Construction of Office building residential quarters Type IV 2 Type III 4 and Type II 7 and retaining wall at BIP Yingkiong under SIB Itanagar

TYPE - IV - 2 units Earth work in excavation in foundation and trenches in soils containing 50% or more of shingle or small size boulders upto 30 cm size, lift upto 1.50 m and stacking the excavated soil not more than 3 m clear from the edge of the excavation and returning the stacked soil in 15 cm layers when required, into plinth, sides of foundation etc consolidating each deposited layer by ramming and watering and then disposing of all surplus excavated soil as directed within a lead of 50m.

Providing and laying in foundations and plinth cement concrete 1:3:6(1 cement : 3 coarse sand : 6 graded stone aggregate 20mm nominal size) excluding the cost of centering and shuttering.

Reinforcement of RCC work including bending, binding and placing in position complete. b) Cold twisted bars.

Centring and shuttering including strutting, propping etc and removal of form work for : a) Foundation, footings, bases of columns etc. and mass concrete.

b) Walls (any thickness) including attached pilasters, buttresses, plinth and string courses etc.

c) Column, pillars, posts and struts etc.

d) Lintels, beams, girders, bressumers and cantilevers etc.

e) Suspended floors, roofs, landings shelves and their supports, balconies and chajjas (3.5 m height).

Reinforced concrete work in foundations, footings, bases of columns etc. and mass concrete excluding cost of centring, shuttering and reinforcement in : a) 1 : 1.5 : 3(1 cement : 1.5 coarse sand : 3 stone aggregate 20 mm nominal size).

Reinforcement cement concrete work in columns, pillars, piers, abutments, post and struts etc up to floor two level including finishing and plastering the exposed surface with cement mortar 1 : 3 (1 cement : 3 fine sand) of thickness not exceeding 6 mm to give a smooth and even surface but exluding cost of centring, shuttering and reinforcement. a) 1 : 1.5 :3 (1 cement : 1.5 coarse sand : 3 stone aggregate 20 mm nominal size).