Special Repairs to Parambikulam main canal from LS 108.890Km to 109.000Km

Dismantling plain cement concrete clearing away and carefully stacking the materials in specified area useful for reuse for any thickness of structures specified including all leads and lifts etc,. Complete complying with technical specification and as directed by the Departmental officers.

Dismantling stone masonry walls in cement mortar under 3m high clearing away and carefully stacking the materials in specified area useful for reuse for any thickness of structures specified including all leads and lifts etc,. complete complying with technical specification and as directed by the Departmental officers.

Random Rubble masonry in cement mortar 1:4 (One Cement and Four Sand) Using Old stones available at site for lining and including simultaneous pointing with the same mortar in the exposed surface and all incidental charges. Such as finishing curing etc,. complete complying with technical specification and as directed by the Departmental officers.

Random Rubble masonry in cement mortar 1:4 (One Cement and Four CS Sand ) Using New stones obtained from approved sources including bond stones wherever found necessary for lining / cross masonry structures and including simultaneous pointing with the same mortar in the exposed surface and all incidental charges.Such as finishing curing etc., complete complying with technical specification and as directed by the Departmental officers.

Earth work excavation in hard red earth shales, murrams, gravel, stoney earth and earth mixed with small size boulders and hard gravelly soil and conveying the same with a lead of 5KMCT through tippers including loading unloading, stacking for pre measurements, for filling in the eroded portions of canal banks in layers not exceeding 15cm thickness, breaking clods, compacting thoroughly and neat sectioning at places shown by the Departmental officers etc,. complete, complying with technical specification and as directed by the Departmental officers.

Gravel Backing for sides of erroded canal portion to prepare a uniform sub grade for lining including cost of gravel, conveyence with a lead of 5KMCT including loading unloading, stacking for pre measurements watering and consolidation etc,. Complete complying with technical specification and as directed by the Departmental officers.

Plain Cement concrete 1:3:6 (One part cement, three parts M sand and six parts aggregate) using 20mm Hard Broken Stone Jelly in layers not exceeding 15Cm thick including laying & Compacting finishing curing etc complete complying with technical specification and as directed by the Departmental officers.

Plastering with cement mortar 1:4 (One cement and four P sand) 20mm thick over the R.R.Massonry including finishing and curing etc, complete complying with technical specification and as directed by the Departmental officers.

Refixing the existing cement concrete slabs of size 60x45x5cm making the surface of the sides of the canal suitable to receive the cement mortar bedding of 15mm thick in cement mortar 1:5 (One cement and five P sand) directly on the subgrade duly dressed and compacted full one day for water Curing of this bed layer and then laying of P.C.C.slabes with 6mm thick, cement mortar 1:3 (One cement and three P sand) with backing, brushing, wetting and fixing the precast cement concrete slabs in position inside slobes of the canal with templates by laying the slabs in position with cement mortar 1:2 (One cement and two P sand) to full thickness of slab simultaneous flush pointing with the same mortar finishing curing etc,. complete as per technical specificaion and as directed by the departmental officers.