After the formal appointment of the project by client, all site plans, approved designs, material submittals and drawings will be checked. Once all permissions are granted and received, the team will be appointed and briefed before project commencement.
Material submittal should have details of mix design, steel reinforcement, repairing materials and water-based protective coatings are to be used for the project. The material submittal shall be submitted for approval of the Engineer. Only approved material shall be incorporated in permanent works. Approval of Material Submittal and Trial Mix
In order to ensure sufficient Quality Control during the operations of formwork, reinforcement, concreting, curing and dispatch; the Platforms for manufacturing the precast concrete elements are divided into 3 bays which is Concreting Bay, Curing Bay and Dispatch Bay.Moulds are prepared either in ply-wood, Fiber or in steel based on project requirement. Silicon jelly is used to arrest the gaps in the moulds. For every casting the moulds will be checked and approved by the QA/QC Engineer.
The mould is cleaned and approved mould release agent is applied prior to installation. The mould necessary checks of dimensions and verticality is carried out by the foreman and checked by the QA/QC Inspector. Silicon jelly is used to arrest the gaps. Reinforcement cut and bent as per approved reinforcement shop drawing shall be fixed in position with the help of chair spacers. Minimum cover shall be maintained to the reinforcement of the precast concrete boundary wall as per the drawing. Any inserts mentioned in the shop drawings shall be installed with proper lugs and sufficient concrete cover is maintained.
For each pour of concrete, the temperature, slump/workability of the Concrete is ensured by QC Inspector, concrete samples (a set of 4 numbers per sample) is taken for testing 7days and 28days strength for every 25m³ concrete or in accordance with Contract Specifications. The test results of each pour shall be submitted for Engineer’s review and approval. Concrete will be placed in layers of 30cm inside the formwork and 40mm needle vibrators will be used for uniform compaction of concrete. The testing of concrete will be conducted either in-house or third party as per the contract agreement.
The concreted elements shall be covered with moist hessian cloth until the outer formwork is removed or curing compound will apply as per the technical data sheet. Outer formwork is removed when we get the sufficient strength. The precast concrete elements will be shifted upon concrete strength test results confirms that the concrete has attained the required strength for shifting these elements to Curing Bay. The Curing of the precast concrete elements shall be continued for remaining period minimum of 3 days for normal water curing. Curing compounds also used upon the requirement. Curing compounds are applied based on technical data sheet
Upon testing the concrete samples and confirming that the concrete has attained required strength, the precast concrete elements shall be painted with protective coating as per the approved drawing. The paint shall be applied with a Brush, roll or suitable spraying machine as stated in method of application complying HSE conditions during the application. New surfaces must be cleaned to remove all traces of grease, oil and other foreign particles. Once the painting is completed, the same shall be labelled with QC Check (Green Tag) and shifted to Dispatch Bay. The precast concrete elements in Dispatch Bay with Green Tags only shall be allowed for shifting to site.
Approved precast concrete boundary wall elements for shifting to site shall be shifted to the approved designated site using trailers or other means of transport.
After the formal appointment of the project by client, all site plans, approved designs, material submittals and drawings will be checked. Once all permissions are granted and received, the team will be appointed and briefed before project commencement.
The mould is cleaned and approved mould release agent is applied prior to installation. The mould necessary checks of dimensions and verticality is carried out by the foreman and checked by the QA/QC Inspector. Silicon jelly is used to arrest the gaps. Reinforcement cut and bent as per approved reinforcement shop drawing shall be fixed in position with the help of chair spacers. Minimum cover shall be maintained to the reinforcement of the precast concrete boundary wall as per the drawing. Any inserts mentioned in the shop drawings shall be installed with proper lugs and sufficient concrete cover is maintained.
Upon testing the concrete samples and confirming that the concrete has attained required strength, the precast concrete elements shall be painted with protective coating as per the approved drawing. The paint shall be applied with a Brush, roll or suitable spraying machine as stated in method of application complying HSE conditions during the application. New surfaces must be cleaned to remove all traces of grease, oil and other foreign particles. Once the painting is completed, the same shall be labelled with QC Check (Green Tag) and shifted to Dispatch Bay. The precast concrete elements in Dispatch Bay with Green Tags only shall be allowed for shifting to site.
Material submittal should have details of mix design, steel reinforcement, repairing materials and water-based protective coatings are to be used for the project. The material submittal shall be submitted for approval of the Engineer. Only approved material shall be incorporated in permanent works.
For each pour of concrete, the temperature, slump/workability of the Concrete is ensured by QC Inspector, concrete samples (a set of 4 numbers per sample) is taken for testing 7days and 28days strength for every 25m³ concrete or in accordance with Contract Specifications. The test results of each pour shall be submitted for Engineer’s review and approval. Concrete will be placed in layers of 30cm inside the formwork and 40mm needle vibrators will be used for uniform compaction of concrete. The testing of concrete will be conducted either in-house or third party as per the contract agreement.
Approved precast concrete boundary wall elements for shifting to site shall be shifted to the approved designated site using trailers or other means of transport.
In order to ensure sufficient Quality Control during the operations of formwork, reinforcement, concreting, curing and dispatch; the Platforms for manufacturing the precast concrete elements are divided into 3 bays which is Concreting Bay, Curing Bay and Dispatch Bay.Moulds are prepared either in ply-wood, Fiber or in steel based on project requirement. Silicon jelly is used to arrest the gaps in the moulds. For every casting the moulds will be checked and approved by the QA/QC Engineer.
The concreted elements shall be covered with moist hessian cloth until the outer formwork is removed or curing compound will apply as per the technical data sheet. Outer formwork is removed when we get the sufficient strength. The precast concrete elements will be shifted upon concrete strength test results confirms that the concrete has attained the required strength for shifting these elements to Curing Bay. The Curing of the precast concrete elements shall be continued for remaining period minimum of 3 days for normal water curing. Curing compounds also used upon the requirement. Curing compounds are applied based on technical data sheet
