Supply and collection of material for annual maintenance of various roads in Provincial Sub Division PWD BandR Branch Ballabgarh Collection of Material at Mohna Store for the Year 2022-23 REINVITED

Amount

Collection of stone chipping 11.2mm gauge from any nearest approved crusher shall consist of fairly fragments of clean, hard, tough, and durable rock of uniform quality throughout. They shall be obtained crushing rock and be free of elongated of flaky pieces, soft or disintegrated material and vegetable or other deleterious matter. They shall pre-ferably be hydrophobic type and stacked in the store in big size stack as desired by the Engineer-in-charge of work for purpose of payment, the volume of stacked will be worked out as per actual measurement and quantity will be reduced by 5%(Five percent) and the reduced quantity will be considered as the quantity for purpose of payment (MORT&H specification with latest edition) Grading Requirement a) Stone chipping 11.2 mm gauge passing 22.4 mm sieve and retained on 5.6 mm sieve

Collection of coarse aggregate 53mm to 2.8mm gauge (Vapsi) from any nearest approved crusher. The aggregate shall consist of crusher stone, crushed gravel / single or other stones. They shall be clean, strong, and durable or farley cubical shape and free from disintegrated pieces organic or other deleterious matters and adherent coating. The aggregate shall preferably by hydrophobic and low porosity. If hydrophobic aggregates are to be used the bitumen shall preferable be treated with anti stripping agents of approved quality in suitable doses. The aggregate shall satisfy the physical requirement. Set forth in table 500-7. For purpose of payment the column a stack will be worked out as per actual measurement and the quantity will be reduced by prescribed percentage and the reduced quantity will be considered as quantity supplied for purpose of payment (MOST specification No.506.2.2) The size of a stack will be 2m x1.5m x35 cm Or as desired by Engineer-In-Charge.

Supply carriage and collection of crushed or broken stone aggregate 53mm to 22.4 mm gauge (G-II) from any nearest approved quarry in accordance with the specification laid done in specification No. 3.64 of PWD specification 1990 Ist edition and conforming to grading given in the table as given below. The material shall be stacked in 2m x1.5m x35 cm sizes or as desired by the Engineer –In-charge. The actual volume of this aggregate deduction ten percent 10% ) from the volume computed by stack measurements as per clause 404. (i) Size Range =53mm to 22.4 mm Sieve Designation= 63 mm Percent By weight Passinbg the sieve=100, (ii) Sieve Designation= 53 mm Percent By weight Passinbg the sieve=95-100 (iii) Sieve Designation= 45 mm Percent By weight Passinbg the sieve=65.90 (iV) Sieve Designation= 22.4 mm Percent By weight Passinbg the sieve=0-10 (v) Sieve Designation= 11.2 mm Percent By weight Passinbg the sieve= 0-5