Construction of 4 Classrooms with 4 Storerooms

• Country: Namibia
• Summary: Construction of 4 Classrooms with 4 Storerooms
• NAT Ref No: 68338831
• Deadline: 13 Jul 2022
• Financier: Self Financed
• Purchaser Ownership: Government
• Tender Value: Refer Document
• Notice Type: Tender
• Document Ref. No.: W/RFQ/ERC - 16/2022/2023
• Purchaser's Detail:
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• Description:
• Quotation are invited for Construction of 4 Classrooms with 4 Storerooms at New Primary School in Walvis Bay Block a Directorate of Education, Arts & Culture. 1 EARTH WORKS 1.1. Excavation in earth not exceeding lm deep: trenches and holes. 50 m3 1.2. Compacting of ground surface including scarifying for a depth of 150 mm, breaking down oversize material adding suitable material where necessary and compacting to 93% mod AASHTO density. 422 m2 1.3. Soil insecticide to bottom of trenches, holes. 84 m2 1.4 Soil insecticide under floors, paving, etc including forming and poisoning shallow furrows against foundation walls etc, filling in furrows and ramming. 258 m2 1.5. Backfilling of trenches and holes. 25 m3 1.6. Earth fillings obtained from excavations and / or prescribed stock piles on site compacted to 93% Mod AASHTO density backfilling behind retaining walls, under floors, steps and apron. 10 m3 1.7 Coarse river sand filling supplied by the contractor under floors etc. 60 m3 1.8 Clearing surplus materials from excavations/stock piles on site to a dumping site. 13 m3 Total 2 DUMP PROOFING OF FLOORS AND WALLS 2.1 One layer of approved 250 micron under surface bed type waterproof sheeting sealed at laps with pressure sensitive tape to sides and bottoms of trenches and holes 84 m2 2.2 One layer of approved 250 micron under surface bed type waterproof sheeting sealed at laps with pressure sensitive tape under surface beds, aprons, etc. 422 m2 2.3. One layer of approved 375 micron embossed damp course in walls (110 mm and 220mm wide) 58 m2 Total 2 DUMP PROOFING OF FLOORS AND WALLS 2.1 One layer of approved 250 micron under surface bed type waterproof sheeting sealed at laps with pressure sensitive tape to sides and bottoms of trenches and holes 84 m2 2.2 One layer of approved 250 micron under surface bed type waterproof sheeting sealed at laps with pressure sensitive tape under surface beds, aprons, etc. 422 m2 2.3. One layer of approved 375 micron embossed damp course in walls (110 mm and 220mm wide) 58 m2 Total 3. CONCRETE WORK (UNREINFORCED AND REINFORCED) 3.1 Making and testing 150x150x150mm concrete strength test cube 4 No. 3.2 30MPa/19mm concrete footings, bases and ground beams. 25 m3 3.3 25MPa/19mm concrete: surface beds cast in panels. 28 m3 3.4 Finishing top surfaces of concrete smooth surface beds. With a wood float. 258 m2 3.5 Expansion joints with 10mm thick closed cell polyethylene between vertical concrete or bricks surfaces: joints not exceeding 300mm wide 100 m2 Total ITEM NO. BRIEF DESCRIPTION OF WORKS QTY UNIT OF MEASURE 4 BRICKWORK IN FOUNDATION 4.1 Brickwork of 14MPa cement bricks in class 1 mortar: half brick wall (Rock face brick) 70 m2 4.2 Brickwork of 7MPa cement bricks in class 1 mortar: half brick wall (Standard brick) 101 m2 Total 5 GALVANISED BRICK REINFORCEMENT 5.1 150mm Wide reinforcement built in horizontally (extra for brick lintels or bands) 1800 m 5.2 75mm Wide reinforcement built in horizontal (extra for brick lintels or bands) 280 m Total 6 BRICKWORK IN SUPERSTRUCTURE 6.1 Brickwork of 7MPa cement bricks in class II mortar one brick wall 370 m2 6.2 Brickwork of 7MPa cement brick in class II mortar half brick wall 61 m2 6.3 Brickwork of 7MPa cement brick in class II mortar one brick wall in beam filling 30 m2 Total 7 GALVANISED HOOP IRON TIES 7.1 1.6mm Galvanised hoop iron tie 30mm wide and 750mm girth built into 114 No. brickwork and wrapped around and spiked to wall plate Total 8 PRESTRESSED PREFABRICATED LINTELS 8.1 105mmx75mm Lintels in length not exceeding 3m 45 m 9 INTERLOCKS AS APRON 9.1 60mm interlocking type SF 35MPa laid on and including 20mm river sand bed to falls and currents, including all cutting and waste. 112 m2 Total BRIEF DESCRIPTION OF WORKS 10.1 NATURAL GREY FIBRE CEMENT WINDOW SEALS IN SINGLE LENGTHS BEDDED IN CLASS 1 MORTAR INCLUDING METAL FIXING LUGS_________________________________________________ 15mmxl50mm sills set flat and slightly projecting._________ QTY UNIT OF MEASURE 40 m Total VERMIN PROOF AIR BRICKS AND VENTS INCLUDING FORMING OPENING WALL AND RENDERING SMOOTH ALL ROUND IN CEMENT MORTAR_______________________________ 11.1 229 x 152mm Clay vermin proof air brick_______________ Total 6 No. 12 ROOF CONSTRUCTION___________________________________________________ Sawn Softwood Grade 4 with nailed or bolted connections 38x114mm 72 Timber in wall plates, rafters , beams, Joists, hangers, runners etc._ Prefabricated double pitch roof trusses of Grade V/M6 timber with a pitch of 45 exceeding 8m and not exceeding 10m and an overhang of not exceeding m No. 12.3 900mm at eaves on both sides, 50mmx 152mm timber.