EMACO S88 CT PDF

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This method statement mentions the specialized remedial works for segment in precasting yard. This procedure details the sequence of work for viaduct segment to different category of defects, such as:. The following categories of defects are not concerned in this procedure and will be subjected to a Non-Conformance Report. Hazards Analysis and Risks assessment are carried out and attached in this Method Statement. This document will identify all the hazards to ensure adequate control measures and strategies are in place to mitigate as much as possible the risks Appendix A.

All personnel carrying out the work will be properly trained by experienced supervision. Besides, all personnel shall wear the appropriate PPE Personal Protective Equipment , such as Safety shoes, safety helmet, working gloves and safety harness if required. The defects on all precast can be classified into 3 categories according to the consequences the defects may have:.

Any honeycombs with depth not exceed mm and which do not impact on cast items such as anchors, void former, lifting inserts shall be repaired. Defect dimension check will be done on every viaduct segment by the foreman of each production line.

Note: If defect on shear keys side, it shall be repaired after completion span erection. Where the pre-packed product may have different texture finish compared to the segment concrete, a cosmetic finish may be required for the top of the repair finish. The cosmetic finish may be achieved by using mortar from the segment concrete mix or by a prepack product. Upon confirmation of concrete supply by SCC, the prepack product shall be trial tested on site to verify the texture finish to the concrete and then approved for use.

Facebook Twitter Reddit LinkedIn. This procedure details the sequence of work for viaduct segment to different category of defects, such as: Blowholes Spalled concrete edges Honeycombs and voids Cold joint Cracks The following categories of defects are not concerned in this procedure and will be subjected to a Non-Conformance Report.

Prestart and Toolbox talk will reinforce safety requirements prior to commencement of the work. NCR will report the investigation done around the defect, list preventive action to be implemented to avoid the defect to happen again and propose a corrective action. NCR will be submitted to Contractor approval before proceeding with the repair works.

The blowholes must have less than 10mm diameter. Limited damage on any viaduct segment edge which does not violate cover requirements does not require repair. The limit is as follows: Spalled edges at the bottom slab, web and at the top flange of the segment which occur during stripping and bond breaking of the formwork less than 20mm in depth do not require repair.

For larger areas or deeper damage use the repair method of Section 4. Excluded from this category the shear keys side surface for the viaduct segment: according to the previous description no repair shall be done.

Criteria: 0. About Civil Paper. Localized air pockets and minor grout loss less than 5 mm in depth on all viaduct segments do not require repair. Localized damage may occur on any viaduct segment edge either during handling or during stripping of formwork. Localized blowholes and surface spalling more than 5mm in depth and depth not exceed 10mm shall be repaired.

Localized edge damage in excess of depth limit indicated by Section 4. CLASS A: Superficial cracks resulting of atmospheric effects and localized constraint effects, commonly called shrinkage cracks with width greater than 0.

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This method statement mentions the specialized remedial works for segment in precasting yard. This procedure details the sequence of work for viaduct segment to different category of defects, such as:. The following categories of defects are not concerned in this procedure and will be subjected to a Non-Conformance Report. Hazards Analysis and Risks assessment are carried out and attached in this Method Statement. This document will identify all the hazards to ensure adequate control measures and strategies are in place to mitigate as much as possible the risks Appendix A.

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Polyurethane moisture reactive expands in contact with water. G 2 Part polsulphide expansion joint sealant - Horizontal Joints 1. G Formerly Masterflex G. G 2 Part polsulphide expansion joint sealant - Vertical Joints 1. White pigment for solar reflection.

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Method Statement for Precast Segment Remedial Works

Cookies help us deliver our services. By using our services, you agree to our use of cookies. Learn more. MasterEmaco S is a cementitious pre-bagged ready-to-use structural repair mortar in powder form. When mixed with the correct amount of water, it produces a thixotropic, high strength repair mortar, reinforced with acrylic polymer fibres. It exhibits excellent bond characteristics to steel reinforcement and to concrete. MasterEmaco S mortar is shrinkage compensated mortar and contains no metallic aggregate and is chloride free.

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TEC-030100.4-MET-DoR-001(Method statement for Bulged Concrete repair using BASF Emaco S88CT)

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