ncr repair

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method repair honey comb

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SMC INFRA LLC

PROJECT: PALM MALL MUSCAT

NCR-Corrective Action

PALM MALL MUSCAT

NCR-Corrective Action

Client:Tamani Global Development & Investment LLC(TGDT)

Project Management:Project Management Consultancy(PMC)

Consultant:Engineering Innovation Design & Consulting LLC (EIDC)

Main Contractor:SMC INFRA LLC

LOCATION: 1) NCR NO:005 & 0062) Over wall of lift at Grid C/38,39 And staircase at Grid D/38,39.3) Over Columns at Grid E/F -34 to 39.4) Cracks over footing Grid K/14 to16& Grid N/10 to 12. METHODOLOGY OF REPAIRINGTreatment of segregation area: Surface preparation: Water jet and wire brush the honey combed areas to remove loose particles, deposits, rust, oil, grease, fungus, ect on the surface of the honey combed areas and allow the surface to dry. The loosely bond concrete of the honey combed area shall be chipped out using chisel & hammer / concrete cutting machine and the debris is remove. Where ever completed finishing work without approval area again chipped out and carryout the repair work using approved material and As per EIDC Engineer Instructed method.

Treatment of surface cracks (shrinkage) We absorbed crack area not developed more and here Informed to you we applied using approved material below the methods.a) Surface PreparationThe cracks to be sealed shall be saw cut or chiseled to form a V groove of approximately of 6mmX 6mm. The grooves shall be cleaned to remove all the loose particles, dust ect.The groove shall be sprinkled with clean water before applying the sealing mortar.ApplicationThe mixed approved material past is filled into the grooved by gloved hand and the surface finished using a putty blade. This is continued till the full length of crack is sealed.

Material preparation: The repaired are to be saturated & the surface is to dry condition prior to application of the approved repairing material. The approved repairing material should be mixed manual. The required amount of gauging water should be placed in the mixing bucket and the mixing should the specified amount of water to obtain the desired consistency maximum of 3.5 litres per 25kg beg. Should be placed in a single continuous operation. Poured material should be introduced slowly to prevent entrapment of air. It is essential to place the mixed material the mixed material within 30minutes of batching. All cementations material curing is of vital importance to ensure that optimum properties are obtained. Cure the repair mortar for a minimum duration of 7days.

1. MANPOWER REQUIREMENT

1) Site engineer

2) Site supervisors

3) Safety assistant

4) Foreman

5) Charge hand

6) Masons

7) Labor

2. EQUIPMENT REQUIREMENT

1) Approved repairing mortar

2) Potable Water

3) Tray

4) Chisel

5) Hammer

6) Scaffold (if required)

7) Trowel

8) Steel float

3. HEALTH AND SAFETY PROVISION

All the personal involved in the application should wear the safety masks. Avoid breathing spray and contact with skin when in use Must wear protection clothing, gloves. Wash contaminated skin and clothing after use. While using scaffolding working at height above 1.5metres ,safety harness to be worn wherever necessary.

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