A platform for research: civil engineering, architecture and urbanism
A platform for research: civil engineering, architecture and urbanism
Study of a binder based on alkaline activated limestone
Highlights New binder based on limestone activation by concentrate solution of sodium hydroxide. Mortars with optimized composition reach 20 MPa at 28 days. Reaction products are pirssonite and portlandite. SEM-EDX measurements allowed the identification of the microstructure of pirssonite. Balanced quantification of reaction products and remaining reactants was developed.
Abstract Binders based on the alkaline activation of raw materials is a subject of increasing importance for construction. This study focuses on a new non-hydraulic binder based on the alkali-activation of limestone by an aqueous solution of sodium hydroxide. An optimized mortar of about 20 MPa compressive strength, made with siliceous sand, was studied by XRD, FTIR and SEM-EDX analyses showing that crystalline pirssonite and portlandite are the reaction products responsible of the cohesive capacity of the binder. A methodology based on thermal gravimetric analysis was applied to quantify the products formed and the consumption of reagents with high reliability.
Study of a binder based on alkaline activated limestone
Highlights New binder based on limestone activation by concentrate solution of sodium hydroxide. Mortars with optimized composition reach 20 MPa at 28 days. Reaction products are pirssonite and portlandite. SEM-EDX measurements allowed the identification of the microstructure of pirssonite. Balanced quantification of reaction products and remaining reactants was developed.
Abstract Binders based on the alkaline activation of raw materials is a subject of increasing importance for construction. This study focuses on a new non-hydraulic binder based on the alkali-activation of limestone by an aqueous solution of sodium hydroxide. An optimized mortar of about 20 MPa compressive strength, made with siliceous sand, was studied by XRD, FTIR and SEM-EDX analyses showing that crystalline pirssonite and portlandite are the reaction products responsible of the cohesive capacity of the binder. A methodology based on thermal gravimetric analysis was applied to quantify the products formed and the consumption of reagents with high reliability.
Study of a binder based on alkaline activated limestone
Cousture, Annelise (author) / Renault, Norbert (author) / Gallias, Jean-Louis (author) / Ndiaye, Khadim (author)
2021-10-19
Article (Journal)
Electronic Resource
English
AS/L , Alkaline Solution to limestone ratio , DTA , Differential Thermal Analysis , EDX , Energy-Dispersive X-ray spectroscopy , FTIR , Fourier Transform Infrared spectroscopy , SEM , Scanning Electron Microscope , S/L , Sand to Limestone ratio , TGA , Thermogravimetric Analysis , W/B , water to binder ratio , XRD , X-Ray Diffraction , Alkali-activation , Limestone , Pirssonite , Portlandite , Thermal analysis
Alkaline activated binder system
| British Library Online Contents | 1997
Alkali Binder Based on Waste Glass and Limestone
| Springer Verlag | 2023
LIMESTONE-SILICONE BINDER FOR MANUFACTURING HOLLOW PRESSED PRODUCTS
| European Patent Office | 2018