1. PURPOSE
2. SCOPE
3. REFERENCE
4. RESPONSIBILITIES
5. MATERIALS
6. WORK METHODOLOGY
7. INSPECTION AND TESTING
8. ATTACHMENT
1.0 PURPOSE
The purpose of this Method Statement is to ensure that the grouting repair work activity shall be carried out safely, efficiently and in accordance with the project requirements of Commercial Buildings, Plants and refineries. This also illustrates the sequence of repair works.
2.0 SCOPE
The scope of this Method Statement are details required for the effective grouting repair work activity on steel structure and equipment foundations, where it is required, for the entire project.
3.0 REFERENCES
Schedule Q
Nitomortar TC2000 Technical Data Sheet and Manufacturer’s Recommendation
SAER-5803 Concrete Repair
4.0 RESPONSIBILITIES
4.1 Site Manager shall be responsible in providing all necessary requirements at site such as implementing all
HSE requirement, manpower, materials and equipment to carry out the grouting repair work activity as per
schedule and as per project specification.
4.2 Quality Control Inspector shall be responsible to provide inspection documentation such as RFI Notification
to JGC/DEC and SAUDI ARAMCO. Ensure that the grouting repair work activity are being carried out in
compliance with the quality requirements from materials to installation activities.
4.3 Construction Manager shall be responsible in carrying out safety measures such as preparation of
barricades and warning signs, work permits, etc.
4.4 Safety Officer shall check the work areas and monitor from time to time in the implementation of safety
procedure and assuring that all safety requirement and tools are present at site and in proper good
condition.
5.0 MATERIALS
5.1 Provision
5.1.1 All approved grouting materials for repair and its components are to be supplied by an
approved vendor and shall be submitted to JGC/DEC and JAPID for inspection and
acceptance.
5.1.2 Solvent free epoxy resin Nitomortar TC2000 materials prior to use for the actual grout repair
application shall have available records of materials receiving inspection and accepted as per SATIP-Q-010 and SAIC-Q-1052 compliance.
5.2 Material Handling and Storage
5.2.1 Upon receipt of the grouting materials, visual inspection shall be performed for any packaging
damages during the transportation and if there is any defect found, it shall be immediately
dispose.
5.2.2 All materials shall be unloaded, stored and handled in a manner that it will prevent secure its
shell life. Materials shall be stored as per manufacturer’s recommendation.
5.2.3 All grouting materials shall be verified and match to the batch numbers that are listed in the
certificate of conformity.
6.0 WORK METHODOLOGY
6.1 Surface Preparation
All concrete and mortar substrate must be sound, clean and free from oil, grease and surface contaminants. All loose materials and surface laitance must be removed. Cut the concrete surface using grinder to form a V-groove on the crack concrete. The prepared substrate should be thoroughly clean and blown with oil free air compressor to remove dust and any particles produced during the surface preparation.
6.2 Mixing
The entire contents of the hardener can should be added to the base container and mixed thoroughly until a uniform color and consistency are obtained, taking particular care to scrape the sides and bottom of the containers.
6.3 Application
Apply the mix Nitomortar TC2000 to the prepared substrate by spatula, filling knife or steel float, tight trowelling onto the substrate to ensure positive adhesion and that all blow-holes and defects are completely filled to produce a smooth even finish. Application thickness will vary with profile and alignment of substrate.
Where application of multiple layers is required, this can be accomplished by applying the additional layer between 2 to 8 hours at 25ºC after the first layer application. This time should be reduce at higher temperature. Beyond this open time abrade the surface of Nitomortar TC2000 with sandpaper, then remove the dust generated using clean rags and if necessary, Fosroc Solvent 102 solvent prior to apply the second layer. Alternatively the first layer of Nitomortar TC2000 may be “scratch keyed” whilst wet to provide mechanical key for subsequent layers.
6.4 Finishing
Any ridges left by the trowel can be brushed out while the material is still wet or ground down with a carborundum stone before over-coating.
6.5 Working at High Temperature
At ambient temperatures above 35ºC Nitomortar TC2000 will have shorter pot life and working life. The materials should be stored in the shade or in air-conditioned environments and should not be applied in direct sunlight.
INSPECTION AND TESTING
7.1 Inspection and testing shall be conducted and recorded as per SATIP-Q-001-02 item no. 3.6.
8. ATTACHMENTS
8.1 Job Safety Analysis (JSA)
8.2 Nitomortar TC2000 (Technical Data Sheet)