Tenders Are Invited For Construction Works At Pochalla Secondary School Pochalla, Greater Pibor Administrative Area (Gpaa)

Tenders are invited for Construction Works at Pochalla Secondary School Pochalla, Greater Pibor Administrative Area (Gpaa) 1.1 Mobilisation and demobilisation of the contractor, equipment and labour. 1 Item 1.2 Clear site of all grass, shrubs, debris, undergrowth including small trees not exceeding 600mm girth and cart away from site. 400.00 m² 1.3 Excavate trench for foundation trenches and column bases 2 meters deep, starting from stripped levels. The rate for excavation shall include upholding sides of excavated areas and keeping the excavated areas free from water. 356.48 1.4 Apply concrete (1:3:6) of 800mm wide and 50mm thick as blinding around the wall area and column bases. 198.48 m² 1.5 Construction of 200mm thick solid wall foundation from concrete blocks; load bearing min 5.0 N/mm, reinforced wih 20 gauge 25mm hoop iron strips laid horizontally every alternate course; bedded and jointed in cement and sand (mix 1:3) mortar. 359.00 m² 1.6 Supply and fix T12 steel bar reinforcement including bending, hooking, binding wire, cutting spacers and supporting all in - High Tensile ribbed bar reinforcement to B.S. 4661 to columns, column bases. 854.18 Kg 1.7 Ditto but foundation and ground beams 1,952.10 Kg 1.8 Ditto but surface slab area including verandah with 200mm c/c spacing for the reinforcement bars. 5,476.88 Kg 1.9 Supply and fix sawn formwork to side of columns, column bases, ground beams, and surface slab. 400.00 m² 1.11 Apply 1000 gauge polythene or other equal and approved damp-proof membrane, laid over blinded hardcore (m.s) with 300mm side and end laps (measured nett-allow for laps). 319.23 m² 1.12 Prepare and apply vibrated in-situ concrete 13.25 m³ grade 25 (nominal mix 1:2: 4, 25N/mm2 at 28 days) for columns, column bases. 1.13 Ditto but foundation and ground beams 43.61 m³ 1.14 Ditto but ground slab 46.38 m³ 2 SUPERSTRUCTURE 0.00 0.00 2.1 Damp proof course: bituminous felt: bedded in cement mortar (1:3): 300mm laps 103.00 m 2.2 Construct solid Concrete Block walling including gable wall; load bearing min 5.0 N/mm: reinforced with 20 gauge 25mm hoop iron strips laid horizontally every alternate course: bedded and jointed in cement and sand (1:3) mortar. 265.72 m² 2.3 Ditto but internal walls 86.58 m² 2.4 Ditto but 300mm high parapet walls at the gable end 11.00 m² 2.5 Supply and fix T12 steel bar reinforcement including bending, hooking, binding wire, cutting spacers and supporting all in -High Tensile ribbed bar reinforcement to B.S. 4661 to ring beam. 375.86 Kg 2.6 Ditto but columns 116.56 Kg 2.7 Prepare and apply vibrated in-situ concrete grade 25 (nominal mix 1:2: 4, 25N/mm2 at 28 days) for ring beam and columns 7.72 m³ 2.8 Supply and fix sawn formwork to side of columns, column bases, ground beams, and surface slab. 75.30 m² 2.9 75 x 3mm x 2600mm high RHS post complete with base plate and welding to metal beam. Completed with undercoat and an approved cloour of high gloss paint. 9.00 No 2.10 Ditto but 75 x 50 X 3mm RHS beam support welded to post. 40 m 3 ROOFING 0.00 0.00 3.1 Structural mild steel to BS 4360 grade 43C in roof structure: allow for 5FW continuous welding : 3mm blancked open ends : on coat zinc chromate primer or approved: including 140.00 m drilling holes in steel: complete with all connections, cleats, bolts, nuts, washers etc. to Engineers detail for 60 x 40 x 3mm RHS Rafters & Braces. 3.2 Ditto but 40 x 40 x 3mm SHS tie beams 90.00 m 3.3 Ditto but 40 x 40 x 3mm SHS struts and ties 195.00 m 3.4 Ditto but 150 x 50 x 2mm thick Zed purlins 264.00 m 3.5 40 x 40 x 300mm (average) RHS holding down anchor: one end fish tailed and cast into concrete beam other end welded to roof trusses 30.00 No 3.6 Prepainted roofing sheets( Colour to be approved by Engineer but) : IT5 (Super V) Gauge 28 galvanized corrugated sheets: fixing to roof trusses with appropriate J hooks, rubbers, nails & Filler Blocks to fill Gap between Ridge & Sheet for Roof covering : to slopes exceeding 22.5 degrees to horizontal. 