Development of Deoghar Airport Jharkhand SH Construction of emergency exit road at Runway

Amount

Earth work in excavation by mechanical means (Hydraulic excavator of 0.9 cum bucket capacity) in all kinds of soil including all types of rocks excluding hard rock over areas including cutting and loading in tippers, trimming bottom and side slopes, in accordance with requirements of lines, grades and cross sections, transporting and unloading to the embankment/filling location within all lifts and lead upto 1000m. (Note: The quoted rate of the item shall be all inclusive irrespective of position of ground water table or natural moisture content of soil)

Providing and laying in position cement concrete of specified grade excluding the cost of centering and shuttering - All work up to plinth level : 1:3:6 (1 Cement : 3 coarse sand : 6 graded stone aggregate 40 mm nominal size).

Providing and laying in position cement concrete of specified grade excluding the cost of centering and shuttering - All work up to plinth level : 1:4:8 (1 Cement : 4 coarse sand : 8 graded stone aggregate 40 mm nominal size).

Providing and laying in position cement concrete of specified grade excluding the cost of centering and shuttering - All work up to plinth level : 1:2:4 (1 Cement : 2 coarse sand : 4 graded stone aggregate 20 mm nominal size).

Preparation and consolidation of sub grade with power road roller/Vibratory road roller of 8 to 12 tonne capacity, dressing to camber and consolidating with road roller including making good the undulations etc. and re-rolling the sub grade.

Preparation of granular sub-base by providing close graded material, conforming to specifications mixing in a mechanical mix plant at OMC, carriage of mixed material by mechanical transport to work site, for all leads and lifts, spreading in uniform layers of specified thickness with mechanical means including neatly leveling & dressing on prepared surface and compacting with vibratory power roller to achieve the desired density, complete and as per direction of Engineer-in-charge

Providing, laying, spreading and compacting graded stone aggregate (size range 53 mm to 0.075 mm ) to wet mix macadam (WMM) specification including premixing the material with water at OMC in mechanical mix plant, carriage of mixed material by tipper to site, for all leads & lifts, laying in uniform layers with mechanical paver finisher in sub- base / base course on well prepared surface and compacting with vibratory roller of 8 to 10 tonne capacity to achieve the desired density, complete as per specifications and directions of Engineer-in-Charge.

Construction of dry lean cement concrete sub base over a prepared subgrade with coarse and fine aggregate conforming to IS:383, the size of coarse aggregate not exceeding 25 mm, aggregate cement ratio not to exceed 15:1, aggregate gradation after blending to be as per specifications, cement content not to be less than 150 Kg/cum, optimum moisture content to be determined during trial length construction, concrete strength not to be less than 10 Mpa at 7 days, mixed in a batching plant, transported to site, for all leads & lifts, laid with a mechanical paver, compacting with 8-10 tonne vibratory roller, finishing and curing etc. complete as per direction of Engineer-in-charge.

Providing and laying Pavement Quality Concrete (PQC) produced in a batching and mixing plant having a Characteristic flexural strength i.e. flexural strength of 4.1 MPa at 28 days using Ordinary Portland Cement of 45/53 grade or Portland Pozzolana Cement or Portland Slag cement conforming as per relevant IS codes, to be mixed at site, with 0.5% Super plasticizer by mass of cementitious material, fine aggregate, graded stone aggregates of 40mm nominal size in appropriate proportion as per specification and job mix formula, laid in panels as per drawings/design as approved by the Engineer-In-charge using Slip form Paver or Fixed form paver including anti friction layer, joint filler board, making necessary provision for expansion, dummy and construction joint including filling with Polysulphide sealant of approved make, curing and making profile, complete as per direction of Engineer-in-Charge and specifications, The item for execution shall include all operations making pavement for intended use but not limited to following: (i) Polyethylene sheet (White in color) of thickness 400 micron conforming to IS: 2508 with 6mm thick fine sand layer. (ii) Proving and laying in position for expansion joint, 25mm thick pre-cut Synthetic joint filler board of approved make conforming to IS : 1838(Part 3)-2011, 45mm from top(to be removed at the time of filling of Ploysulphide sealant). (iii) Mechanically cutting dummy joints 3mm wide x 1/3rd thickness of slab which is subsequently widened to 10mm for the top 25mm depth and construction joints10mm wide x 25mm deep as per specification. (iv) Proving and laying in position Ploysulphide sealant of approved make conforming to BSD-5212-1990 or IS::P 11433-1995 in expansion/ construction/ dummy joints including rounding off edges, applying 2 coats of approved primer compatible with the brand of Ploysulphide and preparing the surface and applying masking tape along the edge of joint to prevent accidental spillage of sealant on top surface and to give neat finish to the sealant and removing the masking tape after application of sealant etc. as per the details below: (a) Expansion joint of size 25mm wide and 10mm deep over 30mm dia expanded closed-cell Ployethylene foam back-up/backer rod of minimum density 22 Kg/Cum, as per manufactures's specifications and specified sketch. (b) Construction Joints of size 10mm wide and 10mm deep over 12mm dia expanded closed-cell Polyethylene foam back-up/backer rod of minimum density 22 Kg/Cum, as per manufactures's specifications and specified sketch. (c) Dummy Joints of size 10mm wide and 10mm deep over 12mm dia expanded closed-cell Polyethylene foam back-up/backer rod of minimum density 22 Kg/Cum, as per manufactures’ specifications and specified sketch. (v) Making profile as per DGCA CAR, panel drawing showing dummy, construction, expansion joints location. Note: (i) Areas inaccessible to paving equipment shall be constructed by manual/hand guided method. Areas in which manual/hand guided methods of construction become indispensable shall be got approved by the Engineer-in-Charge in writing in advance. (ii) The quantity of cement, type of cement and super plasticizer for one cum. of finished concrete specified are for tendering purpose only. The contractor shall quote his rates assuming quantity of OPC cement as 360 Kgt/Cum or 400Kg of Portland Pozzolana Cement/Portland Slag cement. in addition, if the actual quantity of cement & super plasticizer required as per laboratory mix design varies from the quantity assumed above, necessary cost adjustment for deviation in the quantity of cement and super plasticizer as per mix design, if any, shall be done as per the rate of cement and super plasticizer in actual supply voucher from manufacturer/authorized dealer at the time of execution. In the case of authorized distributor, the rate may be authenticated by the manufacturer. The rate of cement and super plasticizer exclusive of GST shall only be considered for payment.

Providing and laying Non pressure NP-4 class (Heavy duty) R.C.C pipes including collars/spigot joined with stiff mixture of cement mortar in the proportion of 1:2( e cement : 2 fine sand) including testing of joints etc. complete. a. 900mm dia RCC pipes.

Carrying out plate Load test to determine Modulus of Subgrade reaction (K-value) at subgrade /subbase/base layer or at locations decided by the Engineer-in-Charge as per IS Code 9214-1979 and submission of test result as per direction of Engineer-in-charge. The test should be carried out after achieving approved proctor density and by the specialized agency/firm Ss approved by the Engineer-in-charge.

JCC Infratech Pvt Ltd

M/s P D AGARWAL

NSC Projects Pvt. Ltd.

Vishal Builders