REPAIR/ MAINT OF CERTAIN INTERNAL ROAD OF ZONE-III AND IV IN AOR OF AGE B/R-I UNDER GE PANAGARH

M&L repairs to pot holes any depth, not exceeding 1 sqm each including sweeping free from dust, mud or water scouring sunken surfaces in roads, paths etc. cutting around edges to atleast 25 mm in depth making good by applying tack coat @ 5 Kg per 10 sqm using VG-10 Bitumin, putting in premixed bituminous macadam, well rammed and sealed with binder of bitumen grade (VG-30) @ 9.8 Kg per 10 Sqm, blended with 0.09 cum of stone chippings, 6.3 mm size and again well rammed, rolled and compacted to required camber and gradient to uniform smooth surfaces by mechanical paver and using with 8-12 tonne power roller (including supply of premixed macadam, binder and chippings) for depth of potholes exc 30 mm, complete all as specified and directed.

Scarifying or picking gravelled, macadam or bituminous macadam surfaces in area not exceeding 400 sqm, depth exceeding 50mm and not. exc 100mm deep (Scarifying include racking over and grading the broken up surface to the proper camber etc. as required) , complete all as specified and directed.

M&L total 7.5cm thick (compacted thickness) Water Bound Macadum (WBM), with coarse aggregates of lime stone, Sand stone, Flint or Quartzite grading 2 (63 to 40mm size) or grading 3 (50 to 20mm size) spread, rolled and consolidated to required gradient and camber with 8 to 10 tonne power roller including preparation of unsurfaced WBM surfaces by brushing with wire brushes for removing caked, mud etc, sweeping with brooms and finally fanning the cleaned surfaces with gunny bags to remove all loose dirt etc, complete all as specified and directed. [Note : (i) The finished surface tolerances to be as per Table 900-1 of MoRTH specifications for Road and Bridge Works 2013.(ii) Stack measurement of WBM materials brought at site shall be entered in MB as "Not to be abstracted" before payment.(iii) Approved certificate of mixing properties & proportion of qty of WBM materials shall be obtained from GE before execution of work. Payment shall be made only after adherence to the same alongwith submission of road roller register/ log book.(iv) Unit rate quoted by bidder shall inclusive testing charges as above & as per MoRTH & no extra claim against testing charges shall be entertained later on.]

M&L total 15cm thick (compacted thickness)(in two layers of 7.5cm each) Water Bound Macadum (WBM), with coarse aggregates of lime stone, Sand stone, Flint or Quartzite grading 2 (63 to 40mm size) or grading 3 (50 to 20mm size) spread, rolled and consolidated to required gradient and camber with 8 to 10 tonne power roller including preparation of unsurfaced WBM surfaces by brushing with wire brushes for removing caked, mud etc, sweeping with brooms and finally fanning the cleaned surfaces with gunny bags to remove all loose dirt etc, complete all as specified and directed. [Note : (i) The finished surface tolerances to be as per Table 900-1 of MoRTH specifications for Road and Bridge Works 2013.(ii) Stack measurement of WBM materials brought at site shall be entered in MB as "Not to be abstracted" before payment.(iii) Approved certificate of mixing properties & proportion of qty of WBM materials shall be obtained from GE before execution of work. Payment shall be made only after adherence to the same alongwith submission of road roller register/ log book.(iv) Unit rate quoted by bidder shall inclusive testing charges as above & as per MoRTH & no extra claim against testing charges shall be entertained later on.]

Preparation of unsurfaced Water Bound Macadam (WBM)/ Wet Mix Macadam (WMM) surfaces by brushing with wire brushes for removing caked mud, sweeping with brooms and finally fanning the cleaned surface with gunny bags to remove all loose dust or dirt etc. & M&L & applying evenly a prime coat of Cationic Bitumen emulsion SS-1 conforming to IS : 8887 at a rate of application of 0.7 - 1.0 kg/sqm on surface of WMM/WBM as specified in Table 500-3 of MoRTH specification for Road and Bridge Works 2013, using mechanical sprayer after cleaning of existing surface, complete all as specified and directed.

