Quality Assurance Handbook for Rural Roads Volume-I - pmgsy

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3. Section-400 Table 403.3 : QUALITY CONTROL TESTS DURING CONSTRUCTION Type of Test Frequency 1. Pulverization of soil clods Atleast 3 tests daily, well spread over the day’s work. 2. Placement Moisture Content (IS:2720 Part 2) -do- 3. Insitu Density measurements (IS:2720 Part 28)` -do- (i) Average of 3 test results shall not be less than the specified degree of compaction. (ii) Individual test values of the degree of compaction attained shall not be less than 1% of the specified degree of compaction. 4. Thickness of Compacted layer. At random 6.3 Quality Control Checks by AE/EE The quality control checks by AE/EE are indicated in Table 403.4. TABLE 403.4 : QUALITY CONTROL CHECKS BY AE/EE Stage Test Frequency Designation of Inspecting Officer 1. Compacted (i) Degree of (a) Minimum 3 tests for each two km length AE lime-treated Compaction or part thereof; allowable tolerance in test layer (IS:2720 Part 28) values as per Table 403.3 (b) Minimum 1 test per km length or part EE thereof (ii) Plasticity Index of Minimum 3 tests for each km length or part AE the lime-treated thereof. mix from the layer. (iii) Unconfined (a) One test for each 500 m length or part AE Compressive thereof. Strength (b) One test for each km length or part thereof. EE (IS:4332 Part 5) when specified, sample extracted from the compacted layer. (iv) Surface Regularity Random Checking AE and Transverse Profile. 50
C Do’s and Don’ts Do’s Don’ts 1. Use lime with purity not less than 70% by weight of CaO. Where lime of the minimum specified purity is not locally available, the total amount of lime to be added shall be proportionately increased with the approval of the Engineer ensuring that the amount of CaO in the total amount of lime added is not lower than the specified value. 2. Ensure uniformity of mixing of lime with soil by mechanical means like tractor-towed rotavator. 3. Look for soft patches, if any, and rectify them by removing or adding fresh material and compacting the same thoroughly. 404. CEMENT TREATED SOIL SUBBASE AND BASE 51 Quality Assurance Handbook for Rural Roads 1. Do not allow the spread lime to be blown away. 2. Do not accept the completion of the mixing process if any white streaks or pockets of lime are visible. 3. Slaked lime supplied in airtight bags should not be stored for more than 3 months. 4. Do not allow any traffic other than mixing equipment to pass over the spread lime till mixing has been completed. 5. Do not allow traffic until the lime treated layer is cured for atleast 7 days. For soils which do not respond to lime treatment and where comparatively higher and faster development of strength and durability characteristics is needed, especially for waterlogged and high rainfall areas, soil stabilization with cement is resorted to. Granular and sandy soils are most suitable for cement stabilization A. Methodology 1. Mix Design should be worked out to determine the optimum quantity of cement to be added to soil for stabilization. A minimum laboratory 7-day unconfined compressive strength of 2.76 MPa is required for use in base courses, whereas in sub-base courses, a minimum laboratory 7-day unconfined compressive strength of 1.7 MPa is considered acceptable. 2. By way of broad guidelines, the requirements of cement content for different soil types are as under:- Sands/Sandy soils/Soil-Gravels 3 to 5 percent Silts/Silty clays of low P1 (30), pre-treatment with lime is resorted to in the first stage to reduce plasticity and to facilitate pulverization. 3. The pulverization of soil clods, meeting the requirements of Table 404.1 and mixing of pulverized soil should be accomplished by tractor-towed implements. TABLE 404.1: SOIL PULVERIZATION REQUIREMENTS FOR CEMENT STABILIZATION IS Sieve Designation Percent passing 26.5 mm 100 5.6 mm 80 4. Cement should be properly stored to avoid prolonged exposure to the atmosphere. 5. The compacted thickness of any layer to be treated should not be less than 100 mm and not be greater than 200 mm provided the plant is accepted by the Engineer.
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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 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 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 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 96 and 97: 3. Section-500 (b) Bitumen The bind
Page 98 and 99: 3. Section-500 TABLE 506.1 RATE OF
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Page 102 and 103: 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
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1100: PIPE CULVERTS A. Methodology
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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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