PROVISION OF HARDSTANDING AND SPECIAL REPAIRS TO RUDRA ROAD UNDER GE STM CHENNAI

Amount

BOQ UPLOADED ON 14 NOV 2022

Repairs to potholes any depth not exceeding 1 sqm each including sweeping free from dust and mud, or water, scoring sunken surfaces in roads, paths etc., cutting around edges to atleast 25mm in depth, making good by applying tack coat of paving bitumen of Grade VG-30 at 5 kg per 10 sq m, putting in premixed bituminous macadam, well rammed and sealed with binder of paving bitumen of Grade VG-30, 9.8 kg per 10 sq m, blinded with 0.09 cu m of stone chippings, 6.3 mm size and again well rammed (including supply of premixed macadam with 4% binder content, binder and chippings), depth of potholes exceeding 30mm complete all as specified and as directed.

Preparing black top surfaces by brushing with wire brushes for removing caked mud, loose materials etc., sweeping with mechanical blower or brooms to remove all loose dirt, materials etc., complete all as specified and as directed.

Applying evenly using pressure sprayer a priming / tack coat with bituminous primer of paving bitumen of Grade VG-30 at 5 kg / 10 Sqm over bituminous surfaces complete all as specified and as directed.

Bituminous premix semi-dense asphaltic concrete (SDAC), 40mm consolidated thickness with 5.5% minimum binder content by weight of total mix, (paving bitumen VG-30) and filler of 2 % cement, rolled and compacted to required camber and gradient complete using mechanical paver and rolled to a uniform, smooth surface using Tandem vibratory roller complete all as specified and as directed. Note:- (a) Contractor shall quote his rate by considering 5.5% bitumen content. If it is less than 5.5% by weight of total mix, the amount shall be recovered for the less weight of binder only at the rate of Rs 42/- per Kg if technically acceptable. No other claim whatsoever on account of this will be allowed. (b) No price adjustment shall be applicable if excess quantity of binder content is used / approved in the execution of work under this item. (c) Cement shall be used as filler at a minimum of 2% by weight of total mix. In the event of variation in the mix design in the percentage of filler content on plus side, nothing extra shall be paid. (d) The coarse aggregate for SDAC shall be granite stone.

Preparing road surface including cleaning the road surface of all dirt, seals, oil, grease and foreign material etc and applying 2.5mm thick road marking strips (Retro reflective) of specified shade/colour using hot thermoplastic material conforming to IS-164(1981) by fully automatic thermoplastic paint applicator machine fitted with profile shoe, glass beads dispenser including glass beads, propane tank heater and profile shoe heater, driven by experienced operator in accordance with manufacturer’s instructions all as per BS EN 1871, BS EN 1423 and BS EN 1424 complete as specified and directed.

Moorum / red bajri, as in berms, spread, rolled and consolidated to gradienr and camber required of spread thickness 75mm using hand roller 0.20 tonne to 0.50 tonne capacity as in berms complete all as specified and as directed.

Demolition of cement concrete (un-reinforced) in ground floors and pavings not exceeding 150mm thickness (below or above ground level) and removal of unserviceable debris to outside of MD land complete all as specified and as directed.

Earthwork in excavation by mechanical means (hydraulic excavator), lift upto 1.5m, including getting out the excavated soil and disposal of surplus excavated soil as directed within a lead of 50m in any type of soil complete all as specified and as directed.

Rolling and consolidating formation surfaces in cutting to required level, gradient and camber by using power roller exceeding 8 tonne and not exceeding 12 tonne capacity complete all as specified and as directed.

Soling ( or sub base) with broken boulders or quarried stone, interstices filled, surface formed and rolled and consolidated to required gradient and camber of spread thickness 150mm complete all as specified and as directed.

Water bound macadam (WBM) 75 mm thick (compacted thickness) in single layer, with coarse granite aggregates of grading 2 (63 to 40 mm size), spread, rolled and consolidated to required gradient and camber etc., using power roller exceeding 8 tonne and not exceeding 12 tonne capacity complete all as specified and as directed.

Cement concrete work in pavement/ hard-standing of flexural strength 40 kg/per square centimetre (LCL) in field using 400 kg of cement per cubic metre, thickness of concrete 25 cm or less surface finished by brooming complete all as specified and as directed. Note:- (a) Joint filling with sealing compound shall be measured and paid separately. (b) Deduction shall be made in computing concrete quantity for expansion joints. (c) No price adjustment shall be applicable if excess quantity of cement than the minimum is used / approved based on mix design in the execution of work under this item. (d) Cost of admixtures, fibres to maintain as required by design mix is deemed to be included in the rate quoted. (e) Maximum cement content shall be 425 kg / cum and design mix shall be based on the same.

PVC (SWR) soil, waste and vent pipes single socketed, in any length with rubber ring joints, laid in trenches or in floors of bore 110mm complete all as specified and as directed.

PVC (SWR) soil, waste and vent pipes single socketed, in any length with rubber ring joints, fixed to walls of bore 110mm complete all as specified and as directed.

Rendering 15mm thick in CM(1:6) on fair faces of brickwork or concrete surfaces finished fair and even complete all as specified and as directed.

Preparing newly plastered surfaces of wall and applying three coats of white wash including in narrow widths, bands, cornices, pilasters etc., complete all as specified and as directed.

Forming 12mm thick expansion joints filled with pre-formed bituminous filler and top 30mm primed and sealed with sealing compound, Grade ‘A’ for thickness of concrete slab 150mm complete all as specified and as directed.

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

Pre-cast cement concrete block masonry with grade 'C' solid blocks not exceeding 10cm in width with plain or interlocking joints as directed, having minimum compressive strength of 50 Kg/Sqcm as per IS 2185 (Part-I) 2005 and set in CM 1:4 complete all as specified and as directed.

Vijay Builders

Santhosh Infrastructure

V K CONTRACTORS

M/s.Sai Agency

Sri Lakshmi and Company