Providing Damp proof treatment to the expansion joints and Terrace for arresting Leakges through roof / wall in MathruSri Vakulamatha rest house at Tirumala

Dismantling, clearing away and carefully stacking materials useful for reuse old cement mortar plaster.

Dimolishing and disposal of unserviceable materials within 100 metres lead unreinforced cement concrete more than 15 Cm thickness

Conveyance of excavated surplus earth/debris to a distance 2 kms from the site of work to the place specified by the Engineer-in-Charge including loading and unloading etc., complete as directed during execution.

Cutting holes in Brick masonry & repairs Labour charges only

Cutting holes in RCC slabs Floor & Repairs Labour charges only

Providing weather proof course with Screeding concrete in CC(1:2:4), 25mm average thickness using 6 to 10mm nominal size HBG crushed metal chips, screeding duly embedding 24G chicken mesh with necessary overlap etc.., and finishing the surface neatly and rounding the edges at parapet walls, columns etc., excluding cost of chicken mesh but including cost and conveyance of all materials etc, complete as directed during execution. - do - in Sixth Floor.

Providing impervious coat to exposed RCC roof slab surface with CM (1:3), with 500 ml of liquid concentrated micronized cement water proof compound/ 100 ml of integral cement water proofing admixture complies with IS:2645-2003 of approved make per 50 kg bag of cement laid over roof when it is green including cost of all materials, conveyance charges of materials and all operational, incidental and labour charges for mixing mortar, laying, rendering smooth and thread lining, curing, rounding off juctions of wall and slab etc., complete for finished item of work

Repairing and sealing of cracks on plaster/masonry walls

The following procedure is to be adopted for repairing and sealing of cracks on Plaster/masonry walls. 1) The surface at cracks is to be cleaned from all dirt, oil, grease, fungus, loose particles by using wire brush. 2) The “V” shaped grooves shall be cut along the locations of all visible cracks and the grooves shall be cleaned to remove all the loose particles, dust etc. 3) The “V” grooves shall be 6 x 6 mm or as directed by the Engineer in charge. 4) The grooves shall be sprinkled with clean water before applying the sealing material. 5) Then the “V” grooves shall be filled with non shrink, cementitious, crack sealer/ crackfil material/ paste with a putty blade. 6) The treated area is to be cured for sufficient time (24 hours) before applying plastering/ painting.

The following materials are to be used depending upon the manufacturer. MAKE CRACKFIL MATERIAL/PASTE Dr.FIXIT DR.FIXIT Crack-X FOSROC Renderoc CS Crack Sealer Chemicals(Ind.)Pvt. Ltd. Note: The rate does not include plastering or painting which is to be paid separately but includes cost of chemical used as filler material

Repair to damaged concrete (ceiling / Beams/ columns)

The following procedure is to be adopted to repair the damaged concrete on ceiling/ Beams/ columns.

1) Temporary and adequate support by properly designing, staging and shuttering consisting of steel/ wooden props from the floor is to be provided. 2)(a) The damaged/ loose/ spalled/ friable concrete is to be removed by wire brushing, Scraping etc., to expose rusted reinforcement. (b) If the existing reinforcement is not damaged in terms of its size, strength, bonding properties etc., then step (4) is to be followed. (c) If the existing reinforcement (mild or tor steel) is damaged, then the same is to be replaced with new bars similar to the existing bars and then step (4) is to be followed. 3) All loose scale and corrosion deposits on the reinforcement shall be removed by Wire brushing, scraping or other mechanical means. 4) Two coats of Anti corrosive coating for steel are to be applied to avoid future rusting. 5) The exposed surface is to be finished neatly, by cement mortar duly adding suitable Polymer modifier bonding agent. 6) Curing is to be done by using a water based concrete curing compound.

The following materials are to be used depending upon the manufacturer MAKE ANTI-CORROSIVE AGENT a) Dr.FIXIT DR.Fixit Rust remover b)FOSROC Nitozinc Primer Chemicals(Ind.) Pvt. Ltd. MAKE BONDING AGENT a)Dr.FIXIT DR.Fixit Micro concrete b)FOSROC Nitobond SBR Chemicals(Ind.) Pvt. Ltd. MAKE CURING COMPOUND a) Dr.FIXIT Water b)FOSROC Concure WB Chemicals(Ind.) Pvt. Ltd.

NOTE: 1) The rate is excluding cost of scaffolding and plastering.

2) The rate does not include the cost of the new reinforcement replacing the existing reinforcement. If the new reinforcement is placed, the cost of the same is to be paid separately.

