Mumbai University Tender

Removing the existing cement plaster of any thickness without causing dust nuisance and stacking the debris upto a distance of 50 metres or spreading in the compound and cleaning the site etc. complete. Note : Following items to be executed after prior approval of Superintending Engineer.

Removing loose rust from the reinforcement bars by wire brushing, light hammering etc. and applying sulphate and chloride free inorganic single component rust remover Rusticide as approved by Engineer in charge conforming to IS 9077. The rusted surface shall become blackish non rusted colour. After 24 hours of application of rust remover, loose particles shall be removed by brush. Apply one more coat of Rusticide. Apply bonding coat slurry of high performance acrylic polymer - Methyl 2- methylpropenoate copolymer with another innovate as approved by Engineer in charge on entire surface. Mix 1 Kg of acrylic polymer with 0.5 Kg of cement. Finish it with ready to use repair polymer modified mortar based on special cements, formaldehyde based polymer with thixotropy modifying agents as approved by Engineer in charge (The Polymer Modified Mortar (PMM) should attain min. compressive strength of 20 N/mm2 in 1 day and 30 N/mm2 in 7 days) by adding 13 - 16% water by weight of polymer modified mortar for treatment to the damaged RCC members. Add 1 Kg of Migrating Corrosion Inhibiting Admixture as approved by Engineer in charge per 25 Kg bag of polymer modified mortar. After mixing polymer modified mortar, it can be trowel applied or sprayed. When applying by hand, polymer modified mortar must be forced tightly into the substrate to ensure complete contact with the substrate. ( If scaffolding is required, same shall be provided and will be paid under relevant item ) (15-30 mm thickness at a time ).

Making up of distressed/loose/cracked/porous carbonate loose part of concrete with fiberous micro concrete having dual shrinkage compensastion master Emaco S 346 BASF/FOSROC krishna conchem or equivalent and repairing the damaged surfaced of concrete, fixing the form work/shuttering across the profile of damages structural element, micro concrete mix micro concretemix 5 L to 7 L of water in the form work. The work should be carried out with all the safety measures like helmet, safety belt and adequate labour insurance under the supervisio of qualified supervisor etc..complete( excluding all tax)