1 EFW: Earth filling work with specified soil in any type of embankment including cutting, carrying, filling by throwing earth in layers not more than 150mm in each layer in proper alignment, grade, camber and side slope in all types of soil except rocky, gravelly and slushy including benching not more than 30cm in vertical and 60cm in horizontal steps along the sides while widening any embankment, etc. All complete as per the direction of E-I-C. Earth is to be borrowed from the road side for all lead.(Payment will be made on compacted volume)Upto 2.50m lift from the toe of embankment. 13.567 2 Sand filling on the prepared foundation bed with sand of specific FM in layer not more than 150mm thick including necessary carriage, leveling, watering and ramming to achieve minimum dry density (MDD) of 95% STD compaction with optimum moisture content (OMC) by remaining each layer up to finished level as per direction of the E-I-C. Sand of minimum FM 0.8 0.863 3 Single layer brick flat soling with 1st class or picked kiln burnt bricks in foundation, filling the interstices tightly with sand of minimum FM 0.50, watering, leveling, dressing, etc. all complete as per instruction of the E-I-C. 9.166 4 PCC-17:Plain cement concrete work in foundation with minimum compressive strength of 17 MPa at 28 days(suggested mix proportion 1:2:4 & maximum w/c ratio 0.45) on standard cylinder as per standard practice of Code AASTHTO/ASTM/ and cement conforming to BDS EN 197-1 : 2003 CEM-II/A-M 42.5 N, send of minimum FM 1.8 and 20mm down well graded 1st class/ plucked brick chips (LLA value not exceeding 40) conforming to AASTM C 33 including breaking bricks into chips,shuttering,mixing by concrete mixer machine,casting,laying compacting and curing for the requisite period etc. All complete as per direction of the E-I-C. Additional quantity of cement to be attain the strength at the contractor’s own cost. 1.495 5 Brick work with 1st class brick in specified cement mortar in foundation with send of minimum FM 1.20 and cement conforming to BDS EN 197-1:2003 CEM- II/A-M 42.5N, filling the interstices tightly with mortar, racing out joints, cleaning and soaking bricks at least for 24 hours before use, washing of design, specification & direction of the E-I-C. Cement mortar (1:4) 7.475 6 RCC-20SCCM: Reinforced cement concrete work with minimum cement concrete relates to nominal mix ratio 1:2:4 and maximum water cement ratio 0.45 having minimum required average strength, f cr=28.5 Mpa and satisfying a compressive strength, f cr=20 Mpa at 28 days on standard cylinders as per standard practice of code AASHTO/ASTM and cement conforming to BDS EN 197-1: 2003 CEM-I 52.5N/ASTM C150 type-1, high range water reducing admixture of complying type A or F under ASTM C 494 (Doses of admixture to be fixed by the mix design), send of minimum FM 2.2 and 20mm down well graded crushed stone chips broken from boulders (preferably stone chips from Madhyapara, Dinajpur, LAA value not exceeding 30) conforming to ASTM C33 including screening chips through proper sieves, cleaning, placing shutter in position, making shutter water-tight properly, placing reinforcement in position, mixing and standard mixture machine with hoper, fed by standard measuring boxes, maintaining allowable slump of 75mm to 100mm, casting in forms compacting by mechanical vibrator machine, curing for 28 days, removing centering-shuttering after approved specified time period, other incidental charges, etc. all complete in all respect as per direction of the E-I-C. the cost of reinforcement and it’s fabrication, welding, coupling, placing binding etc. is not included in this unit rate. Additional quantity of cement to be added if required to attain the specified strength at the contractor’s own cost. Note: Using Concrete Mixer For well curb, well caps, pile caps, abutment base of bridges and bottom slab of box culverts. 3.302 7 supplying and fabrication of Ribbed or deformed bar reinforcement conforming to BDS ISO 6935-2:2006 (or standard subsequently released from BSIT) for all types of RCC work including straightening, removing ruts, cleaning, cutting, hooking, bending, lapping and/or welding wherever required as directed, placing in position, tieing with 22BWG black annealed binding wire double fold, cost of binding wire and anchoring to the adjoining members wherever necessary, supplying and placing with proper cover blocks (1:1),supports, chairs , spacers, splices or laps ets. Including cost of all materials, cost of labour, cost of equipment & machlnery , loading and unloading , transportation , all other lncidental charges and work at all leads and lifts etc.To complete the work as per design, drawing, specifications and direction of the E-I-C. Reinforcement shall be measured only in lengths of bars as actually placed in position on standard weight i.e.7850kg/m3(BNBC Table 6.2.1) basis. No separate payment shall be allowed for c hairs of any shape & profile, lap/ splice, wastage, binding wire, concrete c over blocks etc. As the cost of these is including in the unit rate. Note: Tests for reinforcing bars shall be conducted at LGED/BUET/CUTE/KUET/RUET. RB 300:Ribber or deformed bar produce and marked as per BDS ISO 6935-2:2006 with minimum yield strength, fy (ReH)= 300 MPa, but the actual yield strength ,fu (Re) to actual tensile yield strength (fy) shall b e at least 1.25 and minimum total elongation after fracture (A5.65) & minimum total elongation at maximum force (Agt) is 16% and 2.5%respectively. 1.526 8 Earthwork in excavation of foundation trenches , including layout, by excavation earth to the lines, grades and elevation as shown in the drawing providing center lines, local bench mark pillars, fixing bamboo spikes and marking layout with chalk powder filling baskets, carrying and disposing of all excavated materials at a safe distance designated by the E-I-C. in all types of soil except rocky, gravelly and slushy or organic soil, leveling, ramming, dressing and preparing the base, etc. all complete for an initial excavation depth of 2m and an initial lead not exceeding 20m, including arranging all necessary tools and equipment at work site, etc. complete as per the direction of E-I-C 22.189 9 Minimum 12mm thick cement plaster (1:4) with portland Composite cement (CEM II/AM,42.5N) and best quality sand (minimum FM 1.2) to dado, planth wall up to 150mm below ground level, water tank or any where directed with neat cement finishing in/c washing of send, raking out joint and picking up cement mortar in/c finishing the edges and corners and curing for requisite period etc. all complete as per direction of the E-I-C. 6.148