SPECIALISED FIVE LAYER SYSTEM OF WATERPROOFING TREATMENT TO THE TERRACE WITH FOLLOWING SPECIFICATION.

Providing and laying five layer water proofing cum heat insulation treatment (MIX GUARD HR5) over existing roof slab, all as directed by Engineer-in-charge and as per the following specification: Arresting roof leakage by providing five layer treatment with MIX GUARD HR5 – five layer system of FAB Chemicals or equivalent elastomeric water proofing and heat reflective coating comprising of the following:

A.Surface preparation – Cleaning the whole area with wire brush. Chipping all loose/dead mortar thoroughly. Cleaning the entire area with high pressure water jetting to remove all loose particles/grease/oil/dust/dirt/curing compound etc. Surface cracks must be filled with Mix Build GP and wide cracks must be cut and repaired with Mix build SR polymer modified repair mortar. B) Application of Mix Guard HR5 – five layer system with brush.

1. First layer – MIX PRIME AC-100 Apply base prime coat using Mix Prime AC100 compound which is produced by mixing Mix Prime AC-100 with water and cement at the ratio 2:1:3 (Mix prime AC 100 : water : cement) by volume with a slow speed drill with paddle. This compound shall be applied with sufficient thickness to cover the holes/pores/cracks @ 1 lit/Sqm area (0.35 Lt of MIX Prime AC100/Sqm)

2. Second Layer – MIX MAT GFM 70 / 50 Mix mat GFM70/50 Synthetic fibre reinforced mesh shall be spread on the top of the primer/in mix with Mix prime AC100 in the wet condition and allow to dry for a period of 6 to 8 hours. A minimum overlap of 100 mm to be provided at the joints i.e. at 1.10 Sqm/Sqm. The Mix mat GFM Mesh shall confirm to the technical specification as per the manufacturers data sheet (40 Gram / Sqm as a weight )

3. Third Layer – MIX PRIME AC Apply one coat of Mix Prime AC water based acrylic primer (with undiluted material) over the MIX mat GFM mesh @ 0.25 Kg/Sqm as a water tight primer in white colour and allow to dry for a period of 6 hours.

4. Fourth layer – MIX GUARD HR (Base Coat) Apply one coat of Mix Guard HR acrylic based water proof and weather proof coating in white colour (with undiluted material) @ 0.50 kg/sq.m as a membrane on top of Mix prime AC and allow to dry for a period of 6 hours.

5. Fifth Layer – Mix Guard HR Extra (Top Coat) Apply one coat of Mix Guard Hr Extra acrylic based fibre reinforced water proofing and heat reflective membrane in white colour on top of Mix Guard HR base coat (With undiluted material) @ 0.50 kg/sq.m. And allow to dry the system for period of 24 hours to allow foot traffic.

Note: All the materials namely Mix Prime AC100, Mix Mat GFM70/50, Mix Prime AC, Mix Guard HR and Mix Guard HR Extra shall be procured for the entire work order quantity based on the consumption/coverage area as specified in the specification and shall be ensured by Engineer-in-charge. The Mix Guard HR5 layer system shall be carried out as per FAB Specifications.

Tensile strength : 6.00 N/mm2 (ASTM D412 – 87) Adhesion to substance : > 1.5 N/mm2 (ASTM D4541) for MIX PRIME AC100 slurry with HP tiles, cementitious substrate and subsequent layers. Appearance: White/Grey/Terracotta liquid components Dry film apperance : Joint free membrane Density : 1.3 gm/cc

Tear strength : > 17 N/mm2 (ASTM D1004-76) Elongation at break : 200% for the system (ASTM D638) DFT of cured membrane : 1500 to 1700 microns Total Solids content: 68% + 2% . Water penetration : No leak at 7 bars +ve side (DIN 1048) Application temperature : 5 deg C to 50 deg C Touch dry: 2 hrs at 25 deg C Recoatable : 6-8 hrs at 25 deg C Full cure: 7 days.

SPECIALISED FIVE LAYER SYSTEM OF WATERPROOFING TREATMENT TO THE TERRACE WITH Roofcare-prc 5 Systems or equivalent ( ROOFCARE PRC 5 (Armstrong) / ZORICOAT PFC 5 (PMCC)/ POWER SAC 5 L (EBT)/ WATERSHIELD 5 LWC.

a). Ist Layer Black coloured chemcial treatment : Providng and application of one coat of High bonding, flexible bituminous polyurethane blended bituminous coating with – Roofcare prc 5 systems Confiming to ASTM-G 154 -2000 or equavalent Ist Layer diluting with water at 1 : 1 ratio as a primer coat at a consumption of 200ml per Sqm.

