Composition with a base of hydraulic and/or pozzolanic material
A mix including at least one hydraulic and/or pozzolanic material and at least one water-soluble cationic polymer, the cationic polymer having a density of cationic charges greater than 0.5 meq/g and an intrinsic viscosity less than 1 dl/g, and the hydraulic and/or pozzolanic material not being clinker, nor limestone, nor gypsum, nor calcium sulphate, nor anhydrous calcium sulphate, nor hemi hydrated calcium sulphate, nor plaster, nor lime.
1. A mix comprising at least one pozzolanic material and at least one water-soluble cationic polymer, said cationic polymer having a density of cationic charges greater than 0.5 meq/g and an intrinsic viscosity less than 1 dl/g.
2. The mix according to claim 1 , comprising at least one superplasticizer.
3. The mix according to claim 1 , comprising an accelerator.
4. The mix according to claim 1 , wherein the pozzolanic material is selected from natural pozzolans, calcined pozzolans, calcined clays, fly ash, calcined shale, slags, silica fume or mixtures thereof.
5. The mix according to claim 4 , wherein the pozzolans are selected from pumice, tuff, scoria or mixtures thereof.
6. The mix according to claim 4 , wherein the calcined clays are selected from thermally activated kaolinite, smectites, illite, muscovite, chlorites, or mixtures thereof.
7. A hydraulic composition comprising at least one mix according to claim 1 and at least one hydraulic binder.
8. The hydraulic composition according to claim 7 , wherein said hydraulic binder is a Portland cement.
9. The hydraulic composition according to claim 7 , comprising aggregates.
10. The hydraulic composition according to claim 7 , comprising an accelerator.
11. A process for the treatment of a pozzolanic material comprising:
preparing a cationic composition comprising water and at least one water-soluble cationic polymer having a density of cationic charges greater than 0.5 meq/g and an intrinsic viscosity less than 1 dl/g by way of active matter;
mixing said cationic composition with said at least one pozzolanic material.
12. The process according to claim 11 , wherein said cationic composition further comprises at least one superplasticizer.
13. A method comprising producing a hydraulic composition using a mix according to claim 1 .
14. A method comprising producing a hardened object using a hydraulic composition according to claim 7 .
15. A hardened object obtained from a hydraulic composition according to claim 7 .