REPAIR TO CERTAIN ROADS IN ZONE-A AND ZONE- B UNDER GE (N) BIKANER AT KANASAR MIL STN

Scarifying or picking gravelled, macadam or bituminous macadam surfaces in area not exceeding 400 sqm, depth exceeding 50 mm and not exceeding 100 mm, complete all as specified and as directed.

M&L for continuous Jodhpur stone slab edging, 60-70mm thickness, 25 cm to 30 cm wide (for depth of edging) and 60 cm to 90 cm long, laid dry vertically, jointing and pointing in CM 1:4, each stone slab self faced on both the vertical sides, edges slightly true and square on top edge, hammer dressed for the full thickness so that the depression from a straight edge held against the surfaces shall not exceed 20 mm between two joints of slab including necessary excavation and embedding stone edging to depth required and tamping ground around stone edging and also including spreading surplus soil on berms complete all as specified and as directed. Notes :- (i) The stone slabs shall be laid abutting to each other in such a way that thickness of edging is equal to thickness of stone slabs and depth of edging is equal to width of stone slabs. (ii) The stone slabs shall be obtained from “Chitter quarry” at “Jodhpur”. (iii) In case edging is laid on both sides of a road, each side of road shall be measured and paid for separately.

M&L for 75 mm thick (Compacted thickness) WBM with coarse aggregates of granite, trap or basalt stone of grading 2 (63 mm to 40 mm size) or of grading 3 (50 to 20 mm size), blinded with screening of hard stone of grading ‘A’, spread, watered and rolled with 8 to 12 tonne power roller, hollows made up to form true surface and consolidated to required gradient and camber etc, complete all as specified and as directed

M&L for 150 mm thick (Compacted thickness) WBM, in two layers (75 mm thick each layer) with coarse aggregates of granite, trap or basalt stone of grading 2 (63 mm to 40 mm size) or of grading 3 (50 to 20 mm size), blinded with screening of hard stone of grading ‘A’, spread, watered and rolled with 8 to 12 tonne power roller, hollows made up to form true surface and consolidated to required gradient and camber etc, complete all as specified and as directed

M&L for preparing by brushing with wire brushes for removing caked mud etc including sweeping with brooms and finally fanning the cleaning surface free from dust and mud, sunken surfaces with gunny bags to remove all loose dirt existing road surfaces and making good complete all as specified and as directed.

M&L for repair to potholes any depth, not exc 1 sqm each including sweeping free from dust and mud, or water, scoring sunken surfaces in roads, paths, etc. cutting around edges to at least 25 mm in depth, making good by filling in screened & graded road metal, watering and well ramming (including supply of road metal of granite, trap or basalt stone), complete all as specified and as directed.

M&L for preparing old black top surfaces by brushing with wire brushes for removing caked mud etc including sweeping with brooms and finally fanning the cleaning surface free from dust and mud, sunken surfaces with gunny bags to remove all loose dirt existing road surfaces and making good complete all as specified and as directed.

M&L for applying evenly a premix/tack coat of catonic bitumen Emulsion (SS-1) confirming to IS:18887 at the rate of 0.70 to 1.0 Kg per Sqm on WMM/WBM as specified in Table 500-5 of MaRTH specification for road and bridge work 2013, by sprayer operated on hot pressure mechanism complete all as specified and as directed.

M&L for applying evenly a premix/tack coat of catonic bitumen Emulsion (SS-1) confirming to IS:18887 at the rate of 0.20 to 0.30 Kg per Sqm on bitumimious surface as specified in Table 500-5 of MaRTH specification for road and bridge work 2013, by sprayer operated on hot pressure mechanism complete all as specified and as directed.

M&L for providing, laying, spreading premix bituminous macadam with crushed and graded stone aggregate mixed together with 4% of paving bitumen of grade VG-30 by weight of total mix including heating bitumen to the required temperature, mixing bituminous macadam in automatic and temperature controlled hot mixing with electronic operated 60-90 TPH batch type hot mix plant, transporting the hot mix from HMP to work at site by tippers and laying, spreading uniformly by means of hydrostatic paver finisher and rolling and consolidating to the required gradient and camber (consolidated thickness 75 mm or less) with 8 to 12 tonne smooth wheeled, vibratory and tandem roller, complete all as per Clause 507 MORTH (5th Rev) specification and as specified and directed. Note : (i) The contractor shall quote the rate against item considering 4% VG-30 bitumen content. Job Mix Formula as per CIause No. 505.3.3 of MORTH (5th Rev) for BM shall be worked out from MNIT Jaipur/MBM Jodhpur/ Govt Engineering Collage/Lab/ CTL for obtaining Optimum Binder Content (OBC) by the Contractor without any financial effect to the Department and same be submitted to the Accepting Officer for approval. Any variation in binder content on Minus side shall be adjusted @ 50/Kg of binder and no adjustment shall be made on Plus side. (ii) The bituminous macadam (BM) shall be covered with top layer/wearing course within in a maximum of 48 hours. If there is to be any delay by the contractor the course shall be covered by seal coat to the requirement of Clause 512 of MORTH (5th Rev) before opening to the traffic. The seal coat in such cases shall be considered incidental to the work and shall not be paid for separately. (iii) Job mix formula shall be approved by CWE