Improvements to Riding Surface at Km.22/6-8 of Kalahasti Pallampeta road via Pillamedu, Kanaparthi road in Tirupati District

Earthwork excavation in soils up to SDR by mechanical means including trimming bottom and side slopes in accordance with requirements of lines, grades and cross sections etc., complete for finished item of work for trench cutting as per MoRT&H Specification 301 (5th Revision) and as directed by the Engineer-in-Charge.

Construction of Granular sub-base by providing HBG material conforming to Grading - V of MoRT&H Table 400-1 including cost and conveyance of all materials to work site and spreading in uniform layers with motor grader or by approved means, on prepared surface mixing by mix in place method with Rotavator or approved means at OMC and compacting with vibratory roller to achieve the desired density etc., complete for finished item of work as per MoRT&H Specification 401 (5th revision) and as directed by the Engineer-in-Charge.

Providing Dry lean cement concrete Sub-base over a prepared sub-grade with coarse and fine aggregate conforming to IS: 383, the size of coarse aggregate not exceeding 25 mm, aggregate cement ratio not to exceed 15:1, aggregate gradation after blending to be as per table 600-1, cement content not to be less than 150 kg/cum, optimum moisture content to be determined during trial length construction, concrete strength not to be less than 10 Mpa at 7 days, mixed in a batching plant, transported to site, laid with a paver with electronic sensor/manual means without Paver, compacting with 8-10 tonnes vibratory roller, finishing and curing complete for finished item of work as per MoRT&H (5th Revision) specification 601 and as directed by the Engineer-in-Charge for base coarse below CC Pavement.

Construction of un-reinforced, dowel jointed, plain cement concrete pavement over a prepared sub base with 43 grade cement @ 400 kg per cum, coarse and fine aggregate conforming to IS 383, maximum size of coarse aggregate not exceeding 25 mm, and conforming to clause 602.2.6.4 mixed in concrete mixer 0.28/0.4 Cum capacity (6 mixers) with weigh batcher as per approved mix design, laid with a fixed form paver and manual means without paver, spread, compacted and finished in a continuous operation including provision of joint filler, separation membrane, sealant primer, joint sealant, debonding strip, dowel bar, tie rod, admixtures as approved, dowel compound, finishing to lines and grades etc., as per MoRT&H Specification No. 602 (5th Revision) and as directed by the Engineer-in-Charge.

Providing, Laying, Spreading and compacting graded HBG crushed stone aggregate to Wet Mix macadam specification (5th Revision) as per Table 400-13, including cost of all materials and including premixing the material with water at OMC in Mechanical mix plant carriage of mixed material by tipper to site, laying in uniform layers with paver in base courses on well prepared surface and compacting with Vibratory roller to achieve the desired density etc., as directed by the Engineer-in-Charge and as per MoRT&H specification 406 (5th revision) for finished item of work.

Providing and applying prime coat with bitumen emulsion (SS1) Bulk using emulsion pressure distributor on prepared surface of granular base including clearing of road surface and spraying emulsion at the rate of 0.70 kg/sqm using emulsion pressure distributor for finished item of work etc., complete as per MoRT&H Specification 502 (5th revision) and as directed by the Engineer-in-charge.

Providing and applying tack coat with bitumen VG-10 (Bulk) using Bitumen pressure distributor at the rate of 0.25 kgs per sqm on the prepared Granular surface treated with primer cleaned with mechanical broom for finished item of work as per MoRT&H Specification 503 (5th revision) and as directed by the Engineer-in-Charge.

Providing 30mm thick compacted Bituminous Concrete with 100-120 TPH Batch Type Hot Mix Plant using HBG crushed aggregates of Grading–2 as per Table 500-17, premixed with Bituminous binder of VG 30 Grade as per Jobmix formula with a minimum of 5.4% by mass of total mix and filler, transporting the hot mix to work site, laying with hydrostatic sensor paver finisher to the required grade, level and alignment, rolling with smooth wheeled, vibratory and tandem rollers to achieve the desired compaction as per MoRT&H Specification 507 (5th Revision), complete for finished item of work in all respects as directed by Engineer-in-Charge.

Forming shoulders with borrowed useful selected earth having MDD of not less than 1.75 gms/cc from outside road boundary by mechanical means with all leads and lifts including pre-watering of soil at borrow area, removal of top soil, excavation of soils at borrowed area, conveyance of soil, depositing the soils on the embankment, spreading soils, breaking clods, sectioning and consolidation with vibratory road roller @ OMC to meet requirement of Table 300-2 of MoRT&H including all hire and operational charges of T&P, complete for finished item of work as per MoRT&H Specification 305 (5th revision).