Quality Assurance Handbook for Rural Roads Volume-I - pmgsy
Quality Assurance Handbook for Rural Roads Volume-I - pmgsy Quality Assurance Handbook for Rural Roads Volume-I - pmgsy
SECTION 600 121 Quality Assurance Handbook for Rural Roads BRICKWORK FOR STRUCTURES
600 : BRICKWORK FOR STRUCTURES A. Methodology A1 General Brickwork 123 Quality Assurance Handbook for Rural Roads 1. Soak all bricks for a minimum period of one hour before use and remove from tank sufficiently in advance so that they are skin dry before actual laying. 2. Before laying the bricks in foundation, hack the top surface of the foundation block, clean, wet and spread a layer of mortar of 12 mm (minimum) thickness, to prepare the surface. In case of masonry works resting on rock base, lay a leveling layer of 150 mm (average) thickness in concrete of M10 grade. 3. Lay all brickwork in English bond, even and true to line, plumb or specified batter and level. Break all joints in successive courses and lay joints accurately. 4. Lay all bricks with frogs up, if any on a full bed of mortar. Slightly press the bricks so that the mortar gets into all hollow space of bricks to ensure proper adhesion. Flush all joints and pack with mortar, to fill all hollow spaces. 5. Build brickwork in uniform layers so that no part of brickwork shall rise more than one metre above the general construction level, to avoid unequal settlement and improper jointing. 6. Remove all loose bricks and mortar while joining partially set or entirely set brick masonry with new one and roughen and wet with cement slurry to achieve proper bond. In case of vertical and inclined joints, achieve proper bond by inter locking the bricks. 7. Tool all joints on exposed faces to give a concave finish, the thickness of joint not exceeding 10 mm. 8. Keep masonry work in cement mortar constantly moist on all faces for a minimum period of seven days. Leave the top of masonry work flooded with water at the close of the day. During hot weather wet or cover all finished or partly completed work to prevent rapid drying of brickwork. Maintain watering and curing at the close of day’s work or for other period of cessation of works. 9. Erect single scaffolding for plastering, pointing and any finishing in which one end of the putlogs/pole shall rest in the hole provided in the header course of brick masonry. Provide double scaffolding having two independent supports clear of the work when brick work is exposed and not to be finished. A2 Brick masonry arch 1. Erect scaffolding to withstand design loads and allowing approach to each part of work. 2. Erect centering to the correct curvature, supported on joints themselves or independently from the ground below. 3. Lay full scale shape of arch on a leveled platform near the site and mark size of brick and mortar. Place alternate brick lengthwise and widthwise in outer rings of arch. Place remaining bricks in the inner part of arch to have uniform length.
- 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: 3. Section-500 5.3 Quality Control
- 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 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 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 170 and 171: SECTION 1300 179 Quality Assurance
SECTION 600<br />
121<br />
<strong>Quality</strong> <strong>Assurance</strong> <strong>Handbook</strong> <strong>for</strong> <strong>Rural</strong> <strong>Roads</strong><br />
BRICKWORK FOR<br />
STRUCTURES
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