REPAIR TO CERTAIN ROAD IN DOMESTIC AREA VAYU VIHAR, WSA I AND II AT AF STN ADAMPUR

Material and labour for repair to pot holes, depth not exceeding 30 mm and area not exceeding 1.0 Sqm each, including sweeping free from dust and mud or water, scoring sunken surfaces of road, cutting around edges to at least 25 mm in depth, making good by applying paving bitumen (VG-10) @ 5kg per ten sqm, putting in premixed well rammed and sealed with binder 6.8Kg/10 Sqm blinded with 0.06 cum of stone chipping 6.3 mm size and again well rammed/ rolled to uniform smooth surface, complete all as specified and directed.

Scarifying or picking gravelled, macadam or bituminous macadam surfaces exc 50 mm deep and n exc 100 mm deep in area n exc 400 sqm complete all as specified and directed.

Material and labour for Preparation of unsurfaced water bound macadam surfaces by brushing with wire brushes for removing caked mud etc. sweeping with brooms and finally fanning the cleaned surfaces with air compressor to remove all loose dirt etc. and applying evenly a priming/tack coat with paving bitumen of grade VG-10 @ 10 kg/10 sqm with mechnical sprayer complete all as specified and as directed.

Material and labour for providing Premixed bitumenous macadam not exceeding 75mm (Consolidated thickness) thick using paving bitumen @ 4% (VG-30) binder content by weight of total mix, mixed in computerized hot mix plant, laid with mechanical paver, rolled and compacted to required gradient and camber with power road roller 8 to 10 tonne capacity complete all as specified and as directed.

Material and labour for preparing existing black top/bitumenous macadum surfaces by brushing with wire brushes for removing caked mud etc., sweeping with brooms and finally fanning the cleaned surfaces with air compressor to remove all loose dust & dirt etc. including draining off water if any from pot holes and applying evenly a priming/tack coat with paving bitumen (VG-10 grade) @5Kg/10Sqm with mechanical sprayer on black top surfaces, complete all as specified and directed.

Material and labour for premixed semi dense asphaltic concrete 30mm thick consolidated thickness, using combined graded aggregate i.e. crushed stone coarse aggregate, fine aggregate (sand) & filler (inherent filler/OPC 43 grade) of physical properties as specified (refer SSR Part-I of 2009), pre-heated, mixed with 5.5% binder content (as per design mix ) by weight of total mix using VG-30 grade paving bitumen, laid with mechanical paver, rolled & compacted to a uniform smooth surface with vibratory tendum roller of 8 to 10 tonne capacity , complete all as specified and directed. Notes:- (i) Thickness of semi dense asphaltic concrete and quantities of materials as mentioned in particular specification/SSR are the minimum. The quoted rate shall also be deemed to include for provision of more materials in comparison to those mentioned/specified in the item, if required, to achieve the required level, gradient, camber and shape all as directed. (ii) Hot mix plant of adequate capacity shall be used for heating and mixing crushed stone coarse aggregate, fine aggregate and binder (bitumen) and shall be approved by GE. Semi dense asphaltic cooncrete shall be laid in single layer with self propelled mechanical paver all as directed. (iii) Contractor's quoted rates shall be deemed to include all these aspects. (iv) The Job design mix formula shall be carried out from the NABL approved lab/ Engineering Collage/IIT and got approved from GE before commencement of the work.

Material and labour in repair for bitumen mastic wearing course 25mm thick (Consolidated thickness , as per specifications) using industrial bitumen of grade 85/25 confirming to IS :702 (consididering bitumen using 10.20% as per MORTH Specification), prepaired by using mastic cooker and laid to required gradient and chamber including applying primer confirming to IS:8887 evenly @ 0.3kg/sqm after preparing surfaces, and providing anti skid surface with hard stone chipping of size 9.50 mm to 13.20 mm ( as approved) mixing with 2% filler and pre-coated with bitumen S-65 penetration grade @ 2% by weight @ 0.005 Cum per ten square metre and at approximate spcing of 10cm centre to centre in both directions pressed into surface protruding 01mm to 04mm over mastic surface, including cleaning the surface, removal of debris etc. out side MOD land complete all as specified and directed.

Demolition of plain cement concrete in any position and any description and removal of debris outside MoD land, complete all as specified and directed.

Material and labour for 100 mm thick plain cement concrete 1:4:8 type D-2 using 40mm graded crushed stone aggregate as in sub base, finished fair and even without using extra cement complete all as specified and directed.

Material and labour for 60mm thick Factory made chamfered edge cement concrete paver block of M-35 grade with approved colour, design & pattern as in hardstandings, drive ways or Medium traffic parking etc. of required strength, thickness & size/shape, made by table vibratory method using PU mould, laid in required colour & pattern over and including 50mm thick compacted bed of fine sand, compacting and proper embedding/laying of inter locking paver blocks over the sand bedding layer through vibrator, compacting by using plate vibrator, filing the joints with sand and cutting of paver blocks as per required size and pattern, finishing and sweeping extra sand complete all as specified and as directed.