Sri Venkateswara University Tender

SPECIALISED FIVE LAYER SYSTEM OF WATERPROOFING TREATMENT TOTHE TERRACE WITH MIXGUARD HR5 System. Providing and laying five layers waterproofing cum heat reflective treatment (MIXGUARD HR5 or equivalent) over the old / new roof slab/terrace, all as directedby Department Engineer-in-charge with the followingspecification and should be complainwith the following technical parameters for the system - Density: 1.3 Gm/cc, Solids content: 68% ± 2% byweight, Elongation at break ASTM D 638: 200% (for the system), Adhesion to substrate ASTM D 4541: 1.5 N/mm2, Water penetration DIN 1048: no leak at 7 bars, Tear resistance ASTM D 1004-76:17N/mm2, Tensile strength ASTM D 412- 87:6.0N/mm2 a ) First Layer - Supply and Apply penetrative cum bonding primer as base primer cum sealer coat using MIXPRIMEAC100 or equivalent modified with waterand cement at the ratio 2:1:3 (MIXPRIME AC 100 : water : cement) by volume with a slow speed mixer machine. This compound shall be applied with sufficient thickness to cover the holes/pores/cracks @ 1.000 Liter /SQM (0.350 Lt of MIXPRIME AC100/SQM) and the raw primer should be complain with ASTM 4541 and the Solid content 49% +2% b ) Second Layer – Supply and apply of 2 x2 mm welded with alkaline resistant coated / non-woven 40 Gsm verging fiber mesh MIXMAT GFM 50 or equivalent for a minimum over lap of 100 mm embedded in the primer coat c ) Third Layer - Supply and apply ofbonding cum water tight acrylic high viscous white primer MIXPRIME AC or equivalent @ 0.250 Kg / SQM (dilutionor modification not recommended)Should be complain withDensity:1.1gm/cc, Solids content: 50 % ± 2% by weight, Elongationat break ASTM D638: 300%, Adhesion to substrate

ASTM D 4541: 1 N/mm2, Tensile strength ASTM D 638: 1.5 N/mm2, Reduction in chloride ion ingress: 94%@28 days d ) Fourth Layer – Supply and apply of high elastomeric acrylic waterproofingcum weather proof high viscous white liquid membrane MIXGUARD HR or equivalent @ 0.500 Kg / SQM (dilution or modificationnot recommended) should be complain with Density: 1.30 gm/cc , Solids content: 68% ± 2% by weight, Elongation at break ASTM D 638: 400%, Tensile strength ASTM D 412: 1.8N/mm2, Adhesion to substrate ASTM D 4541: 1 N/mm2, Water penetration DIN1048: no leak at 7 bars (+ve side), Water vapor transmission ASTM E96: 19g/m2/day, Crack bridging ASTM C836: No cracks up to 2mm 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 HRXtra or equivalent @ 0.500 Kg / SQM (dilution or modification not recommended)Density: 1.3 gm/cc Solids content: 68% ± 2% by weight, Elongation at break ASTM D 638: 200% , Adhesion to substrate ASTM D 4541: 1.3 N/mm2, Water penetration DIN 1048: noleak at 7 bars, Tear resistance ASTM D 1004-76: 15N/mm2 , Tensile strength ATM D 412-87: 3.0N/mm2, Solar reflectance –ASTM G173 – 92 %,Water vapor transmission ASTM E 96 –19 Kg / M2/ day.Note: - 1 ) No dilution or modificationrecommended for item No.b,c,dand e . 2 ) All materials should be procured as perthe consumption with respect of the work order. 3 ) The application should be carried out byan approved agency. 4) The contractor should provide 5 years material warrantee from the Manufacturerand 5 year warrantee from the applicator or combined

Supply annd fixing of 110mm dia PVC rain water down take pipes of approved brand including bends, shoes fixed in position with clamps including cost and conveyance of all materials and operational charges, incidental charges and labour charges etc, complete for finished item of work and as directed during execution in all floors