Tenders Are Invited For Research And Development Services And Related Consultancy Services – Fe 05.0217/2026/Fgb - “Alternative Binders For Soil Treatment In Earthworks For Road Construction”

Research And Development Services And Related Consultancy Services – Fe 05.0217/2026/Fgb - “Alternative Binders For Soil Treatment In Earthworks For Road Construction”. The Standardized Binders Lime And Cement Are Used Effectively For Soil Treatment. The Disadvantage, However, Is That Lime And Cement Cause High Co2 Emissions. The Aim Is Therefore To Explore Which Alternative Binders Can Be Used For Sustainable Soil Treatment. With The Standardized Binder Cement, The Aim Is To Achieve A Better Co2 Balance Through Clinker-Reduced Cements. The Reduction Of The Clinker Phases Also Means A Reduction Of The Strength-Forming Components. In This Respect, Suitability Tests Would Have To Be Carried Out To Determine Whether The Clinker-Reduced Cements Can Be Used For Soil Treatment. The Addition Of Ash (E.G. Paper Ash, Fly Ash) Causes A Change In The Compaction Properties And The Formation Of Strength In The Soil. In The Case Of Ashes, In Addition To The Questions About The Mode Of Action, There Are Also Questions About The Consistent And Reliable Composition (Range Of Fluctuations In The Composition) As Well As About The Environmentally Relevant Ingredients. There Are Special Binders On The Market That Are Used As Binders Or As Additives. Soil Treatment Additives Serve To Improve The Material Properties Of The Starting Material And To Reduce The Amount Of Binder That Has To Be Added Afterwards. The Aim Of The Research Is To Investigate The Effectiveness Of Selected Alternative Binders And Compare Them With The Effectiveness Of Standardized Binders. Furthermore, A Basic Test For Alternative Binders As Well As A Suitability Test For Soil Treatments With Non-Standardized Binders Should Be Developed. It Is In The Federal Governments Interest To Carry Out Sustainable Road Construction, Which Means Using Binders That Effectively Improve Or Permanently Consolidate The Soil As Well As Being Environmentally Friendly, Low-Emission, Resource-Saving And Economical.