Framework Agreement for Supply of Construction Materials, by Lots Lot 1: Concrete Vaults (Large)

FRAMEWORK AGREEMENT FOR SUPPLY OF CONSTRUCTION MATERIALS, BY LOTS Lot 1: Concrete vaults (large)
Lot 1: Concrete bolts (large): Estimated maximum quantity: 1180 mc Technical characteristics: Concrete bolts [concrete used: class C 16/20 (B – 250)] have applications in the construction of walls, annexes around buildings as well as foundations or load-bearing walls of buildings. Bolts are produced from semi-dry concrete, pressed in molds with the help of vibropresses. The obtained product must be compact, with a uniform texture positively influencing its main characteristics: reduced water absorption, freeze/thaw resistance, compression resistance and other requirements established by national and European standards. The standard that specifies the materials, characteristics, conditions and test methods for masonry elements is SR EN 771-3: 2011 - ``Specifications for masonry elements, Part 3: Elements for concrete masonry with aggregates (heavy and light aggregates). The dimensions must be accurate to ensure a quick execution of the construction, reducing labor costs and execution time. Vault dimensions: Length: 400 mm Width: 150 mm Height: 200 mm Wall thickness: 25 mm- 30 mm Needed per m3: 83.33 pcs/m3 (0.012 mc/pc)