CA NO CWE/PAT/T-27/2022-23 SPECIAL REPAIR TO ROADS IN TECHNICAL AREA AT FAD DAPPAR UNDER GE PROJECT DAPPAR

Amount

Scarifying or picking up gravelled macadam or bituminous macadam surface area exc 400 sqm with depth exc 50mm and n.exc 100 mm complete all as specified and as directed.

M&L for repair to pot holes any depth not exc 1.00 Sqm each including sweeping free from dust and mud or water. Scoring sunken surfaces in road, cutting around edges to at least 25mm in depth, making good by by filling in screened and graded road metal, watering and well ramming (including supply of road metal) complete all as specified and as directed.

75 mm thick compacted thickness water bound macadam with coarse aggregate (granite trap or basalt) of grading 2 (63 to 40mm size) or of grading 3 (50 to 20mm size), spread, rolled and consolidated with 8 to 12 tonne power rollerand consoildated to gradient and required camber granite,trap or basalt complete all as specified. complete all as specified and as directed.

Preparing unsurfaced water bound macadam by brushing with wire brushes for removing caked mud etc., sweeping with brooms and finally fanning the cleaned surfaces with gunny bags and air compressor to remove all loose dirt etc. and applying a tack coat of paving bitumen of grade VG-10 @ 10 Kg per 10 Sqm complete all as specified and as directed.

Providing and laying Premix Bituminous macadam of consolidated thickness n. exc. 50mm, using paving bitumen binder of grade VG-30 @ and binder content of 4% by weight of total mix with mixing of aggregates and VG-30 bitumen in electronic operated 100-120 TPH batch type hot mix plant, transporting the hot mix from HMP to work site by tippers and laying with hydrostatic paver finisher (Paver shall not be compulsory in case of patch work using B.M.) and as per approved mix and rolled & compacted to required camber and gradient with 8 to 12 tonne smooth wheeled, vibratory and tandem roller, complete all as per Clause 504 MoRTH (5th Rev) specification and as specified and as directed. NOTES : 1. The contractor shall quote the rate against Item considering 4% VG-30 bitumen content. Job Mix Formula as per CI. No. 505.3.3 of MORTH (5th Rev) for BM shall be got worked out by the contractor (without any financial effect to the Deptt) from Thapar Institute of Engg & Tech Patiala/ NIT Kurukhshetra/ PEC Chandigarh/ CTL for obtaining optimum binder content (OBC) and same shall be submitted GE for approval. Any variation in binder content on minus side shall be adjusted @ 42/kg of binder and no adjustment shall be made on plus side. 2. The 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.

Preparation of bituminous surfaces and applying evenly a Tack Coat conforming to Clause 503 of MORT&H Specifications for Road and Bridge Works (Fifth Revision), with cationic bituminous emulsion RS1 grade, conforming to IS-8887 (latest edition) @ 2.5 kg per 10 sq metres using primer distributor which shall be self-propelled or towed bitumen pressure sprayer complete all as specified and as directed.

Providing and laying premixed bituminous concrete 30mm consolidated thickness with 5.5% binder (paving bitumen of grade VG-30) content by weight of total mix and crushed aggregates of grading 2 with mixing of agrgregates and VG-30 bitumen in electronic operated 100-120 TPH batch type hot mix plant, transporting the hot mix from HMP to work site by tippers and laying with hyrdostatic paver finisher, rolled & compacted to required camber and gradient 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. NOTES : 1. The contractor shall quote the rate for this Item considering 5.5% VG-30 bitumen content. Job Mix formula as per CIause. No. 505.3.3 of MORTH (5th Rev) for BC shall be worked out from Thapar Institute of Engg & Tech. Patiala/ NIT Kurukshetra/ PEC Changigarh/ CTL for obtaining Optimum Binder Content (OBC) by the Contractor without any financial effect to the Dept and same be submitted to the GE for approval. Any variation in binder content on minus side shall be adjusted @ Rs 50/kg of binder and no adjustment shall be made on plus side. 2. Cost of filler i.e. cement (Ordinary portland cement/OPC) is deemed to be included in quoted unit rate. 3. After spreading of mix as per clause 507.4.7 entire surface during the operation shall be rolled with road roller 8-10 tonne (smooth wheeled) followed with vibratory road roller of 8-10 tonne static weight, followed by finished rolling with 6 to 8 tonne smooth wheel tendom roller as per Clause Nos. 507.4.8 and cost of the same is deemed to be included in quoted unit rate.

shree balaji builders

BAL SINGH & SONS