Quality Assurance Handbook for Rural Roads Volume-I - pmgsy

221
Quality Assurance Handbook for Rural Roads
(ii) Cement Concrete Causeways: Construct causeways as per drawings and conforming to the
requirements of Section 1400
(iii) Pipe Culverts: Construct pipe culverts conforming to requirement of Section 1100.
9. Protection Works
Ensure that protection works are constructed conforming to the Drawings and Section 1300.
10. Safety Measures
(i) Provide traffic signs, guide posts, railings/parapets in accordance with the requirements of
Section 1700.
(ii) Security manpower should be deployed for ensuring that any person including labourers
are removed from the flagged area at least 10 minutes before the firing.
B. Quality Control Requirements
1. Materials
(i) Masonry Work : Conforming to Section 700
(ii) Sub-Base, Base,
Bituminous Works : Conforming to Sections 400 & 500
(iii) Cement Concrete : Conforming to Section 800
(iv) Pitching/Apron : Conforming to Section 1300
(v) Steel : Conforming to Section 1000
2. The tolerances for width of formation, longitudinal grade, grade compensation and superelevation
shall be as follows:
a) Width of formation (+) 5% (-) 1%
b) Longitudinal profile (±) 5% of the specified grade
c) Grade compensation (±) 5% of the specified gradient
d) Super-elevation (±) 5% of the specified super-elevation
3. The tolerances for layout of hairpin bends shall be as follows:
a) Length (+) 0.5%
b) Direction (±) 20 minutes
c) Grade (±) 0.2%
4. The tolerances in the various courses of pavement should conform to the provisions given in the
relevant Sub-sections of this Handbook.