REPAIRS TO HARDSTANDING, PQC HARDSTANDING AND OTHER CONNECTING WORKS TO JETTY AREA AND DISPERSAL AREA AT NAVAL BASE KARWAR

Amount

Racking out of old existing sealant compound and back up rod of the existing construction joints by special tools like cutting blades/machines, widening of joints by 2 mm by using joint cutting blades of appropriate size straight and smooth edges. Joint cleaned thoroughly with application of compressed air. Joint shall be made dry, vacuum cleaned and free of dirt, oil vegetation and other debris . Application of two coats of primer with thin brush by forward and backward movement at an interval of 30 minutes before pouring the sealant Thereafter filled with closed cell medium density, cross linked polyethylene foam backup rod of 12 mm dia for complete length of the joint, over it to be filled with polyurethane joint sealant meeting the requirements mentioned in BS-5212, BS 4254 and EN-141875-2003 with minimum movement accommodation factor (MAF) of+!- 30% complete all as specified and directed.

Racking out of old existing sealant compound, back up rod and filler board of the existing expansion joints by special tools like racker/cutting blades/machines , widening of joints by 2 mm by using joint cutting blades of appropriate size, straight and smooth edges. Joint cleaned thoroughly with application of compressed air. Joint shall be made dry, vacuum cleaned and free of dirt, oil, vegetation and other debris Application of two coats of primer with thin brush by forward and backward movement at an interval of 30 minutes before placing the filler board and pouring the sealant Thereafter filled with pre-moulded 25 mm thick compressible polyethylene closed cell type filler board as specified , over it filled with closed cell medium density, cross linked polyethylene foam backup rod of 30 mm dia for complete length of the joint. Finally filled with polyurethane joint sealant meeting the requirements mentioned in BS-5212, BS-4254 and EN-141875-2003 with minimum movement accommodation factor MAF of+/- 30% complete all as specified and directed.

Demolition of cement concrete of any description and in any position as per direction of Engineer in charge complete all as specified and directed.

Material and labour for formwork to soffits of suspended slabs such as roof slabs, floor slabs, landings and similar work not exceeding 200mm thick(Horizontal or sloping) rough finished surface of concrete complete all as specified.

Supplying and laying 400 micron thick HDPE sheet (Virgin Quality) water proof, wrinkle free without puncture having minimum weight 390 gm/Sqm over tack coat/sand cushion as specified in the design with overlap between adjacent strips and transverse joints as minimum 300mm complete all as specified and directed.

Material and labour for cement concrete work in pavement/hardstanding of flexural strength 40kg/sqcm in field using minimum 400kg of cement per cubic metre laid in alternate panels all as specified and directed.

Material and labour for finishing surface of concrete roads, pavements by brooming all as specified and as directed.

Preparation of cracked top surface of concrete slab on runway with wire brushes and manually if required using diamond but blade mechanicaly driven and cleaning with air compressor to remove all loose dirt, dust, scalling, grease etc complete all as specified and as directed by Engr-in-Charge.

Material and labour for Applying primer NG CHEM 121or equivalent for the cleaned existing surfaces complete all as specified and directed.

Applying Den mort / NG MORT or equivalent trowelling compound on primed surfaces with thickness from 2mm to 5mm including filling of small holes up to 10mm depth and levelling the surfaces to match the existing surfaces level of runway / taxi track etc complete all as specified and as directed by Engr-in-Charge.

Material and labour for preperation of new or previously treated concrete surface to receive painting,painting lines,dashes,arrows,letters etc. exceeding 10cm width with two coat of approved water based road marking paint colour white,Golden yellow, deeep orange, black&gray as per requirement complete all as specified and as directed.The work to be executed by spray or air compressor complete all as specified and directed.

M&L for preperation of new or previously treated concrete surface to receive painting,painting lines,dashes,arrows,letters etc. not exceeding 10cm width with two coat of approved water based road marking paint colour white,Golden yellow, deeep orange, black & gray as per requirement complete all as specified and as directed.The work to be executed by spray or air compressor.

M&L for hardcore of guage not exceeding 63mm deposited, spread and levelled in layers not exceeding 15cm thk, watered and rammed to a true surface complete all as per specified and directed.

M&L for PCC 1:4:8 type D-2 using 40mm graded stone aggregate in foundations, filling and mass concrete complete all as specified and directed

M&L for machine pressed pre-cast concrete interlocking coloured paver block of any size and shape Conforming to IS-15658-2006 of 80mm thickness M-40 grade with grey cement and pigment etc complete all as specified and directed.

M&L for stone dust or sand base filling in floors or pavings, laid in layers n exc. 15 cm thick, spread, levelled, and blinded with earth and rammed including watering etc complete all as specified and directed.

M&L for PCC 1:2:4 type B1 using (20 mm graded aggregate) as in kerbing all around of tile etc complete all as specified and directed.

Demolition of reinforced cement concrete of any description and in any position as per direction of Engineer in charge complete all as specified and directed.

M&L for reinforced cement concrete(design mix) M-30 using 20mm aggregates for slabs supported on walls,beams etc. all as specified and as directed.

S&F mild steel TMT bars(CRS/HCRM/CRM) 10 mm dia and over, cut to length bent to shape required including cranking bending etc TMT bars complete all as specified and directed.

S&F mild steel TMT bars(CRS/HCRM/CRM) 6 to 8 mm dia and over, cut to length bent to shape required including cranking bending etc TMT bars complete all as specified and directed.

Forming Contraction(Dummy) joints 65mm deep x 10mm wide filled with sealing compound of Grade A complete all as specified and directed.

Forming Construction joints 30mm deep x 10mm wide filled with sealing compound of Grade A complete all as specified and directed.

Ms V. S. NAYAK (BID ID -3290568)

H S KRISHNA ELECTRICALS (BID ID -3287189)

K.G.SHANKER (BID ID -3287430)