Provided herein are compositions, methods, and systems related to 3D printing a reactive vaterite cement composition, comprising feeding a composition comprising reactive vaterite cement through a 3D printing machine; printing a 3D printed reactive vaterite cement product; and curing the 3D printed reactive vaterite cement product by transforming reactive vaterite cement in the 3D printed reactive vaterite cement product to aragonite and/or calcite during and/or after the curing.

Provided herein are compositions, methods, and systems related to 3D printing a reactive vaterite cement composition, comprising feeding a composition comprising reactive vaterite cement through a 3D printing machine; printing a 3D printed reactive vaterite cement product; and curing the 3D printed reactive vaterite cement product by transforming reactive vaterite cement in the 3D printed reactive vaterite cement product to aragonite and/or calcite during and/or after the curing.

Provided herein are compositions, methods, and systems comprising vaterite and magnesium oxide.

Provided herein are compositions, methods, and systems comprising vaterite and magnesium oxide.

The present invention is related to materials of construction in the technical field of architecture and civil engineering, known as construction material for masonry; specifically, it is a compound made with a mixture of biodegradable cellulose matrix which is obtained from recyclable materials through an innovative method. Such compound, reaches higher resistance to compression in comparison to the known quality standards, even thought the resultant clusters, blocks or bricks, etc., are lighter due to their high cellulose content. This compound might be used, but not limited to, as raw material to produce hollow bricks, blocks, clusters and other conglomerates to build houses and buildings.

The present invention is related to materials of construction in the technical field of architecture and civil engineering, known as construction material for masonry; specifically, it is a compound made with a mixture of biodegradable cellulose matrix which is obtained from recyclable materials through an innovative method. Such compound, reaches higher resistance to compression in comparison to the known quality standards, even thought the resultant clusters, blocks or bricks, etc., are lighter due to their high cellulose content. This compound might be used, but not limited to, as raw material to produce hollow bricks, blocks, clusters and other conglomerates to build houses and buildings.

Described herein is bio-fiber-based building material wherein the thermal performance is improved by two to four-fold over the prior art Hemperete by identifying and incorporating performance-enhancing ingredients into a bio-fiber and binder mix using specifically developed mixing formulas.

Described herein is bio-fiber-based building material wherein the thermal performance is improved by two to four-fold over the prior art Hemperete by identifying and incorporating performance-enhancing ingredients into a bio-fiber and binder mix using specifically developed mixing formulas.

A method of preparing a cement hydration product nano-thin film, the method including: (1) preparing a cement hydration product; (2) preparing a water sacrificial layer film; (3) depositing the cement hydration product obtained in (1) on the surface of the water sacrificial layer film obtained in (2) to obtain a cement hydration product film; and (4) immersing the cement hydration product film in a saturated aqueous solution of calcium hydroxide to dissolve the water sacrificial layer film to obtain a nano-thin film of the cement hydration product.

A method of preparing a cement hydration product nano-thin film, the method including: (1) preparing a cement hydration product; (2) preparing a water sacrificial layer film; (3) depositing the cement hydration product obtained in (1) on the surface of the water sacrificial layer film obtained in (2) to obtain a cement hydration product film; and (4) immersing the cement hydration product film in a saturated aqueous solution of calcium hydroxide to dissolve the water sacrificial layer film to obtain a nano-thin film of the cement hydration product.