PROVISION OF GEYSER, EXHAUST FAN, DEMOLITION OF ABANDONED/DISUSED BUILDINGS, ROOF TREATMENT OF VIDYALAYA BUILDING AND PROVN OF INTERLOCKING BLOCKS AT AF STN TEZPUR

Demolition of cement concrete in ground floor and pavings n. exc. 15 cm thick (un reinforced) below or above ground level, complete all as specified and directed.

Dismantling wrought iron or mild steel work of any description not otherwise provided for, complete all as specified and directed.

Removing building materials etc. (other than spoil payable under items 03028 to 03031 in Section-3-Earthwork) to a distance of exc 1.0 km n.exc 5.00 km Load distance beyond the lead included in the rates, including loading, unloading and stacking at the destination etc, complete all as specified and directed.

Dismantling of plain or corrugated galvalume sheeting, any gauge, thickness, including coverings, complete all as specified and directed.

Dismantling of brick work or stone/ boulder masonry, built in cement mortar including all quoins, pillars etc complete all as specified and as directed.

Taking down wooden frames with shutter (without taking off shutter from the frame) not exe 1.50 Sqm in each, complete all as specified and directed.

Taking down wooden frames with shutter (without taking off shutter from the frame) exe 1.50 and not exc. 4.00 Sqm each, complete all as specified and directed.

Demolition of reinforced roof, floors (other than ground floors), beams, chajjas and similar suspended work, complete all as specified and directed.

(a) Removing of existing APP membrane on the substrate with using torch machine & heating and mechanicals tools for hacking the surfaces all as specified and directed. (b) Chipping & cleaning of surfaces with the help of wire brush, wash the roof with clean water & remove all loose concrete, grease, oil using wire brush and scrubber all as specified and directed. (c) Providing, mixing and applying polymer modified bond coat of Dr. Fixit, pidicrete URP mix in the ratio of 1:1 (URP 1: Cement 1) by volume to make it lump free slurry when applied on the pre wet surface apply a single coat all as specified and directed. (d) Providing mixing and applying Dr fixit pidicrete URP (301) SBR polymer (@minimum 2% bt wt of cement used) modified cement concrete for structural members with ratio 1:2:3 (ordinary portland cement, coarse sand and graded stone aggregate of 10mm maximum size) with 25mm average thickness all as specified and directed.

(e) Apply one coat of self-primer 1 liter of Dr. Fixit Roof seal Classic (based on acrylate PU Hybrid Elastomeric emulsion technology reinforced with Nano fibers) diluted with 500ml water in the ratio 2:1 spreading at the rate of 0.80-10.0/Sq.mt/ liter in the SSD (Saturate Surface Dry) condition. After 3 hours of primer application, apply 1st coat of Dr.Fixit roof seal classic without dilution spreading at the rate of 0.500/liter/Sq mt/coat until all surface is covered. Allow the first coat to dry for approximately 4-6 hours before applying the 2nd coat at 90 degree to the first coat. Ensure there are no pinholes or air bubbles o the membrane surfaces. Apply second coat of Dr Fixit roof seal classic without dilution spreading at the rate of 0.5 liter/sqmt coat to achieve total dry film thickness of 1.00mm at forced coverage at the rate of 1.00 litre/Sq.mt in 2 coats meet the exceeds the ASTM D 6083-97a standard specification. Attains a Tensile strength of ≥ 2.1 N/mm² with 45 GSM glass fiber mesh confirming to ASM D 412: Elongation at break ≥ 300% and crack bridging ability up to 2mm, Solar Reflectance Index as per ASTM E 1980-106, Air cure the coating for 7 day all as specified and directed. Notes: i) Any other equivalent approved product in lieu of Dr Fixit may also be used in the work. ii) Work will be carried out only through authorised applicator of manufacturer and contractor shall furnish manufacturer's warranty for the period as specified in Special Conditions for effectiveness of roof treatment after completion of the work.