Tenders Are Invited For Construction Work For Military Buildings And Installations – Bullet Trap Wall With Thermoplastic Retention Layer

Construction Work For Military Buildings And Installations – Bullet Trap Wall With Thermoplastic Retention Layer. New Construction Of An Indoor Shooting Range In The Pioneer Barracks Gera-Hain Property, Zum Hain 1 In 07554 Gera. Preparation Of A Verifiable Work Plan For The Entire Perimeter Of The Bullet Trap Wall And For A Bullet Trap Pattern. Production Of A Sample Bullet Trap Box 1.35 X 1.35 X 1.0 M And Transport To The Ballistic Test. Manufacture, Delivery And Assembly Of A Bullet Trap Wall With A Thermoplastic Retention Layer, 19.0 M Wide X 5.2 M High. Construction Depth At The Base 1.05 M, At The Head 0.95 M. Rear Wall And Intermediate And Side Walls Made Of Highly Wear-Resistant Special Steel For The Production Of Bullet-Resistant Components (500 Hbw Nominal Hardness), On The Front A 100 Mm Thick Thermoplastic Retention Layer Consisting Of Individual Blocks 0.45 M X 0.45 M X 0.10 M Is To Be Built Up, Cavity Between The Front And Back Wall Is Filled With Copolymer Granules, 84 Pieces Of Bulletproof Inspection Flaps For Maintenance/Removal Of The Granules And The Bullet Residues As Sliding Openings 410 X 430 Mm In The Back Of The Bullet Trap Wall, Of Which 42 Inspection Flaps With Attached Suction Nozzle Dn 150. Requirements: What Is Required Is A Bullet Trap Wall That Is Suitable For Firing From Small Arms With A Bullet Energy E0 (Muzzle Energy) Of Up To 4,000 Joule Is Suitable. It Must Be A So-Called Soft System In Which The Bullets Are Absorbed By Soft Braking Media. The Thermoplastic Retention Layer And The Granules Must Have The Following Physical/Chemical Properties In Order To Achieve An Optimal Braking Effect For The Projectiles: - Both Materials Must Have The Classification Of Building Material Class B2 (Din 4102) - Melting Point Of The Thermoplastic Between 65 And 90 Degrees Celsius - Hardness Of The Material Of The 100 Mm Thick Thermoplastic Retention Layer 71 To 77 Shore A - Hardness Of The Copolymer Granules Filling The Chambers 87 To 93 Shore A When Producing The Vertical Stands And The Rear Wall Of The Bullet Trap, It Is Essential To Note: The Processing Technology Selected During Production May Only Slightly Change The Quality Of The Special Steel For The Production Of Bullet-Resistant Components In The Processing Area: Minimum Steel Quality In The Edge Area Of The Processed Components Must Still Be At Least 400 Hbw (Initial Value Before Processing At Least 475 Hbw), These Changes In The Steel Quality Are Only In The Immediate Processing Area (Max. 1 Cm Next To The Processing Edge) Permitted.