| 1 | General note applicable to all sections :
1) Only sieved river sand confirming to Zone-II from Godavari river or Varaha river or Vamsadhara river or Sarada river or Nagavali river / Crushed stone sand shall be used as fine aggregate and Graded hard broken granite metal of 3 stage (VSI) material shall be used as coarse aggregate in relevant items. Specification for fine and coarse aggregate shall confirm to IS:383 (latest revision)
2) In view of limit on water-cement ratio for durability requirements in design mix concrete, concrete admixtures (Carboxylate based superplasticizers of makes for guidance to bidders as per annexure B of section VII) can be used after taking prior approval of Engineer-in-Charge and the rates quoted for concrete items shall be inclusive of the cost of admixtures, Design mix, trial mixes, testing (at site & at approved labs), etc. complete.
3) The contractor shall set up automatic batching plant/sufficient number of self loading mobile concrete mixers inside the project area for the production of concrete.
4) Contractor may also be allowed to procure concrete from prior approved RMC plants on prior approval of the BARC subject to maintain required slump at site during pouring.To that extent suitable Mix Design should be carried out with required retention period. 5) Manufacturer's Test certificate of cement which is procured from dealer/company is to be submitted for all cement related works by the contractor.
6) "Substrcture" refers to the part of structure upto top level of ground floor grade slab and "Superstructure"refers to the part of structure above the top of the ground floor grade slab. | | |
| 2 | 7) The Scope of works which are not included in any specific items but indicated in the document "General Scope of all works" shall be within the scope of overall contract works. The cost of work/item/material indicated in this document shall be deemed to be included in the quoted rates of all individual items.
8) The rate quoted for the items by the bidder shall include the makes for guidance to bidders as per Annexure B of Section VII of tender document. Any other additional makes proposed by the bidder have to be informed to BARC before pre-bid meeting (to be held before submission of bids) and to be approved by BARC.
9) The quoted rates shall include necessary royalties, seigneiorage charges,etc. and all other charges to supply all the required construction materials.
10) For all standards and code of practices, specifications, like Indian Standard, MORT&H, ASTM, etc. refer only latest revisions including all applicable amendments, revisions and additional publications (during contract period) and these have to be followed.
11)Prior approval for source of all construction materials by submission of relavent test certificates, documents, invoices etc. have to be taken from BARC.
12) All the tests mentioned in Quality Assurance Plan(QAP) should be carried out without any extra cost.
13) The contractor has to submit all royalty /seigneiorage slips,etc for all the naturally available construction materials before submitting the RA bills. | | |
| 3 | Notes applicable to EARTHWORK EXCAVATION & FILLING WORKS : The rate quoted is deemed to have included the following:
a) Removal and cutting of all kinds of vegetation, shrubs, bushes, stumps , roots, grass, weeds, light/heavy jungle etc., trees upto girth of 30 cm when measured 1 metre above ground level alongwith roots, including disposal/stack in the identified location.
b) shoring, strutting, stepping, dressing, grading required for keeping the earth in position on sides of trenches with approved timber/steel accessories wherever necessary to prevent sides from falling including bailing or pumping out of water if necessary including removal of debris/unserviceable materials and excavated excess soil, if any.
c) dewatering of both ground and surface water, including removal of slurry generated while excavation and keeping the area free from water, to be let out of the building area through proper pipes & channels if required by suitable pumps,
d) watering, ramming and thoroughly consolidate the bottom of all excavations & ground before the construction of foundation/footing/plinth beam, filling in basement or other work is commenced.
e) the loose pockets shall be excavated and compacted after back filling as directed by Engineer-in-charge, as per detailed specification and conforming to safety rules during progress of the work.
f) Contour levels to be taken jointly with the Engineer-in-charge and prior written approval be taken before starting any excavation/ filling at every 3 m grids for arriving at the actual quantity | | |
| 4 | g) Backfilling will be done in layers of thickness as specified below.
h) Cost inclusive of necessary royalties, seigneiorage charges and other charges to supply all the required construction materials,
i) cost of items shall include all labour charges, hire charges of machinery, lubricants, fuels and tests etc.
j) Measurement/Payment will be reststicted to PCC/drawing dimensions only.
k) Clearing & grubbing and removal of top 150 mm soil and compaction of the original ground with vibratory power roller to achieve hard and level surface including the disposal of removed top soil within a lead of 200 m from site boundary.
l) It shall include necessary excavation, backfilling of pits resulting from uprooting of trees and stumps to required compaction, handling, salvaging, and disposal of cleared materials. | | |
| 5 | Clearing Jungle including uprooting of rank vegetation, grass, brush wood, trees and saplings of girth up to 30 cm measured at a height of 1m above ground level and removal of rubbish up to a distance of 50 m / outside the periphery of the area cleared as per specifications and as directed by the Engineer-in-charge | 13947 | Sqm |