b). IInd Layer : Providing and laying of Fibre Mesh 40 GSM, with 1 Mtr width and 50mm overlap on the primed surface.

c). IIIrd Layer Grey coloured coating : Providing and application of one coat of Acrylic rubberized elastomeric flexible waterproof grey coating with – Roofcare prc 5 systems ASTM-C 836 or equavalent or equavalent diluting with 50% of water at a consumption of 400ml per Sqm.

d). IVth Layer white colured coating : Providing and application of one coat of High solid, cold applied, Fibre reinforced acrylic elastomeric waterproof membrane off white coating –Roofcare prc 5 systems Confiming to ASTM-G 154 -2000 or equavalent coating (add the water upto 200ml ) (Consumption of 350ml per Sqm ).

e). Vth Layer super white reflective coating : Application of one coat of 100% pure acrylic solar reflective pure white coating withRoofcareprc 5 systems Confirming to ASTM -C 297 or equavalent solar refective coating diluting with 20% of water (Consumption of 300ml per Sqm ).

NOTE:- THE ABOVE TREATMENT WILL BE GUARANTEED FOR 5 YEARS

SPECIALISED INJECTION GROUTING WITH CEMENT AND FREE FLOW ADDITIVES: a) Drilling of holes with power drilling machine to the required depth [12mm to 14mm dia holes] b) Fixing of Rubber Nozzles with cement and quick setting, Rapid hardening compound putty - Rapidstrong qs or equivalent. c) Grouting of holes with 140 PSI Grout pump with cement slurry mixing with Specialized Free flow, Non-shrink Grout additive - RAPIDSTRONG GROUT ADMIX (Armstrong ) /POWER n GROUT ADMIX (EBT) / CEBEX 100 (Fosroc )/ ZORIGROUT GP1 (PMCC) / SIKAGROUT ANCHKOR NSQ (Sika) /WATERSHIELD GROUT ADMIXi.e., 250 Grams per bag of 50 Kgs Cement add required water to make slurry form. d) After completion of grouting, Remove the Rubber nozzles

e) Later sealing of the hole with polymer cement putty - ROOFCRETE AR (Armstrong ) / ZORIGROUT CMG (PMCC) / POWER n GUARD ARM (EBT) / WATERSHIELD AR / Fosroc NITOBOND AR + Cement. * FOR STRENTHENING AND SEAL THE POROSITY OF THE CONCRETE TO ARREST THE LEAKAGES, DAMPNESS, LEAKAGES OF CONSTRUCTION JOINTS: (FOR TERRACE /CEILING / RCC RETAINING WALLS BASEDMENT FLOORINGS / WATER TANKS / RESERVOIRS / TOILETS etc.,)

SPECIALISED POLYSULPHIDE/ POLYURETHANE /HIGH BREDACRYLIC/ SEALANT TREATMENT TO THE OLD/EXISTING EXPANSION JOINT IN THE TERRACE, COLUMN, BEAM.

1.Cut and remove the existing expansion joint in the screed for a minimum width of 200mm and a depth of screed (upto the mothers lab) by using diamond dis ccutting machine and dispose the debris as per the department instruction. All elevated kerbwall both sides of the expansion joint along with the top free laying slab, cover etc., as per the site conditions under the scope of the main contractor/ client. 2.Remove the existing filling for a minimum depth of 40mm using sharp knife (approximate size 25x 40 mm) as per the site condition. 3.If the site condition allows to insert backer rod, remove the existing filling for a minimum depth of 70mm from the top (the clear filling of sealant should be 40mm) and insert MixCELL R inside the joint. 4.Clean the surface with air blower upto receive adust free surface and make sure the surface is sound dry or the moisture content is less than 5 %. 5.Apply one coat of Penetrative Primer MixPRIME SB 300 and allow touching dry.

