Dry cementitious material mixture for 3D-printing
AssigneeHolcim Technology Ltd
InventorsBenito Carrion Gomez, Hélène Lombois-Burger, Qing Zhang, Sylvain Duchand, Abdelaziz Labyad
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Abstract
A dry cementitious material mixture for 3D-printing, includes a hydraulic cement, at least one viscosity enhancing admixture, at least one accelerator and aggregates, wherein the at least one viscosity enhancing admixture is present in an amount of 0.05-1.5% by weight based on the hydraulic cement and the at least one accelerator is present in an amount of 0.5-6.0% by weight based on the hydraulic cement.
Claims19
A dry cementitious material mixture for 3D-printing, comprising a hydraulic cement, at least one viscosity enhancing admixture, at least one accelerator and aggregates, wherein the at least one viscosity enhancing admixture is present in an amount of 0.05-1.5% by weight based on the hydraulic cement and the at least one accelerator is present in an amount of 0.5-6.0% by weight based on the hydraulic cement, wherein the hydraulic cement comprises Portland cement and an aluminate cement, wherein said aluminate cement is present in an amount of <1.5% by weight based on the total amount of hydraulic cement and wherein upon being added with water, to form a flowable construction material, the flowable construction material has a yield strength of 0.25-8 kPa when being placed.
Dependencies are inferred from the claim text.