Binding material suitable for three-dimensional printing formation
AssigneeSCG Cement Company Limited
InventorsLapyote Prasittisopin, Kittisak Pongpaisarnseree, Patiphat Jiramarootapong, Chalermwut Snguanyat
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Abstract
A cementitious composition suitable for formation by three-dimensional printing according to the present invention is aimed at developing a cementitious composition suitable for formation by three-dimensional printing which gives good stability to the extruded material coming out of a nozzle. The workpiece obtained from the three-dimensional printing formation therefore has fewer errors and greater fineness and is easier to use. The cementitious composition comprises cement, fine aggregate, powdered limestone, expanding admixture, retarding admixture, thickener and rheology modifier.
Claims12
A cementitious composition suitable for formation by three-dimensional printing comprising
- a. cement 20-30% by weight of dry binding material
- b. a fine aggregate 50-70% by weight of dry binding material
- c. powdered limestone 2-20% by weight of dry binding material
- d. expanding admixture 0.1-5% by weight of dry binding material
- e. retarding admixture 0.1-1.5% by weight of dry binding material
- f. thickener 0.1-2.0% by weight of dry binding material
- g. rheology modifier different from the thickener 0.1-4% by weight of dry binding material
- characterized in that the powdered limestone has an average fineness between 6,000-12,000 square centimeters per gram, and when the cementitious composition suitable for formation by three-dimensional printing is mixed with an appropriate amount of water, its flowability is between 60 and 70 centimeters, resulting in a mini slump between 75 and 100 millimeters.
A cementitious composition suitable for formation by three-dimensional printing comprising
- a. cement
- 20-30%
- by weight of dry binding material
- b. a fine aggregate
- 50-70%
- by weight of dry binding material
- c. powdered limestone
- 2-20%
- by weight of dry binding material
- d. expanding admixture
- 0.1-5%
- by weight of dry binding material
- e. retarding admixture
- 0.1-1.5%
- by weight of dry binding material
- f. thickener
- 0.1-2.0%
- by weight of dry binding material
- g. rheology modifier
- 0.1-4%
- by weight of dry binding material
- different from the
- thickener
- characterized in that the powdered limestone has an average fineness between 6,000 to 12,000 square centimeters per gram, and when the cementitious composition suitable for formation by three-dimensional printing is mixed with an appropriate amount of water, its flowability is between 60 and 64 centimeters, resulting in a mini slump between 75 and 105 millimeters
- wherein, when the composition is mixed with water, the composition comprises a weight ratio of cementitious composition to water between 1:0.018-1:0.060.
Dependencies are inferred from the claim text.