REPAIRS TO RUNWAY JOINTS FILLING AT PTT AND DISPERSAL AREA AT AF STATION BAREILLY

Amount

Supply only 2 component Polyurethane sealing compound conforming to BS-5212 - 1990 in 4 Kg containers. [Make: Seal 'N' Flex 2K Mfd by M/s Bostik India Pvt Ltd/ ShaliSeal PU PG 2K of M/s STP Ltd or equivalent product of M/s Choksey Chemicals Pvt.]

Supply only Primer suitable for Polyurethane sealant for application on porous substrates in 4 Litre containers. [Make: N49 Primer Mfd by M/s Bostik India Pvt Ltd/ ShaliPrime S of M/s STP Ltd or equivalent product of M/s Choksey Chemicals Pvt. Ltd.]

Supply only solvent free 3 component Epoxy Resin Mortar screed suitable for repairs to concrete pavements in 15/ 30 Kg Bags. [Make: Bostik ERM Mfd by M/s Bostik India Pvt Ltd/ ShaliFix EM of M/s STP Ltd or equivalent product of M/s Choksey Chemicals Pvt. Ltd.]

Supply only Epoxy resin primer suitable for application on concrete surfaces to receive epoxy resin mortar. [Make: Bostik E1 Mfd by M/s Bostik India Pvt Ltd/ ShaliPrime 2E of M/s STP Ltd or equivalent product of M/s Choksey Chemicals Pvt. Ltd.]

Supply only jet fuel resistant sealing compound Grade 'B' conforming to IS-1834 in 26 kg drums as directed. [Make: ShaliJet Mfd by M/s STP Ltd. or equivalent product of M/s Choksey Chemicals Pvt. Ltd./ M/s Bostik India Pvt Ltd ]

Supply only bituminous primer suitable for prior to application of sealing compound Grade 'B' in 4 Litre containers. [Make: ShaliPrime SSC Mfd by M/s STP Ltd. or equivalent product of M/s Choksey Chemicals Pvt. Ltd./ M/s Bostik India Pvt Ltd ]

Cutting the edges of old joints of following width by racking out old sealing compound from existing joints of tarmac to depth as required (subject to minimum depth of 35 mm) by special tools like cutting blades / grinding machines (use of hammers is prohibited to avoid damage to the edges) and removing old filled sealing compound from the joints by means of compressed air using hand blowers and disposal of retrieved material from old joints to a distance exc. 1.00 km but n.exc 2 km where directed and filling the joints by mechanical means as per following process: - (i) Provision of Backer rod of suitable dia to be inserted in the joint tightly as specified. (ii) Provision of adequate masking tape on either sides of joint to avoid spillage on concrete surface before applying joint sealant and removing the same after sealing of joints. (iii) Filling PU sealing compound properly for a depth of not less than 10mm for joints up to 32mm wide and 15mm for joints above 32mm wide after application of primer as directed by Engineer-in-Charge. (The finished level of sealed joints shall be on an average 3mm below the top surface of slabs) NOTE: - (i) PU Sealing compound & Primer shall be issued by the MES under Schedule 'B' free for filling/ application (ii) Quoted rate shall include for all other material components (a) Width of joint exc. 5 mm but not exc. 12 mm.

(b) Width of joint exc. 12 mm but not exc. 18 mm.

(c) Width of joint exc. 18 mm but not exc. 25 mm.

(d) Width of joint exc. 25 mm but not exc. 32 mm.

(e) Width of joint exc. 32 mm but not exc. 45 mm.

(f) Width of joint exc. 45 mm but not exc. 55 mm.

M&L for repair to concrete slab or pavement of existing damaged edges/ spoiled edges to triangular/ rectangular cross section, removing all broken and loose material to a distance exc. 50 metres but not exc. 100 metres and cleaning the surface with compressed air to remove dust, dirt, loose aggregates / foreign material, washing the surface with acid solution and repairing surface/ edge with 3 component epoxy resin mortar after application of epoxy resin primer with and including necessary form work complete all as specified and directed by Engineer-in-Charge. NOTE: - Epoxy Resin Mortar & Epoxy resin primer shall be issued by the MES under Schedule 'B' free for filling/ application (ii) Quoted rate shall include for all other material components

Cutting the edges of any type of joints 30mm deep by racking out old sealing compound from existing joints by means of compressed air and filling the joints with sealing compound grade 'B' after application of primer for the following size joints complete all as specified and directed: - NOTE: - Sealing compound Grade 'B' & Primer shall be issued by the MES under Schedule 'B' free for filling/ application (a) Width of joint exc. 8 mm but not exc. 18 mm.

(b) Width of joint exc. 18 mm but not exc. 25 mm.

(c) Width of joint exc. 25 mm but not exc. 32 mm.

(d) Width of joint exc. 32 mm but not exc. 40 mm.

M&L for filling of pot holes of following sizes in concrete surface and filling as per following process: - (i) Cleaning of surface by means of wire brush and removing the dust by means of compressed air. (ii) Sealing compound shall be filled in pot holes after application of primer. NOTE: - Sealing compound shall be Bostik "Seal N flex -1', single component Bostik Polyurethane sealant conforming to BS-5212 with minimum movement accommodation factor of + 30% when tested as per ASTM C-719 or equivalent product of M/s Choksey Chemicals Pvt. Ltd. or M/s STP Ltd. as approved. The sealant shall have shore A hardness ≥ 30 and as per manufacturer's instructions. (a) Dia and depth of pot hole not exc. 1 cm.

(b) Dia and depth of pot hole exc. 1 cm but n exc 2 cm

Ikrar khan & co.

Zaigham Enterprises

NOORI ENTERPRISES

M/s Agarwal Builders

M/s M Aali construction co