Quality Assurance Handbook for Rural Roads Volume-I - pmgsy

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3. Section-1600 C. Do’s and Don’ts Do’s Don’ts 1. Take precautions for safe guarding the environment (Clause 110 of MoRD Specifications) 2. Take appropriate measures to ensure stability of slopes during construction. Provide the necessary protective measure for safety against erosion, subsidence and recurrent slips and slides. Provide apron below the outlet point of culvert where height of waterfall is liable to cause erosion. 3. Ensure that safety measures including traffic signs, guideposts, railings, parapets are provided at appropriate places. 4. Safeguard the Reference Pillars till the completion of work 5 Identify areas for proper disposal of debris and waste materials before commencement of the work 6. At hairpin bends, pave the entire roadway width to avoid erosion. 7. Provide one cross drain on upper arm of hair pin bend just before the bend to minimize flow of water along the surface of the road. 8. If hill cutting is done by manual labour, then start from back cutting line proceeding outwards to valley face otherwise it will be difficult to rectify the defects left in back-cutting. 9. Always prepare completion plans of completed lengths and compare it with original drawings enclosed with the agreement in regard to widths, curves, camber, super elevation and the longitudinal gradient as per Para 1603.8.1 of “ Specifications for Rural Roads”. 10. Carry out the backfill behind retaining wall/breast wall only after the masonry work of wall has been approved by the Engineer. 11. Ensure proper longitudinal gradient as per drawings and all vertical bumps in grades have been removed. 12. Excavate the hill side drain along with hill side cutting work as per Para 1606.1.3 of MORD Specifications. Keep the bed level of side Drain at least 300 mm below the Subbase or drainage layer or as per desired specifications. 13. Construct the cross drainage works like scuppers or small culverts alongwith the formation cutting work. Excavation for catch pit should also be done simultaneously. 14. Salvage serviceable materials and stack at the earmarked location. 1. Do not throw debris from excavation/blasting haphazardly down the hill slope. 2. Do not carry out blasting operation indiscriminately. 3. Do not provide Hair Pin bends at inner curves. Locate them at stable places having gentle hill slope requiring lesser height of retaining walls and lesser height of back cutting 4. Do not stack serviceable stones over Roadway so as to allow free flow of traffic. 5. Do not allow debris lying along the road. 6. Do not allow bumps or steep grades or reverse grades in longitudinal section of hill roads. 7. Do not construct retaining walls, which are having outer curve in plan, specially at hairpin bends. These are weaker in regard to stability and are easily liable to collapse. Better break such as walls into segments to avoid their bulging tendency. 8. Do not allow gradient defects to continue. These must be got rectified otherwise these will remain for the whole life of the road. 9. Do not spread the aggregate in very very small stretches. This may adversely affect the riding quality of the surface. 10. Do not allow construction of Retaining walls until proper road geometrics has been achieved in hillcutting otherwise this may lead to excessive heights and quantities of R wall masonary creating unnecessary cost escalation. 11. Do not allow any pilferage of reference level pillars & back reference pillars. Keep a watch and ward on reference pillars. If a few level pillars are raised by about one metre in a continuous stretch, same geometrics can be achieved. But this will adversely affect the adjoining jobs where steeper gradient will occur. Similarly if back-cutting line is shifted to 1.0 m in front, it will be difficult to judge its correctness but its overall effects will be less height of cutting and much more quantity of retaining walls may cause huge cost escalation. 12. Do not allow gradient steeper than permissible at hairpin bends. Flatter gradients are always preferable to steeper gradients at such locations. 13. Do not consider the hill road as complete until it has been properly compared with the contract drawings in regard to curve radius & gradient. 222
SECTION 1700 TRAFFIC SIGNS, 223 Quality Assurance Handbook for Rural Roads MARKINGS & OTHER ROAD APPURTENANCES
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Ministry of Rural Development Gover
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FOREWORD PREFACE ABBREVIATIONS QUAL
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Section 1100 PIPE CULVERTS 163 to 1
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PREFACE A good road network has an
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AE : Assistant Engineer AIV : Aggre
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1. BACKGROUND 1 Quality Assurance H
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3 Quality Assurance Handbook for Ru
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Material tests Workmanship tests Se
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2. Quality Management System (iii)
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2. Quality Management System A typi
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105. CONSTRUCTION EQUIPMENT 13 Qual
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B Do’s and Don’ts Do’s Don’
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201 & 202. SITE CLEARANCE A Methodo
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301. EMBANKMENT CONSTRUCTION A Meth
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(vii) Materials in a frozen conditi
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B. Earthwork for Subgrade (Cutting
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302. EARTHWORK IN CUTTING A. Method
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31 Quality Assurance Handbook for R
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B. Quality Control Requirements 1.
