A platform for research: civil engineering, architecture and urbanism
A platform for research: civil engineering, architecture and urbanism
Towards poured earth construction mimicking cement solidification: demonstration of feasibility via a biosourced polymer
The feasibility of building with earth in the same and simple way as cement-based concrete has been demonstrated as an environmental-friendly alternative. Sodium alginate, a bio-sourced polymer, is used to induce a liquid–solid transition to a clay based suspension, similar to hydraulic binders. The polymer gelation occurs via calcium ions released from the binding phase through a gentle acidification of the mix. It leads to a substantial solidification of the wet material, theoretically sufficient to remove the formwork of an earth wall within 24 h without waiting for drying. Working time is adjusted using a chelator which forms complexes with calcium ions.
Towards poured earth construction mimicking cement solidification: demonstration of feasibility via a biosourced polymer
The feasibility of building with earth in the same and simple way as cement-based concrete has been demonstrated as an environmental-friendly alternative. Sodium alginate, a bio-sourced polymer, is used to induce a liquid–solid transition to a clay based suspension, similar to hydraulic binders. The polymer gelation occurs via calcium ions released from the binding phase through a gentle acidification of the mix. It leads to a substantial solidification of the wet material, theoretically sufficient to remove the formwork of an earth wall within 24 h without waiting for drying. Working time is adjusted using a chelator which forms complexes with calcium ions.
Towards poured earth construction mimicking cement solidification: demonstration of feasibility via a biosourced polymer
Pinel, A (author) / Jorand, Y / Olagnon, C / Charlot, A / Fleury, E
2017
Article (Journal)
English
Operating Procedures, Materials Treatment , Clay , Theoretical and Applied Mechanics , Earthen construction , Feasibility , Sodium alginate , Structural Mechanics , Acidification , Civil Engineering , Bio-sourced , Formwork , Polymers , Earth , Calcium ions , Mortar , Gelation , Materials Science, general , Engineering , Solidification , Alginate , Building Materials , Clay (material)
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