Quality Assurance Handbook for Rural Roads Volume-I - pmgsy

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3. Section-500 (iii) In the final layer, the mix should be spread slightly proud of the surface so that after rolling, the surface shall be flush with the adjoining surface. (iv) Where required, a Seal Coat should be applied as per the specified procedure. The surface levels should be checked using a 3 m straight edge. (b) Crack Sealing (i) The fine cracks (less than 3 mm in width) should be sealed by Fog Spray, which is a very light application of low viscosity Slow Setting Emulsion. Prior to this treatment, it is important that the surface is thoroughly cleaned, preferably with compressed air. The Fog Spray should be applied at a rate of 0.5-1.0 litre/m 2 of the specified emulsion, using 0.5-1.0 litre/m 2 of the specified emulsion, using an approved hand-held ‘sprayer. For sites in sub-zero temperatures, Medium Curing Cutback as per IS 217can be used. (ii) The wide cracks (more than 3 mm in width) should be filled with crusher dust or other approved fine material passing 4.75 mm sieve to a level about 5 mm below the road surface level. After sweeping the surface clear of dust, Slow Setting emulsion should be poured into the cracks, minimizing any spillage. If spillage does occur, crusher dust should be applied to blot up the spillage. Isolated areas, with wide cracks, shall be cut and patched as per Section 501. 4. Profile Corrective Course (i) Where specified, a profile corrective course should be provided. (ii) After preparing the surface as explained above, the profile corrective course with the specified material should be laid and compacted to the requirements of the particular specification. (iii) A tack coat as per Sub-section 503 should be applied over a primed granular surface or an existing bituminous surface prior to laying the bituminous profile corrective course. (iv) Short sags or depressions in the surface should be corrected by laying profile corrective course in the form of flat wedges (layers). The thickness of layer at any point should not be more than 100 mm. Where the profile corrective course is laid in more than one layer, successive layers should completely extend over and fully cover the underlying layer. B. Quality Control Requirements 1. Material (i) Crusher stone dust for crack filling should be a fine-grained material, passing 4.75 mm sieve. (ii) The bituminous mixture to be used for patching should be either a hot mix or cold mix in accordance with appropriate specifications. (iii) The material for profile corrective course should meet relevant specifications. (iv) The binder for prime coat and crack filling should be a Slow Setting bituminous emulsion (SS-1 grade) as per IS:8887. For sub-zero temperatures, however, a Medium Curing (MC) Cutback conforming to IS:217 can be used. Prime coat should be applied as per Sub-section 502. 84
85 Quality Assurance Handbook for Rural Roads (v) The binder for tack coat and its application should be as per sub-section 503. 2. The prepared surface should comply with the permitted tolerances in respect of horizontal alignment, surface levels and surface regularity specified for base course. (i) Horizontal Alignment Edges of the (±) 30 mm in plain (±)50 mm in hilly pavement layer and rolling terrain terrain (ii) Surface levels Granular Surface (±)15 mm Bituminous Surface (±) 10 mm (iii) Surface Regularity Granular/Bituminous Surface Longitudinal Profile 12 mm Transverse Profile 8 mm C. Do’s and Don’ts Do’s Don’ts 1. Remove dust from the surface being prepared by air jet or other approved means. 2. Where required, an existing bituminous layer should be scarified carefully without undue disturbance to the underlying layers 3. The edges of all potholes should be cut/trimmed vertically 4. In the final layer, the mix should be spread slightly proud of the surface. 5. After back filling in layers, an excavated pothole, ensure the compaction of each layer by a small Roller/Plate Compactor or at least a Rammer 502. PRIME COAT OVER GRANULAR BASE A Methodology 1. Do not lay a bituminous layer without properly preparing the surface. 2. Do not lay any bituminous material on a granular surface without priming the surface. 3. Do not use a bituminous mixture to fill the portion below the level of bituminous construction while filling a pothole. 4. Do not allow any spillage of binder on the surface while pouring the binder into wide cracks. 5. Do not allow traffic over profile corrective course. 1. Bituminous primer should be slow setting bitumen emulsion, use of cutback being restricted to areas having subzero temperature or for emergency operations. 2. The prime coat should be applied only on the top most granular base layer, over which bituminous treatment is to be applied. The granular base surface should be swept clean of dust and loose particles and where required, lightly and uniformly sprinkled with water to moist the surface.
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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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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 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 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 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
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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
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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
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1100: PIPE CULVERTS A. Methodology
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165 Quality Assurance Handbook for
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SECTION 1200 167 Quality Assurance
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3. Section-1200 A2 Substructures Th
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3. Section-1200 4. Provide 75 mm ce
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3. Section-1200 (2) Tolerances 1200
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3. Section-1200 3.2 Tests / checks
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3. Section-1300 A-3 Toe Protection
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3. Section-1300 2. Stones for pitch
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3. Section-1400 3. Give streamline
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3. Section-1400 2. Tests during con
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3. Section-1500 5 Mark location and
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3. Section-1500 (iv) Water Water us
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3. Section-1500 TABLE 1501.3: QUALI
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3. Section-1500 2. Check the in-sit
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3. Section-1500 TABLE NO. 1502.3: P
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3. Section-1500 1503: RECTANGULAR C
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3. Section-1500 3.2 Tests during co
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3. Section-1500 1504: INTERLOCKING
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3. Section-1500 2. Quality Control
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3. Section-1600 The prescribed road
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3. Section-1600 C. Do’s and Don
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1700. TRAFFIC SIGNS AND MARKINGS A.
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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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