___________________ Medium density fibre cement fascias and bargeboards 15mm fascia and 85 m bargeboard 225mm wide plain finished with including standard H- profile jointing strips and comer jointers fixed to end of rafters and battens with and including 40x40 x3mm mild steel angles 100mm long bolted to rafters 12.4 38x50mm Brandering (roof covering) 370 m2 Total 13 ROOF COVERING ( Roof tiles) 13.1 Approved concrete roof tiles ‘bond double roman profile- fixed in strict accordance with the manufacturer-s instructions on an underlay of 400 micron plastic sheeting with 150mm lapped and sealed joints and nailed through underlay with non-corrosive tile nails and/or fixed with suitable non-corrosive clips as required to and including 3 8x3 8mm swan softwood battens at maximum 320mm centres with the battens fixed to roof trusses (trusses elsewhere measured) 370 m2 13.2 V-ridge capping 36 m 13.3 V-ridge end cap 2 No. 13.4 Close cut mitred valley including bituminous felt soakers beneath and additional battens complete 70 m2 Total ITEM NO. BRIEF DESCRIPTION OF WORKS QTY UNIT OF MEASURE 14 CEILINGS 14.1 Sawn Softwood 38x50mm Brandering at 400mm centres in one direction at joints and against walls (for ceiling) 255 m2 14.2 9.5mm gypsum plasterboard ceiling board in full length sheet fixed to brandering ( elsewhere measured) with and including wire scrim and ‘Rhinolite- skimmed over all joints between sheets 255 m2 Total 15 CORNICES 15.1 70mm Coved gypsum cornice planted on 168 m 15.2 Extra over gypsum plasterboard ceiling for trap door size 600x 600mm formed of 32x47mm wrot softwood rebated framing around with cross bracing covered with 9.5mm gypsum plasterboard ceiling board and fitted into opening 2 No. Total 16 DOORS AND FRAMES 16.1 69x102mm wrot meranti rebated door frame to suit 44mm door size 813x2032mm high countersunk plugged, screwed and pelleted to wall 8 No. 16.2 WrotMeranti 44mm solid panelled door size 813x2032mm high (Out Side Door) 4 No. 16.2 Wrot Meranti 40mm semi-solid flush door with hard wood venier on both sides and concealed hard wood edge strips size 813x2032mm high (Inside Door) 4 No. 16.3 32mm rubber door stopper fixed to wall/ floors 8 No. Total 17 IRONMONGERY AND HINGES 17.1 Hinges: 100x75mm brass butt hinges with brass pin and nylon washers 16 No. 17.2 Cylinder locks Euro profile single cylinder lock with Euro profile lock case and brass forend 8 No. Total 18 ALUMINIUM WINDOWS 18.1 Natural anodized aluminium windows glazed with including 4mm clear float glass window type HS 129 to suit opening size 900x600mmm high: storeroom windows. 4 No. 18.2 Natural anodized aluminium windows glazed with and including 4mm clear float glass window types HS 159 to suit opening size 1200 x 900mm high: front windows. 8 No. 18.3 Natural anodized aluminium window glazed with and including 4mm clear float glass window type HS 1512 to suit opening size 1500x 1200mm high: 12 No. back windows. 18.4 Burglars Bar of 12mm diameter painted mild steel solid bar welded to 900x600mm high: store window 8 m2 Total 19 EXTERNAL AND INTERNAL WALL PLASTERING 19.1 One coat cement plaster wood floated smooth on brickwork to wall (External) 286 m2 19.2 One coat compo plaster steel troweled smooth on brickwork to wall (Internal) 504 m2 19.3 One coat compo plaster steel troweled smooth on brickwork to walls narrow widths 35 m2 Total 20. FLOOR TILING 20.1 Floor to patterns 255 m2 20.2 Ceramic tiles 305x305x5mm (material) 255 m2 20.3 Skirting ceramic tiles 168 m 20.4 PVC tiling edge strips 5mm 168 m 20.5 Aluminium tiling edge strips 5mm 4 m Total 22 PAINTWORK 22.1 One coat alkali - resistant plaster primer and two coats Acrylic PVA paint on external smooth plastered walls 286 m2 22.2 One coat alkali - resistant plaster primer, one coat undercoat and two coats eggshell enamel paint on internal smooth plastered walls and columns 504 m2 22.3 One coat primer or sealers, one under coat and two coats Acrylic PVA paint on Fascias and eaves soffit lining 19 m2 22.4 One coat sealer and two coats exterior quality PVA emulsion paint on ceilings, including cornices and cover strips 255 m2 ITEM NO. BRIEF DESCRIPTION OF WORKS QTY UNIT OF MEASURE 22.5 One coat oil based stain and two coats clear matt polyurethane varnish on joinery fittings, shelving, slatted seating, etc 37 m2 22.6 One coat wood primer, one coats undercoat and coat gloss enamel paint on door frames 13 m2 22.7 One coat wood primer, one coat undercoat and coat gloss enamel paint on flush doors 29 m2 22.8 One coat wood primer, one coat undercoat and coat gloss enamel paint on exposed trusses, rafters, beams, purlins, etc. 18 m2 Total 23 CABINET, PINNING AND WRITING BOARDS 23.1 Metal storage cabinet size 900x450x1800mm high with four shelves (Teachers cabinet) 4 No. 23.2 Wall mounted chalkboard with aluminium chalkrail plugged to walls: chalkboard size 2700x1140mm high. 4 No. 23.3 Pinning board size 1500x900mm high overall 8 No. Total 24 JOINERY WORKS 24.1 Wrot Meranti 22x200mm chair r
• Documents:

 Tender Notice