Quality Assurance Handbook for Rural Roads Volume-I - pmgsy

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165 Quality Assurance Handbook for Rural Roads pipe. Make a continuous layer of well compacted sand, moorum or approved granular material, passing 5.6 mm sieve and shaped concentrically, to fit the lower part of the pipe exterior for a minimum 10 per cent of its overall height. The compacted thickness of the granular bedding layer shall not be less than 75 mm. (iii) For expansive soils, provide a layer of sand/moorum on non-expansive material of minimum 450 mm thickness under the bedding. 3 Back filling (i) The back fill of soil shall be clean from borders, large roots, clay lumps retained on 75 mm sieve, stones retained on 26.5 mm sieve and excessive amounts of sods and other vegetable matter. 4 Tolerances The following tolerances are permitted for concrete pipes as per IS 458 i. Overall length ±1 percent of standard length ii. Internal dia ±10 mm iii. Barrel thickness 80-95 mm + 5 mm -2.5 mm Over 95 mm +7 mm -3.5 mm 5. Quality Control Tests 5.1 Tests prior to construction The quality control tests to be carried out prior to construction are indicated in Table 1100.1. TABLE 1100.1: QUALITY CONTROL TESTS PRIOR TO CONSTRUCTION S.No. Material / Work Test / Check Frequency 1. Bricks As in Table 600.6 As in Table 600.6 2. Stones As in Table 700.6 As in Table 700.6 3. Concrete Pipe - Dimensions At factory before delivery - Manufacturing defects - Tolerances (IS:458) - Three edge bearing test (IS:3597) Manufacturer’s certificate 5.2 Tests / Checks during construction The Quality Control Tests / checks to be carried out during construction are indicated in Table 1100.2.
3. Section-1100 TABLE 1100.2: QUALITY CONTROL TESTS DURING CONSTRUCTION S.No. Material / Work Test / Check Frequency 1. Bedding - Materials (As per specification) - Length, width and thickness - Pre formation of cradle to lay pipes in bedding - Top and bottom levels While laying 2. Laying and Jointing of pipe - Invert level Before back filling - Longitudinal gradient - Spacing when 2 or more pipes are laid in a row or staggered columns. - Jointing of pipes 3. Backfill - Filling of trench on both sides During filling earth / granular (simultaneously) material around pipe after - Tamping around pipe laying 4. Cushion over pipes Thickness While filling 5. Brick/Stone Masonry for Clause No 600.7 or Clause 700.7 As per Clause No. 600.7 or 700.7 head walls 6. Side slopes on Head walls - Slope Before construction of guard - Stone pitching stones 5.3 Quality control checks by AE / EE The quality control checks by AE / EE are indicated in Table 1100.3. 1. Carry pavement crust, over pipe culverts 2. Keep the trenches free from water until the pipes are installed and joints hardened. 3. Keep the trench in embankment on either side of pipe to about one-fourth dia of pipe subject to a minimum of 150 mm but not more than one-third dia of pipe or 300 mm. 4. Maintain a longitudinal slope of pipe not flatter than bed slope to ensure self cleaning (suggested minimum value 1/100). TABLE 1100.3: QUALITY CONTROL CHECKS BY AE / EE S. No. Item / Stage Test / Check Designation of Inspecting Officer 1. Head walls / Return walls Plumbness AE 2. Roadway Camber, width, tolerance in level AE 3. Weep holes Size and Spacing AE 4. Protection works - Material used - Thickness & length of apron AE 5. Cushion over pipes Thickness of earthwork over pipes EE 6. General Workmanship - Inlet and outlet gradient of pipes EE - Clear spacing between rows of pipes - Roadway alignment / camber C. Do’s and Don’ts Do’s Don’ts 1. Do not allow humps or dips in the vertical profile of the road at the location of pipe culverts. 2. Do not use defective pipes or those found damaged during laying. 3. Do not permit traffic unless the depth of earth filling above the top of pipe line is at least 600 mm. 166
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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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Page 112 and 113: 3. Section-500 512. MODIFIED BITUME
Page 114 and 115: 3. Section-500 TABLE 512.5 : REQUIR
Page 116 and 117: Annex-III & IV DETERMINATION OF IN-
Page 118 and 119: SIMPLE/HANDFEEL TESTS 600 600.1 Bri
Page 120 and 121: 119 Quality Assurance Handbook for
Page 122 and 123: SECTION 600 121 Quality Assurance H
Page 124 and 125: 3. Section-600 4. Build the courses
Page 126 and 127: 3. Section-600 (v) Storage of mater
Page 128 and 129: 3. Section-600 3.3. Quality Control
Page 130 and 131: 700 : STONE MASONRY FOR STRUCTURES
Page 132 and 133: (v) Stone Masonry 133 Quality Assur
Page 134 and 135: 4.2. Tests / checks during construc
Page 136 and 137: SECTION 800 CONCRETE FOR STRUCTURES
Page 138 and 139: 3. Section-800 2. Proceed with conc
Page 140 and 141: 3. Section-800 TABLE 800.3: REQUIRE
Page 142 and 143: 3. Section-800 c. The strength of a
Page 144 and 145: 3. Section-800 4.2 Tests / checks d
Page 146 and 147: SECTION 900 149 Quality Assurance H
Page 148 and 149: 3. Section-900 2. Lower centering g
Page 150 and 151: 3. Section-900 C. Do’s and Don’
Page 152 and 153: 1000 STEEL REINFORCEMENT A. Methodo
Page 154 and 155: 3.2 Tests during construction 159 Q
Page 156 and 157: 1100: PIPE CULVERTS A. Methodology
Page 160 and 161: SECTION 1200 167 Quality Assurance
Page 162 and 163: 3. Section-1200 A2 Substructures Th
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
Page 188 and 189: 3. Section-1500 TABLE 1501.3: QUALI
Page 190 and 191: 3. Section-1500 2. Check the in-sit
Page 192 and 193: 3. Section-1500 TABLE NO. 1502.3: P
Page 194 and 195: 3. Section-1500 1503: RECTANGULAR C
Page 196 and 197: 3. Section-1500 3.2 Tests during co
Page 198 and 199: 3. Section-1500 1504: INTERLOCKING
Page 200 and 201: 3. Section-1500 2. Quality Control
Page 204 and 205: 3. Section-1600 The prescribed road
Page 206 and 207: 3. Section-1600 C. Do’s and Don
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1700. TRAFFIC SIGNS AND MARKINGS A.
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227 Quality Assurance Handbook for
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1904 : MAINTENANCE OF BITUMINOUS SU
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4.6 Settlement and Upheaval 235 Qua
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2. Surface Finish 237 Quality Assur
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1908 : MAINTENANCE OF CULVERTS AND
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4. Quality Monitoring only in excep
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1. SECTION 100: GENERAL 1.1: Qualit
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10 5R 60 106 25 DIA WELDED 21 DIA 1
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4. Section-300 (b) Carry out an ins
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4. Section-300 Photo 1. Visual Clas
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Test 1 261 Quality Assurance Handbo
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4. Section-500 (iii) Check the aggr
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5. SECTION 1100:PIPE CULVERTS 267 Q
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6. SECTION 1300: PROTECTION WORKS A
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4. Section-1500 In case of cracked
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4. Section-1700 2. Road Markings C
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Appendix-1 1.4 Estimating Plasticit
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Appendix-1 1.8 Simple Gadgets for E
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Appendix-1 (ii) Make two identical
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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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