Civil Concrete Paving Work – CIVIL
This article is about Civil Concrete Paving Work and focusing to the engineers, technicians and supervisors. You will find lot of documents related to this article. Just navigate our website www.paktechpoint.com and find more articles. Please! Do not forget to subscribe our You tube channel also. Thanks in Advance.
Civil Concrete Paving Work
Standard paving procedure start from the lower side of the carriageway towards the high side. All pavement layers shall have executed in full compliance with Standard & Specifications for Roadworks.
The pavement layer will be constantly checked ensuring that the pavement layer depth is achieved and maintained. The pavement layers will be laid in accordance with the specification and any cold joints made during the progress of the works will be cut back creating a vertical face and treated in accordance with the specification. The finished level will then be checked and passed off prior to the next layer being laid.
Procedure Civil Concrete Paving Work
1. Concrete Paving shall be in accordance with SAES-S-020 ” (ARAMCO Document in this article)Industrial Drainage and Sewers” and as follow:
a.) Areas subject to spills, wash water, firewater and sidewalk shall be paved with a minimum thickness of 100 mm of reinforced concrete with a minimum reinforcement of 150×150 MW9 x MW9 welded wire fabric. Areas subject to vehicular traffic shall be in accordance with SAES-Q-001 para 4.18b( Aramco standard.
b.) Paving slabs subject to vehicular traffic shall be a minimum thickness of 150 mm of reinforced concrete. The design load shall be as specified in paragraph 4.14 of this standard. The design of the paving shall be based on ACI 360R. Minimum reinforcement shall be 150×150 MW18.7 x MW18.7 welded wire fabric or equivalent.
c.) Paving slope to the catch basins or trenches shall not be less than 1:65 (1.5%). The maximum drop to catch basins from high point of paving shall be 200 mm. (refer to drawing VB-555303.) d.) Where foundations protrude through the paving, 12 mm diameter reinforcing bars, 800 mm long, shall be placed diagonally in the paving at all interior corners.
e.) Concrete paving shall have control or construction joints located at a maximum spacing of 6
meters on centers in both directions.
f.) Expansion joints shall be used in paving adjacent to all poured in place concrete members.
g.) Top of concrete shall be broom finish in one direction perpendicular to traffic.
a.) Curing shall be continuous until compressive strength has reached 70% of the specified strength, but not less than seven (7) days after placement.
b.) Saturated burlaps shall be covered with plasticized vapour barrier and continuously water sprinkled.
c.) Visual inspection of the curing process shall be carried out on a daily basis by QC Inspector. Any deficiency found on the concrete shall be rectified immediately.
SAFETY CONTROL During Civil Concrete Paving Work
The work shall be executed in accordance with the approved safety plan and “Job Hazardous Analysis” attached herewith. Work permit shall be obtained prior to any commencement of the work when required.
All personnel will be issued with the following personal Protective equipment and must be worn at all times.
• Safety helmets
• Safety boots
• Safety Spectacles
• Hand Glove
• Dust Masks
• Ear Defenders
• Respirators as Required
• Wellington Boots
• Cotton overalls with full sleeves shall be worn on construction site
TOOLS & EQUIPMENT During Civil Concrete Paving Work
Equipment to be used (Typical)
Compressor & Breaker
Tack Coat Sprayer