Quality Assurance Handbook for Rural Roads Volume-I - pmgsy

More documents

Recommendations

Info

1000 STEEL REINFORCEMENT A. Methodology A 1 Bending and Placing 157 Quality Assurance Handbook for Rural Roads 1. Use new steel of the same type and grade for main reinforcement in construction. Use of different type of same grade steel as secondary reinforcement may be allowed exceptionally. 2. Straighten the bars which get bent during transportation or handling. Bend rebars cold to the specified shape and dimensions using a proper bar bender operated by hand or power to obtain correct radii of bands and shape. 3. Place reinforcement bars accurately in position as shown on drawings. Make the skeleton of reinforcement rigid by tying all bars crossing one another at every intersections using annealed binding wire. 4. Position the bars on industrially produced polymer cover blocks or concrete cover blocks of required thickness, to provide cover to reinforcement. 5. Position the vertical projected reinforcement from sub-structure or foundation, by means of timber templates with slots cut in them accurately or with cover blocks tied to the reinforcement. 6. Separate layers of reinforcement by spacer bars at a maximum length of 1m, keeping the minimum dia of spacer bar as next higher size of main reinforcement 7. At construction joints, bend aside reinforcing bars and bend back to the original position, by ensuring that concrete around the bar is not damaged beyond the bend. A 2 Splicing, Welding and Substitution of bar sizes 1. Stagger the lapped splices as per the provisions in IRC:21 and at located points along the span where stresses are low. 2. Keep a minimum spacing between overlapped bars of 25 mm or 1¼ times the maximum size of coarse aggregate whichever is greater. 3. Bars are cleaned of all loose scale, rust, grease etc, before carrying out welding by metal arc welding process 4. Butt weld all bars except bars of dia less than 20 mm, which are to be lap, welded. 5. Locate welded joints well away from the bends and not less than twice the bar dia from a bend. 6. Substitute bars where necessary with the same type and grade after ensuring the minimum area provided is equivalent to the original at each cross section. A 3 Storage and Protection 1. Store reinforcement bars on blocks, racks or platforms or other supports about 300-450 mm above the surface of the ground, in a clean and dry condition.
3. Section-1000 B. Quality Control Requirements 1. Material:- (i) The Steel reinforcement used and works executed shall conform to the requirements given in Table 1000.1 TABLE 1000.1: REQUIREMENTS OF REBARS Grade Designation Bar type conforming to governing Characteristic strength Elastic Modulus BIS Specification (f ) MPa y GPa Fe 240 IS:432 Part I Mild Steel 240 200 Fe 415 IS:1786 High Strength Deformed Bars 415 200 (HYSD) or Thermotechnically Treated (TMT) bars (ii) The workmanship for welding of steel reinforcements shall conform to the specifications given in Table 1000.2 TABLE 1000.2: WORKMANSHIP FOR WELDING Welding of Mild Steel IS:432 Welding Method IS:2751 and IS:9417 MS Electrodes for welding IS: 814 Inspection of Welds IS: 8222 2. Tolerances The Reinforcement shall be placed within tolerances given in Table 1000.3 TABLE 1000.3: TOLERANCES FOR COVER Member/Cover Tolerance Members with effective depth less than 200 mm ± 10 mm Members with effective depth more than 200 mm ± 15 mm Cover + 10 mm (No minus tolerance permitted for cover) 3. Quality Control Tests 3.1 Tests prior to construction The Quality Control tests to be carried out prior to construction are indicated in Table 1000.4 TABLE 1000.4: QUALITY CONTROL TESTS PRIOR TO CONSTRUCTION S. No. Test Frequency 1. Grade, percentage elongation and ultimate tensile strength 3 samples from each supplier (certificate from (For culverts and small bridges)* (IS:432 part 1 and IS:1786) an approved test house) 2. Pitch of the Ribs and Nominal Diameter Random checking (Clause 1002 of MoRD Specifications) 3. Protection of Steel (Clause 1003 of MoRD Specifications) Regularly 4. Substitution of bar sizes Approval by AE/EE before execution of work 5. Detailing of reinforcement cages Approval by AE/EE before execution of work * For Major Works frequency of testing may be increased 158
Page 2 and 3:
Ministry of Rural Development Gover