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SECTION 400 39 Quality Assurance Ha
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3. Section-400 (ii) Atterberg limit
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3. Section-400 C Do’s and Don’t
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3. Section-400 TABLE 402.2: GRADING
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3. Section-400 2. The pulverization
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3. Section-400 Table 403.3 : QUALIT
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3. Section-400 6. The cement stabil
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3. Section-400 6.3 Quality Control
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3. Section-400 14. In case the scre
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3. Section-400 TABLE 405.4: APPROXI
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3. Section-400 (ii) Grading Require
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3. Section-400 C Do’s and Don’t
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3. Section-400 408. Local materials
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3. Section-400 B. Quality control r
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3. Section-400 409. LIME-FLYASH STA
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3. Section-400 4. Surface Regularit
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3. Section-400 (ii) Slag The broad
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3. Section-400 6. The thickness of
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3. Section-400 2. Horizontal Alignm
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SECTION 500 BITUMINOUS 81 Quality A
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3. Section-500 (iii) In the final l
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3. Section-500 3. The primer should
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3. Section-500 B. Quality Control R
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3. Section-500 TABLE 504.2: PHYSICA
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3. Section-500 (b) Bitumen The bind
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3. Section-500 TABLE 506.1 RATE OF
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3. Section-500 TABLE 507.1: NOMINAL
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3. Section-500 5. Quality Control T
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3. Section-500 TABLE 508.1.1 : QUAN
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3. Section-500 Table 508.1.3: QUALI
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3. Section-500 B. Quality Control R
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3. Section-500 (ii) Immediately the
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3. Section-500 512. MODIFIED BITUME
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3. Section-500 TABLE 512.5 : REQUIR
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Annex-III & IV DETERMINATION OF IN-
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SIMPLE/HANDFEEL TESTS 600 600.1 Bri
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119 Quality Assurance Handbook for
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SECTION 600 121 Quality Assurance H
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3. Section-600 4. Build the courses
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3. Section-600 (v) Storage of mater
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3. Section-600 3.3. Quality Control
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700 : STONE MASONRY FOR STRUCTURES
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(v) Stone Masonry 133 Quality Assur
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4.2. Tests / checks during construc
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SECTION 800 CONCRETE FOR STRUCTURES
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3. Section-800 2. Proceed with conc
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3. Section-800 TABLE 800.3: REQUIRE
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3. Section-800 c. The strength of a
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3. Section-800 4.2 Tests / checks d
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SECTION 900 149 Quality Assurance H
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3. Section-900 2. Lower centering g
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3. Section-900 C. Do’s and Don’
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1000 STEEL REINFORCEMENT A. Methodo
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3.2 Tests during construction 159 Q
Page 156 and 157: 1100: PIPE CULVERTS A. Methodology
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Page 164 and 165: 3. Section-1200 4. Provide 75 mm ce
Page 166 and 167: 3. Section-1200 (2) Tolerances 1200
Page 168 and 169: 3. Section-1200 3.2 Tests / checks
Page 172 and 173: 3. Section-1300 A-3 Toe Protection
Page 174 and 175: 3. Section-1300 2. Stones for pitch
Page 178 and 179: 3. Section-1400 3. Give streamline
Page 180 and 181: 3. Section-1400 2. Tests during con
Page 184 and 185: 3. Section-1500 5 Mark location and
Page 186 and 187: 3. Section-1500 (iv) Water Water us
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Page 200 and 201: 3. Section-1500 2. Quality Control
Page 204 and 205: 3. Section-1600 The prescribed road
Page 208 and 209: 1700. TRAFFIC SIGNS AND MARKINGS A.
Page 214 and 215: 1904 : MAINTENANCE OF BITUMINOUS SU
Page 216 and 217: 4.6 Settlement and Upheaval 235 Qua
Page 218 and 219: 2. Surface Finish 237 Quality Assur
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Page 240 and 241: 4. Section-500 (iii) Check the aggr
Page 242 and 243: 5. SECTION 1100:PIPE CULVERTS 267 Q
Page 244 and 245: 6. SECTION 1300: PROTECTION WORKS A
Page 246 and 247: 4. Section-1500 In case of cracked
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Page 250 and 251: Appendix-1 1.4 Estimating Plasticit
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Appendix-1 (ii) Workability: Take a
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Appendix-2 Curing : Covering the c
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Appendix-3 Sr. Code/ Title of the P
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Quality Assurance Handbook for Rura
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Quality Assurance Handbook for Rural Roads Volume-I - pmgsy

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