PROVIDING WATER PROOFING TREATMENT FOR VARIOUS BUILDINGS AT ARCI, HYDERABAD

water proofing treatment for various buildings at ARCI, Balapur, Hyderabad

Polymer modified plastering: Supply and apply of 20mm thick Polymer Modified Cement Sand Mortar for Plastering, Chamfering and Angle Fillet for the up stands mixed with admixtures compounds by FAB CHEMICALS/FOSROC / BASF / SIKA all as directed by Department Engineer with the following specification and must be adhere with ASTM C 1116, BS 5270, ASTM D 4541, BS 6319, ASTM C 932 as per the following method 1. Remove the all-damaged portion in roof / parapet debris and disposed as per the instruction of engineering department. 2. Clean the surface with water jet up to receive sound substrate (Without any loosed particles, fungal growth , vegetation etc) 3. Apply one coat of bonding slurry @ 1.000 Litre / SQM with the modification of MixBOND AC along with water and cement in the ratio of 2 : 1 : 3 by volume (MixBOND AC (0.350 litre/SQM) : WATER : CEMENT) in the required area, 30 minutes before commencing the modified cement sand motor. 4. Do the necessary plastering /chamfering for an average thick of 20 mm with polymer modified cement sand motors 1:4, 20mm thick as per the following mortar preparation a. Mix the MixBOND SBR Super @ 2 Liter / Bag Cement in the ratio of 1:4 Mortar ( Pre mix the admixture in the portable water for preparing the mortar) b. Add 100 Gram PLASTFIBRE 3s in the above liquid and stirred well with a slow speed mixer with paddle. c. Prepare the cement sand mortar in the ratio of 1:3 with above prepared liquid for the suitable consistency. 5. Plaster the necessary damaged area, 6. Do the necessary curing and drying for a period of 4 to 5 days. Note: - 1) The all materials should be procure as per the manufacturer’s recommended consumption statement with respect to the work order. 2) The application should be carried out by an approved agency. 3 ) The contractor should provide 5 years material warrantee from the Manufacturer and 5 year warrantee from the applicator or combined

Existing crack filling: Supply and apply of plaster roof substrate line joint using MixFLEX AC along with surface stabilizing primer MixPRIME® SB 300. 1. Clean the joint with air blower up to receive a dust free surface 2. Apply one coat of MixPRIME® SB300 and allow to touch dry. 3. Fill the joint with MixFLEX® AC and allow drying for a period of 24 hours.

Providing and laying five layers waterproofing cum heat reflective treatment: (high build microfiber reinforced Elastomeric cold applied water proofing cum heat reflective liquid membrane system) for a total system thickness of 1500 to 1600 Micron on the existing top leveled roof slab complete as per manufacturer’s specification and as directed by the Department in Charge. Arresting roof leakage by providing five layer treatment with (MixGUARD HR-5 layer system of FAB Chemicals or equivalent five layer System of Fosroc / BASF /SIKA five layer system of High build elastomeric water proofing cum heat reflective liquid membrane system over the old roof slab/ terrace, all as per manufacturer specification and as directed by Department in Charge. The rate quoted shall include surface preparation unless a separate item is available in the schedule. General material specification / technical parameters that must be complied for the system - Density: 1.30Gm/cc, Solids content: 70% ± 2% by weight, Elongation at break ASTM D 638: 200% (for the system), Adhesion to substrate ASTM D 4541: >1.50 N/mm2, Water penetration DIN 1048: no leak at 7 bars, Tear resistance ASTM D 1004-76: 17 N/mm2, Tensile strength ASTM D 412-87:6.00 N/mm2 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 particle/grease/oil/dust etc. Surface cracks must be filled with MixBUILD GP and wide cracks must be cut and repaired with MixBUILD SR polymer modified repair mortar. a) First Layer - Supply and Apply penetrative cum bonding primer as base primer cum sealer coat using Mix PRIME AC100 compound or equivalent which is produced by mixing MIxPRIME AC100 with water and cement at the ratio 2:1:3 (MixPRIME AC100 : water : cement) by volume with a slow speed mixer machine. The compound shall be applied with sufficient thickness to cover the holes/pores/cracks @ 1.000 Liter / SQM and the raw primer must be adhere with ASTM 4541 and the Solid content 49% +2%. b ) Second Layer – Supply and apply of MixMAT GFM 50/70 synthetic fiber reinforced mesh (2 x 2 mm welded with alkaline resistant coated /non-woven 40 Gsm verging fiber mesh) or equivalent shall be spread on top of primer (MixPRIME AC100 -slurry) in wet condition. (In such way place the MixMAT GFM70/50 on the prepared surface and apply the slurry over also to obtain the same technical property).Allow to dry for a period of 6 to 8 hours. A minimum overlap of 100 mm to be provided at the joints. The MixMAT GFM70/50 shall confirm to manufacturer’s data sheet specifications. c ) Third Layer - Supply and apply of bonding cum water tight acrylic high viscous white primer MixPRIME® AC or equivalent over the mesh @ 0.250 Kg /SQM (dilution or modification not recommended).and allow to dry for a period of 6 hours. Adhere with Density: 1.10 Gm/cc, Solids content: 65 % ± 2% by weight, Elongation at break ASTM D 638: >300%, Adhesion to substrate ASTM D 4541: >1.50 N/mm2, Tensile strength ASTM D 638: >1.50 N/mm2, Reduction in chloride ion ingress: 94%@28 days d ) Fourth Layer – Supply and apply of high elastomeric acrylic waterproofing cum weather proof high viscous white liquid membrane coating MixGUARD® HR or equivalent @ 0.500 Kg / SQM (with undiluted condition) must be adhere with Density: 1.35gm/cc , Solids content: 70% ± 2% by weight, Elongation at break ASTM D 638: 400%, Tensile strength ASTM D 412: 1.80 N/mm2, Adhesion to substrate ASTM D 4541: >1.30 N/mm2, Water penetration DIN 1048: no leak at 7 bars (+ve side), Water vapor transmission ASTM E96: 19 Gm/M2/day, Crack bridging ASTM C836: No cracks up to 2 mm thick. e ) Fifth Layer - Supply and apply of fiber reinforced flexible high bride pure acrylic modified waterproofing cum heat reflective high viscous white liquid membrane MixGUARD HR Xtra or equivalent @ 0.500 Kg / SQM (undiluted condition) ) as top coat and must be adhere with Density: 1.35Gm/cc Solids content: 70% ± 2% by weight, Elongation at break ASTM D 638: 150% , Adhesion to substrate ASTM D 4541: >1.30 N/mm2, Water penetration DIN 1048: no leak at 7 bars, Tear resistance ASTM D 1004-76: 10 N/mm2 , Tensile strength ATM D 412-87: 3.00 N/mm2, Solar reflectance – ASTM G173 – 90 %, Water vapor transmission ASTM E 96 – 19 Gm / M2 / day. Note: - 1) No dilution or modification allowed for item no b,c,d,e. 2) All coatings shall be applied at right angle to previous coat. 3) All materials should be procured as per the manufacturer’s recommended consumption statement with respect to the order. 4) The applicator shall be one of those approved by manufacturer. 5) The contractor should provide 5 years material warrantee from the Manufacturer and 5 year warrantee from the applicator or combined 6) Manufacturer’s invoice for material procured for the work