Page 4 and 5:
FOREWORD PREFACE ABBREVIATIONS QUAL
Page 6 and 7:
Section 1100 PIPE CULVERTS 163 to 1
Page 8 and 9:
PREFACE A good road network has an
Page 10 and 11:
AE : Assistant Engineer AIV : Aggre
Page 12 and 13:
1. BACKGROUND 1 Quality Assurance H
Page 14 and 15:
3 Quality Assurance Handbook for Ru
Page 16 and 17:
Material tests Workmanship tests Se
Page 18 and 19:
2. Quality Management System (iii)
Page 20 and 21:
2. Quality Management System A typi
Page 22 and 23:
105. CONSTRUCTION EQUIPMENT 13 Qual
Page 24 and 25:
B Do’s and Don’ts Do’s Don’
Page 26 and 27:
201 & 202. SITE CLEARANCE A Methodo
Page 28 and 29:
301. EMBANKMENT CONSTRUCTION A Meth
Page 30 and 31:
(vii) Materials in a frozen conditi
Page 32 and 33:
B. Earthwork for Subgrade (Cutting
Page 34 and 35:
302. EARTHWORK IN CUTTING A. Method
Page 36 and 37:
31 Quality Assurance Handbook for R
Page 38 and 39:
Page 40 and 41:
Page 42 and 43:
B. Quality Control Requirements 1.
Page 44 and 45:
SECTION 400 39 Quality Assurance Ha
Page 46 and 47:
3. Section-400 (ii) Atterberg limit
Page 48 and 49:
3. Section-400 C Do’s and Don’t
Page 50 and 51:
3. Section-400 TABLE 402.2: GRADING
Page 52 and 53:
3. Section-400 2. The pulverization
Page 54 and 55:
3. Section-400 Table 403.3 : QUALIT
Page 56 and 57:
3. Section-400 6. The cement stabil
Page 58 and 59:
3. Section-400 6.3 Quality Control
Page 60 and 61:
3. Section-400 14. In case the scre
Page 62 and 63:
3. Section-400 TABLE 405.4: APPROXI
Page 64 and 65:
Page 66 and 67:
3. Section-400 (ii) Grading Require
Page 68 and 69:
3. Section-400 C Do’s and Don’t
Page 70 and 71:
3. Section-400 408. Local materials
Page 72 and 73:
3. Section-400 B. Quality control r
Page 74 and 75:
3. Section-400 409. LIME-FLYASH STA
Page 76 and 77:
3. Section-400 4. Surface Regularit
Page 78 and 79:
3. Section-400 (ii) Slag The broad
Page 80 and 81:
3. Section-400 6. The thickness of
Page 82 and 83:
3. Section-400 2. Horizontal Alignm
Page 84 and 85:
SECTION 500 BITUMINOUS 81 Quality A
Page 86 and 87:
3. Section-500 (iii) In the final l
Page 88 and 89:
3. Section-500 3. The primer should
Page 90 and 91:
3. Section-500 B. Quality Control R
Page 92 and 93:
3. Section-500 TABLE 504.2: PHYSICA
Page 94 and 95:
Page 96 and 97:
3. Section-500 (b) Bitumen The bind
Page 98 and 99:
3. Section-500 TABLE 506.1 RATE OF
Page 100 and 101:
3. Section-500 TABLE 507.1: NOMINAL
Page 102 and 103: 3. Section-500 5. Quality Control T
Page 104 and 105: 3. Section-500 TABLE 508.1.1 : QUAN
Page 106 and 107: 3. Section-500 Table 508.1.3: QUALI
Page 108 and 109: 3. Section-500 B. Quality Control R
Page 110 and 111: 3. Section-500 (ii) Immediately the
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 154 and 155: 3.2 Tests during construction 159 Q
Page 156 and 157: 1100: PIPE CULVERTS A. Methodology
Page 158 and 159: 165 Quality Assurance Handbook for
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 202 and 203:
SECTION 1600 217 Quality Assurance
Page 204 and 205:
3. Section-1600 The prescribed road
Page 206 and 207:
3. Section-1600 C. Do’s and Don
Page 208 and 209:
1700. TRAFFIC SIGNS AND MARKINGS A.
Page 210 and 211:
227 Quality Assurance Handbook for
Page 212 and 213:
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
Page 220 and 221:
1908 : MAINTENANCE OF CULVERTS AND
Page 222 and 223:
Page 224 and 225:
4. Quality Monitoring only in excep
Page 226 and 227:
1. SECTION 100: GENERAL 1.1: Qualit
Page 228 and 229:
Page 230 and 231:
10 5R 60 106 25 DIA WELDED 21 DIA 1
Page 232 and 233:
4. Section-300 (b) Carry out an ins
Page 234 and 235:
4. Section-300 Photo 1. Visual Clas
Page 236 and 237:
Page 238 and 239:
Test 1 261 Quality Assurance Handbo
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
Page 248 and 249:
4. Section-1700 2. Road Markings C
Page 250 and 251:
Appendix-1 1.4 Estimating Plasticit
Page 252 and 253:
Appendix-1 1.8 Simple Gadgets for E
Page 254 and 255:
Appendix-1 (ii) Make two identical
Page 256 and 257:
Appendix-1 (ii) Workability: Take a
Page 258 and 259:
Appendix-2 Curing : Covering the c
Page 260 and 261:
Appendix-3 Sr. Code/ Title of the P
Page 262 and 263:
Page 264 and 265:
Page 266 and 267:
Quality Assurance Handbook for Rura
show all

Quality Assurance Handbook for Rural Roads Volume-I - pmgsy

Create successful ePaper yourself

Delete template?

Save as template?