Tenders Are Invited For Purchase Of Materials For Repairing Dirt Roads In 2026 In The Barczewo Commune, Carried Out In Two Tasks.

Task I - Purchase Of Natural Aggregate For Current Repairs Of Dirt Roads. Material That Is Used To Make Improved Subsoil And Layers Of Road Surface Structures, Fractionation 0-31.5 Mm. An Unbound Mixture Can Be Made From A Mixture Of Natural Aggregates In Specific Proportions. Category - A Characteristic Level Of Properties Of The Aggregate Or Unbound Mixture, Expressed As A Range Of Values ​​Or A Limit Value. There Is No Relationship Between The Categories Of Different Properties. Category C, Percentage Of Grains With A Crushed And Broken Surface In Coarse Aggregate (C50/30) According To The Pn-En 933-5 Standard. Explanation: C X/Yx - Minimum Content Of Completely Or Partially Crushed Or Broken Grains [%] Y - Maximum Content Of Completely Rounded Grains [%] Aggregate - Natural Granular Material Used In Construction, Which Can Be Recycled. Natural Aggregate - Aggregate From Natural Deposits Of Mineral Origin, Which Can Only Be Subjected To Mechanical Processing. Natural Aggregate Is Obtained From Mineral Raw Materials Occurring In Nature, Such As Gravel, Sand, Crushed Gravel, Aggregate From Mechanically Crushed Rocks, Gravel Oversize Or Pebbles. Stone Aggregate - Aggregate From Mineral Raw Materials Such As Crushed Gravel, Mechanically Crushed Rocks, Overgravel.• Mixture 0-31.5 This Is Crushed Aggregate Most Often Used In Road Construction And Construction. A Multifunctional Natural Material That Is A Mixture Of Sand And Gravel, Natural Light Gray In Color, With Continuous Grain Size From 0 To 31.5 Mm. It Has Rough Grains With Sharp Corners And No Signs Of Weathering Of The Aggregate. Durable Aggregate Used Mainly For The Foundation Of Internal Forest And Dirt Roads. Stabilization Mixture With The Specified Grain Size That Meets The Requirements Of Polish Standards Harmonized With European Standards: Pn - En 13242, Pn - En 13043.