4(2)/GEN/NIeT/EE/DED/GTA/26-27

Excavation in Soil by Manual Means Excavation for roadway in soil using manual means including loading in truck for carrying of cut earth to embankment site with all lifts and leadupto1000metres (Referenceto MoRT&H's specification clause 301).

Excavation in Hard Rock (blasting prohibited) Excavation for roadway in hard rock (blasting prohibited) with rock breakers including breaking rock, loading intippersanddisposalwithin all lifts and lead upto 1000metres, trimming bottomand side slopes in accordance with requirements of lines, grades and cross sections (Reference toMoRT&H's specification clause 301).

By Mix in Place Method Construction of granular sub-base by providing graded materials such as natural sand/crushed gravel/crushed stone/combination depending upon the required grading , spreading in uniformlayerswithmotor grader on prepared surface, mixing by mix in place method with rotavator and compacting with vibratory roller to achieveat least 98%of themaximum dry density for the material determined as per IS:2720 (Part 8), complete as per clause 401 desired density, complete as per clause 401 B(iii) Rate per cum for grading-III Material

Water Bound Macadam Providing, laying, spreading and compacting stone aggregates of specific sizes to water bound macadam specification including spreading in uniformthickness, hand packing, rollingwith3wheeledsteel/ vibratory roller 8-10 tonnes in stages topropergradeandcamber,applying and brooming requisite type of screening/bindingMaterials tofillup the interstices of coarse aggregate, watering and compacting to the required density (Reference to MoRT&H's specification 404). A(iii) Using Screening Crushable type such

Prime Coat Providing and applying primer coat with cationic bitumen emulsion SS1 grade conforming to IS:8887 on prepared porous granular surface including clearing of road surface and spraying primer using mechanical means (Reference to MORT&H's specification clause 502). On WMM/WBM surface @ 0.70-1.0kg /sqm.

Tack Coat Providing and applying tack coat with Cationic bitumen emulsion (RS1) complyingwith IS:8887using emulsion pressure distributor on the prepared bituminous/granular /cement concrete pavement surface cleaned with mechanical broom and high pressure air jet (Reference to MORT&H's specification clause 503).

Open - Graded Premix Surfacing Providing, laying and rolling of open-gradedpremix surfacingof 20mmthicknesscomposedof13.2 mmto 5.6mmaggregates either using viscosity grade bitumen of approved grade to required line, gradeandlevel toserveaswearing course on a previously prepared base, includingmixinginasuitable plant, laying and rolling with a smoothwheeled tandemor other approved type roller 8-10 tonne capacity, finishedtorequiredlevel andgrades(ReferencetoMORT&H's specification clause 510). Case-I:Mechanicalmethodusing approved grade Bitumen and HMP of appropriate capacity not less than 75 tonnes/hour .

Seal Coat Providing and laying seal coat sealing the voids in a bituminous surface laid to the specified levels, grade and cross fall using. Type A and B seal coats (Reference to MORT&H's specification clause 511) Case - II : Type B Providingandlayingofpremixsand seal coat with HM Pusing approved crushed stone chipping and viscosity grade paving bitumen of suitable approved grade.

Excavation for StructuresEarth work in excavation offoundation of structures as perdrawing and technical specification, including setting out, construction of shoring and bracing, removal of stumps and other deleterious matter, dressing of sides and bottom and backfilling with approved material (Reference to MORT&H's specification 304). 1(I) Ordinary soil 1(I)A Manual Means 1(I)A(i) Depth upto 3 m

Plain cement concrete 1:3:6 nominal mix in foundation with crushed stone aggregate 40 mm nominal size mechanically mixed, placed infoundationand compacted by vibration including curing for 14 days (Reference to MORT&H's specification 2100).