construction error in concrete structures.'- \\/henqo you ca[ a structure as a distress structure. -) Lta,$1 * .t*"#(^(k*),} l:^Tii1llh: facrors reiated *,irh;;"""ability of concrete#. 1;3*:.ry:rT non_destructirc testing method of concrete.:) w nat rs Sutphur infiltrated concrete.i U. Name the techniques available to repair the cracks.11' what is the role of Fibres in the Fibre reinforced con'rete.i 2. what is the effect ofrebar corrosion. :-- !r* * "fiilh. $8 .sfr*13' What is guniting u "- ----( - -1 4. Define,,Durable concrste,,.1l Il*" any three calrses of Failure in concrete structures.16. ljst out the corrosionprotectionMetfrra"-: *"tflL/17' what is the need for crack contror in Rcc st*.toBri*18. What is ferro cement? ,{rnl-hy ,W N*d,L

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what is the diffe,rence between Rehab,itation and Retrofittifi.What is the use of maintenance.of defects in concrete.- io"e.Llu, ,fireJb,,rM - d.{i"r"Ur, ,".1;u^are classified based on their width. t U UWhat do fril mean by *girr".rrd drrrliition.Write the short notes on weekly maintenance.37. What is vacuum concrete38' Give any two disadvantages ofFRP which is used for strengthing of concrete.9. Dfferenti ate reinforced "-or,rrut., *A fen o c e ment.40. Define and the terns (a) Shoring tUl Unar.pio;ie

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PART B,. (ti F&at are causes of crackingYIovy the cracks can be measured and reported.(ii) Discuss the effects ofthe chsndcals and durability of concrete structures.2. Describe the following corrosion protection.a) Cathodic protectionb) Corrosion resistant steels.,a.3. (@what are the various causes of distress in concrete structures.(ii) Dscuss the irifluence of'carbonation and sulphfre affaok on the dwability oftoncrete.

itf )*,*'are the methods of diagnosis the defects in situ quality of RC strucrures?\--"pir.*s the urtrasonic purseielocify techniques *itt rrut sketches5' (i) Explain clearly the mechanism with chemical equations inr,nlved in thecorrosion ofsteel in concrete.(ii) Explain the factors influencing corrosion of steer in concrete.6. Explain in details the causes, prevention and repair ofcracks in building.7 ' Explain the manufacturingprocess of corrosion resistant steel. Also discuss aboutthe mechanism of corrosion inhibitors./-\l/Explain in detail the various structural and non-structural cracks. Explain thecauges.9'.ExPlain with sketches about the various techniques used in the repair of cracks.., 1\{tointain any two non-destructive tests for concrete assessment startingtheirYimitations.11' Explain in detail about the Gunite (or) shotcrete process with neat sketch.12. V/rite short notes on the following.(i) Cathodic protection(ii) Vacuum concrete

(iii) Fibre reinforced concrete"(iv) polymer ooating.13. (i) Describe deterioration of concrete due to Erosion by ab,rasi,on Erosion bvCaitationand due to freeze_ thaw.effe :ri "[ "y

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14' How do you broadly crassify the cracks in,terms of their effects./^f\()Exniain the assessment procedure for evaruating damages in a strucfures\ffi'Expiuin the non - destrucrive test to frnd the srrengttrr of con;refe -. [",/r."--17

.(ilExplainpolymer concrete & porymer modified concreteii) Explain coating,yrr".* uffid in concrete repar.rs/-\ what are the causes offa,ures of structures? Dscuss themin deta*. ,/-

,:.-?r,ftyain in att[r the repair bv jacketing technique. what materiars are used for20' write about the roles of epoxies and poly urethanes in the protection of concrete.21. (i) Explain shoring an! yder pinning in derails(ii) Exprain rrprtar & Wr#i;; firfing hotes.22.Wite short notes on(i) Stitching a dormant crack

!i: I JTk"ing the i rot rt"Jroundati on(iii) Grouting techniques - - -.^-'(iv) Shortcreteure forqld: lt: various *p."*iffiz4' write brieflv about *il;;d;;l;ffi;8, *,n"*t diagrarn25. Exolain fhe.,,^,,,,* ^^-xplain the vacuum concrete process with neat sketch.Explain cteartvrhc o.-*^r ....- r *(9'dY "\;'--,,i..[irt* y',wd- ,NA \V.\c,,7.Exptainwirh near sketches Retrofitring "d drr*;;;Rcc%rtu "9. oreinforced concrete. y fibre\

" ::::1i:11'o*:"d*e of EPoXy/ potymer coaring of rebars duringrehabilif ation of work.29. plain any one demolition technique for d,apicrated structures.

ain in details the various facets of maintenance. J ($**in in detail the various structurar and nonstructural cracks Exprain the

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3& nrtti,. ritt neat sketches about the jacketing and plate bonding tectrniques fortqlired seismically affected lrcarn coiunn joint in a building.3,A,Ihibe tte procedure of,coating concrete and steel reinforcemerit to avoid u o

rorim-v^ w4!*r6 wL o w-,' r *a"e,\ro b4//- PY|o .$ffirt[*r*,.rffid n ^)o\ ..r" y'giEthe renredial nrcasures for such problern klgU . VI -n ,,^. gr$"**{-#t*ry**tr-

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CLE211 - Important Questions