DAMP PROOF COATING: Damp proof coating system of Mix COAT AC400 of Fab chemicals or equivalent system of FOSROC/BASF/SIKA specialized high solid cold applied acrylic elastomeric water proofing cum anti-carbonation for wall along with surface stabilizing primer for internal / external walls 1. Remove the existing painting system with buffing method as per the site condition. 2. Develop the cracks with diamond disc cutting machine for a minimum width of 4 mm and a depth of equal to the crack or the thickness of the existing plastering and remove the damaged / de bonded plastering for a suitable size as per the site condition with mechanical method (avoid chipping and hammering). 3. Clean the surface with water jet up to receive sound substrate and allow to drying for a minimum period of 2 to 3 days. 4. Do the necessary plastering / leveling with polymer modified cement sand mortar. 5. Apply one coat of MixPRIME SB 300 without any modification or dilution @ 0.400 Liter / SQM and allow to try for a period 4 hours in the entire area including the inside of the developed cracks. 6. Fill the developed cracks with MixFLEX AC by using a notch trowel and allow to dry for a period of 24 hours. 7. Apply second coat of MixPRIME SB 300 modified with water and white cement in the ratio of 2 : 1: 2 ( SB300 : Water : White Cement) @ 0.500 Liter / SQM 8. Apply necessary Paint as per the department instruction. Note: - 1) No dilution or modification recommended Item No.5 & 6. 2) The all materials should be procured as per the manufacturer recommended consumption statement with respect to the work order. 3) The application should be carried out by an approved applicator of manufacturer. 4) Manufacturer’s invoice for material procured for the work 5)The contractor should provide 5 years material warrantee from the Manufacturer and 5 years warrantee from the applicator or combined

Roof tile joint treatment: Providing and filling Cementitious water resistant tile joint grout FAB Chemicals/ FOSROC /BASF/ SIKA or Equivalent all as directed by Department Engineer with the following specification. Must be adhere with BS 5980 as per the following method 1. Clean the surface with water jet up to receive a sound substrate and allow to drying for a period of 3 to 4 days as per the climatic conditions. 2. HP Tile/Tile joint filling with cementitious joint filler MixGROUT MG – Grey colour and do the necessary curing and drying for a period of 2 to 3 days.

Removal of existing bitumen waterproofing membrane: 1. Remove the existing Bitumen waterproofing / system without disturbing the mother slab finishes by using light mechanical method up to receive sound substrate ( not necessary to remove the base bitumen primer) in the slab area and the elevated expansion joint structure. 2. Dispose of the debris as instruction of engineering in charge.

