Extruded cement based materials

An extrudable cement-based material formed from a mixture consisting essentially of:

• a cement in the range of about 0.1 to 88% by wet weight percent;
• a gypsum in the range of about 0.1 to 88% by wet weight percent;
• a secondary material in the range of about 0.1 to 50% by wet weight percent, wherein the secondary material comprising sand, silica fume, fumed silica, fly ash, slag, rock, or a combination thereof;
• a reinforcement fiber in the range of about 0.5 to 20% by wet weight percent, wherein the reinforcement fiber comprising cellulose fiber, glass fiber, polypropylene fiber, polyvinyl alcohol (PVA) fiber, Dolanit fiber, or a combination thereof;
• a rheology modifying agent in the range of about 0.5 to 10% by wet weight percent, wherein the rheology modifying agent comprising a polysaccharide, a polysaccharide derivative, a protein, a protein derivative, a synthetic organic material, a synthetic organic material derivative, or a combination thereof;
• a water in the range of 10 to 60% of a total wet material weight;
• and
• the mixture is extrudable.

A method for manufacturing an extrudable cement-based material comprising:

• mixing a cement in the range of about 0.1 to 88% by wet weight percent, a secondary material in the range of about 0.1 to 50% by wet weight percent, a reinforcement fiber in the range of about 0.5 to 20% by wet weight percent, and a rheology modifying agent in the range of about 0.5 to 10% by wet weight percent with water in the range of 10 to 60% of a total wet material weight at a same time, wherein the cement contains a gypsum in the range of about 0.1 to 90% by wet weight percent or the gypsum is added separately or a combination of both, the secondary material comprises sand, silica fume, fumed silica, fly ash, slag, rock, or a combination thereof, the reinforcement fiber comprises cellulose fiber, glass fiber, polypropylene fiber, polyvinyl alcohol (PVA) fiber, Dolanit fiber, or a combination thereof, and the rheology modifying agent comprises a polysaccharide, a polysaccharide derivative, a protein, a protein derivative, a synthetic organic material, a synthetic organic material derivative, or a combination thereof;
• extruding the mixture through a die using an extruder;
• and
• allowing the extruded mixture to set.

A method for manufacturing an extrudable cement-based material comprising:

• mixing a cement in the range of about 0.1 to 88% by wet weight percent with a water in the range of 10 to 60% of a total wet material weight, wherein the cement contains a gypsum in the range of about 0.1 to 90% by wet weight percent;
• blending the cement-gypsum-water mixture with a secondary material in the range of about 0.1 to 50% by wet weight percent and a reinforcement fiber in the range of about 0.5 to 20% by wet weight percent, wherein the secondary material comprises sand, silica fume, fumed silica, fly ash, slag, rock, or a combination thereof, and the reinforcement fiber comprises cellulose fiber, glass fiber, polypropylene fiber, polyvinyl alcohol (PVA) fiber, Dolanit fiber, or a combination thereof;
• adding a rheology modifying agent to the mixture in the range of about 0.5 to 10% by wet weight percent to the mixture, wherein the rheology modifying agent comprises a polysaccharide, a polysaccharide derivative, a protein, a protein derivative, a synthetic organic material, a synthetic organic material derivative, or a combination thereof;
• extruding the mixture through a die using an extruder;
• and
• allowing the extruded mixture to set.

A method for manufacturing an extrudable cement-based material comprising:

• mixing a cement in the range of about 0.1 to 88% by wet weight percent and a gypsum in the range of about 0.1 to 90% by wet weight percent with a water in the range of 10 to 60% of a total wet material weight;
• blending the cement-gypsum-water mixture with a secondary material in the range of about 0.1 to 50% by wet weight percent and a reinforcement fiber in the range of about 0.5 to 20% by wet weight percent, wherein the secondary material comprises sand, silica fume, fumed silica, fly ash, slag, rock, or a combination thereof, and the reinforcement fiber comprises cellulose fiber, glass fiber, polypropylene fiber, polyvinyl alcohol (PVA) fiber, Dolanit fiber, or a combination thereof;
• adding a rheology modifying agent to the mixture in the range of about 0.5 to 10% by wet weight percent to the mixture, wherein the rheology modifying agent comprises a polysaccharide, a polysaccharide derivative, a protein, a protein derivative, a synthetic organic material, a synthetic organic material derivative, or a combination thereof;
• extruding the mixture through a die using an extruder;
• and
• allowing the extruded mixture to set.