Tenders Are Invited For Building Materials – The Object Of The Contract Is The Supply Of Building Materials, For The Needs Of The Act: Restoration Of Towers Π7, Π8 And Post-Towers M6-M7, M7-M8 And M8-M9 Of The Medieval Castle Of Molyvos.

Building Materials – The Object Of The Contract Is The Supply Of Building Materials, For The Needs Of The Act: Restoration Of Towers Π7, Π8 And Post-Towers M6-M7, M7-M8 And M8-M9 Of The Medieval Castle Of Molyvos.. The Object Of The Contract Is The Supply Of Building Materials, For The Needs Of The Act: Restoration Of Towers Π7, Π8 And Post-Towers M6-M7, M7-M8 And M8-M9 Of The Medieval Castle Of Molyvos. Technical Specifications Of Materials 1. Plasticizer In 20Kg Containers Liquid Admixture That Will Act As A Wide-Spectrum Superplasticizer (According To The Special Specification Sk-308 ¨Chemical Additives For Concrete And The Specification Astm C-494: Type A , F). It Will Be Certified With The Ce Mark As A Strong Water Reducer-Concrete Superfluidizer, According To En 934-2:T3.1 And T3.2 Standard, It Will Be Free Of Chlorides And With A Maximum Alkali Content Of ≤ 4.0% By Weight. 2. Natural Pozzolan Theraic Land (Powder): The Pozzolan Theraic Land Will Be Natural, Finely Ground (With A Maximum Grain Of 75Μm And With The Largest Percentage Of Grains Smaller Than 45Μm.). Its Shade Will Be Whitish-Beige And It Will Have A Pozzolanic Index Of At Least 5Mpa. The Material Shall Be Free Of Water-Soluble Alkali, While The Available Alkali Shall Not Exceed 2%. It Will Be Delivered In Well-Sealed 20Kg Plastic Bags. Or 25Kg. 3. Hydraulic Lime Nhl 3.5: Dry Mix For Mortar From Natural Hydraulic Lime With A Very Low Content Of Water-Soluble Salts. It Fully Meets The Technical Specifications Set Out In The Uni En 459-1 Regulation (> 3.5 Mpa At 28 Days) And Has The Ce Conformity Mark. The Material Will Be Delivered In Well-Sealed 25Kg Plastic Bags. 4. Pigments: In Shades Of Ocher, Raw Sienna, Black, Ultramarine Blue, Of Inorganic Origin, In Powder Form. The Material Will Be Delivered In Well-Sealed 5 Kg Plastic Bags. 5. Natural Slaked Lime Powder (Cl90): Dry Slaked Lime Powder Class Cl90 According To Εν459-1. 6. Grouting Tubes With External Diameter Φ18: The Tubes Will Be Used To Inject Hydraulic Lime Grout Into The Masonry. For This Reason, They Should Be Transparent, Flexible, Of The Alpha Rubber Type, With A Resistance >10 Bar And An Outer Diameter Of Φ18. 7. Lead Sheet (Roll 0.5X5 Meters 1.5 Mm Thick): The Lead Sheet Will Be Of Excellent Quality With A High (>95%) Lead Content, 50 Cm Wide, Packed In 5 Meter Long Rolls. 8. Black Cement In 25 Kg Bags The Cement Will Be Cem Ii 42.5 N, Of Recent Production, Portland Type, It Will Necessarily Carry The Ce Conformity Certificate, That Is, It Will Meet The Requirements Of The European Standards Elot En 2197-1-2000 And Elot 197-2-2000. It Will Be Delivered To The Site In Durable, Well-Made, Factory-Sealed Paper Bags, Which Will Not Be Torn Or Damaged From Poor Storage. The Material Content Of All The Bags Will Be The Same And Will Weigh 40Kg. 9. Conduit Beams 60X120x3 Mm (Pieces 6M Long): Conduit Beams Cold-Formed From Hot-Rolled Sheet, Quality Steel S235, According To Εν10025 10. Stainless Steel Reinforcement Bars, Diameter Φ12: According To The Technological Regulation