Primer for bitumen surface: Supply and apply of bitumen bonding primer MixCOAT AP600 from FAB CHEMICALS or equivalent, all as directed by Department Engineer-in-charge with the following specification and must be adhere with the following technical parameters for the system – Density: 1.02Gm/cc, Solid content: 54% ± 2% by weight, Elongation at break ASTM D 638: 200% (for the system), Adhesion to substrate ASTM D 4541: >1.50 N/mm2, Tensile strength ASTM D 412-87: 3.62 N/mm2 1. Apply one coat of bitumen bonding primer MixCOAT AP 600 - modified with portable water and OP cement in the ratio of 2:2:2 (MixCOAT AP 600 (0.350 litre/SQM) : water: cement)- by using slow speed mixer machine with paddle for a period of 2 to 3 minutes up to receive a homogeneous mix) @ 1.000 Liter / SQM on the top of the existing bitumen waterproofing removed surface by using roller brush / hand brush / Sprayer and allow to drying for a period of 6 to 8 Hrs.

Precast Slab( Vallean Rig slab)-Expansion joint treatment : Supply and apply of MixEXPANSEAL AC precast joint treatment system with hybrid pure acrylic along with bonding primer and protection system from FAB CHEMICALS for a size of 40 x 25 mm (or as per the site condition) in the existing precast slab (Vallean Rig slab) joints in the vertical faces of the building with necessary removal of existing fillings, insuring priming sealant filling and providing an additional protection of waterproofing with high tensile reinforcement mesh for a width of 200 mm in the all joints ( horizontal and vertical), Appearance – White smooth viscous paste , Specific gravity ASTM C 834 – 1.6 Gm/CC, Solid content – 90 %, Shore hardness – Full cure material – 50, Movement accommodation factor – ASTM-C 719 – 20%, Elongation at break ASTM D 412 – 100%, Tensile Strength ASTM D 412 – 150 psi, Water resistant – Excellent , Chemical resistance – Good, UVR – Good. 1. Remove the mortar filling / sealant / filler board from the existing horizontal and vertical joints in the roof with mechanical method without disturbing the edges / line/ length and the mother structure and dispose the debris as per the instruction of department. (Not recommended any kind of cementitious repairing in the edges or side of the joints) 2. Clean the surface with air blower up to receive a dust free surface and make sure the surface is sound dry or the moisture content is less than 5 %. 3. Apply one coat of Penetrative Primer MixPRIME® SB 300 (as per the site condition when the joint has opened) in the vertical surface of the joint by using hand brush and allow touching dry. Appearance – White Viscous liquid, Specific gravity – 1.02, Solid content – 48 + 2 %, Adhesion to concrete 1.5 N/MM2, Elongation PH Value – 7 to 10.50 4. Fill the MixFLEX AC in the joint by using a sealant gun / notch trowel as per the site condition up to the required depth and width.( 40 x 25 mm or as per the site conditions), Standard conformation – ASTM C 834, Appearance – White smooth viscous paste , Specific gravity – 1.6 Gm/CC, Solid content – 90 %, Shore a hardness – Full cure material – 50, Movement accommodation factor – ASTM-C 719 – 20%, Elongation at break ASTM D 412 – 100%, Tensile Strength ASTM D 412 – 150 psi, Water resistant – Excellent , Chemical resistance – Good, UVR – Good. 5. Apply one coat of penetrative sealer coat site mixed slurry for a width of 200 mm - MixPRIME AC100 - mix with portable water and OP Cement in the ratio of 2:1:3 (Two part MixPRIME® AC100 : One Part water : 3 Part OP cement) by using slow speed mixer machine for a period of 2 to 3 minutes up to receive a homogeneous slurry) @ 1.000 Liter per SQM Standard conformation - ASTM D7733-12 and the Solid content 49% +2% 6. Laying of saturated high tensile reinforcement mesh MixFELT P50 for a width of 200 ( saturated with MixPRIME AC100 with portable water and OP Cement in the ratio of 2:1:1. Note: - 1 ) No dilution or modification recommended except item no 3&4. 2 ) The all materials should be procure as per the manufacturer recommended consumption statement with respect of the work order. 3 ) The application should be carried out by an approved agency as approved by manufacturer.. 4 ) The contractor should provide 5 years material warrantee from the Manufacturer and 5 years warrantee from the applicator or combined.

Minor civil works: Minor civil works like plastering, making good of minor cracks/damaged concreting, closing of unwanted openings etc .Including scaffolding and all T&P as part of site preparation works required carrying out the leakage rectification of roofs/walls.

Pre cast slab (V- slabs)joint treatment: Supply and apply of precast slab joint treatment using MixFLEX AC along with surface stabilizing primer MixPRIME SB 300. 1. Remove the existing filling from the slab joint with sharp knife for a minimum depth of 15 mm and a width of 10 mm 2. Dispose the debris as per the department instruction. 3. Clean the joint with air blower up to receive a dust free surface 4. Apply one coat of MixPRIME SB300 and allow to touch dry. 5. Fill the joint with MixFLEX AC and allow drying for a period of 24 hours.