386.86 m² 3.7 Ditto but for translucent sheets 6.00 m² 3.8 Ditto but for ridge cap 35.00 m 3.9 1.5mm thick Mild steel sheeting for fascia and barge board : 200mm girth ; bent profile as required and fixing to metal trusses m/s 76.00 m 3.10 Supply and fix 150x150mm 24gauge galvanized mild steel box gutter with galvanized steel brackets at 600mm centers fixed to fascia board (ms) 76.00 m 3.11 Ditto, 100mm diameter down pipe fixed with brackets to wall at 1000mm maximum centre to centre. Rate should include connection to existing water tank, 600mm swanneck projection, shoe, and painting. 15.00 m 4 FITTINGS AND FINISHING 0.00 0.00 4.1 Supply and fix 1500mmx1600mm standard heavy duty steel casement windows as manufactured by an approved steel fabricator, complete with fixing lugs, ironmongery and fittings all primed with one coat of red oxide before fixing including bedding and pointing in 24.00 No cement and sand (1:4) mortar: oiling and adjusting on completion: two coat gloss paint : 5mm clear glass glazing in putty. 4.2 Supply and fix 600 x 600mm Pressed steel louvers comprising 50 x 3mm plate horizontal louvers set at 45 degrees at 50mm centres complete with mosquito wire 5.00 No 4.3 Supply and fix Pre-cast concrete (1:2:4) as window sill size 200 x 45 mm once sunk, weathered and throated, finished fair face on exposed surfaces 30.00 m 4.4 Supply and fix purpose made steel panel door comprising 100 x 50 x 3 mm RHS framing all round: 900mm high 16 gauge mild steel sheet panel welded to and including framing purpose made 50mm diameter steel tube handles: 5mm clear glass glazing to upper portion: heavy duty hinges : slide bolt assembly with 6mm thick steel hasp for padlock: one coat red oxide primer and two coats gloss paint : complete with 75 x 50mm RHS door frame and fixing to concrete or block work and pointing with approved mastic all. Door overall size 900 x 2600mm high with 500mm louver fanlight ; complete with cylinder lock. 4.00 No 4.5 Apply 15mm first coat of cement and sand (1:4) plaster; 3mm second coat of cement and lime putty (1:5); steel trowelled to internal wall surfaces 416.40 m² 4.6 Apply 20mm thick cement and sand (1:4) rough cast tyrolean plaster with approved colour of weather guard paint to external wall plaster. 167.52 m² 4.7 Apply 20mm thick cement and sand (1:4) normal plaster to external verandah walls. 99.00 m² 4.8 Blackboard: 4200 x 1200mm high blackboard in cement sand moter mix 1:3 steel floted including position for putting chalks on 4200x100mm wide Timber duster holder with chalk groove : painted with one undercoat & two coats blackboard paint 4.00 No 4.9 Prepare and apply cement and sand (1:4) trowelled beds on concrete 100mm high skirting. 12.20 m 4.10 Ditto but 30mm thick screed, steel trowelled smooth including approved joint sealant for the 290.40 m² joint created by the bays within the surface slab 4.11 Prepare and apply three coats of 1st quality Weather Guard paint of premium quality to external verandah walls. 99.00 m² 4.12 Prepare and apply three coat of black bituminous paint to surfaces of plinth. 42.00 m² 4.13 Prepare and apply undercoat and three coats of 1st quality emulsion paint to internal wall surfaces 416.40 m² 4.14 Prepare and apply two coats gloss oil paint to metal surfaces especially surfaces of metal post and roof structure. 9.00 No 4.15 Install mosquito gauze wire fixing to roof structure : including 75mm diameter vent pipes at 1400mm centres as eaves. 90.00 m 5 RAMP 0.00 0.00 5.1 Excavate trench for foundation trenches not less than 0.6 meters deep, starting from stripped levels. The rate for exavation shall include upholding sides of excavated areas and keeping the excavated areas free from water. 4.32 m³ 5.2 Supply and fix T10 steel bar reinforcement including bending, hooking, binding wire, cutting spacers and supporting all in -High Tensile ribbed bar reinforcement to B.S. 4661 at the bottom of trench. 31.97 Kg 5.3 Ditto but ground slab 205.66 Kg 5.4 Construct 200mm thick solid wall from concrete blocks, bedded and jointed in cement and sand (mix 1:3) mortar 7.20 m² 5.5 Apply 1000 gauge polythene or other equal and approved damp-proof membrane, laid over blinded hardcore (m.s) with 300mm side and end laps (measured nett-allow for laps). 10.80 m² 5.6 Prepare and apply vibrated in-situ concrete grade 25 (nominal mix 1:2: 4, 25N/mm2 at 28 days) including BRC, formwork and support timber ensuring a gentle slope of 1:12 1.62 m³ 5.7 Carefully construct a 100mm high kerbline of the edges of the ramp 12.00 m Tender Link : https://comms.southsudanngoforum.org/c/tenders