M&L premixed bituminous macadam over primed surface of road using paving bitumen VG-30 & temperature as per table 500-1 & 500-2 of MoRTH & as per IS : 73, laid/rolled by 8 to 10 tonne capacity roller and compacted to required gradient and camber (consolidated thickness 75 mm or less) including preparation of area before laying of Macadam with mechanical paver, binder contents of premixed macadam shall be 4% by weight of total mix (Design Mix), complete all as specified and directed. [Note : (i) Work shall be executed after approval of design mix of bituminous macadam by GE. (ii) Calibration of Hot Mix Plant shall be submitted to Engr-in-Charge for approval. (iii) Payment shall be made to Contractor after submission of approved design mix, bitumen extraction report, Road Roller register & calibration report. (iv) Exact qty of binder to be used shall be ascertained by Design Mix. (v) Minimum 4% binder shall be used. However, in case more than 4% of binder content is required as per design mix, the same shall be provided by the contractor at no extra cost to dept (vi) Course aggregate's physical property as per MoRTH table 500-6 & mixing of all aggregates as per table 500-7 of MoRTH. (vii) Unit rate quoted by bidder shall inclusive testing charges as above & as per MoRTH & no extra claim against testing charges shall be entertained later on.]

M&L, applying 25mm thick mastic asphalt consisting of an intermate homogeneous mixture of mineral filler, well graded fine and coarse aggregate, industrial grade bitumen meeting the requirement given in table 500-39 of MoRTH, coarse, fine, filler aggregates shall be as per MoRTH table 500-06, 500-40, 500-41 & prepared by using Mastic cooker, as mentioned in SSR Part-I/ MoRTH specification, quantity of bitumen in the range of 14% to 17% of total mix (without coarse aggregate) as indicated in Table : 500-42 of MoRTH cooked at 170 degree to 210 degree centigrade laid hot in temperature 175 degree to 210 degree centigrade trowelled and floated by means of wooden float laid, bitumen mastic after spreading and while still hot in plastic condition shall spread over with bituminous precoated hard fine aggregate of size 9.5mm or 13.5mm @ 0.005 Cum per 10 Sqm and at an approximate spacing of 10cm centre to centre in both direction, poured into surface when the temperature of surface is not less than 100° C, protruding 3mm to 4mm over mastic surfaces as per clause 515 of MoRTH , mixed with 0.17 Kg per 10 Sqm of bitumen of VG-30 meeting the requirement of IS for anti skidding including all material, labour, tools and plants and over & including a tack coat of VG-10 conforming to IS : 73 at a rate of application of 0.3-0.4 Kg/Sqm on bituminous surface ensuring the surface is clear & free from loose materials as specified in Table 500-5 of MoRTH specification for road and bridge works 2013, using mechanical sprayer over prepared base as per Design Mix of IRC-107-2013 after cleaning of existing surface complete all as specified and directed.

[Note : (i) Work shall be executed after approval of design mix of mastic asphalt by GE. (ii) Calibration of Mastic Plant shall be submitted to Engr-in-Charge for approval. (iii) Payment shall be made to Contractor after submission of approved design mix, bitumen extraction report & calibration report. (iv) Exact qty of binder to be used shall be ascertained by Design Mix. (v) Unit rate quoted by bidder shall inclusive of testing charges as indicated above & as per MoRTH.]

M&L Bituminous semi dense asphaltic concrete, 40mm consolidated thickness with minimum 5.5% binder with paving bitumen (VG-30) [Mix Design criteria as per SSR Part-I Clause 20.B.2.11, or as per MoRTH by Marshal method (Ref table 500-12 to 500-16)] coarse aggregate, fine aggregate, filler cement (OPC - 43 Gde) as per recommendation of design by weight of total mix from hot mix plant, rolled by with 8 to 12 tonne vibrating (tandom) road roller to confirm uniform surface and compacted to required camber and gradient including preparing black top surfaces by brushing with wire brushes for removing caked mud etc., sweeping with brooms and finally fanning the cleaned surface with gunny bags to remove all loose dirt etc. and applying evenly a tack coat of VG-10 conforming to IS: 73 at a rate of application of 0.3-0.4 kg/sqm on bituminous surface as specified in Table 500-5 of MoRTH Specification for Road and Bridge Works 2013, using mechanical sprayer, complete with mechanical paver, complete all as specified and directed. [Note : (i) Work shall be executed after approval of design mix of semi dense asphaltic concrete by GE.(ii) Calibration of Hot Mix Plant shall be submitted to Engr-in-Charge for approval.(iii) Payment shall be made to Contractor after submission of approved design mix, Bitumen Extraction Report, Road Roller Register & Calibration Report.(iv) Exact qty of binder to be used shall be ascertained by Design Mix.(v) Minimum 5.5% binder shall be used. However, in case more than 5.5% of binder content is required as per design mix, the same shall be provided by the contractor at no extra cost to dept.(vi) All testing charges shall include in unit rate quoted by bidder.]

M&L roling and consolidating road formation surfaces in cutting with 8 to 12 tonne power roller, complete all as specified and directed.