REPAIR/MAINT OF ROAD WITH ALLIED WORKS AT 24 ED AF STN MANAURI

Preparing of existing black top surfaces by brushing with wire brushes for removing caked mud etc sweeping with brooms and finally fanning the cleaned surfaces by air compressor to remove all loose dust/dirt etc and applying evenly a priming/tack coat of paving bitumen grade Vg-10 @ 5 Kg per 10 Sqm and laying bituminous premix Semi Dense Asphaltic Concrete (Gde-II), 30 mm consolidated thickness with minimum 5.5% binder content (bitumen grade VG-30) by weight of total mix in hot mix plant, laid with mechanical paver and rolled to a uniform smooth surface with 12 tonnes articulated tandem roller (Double drum vibratory roller) and compacted to required camber and gradient complete all as specified and directed. Note: (i) The mix shall be mixed in hot mix plant and laid with mechanical paver only. (ii) The mix shall be prepared by designing through job mix formula all as specified from Govt. engg college / Govt approved lab/HBTI. (iii) No price adjustment for Bitumen shall be done for variation on plus side and price adjustment for Bitumen for minus side will be @ Rs 55.00 . (iv) Semi Dense Asphaltic Concrete will be comprising of 2% filler material (OPC 43 grade cement). (v) Cost of testing changes, material & transportation for job mix formula shall be deemed to be included in the rate quoted.

Scarifying or picking gravelled, macadam or bituminous macadam surface in area not exceeding 400 sqm and depth exceeding 50 mm and not exceeding 120 mm deep and removing extracted material to out side of MOD land complete all as specified and directed.

M&L for 75 mm thick (compacted thickness) WBM with coarse aggregate grading 2 (63 mm to 40 mm size) or grading 3 (50mm to 20mm size) with gravels, trap or basalt stone, spread, rolled and consolidated with 8 to 10 ton power roller to required gradient and camber complete all as specified all as specified and directed.

M&L for preparing unsurfaced WBM surface by brushing with wire brushes for removing caked mud etc. sweeping with brooms and finally fanning the cleaned surfaces by air compressor to remove all loose dirt etc and applying evenly a priming coat with paving bitumen grade Vg-10 @10 Kg per 10 Sqm and laying bituminous premix Semi Dense Asphaltic Concrete (Gde-II), 30 mm consolidated thickness with minimum 5.5% binder content (bitumen grade VG-30) by weight of total mix in hot mix plant, laid with mechanical paver and rolled to a uniform smooth surface with 12 tonnes articulated tandem roller (Double drum vibratory roller) and compacted to required camber and gradient complete all as specified and directed. Note: (i) The mix shall be mixed in hot mix plant and laid with mechanical paver only. (ii) The mix shall be prepared by designing through job mix formula all as specified from Govt. engg college / Govt approved lab/HBTI. (iii) No price adjustment for Bitumen shall be done for variation on plus side and price adjustment for Bitumen for minus side will be @ Rs 55.00 . (iv) Semi Dense Asphaltic Concrete will be comprising of 2% filler material (OPC 43 grade cement). (v) Cost of testing chrages, material & transportation for job mix formula shall be deemed included in the rate quoted.

M&L for premix bituminous macadam ("Grade II" as specified in MORTH specification Para 504), laid/rolled and compacted to required gradient and camber (consolidated thickness 50-75mm) using paving bitumen VG-30 grade as binder minimum 4% by weight to total mix, mixed in hot mix plant and laid by mechanical paver and rolled to a uniform smooth surface and rolled and compacted to required gradient and camber with 8-12 tonnes articulated tandem roller (Double drum vibratory roller) complete all as specified and directed.

M&L for repair to pot holes depth not exc. 30 mm, area n.exc 1 sqm each including sweeping free from dust and mud or water, scoring sunken surfaces in roads, paths etc, cutting around edges at least 25 mm in depth, making good by applying tack coat with paving bitumen VG-10 @ 5 kg per 10 Sqm (using mechanical sprayers only) and putting in premixed bituminous macadam, well rammed and sealed with binder 9.80 Kg/10Sqm, binded with 0.09 Cum of stone chippings 6.3mm size and again well rammed (including supply of premixed macadam, binder and chippings) complete all as specified and directed.

M&L for applying evenly a priming/tack coat with bituminous primer at 5 Kg per 10 Sqm complete all as specified and directed.

M & L cleaning bituminous/concrete road surface free from all dirt, dust and other foreign material etc. and applying 2mm thick hot thermoplastic retro reflective road marking paint of white/yellow colour as in strips/lines on road surfaces upto 150 mm width and including glass beads @ 0.45 kg/sqm. The hot application shall be carried out mechanically and the finished surface to be levelled uniform and free from scars and holes complete all as specified in MORTH clause 803.4 and as directed.