6.Fill the Mix FLEXAC in the joint by using a sealant gun/ notch trowel as per site condition upto the required depth and width and allow to dry for a minimum period of 1 day as per the climatic condition. 7.Apply two coat of penetrative sealer coat site mixed primer Mix PRIME AC100-mix with portable water and OP Cement inthe ratio of 2:1:3 (Two part MixPRIME AC100 : One Part water : 3 Part OP cement by using slow speed mixer machine with paddle for a period of 2 to 3minutes up to receive a homogeneous mix) @ 1.000 Liter per SQM inthe entire screed removed portion (vertical and horizontal faces) of 200mm along with saturated (saturated with Mix PRIME AC100: Water: OP Cement in the ratio of 2:1:1) Mix FELT P50 inbetween the two coats and allow to cure for a period of 6 hours. 8.Do the necessary levelling plastering with cements and mortar 1:2:4 (6mm aggregate) screed along with the addition of Mix BOND SBR Superand PLASTFIBER 3S as per the following for a minimum thickness of removal. a.Mix the Mix BOND SBR Super @ 2Liter/ Bag Cement inthe ratio of 1:4 Mortar (Pre mix the admixture in the portable water for preparing the mortar) b.Add 100Gram PLAST FIBRE3S in the above liquid and stir red well with a slow speed drill with paddle. c.Prepare the cements and screed inthe ratio of 1:2:4 with above prepared liquid for the suitable consistency. d.Necessary curing and drying for a minimum period of 4 days. 9.In wet condition, provide a dummy expansion joint onthe top of the screed for a minimum size of 10 x 10 mm by using sharp trowel 10.Apply one coat of Penetrative Primer MixPRIME SB300 in the entire surface of the dummy joint and allow to touch dry for a period of 30 minutes. Fill the Mix FLEX AC inthe joint by using a sealant gun/ notch trowel as per site condition up to the required depth and width

Procedure for MixGUARD HR5 Waterproofing System – 500 mm width:: 1.Apply one coat of penetrative sealer coat site mixed primer Mix PRIME AC100-mix with portable water and OP Cement inthe ratio of 2:1:3(Two part Mix PRIME AC100: One Part water: 3 Part OP cement by using slow speed mixer machine with paddle for a period of 2to3 minutes upto receive a homogeneous mix) @1.000 Liter per SQM as per the porosity of the prepared mother slab by using roller brush/ hand brush/ Sprayer and allow to dry for a period of 6to8 Hrs after the laying of tensile reinforcement mat. 2.Lay the Mix MAT GFM 70/50 (asper site condition) on the top of Mix PRIME AC100 inthe wet condition. In such away place the Mix MAT GFM 70/50 onthe prepared surface and applied the slurry overal so obtain the same technical property.

3.Apply one coat of penetrative primer Mix PRIME [email protected] Liter per SQM by using roller brush / hand brush / sprayer and allow drying for a period of 6 Hrs. 4.Application of Base Coat Water Proofing System with Mix GUARD HR@ 0.500Kg /SQM by using roller brush/ hand brush/ sprayer and allow to dry for a period of 6 Hrs. 5.Application of Top Coat Water Proofing System with Mix GUARD HRXtra @0.500Kg /SQM by using roller brush/handbrush/sprayer and allow to final curing for a period of 2to3 days with ROOF SEALPS, Mix FLEXAC, ZORISEALPS, POWR n SEALPS, NITOSEALPS200, WATERSEALPS or equivalent compline with BS5254, ASTMC834, ASTMC1253, ASTMD4541, ASTMD1117, ASTM D 5729.

Note: - 1.No dilution or modification recommended except item no7,8 and 1inHR5 System. 2.The all materials should be procure as per the consumption with respect of the work order. 3.The application should be carried out by an approved agency. 4.The contractor should provide 5years material warrantee from the Manufacturer and 5 year warrantee from the applicator or combined 5.The all civil work such as cutting (elevated kerbwall with slab), removing cleaning and screed with cements and and aggregate including all materials and labours should be under the scope of the main contractor/client as per the site condition and our requirement to complete the expansion joint treatment as per the BOQ / Tender document.

Supplying and fixing of scaffolding to structure for various Civil repair works etc., including cost and conveyance of all materials such as Casurino Poles, Bamboos, country wood planks, nails and coir puri to provide working plot form along with ladder up to required level strongly. After completion of work scaffolding should be removed carefully as directed during the execution etc., complete. Note: The measurement for scaffolding shouldl be allowed for one face only.

Providing Unplasticized PVC SWR Rain water downfall pipes for the following dia with ISI:13592 Type -A mark with necessary shoes, bends, collars etc., including making holes in walls, RCC slabs, beams, columns, including fixing with necessary wooden plugs (where it is required pipe clear of wall, wooden blocks of size equal to that of ears of the pipe shall be used), screws, iron clamps of 18 G and making good the same including cost and conveyance of all materials and incidental charges etc., complete as directed during execution.- 110 mm dia PVC pipe with wooden block of size 150mmx50mmx50mm

Supply of following dia metre of PVC SWR pipe fittings ( U.V resistant) as per approved make with BIS standards

- do - 110mm dia Palin Bend 87.5 Degree

- do - 110mm dia 45 Degree Bend

- do - 110mm dia Coupler

Supply of Aluminium sheet 24 Gauge

Supply of Country Nails/Wire Nails