There is described a high-strength concrete generally having: about 100 parts by weight of cement; about 60 to about 360 parts by weight of fine aggregates; about 90 to about 230 parts by weight of mineral powder having a diameter D50 below 150 .Math.m; about 0.1 to about 25 parts by weight of superplasticizer; and about 20 to about 65 parts by weight of water, the high-strength concrete has a cement content less than about 500 kg/m.sup.3 and having a compressive strength after 28 curing days of about 55 MPa or greater.

There is described a high-strength concrete generally having: about 100 parts by weight of cement; about 60 to about 360 parts by weight of fine aggregates; about 90 to about 230 parts by weight of mineral powder having a diameter D50 below 150 .Math.m; about 0.1 to about 25 parts by weight of superplasticizer; and about 20 to about 65 parts by weight of water, the high-strength concrete has a cement content less than about 500 kg/m.sup.3 and having a compressive strength after 28 curing days of about 55 MPa or greater.

A method is provided for producing a microfiber-reinforced high-strength concrete, comprising a cement matrix with a microfiber addition. The fiber elements have a shape-memory alloy. The method has at least the following steps: training a fiber shape of the fiber elements at a temperature above a transition temperature, wherein the fiber shape allows the fiber elements to latch; cooling the trained fiber elements; plastically deforming the fiber elements from the trained fiber shape into an intermediate form by means of which the fiber elements are prevented from latching; introducing the fiber elements into the cement matrix in order to form a fresh concrete; and casting the fresh concrete and heating the fresh concrete to the transition temperature such that the fiber elements reform into the fiber shape, thereby latching the fiber elements. The invention additionally relates to a microfiber-reinforced concrete which is produced using such a method.

A method is provided for producing a microfiber-reinforced high-strength concrete, comprising a cement matrix with a microfiber addition. The fiber elements have a shape-memory alloy. The method has at least the following steps: training a fiber shape of the fiber elements at a temperature above a transition temperature, wherein the fiber shape allows the fiber elements to latch; cooling the trained fiber elements; plastically deforming the fiber elements from the trained fiber shape into an intermediate form by means of which the fiber elements are prevented from latching; introducing the fiber elements into the cement matrix in order to form a fresh concrete; and casting the fresh concrete and heating the fresh concrete to the transition temperature such that the fiber elements reform into the fiber shape, thereby latching the fiber elements. The invention additionally relates to a microfiber-reinforced concrete which is produced using such a method.

A method is provided for producing a microfiber-reinforced high-strength concrete, comprising a cement matrix with a microfiber addition. The fiber elements have a shape-memory alloy. The method has at least the following steps: training a fiber shape of the fiber elements at a temperature above a transition temperature, wherein the fiber shape allows the fiber elements to latch; cooling the trained fiber elements; plastically deforming the fiber elements from the trained fiber shape into an intermediate form by means of which the fiber elements are prevented from latching; introducing the fiber elements into the cement matrix in order to form a fresh concrete; and casting the fresh concrete and heating the fresh concrete to the transition temperature such that the fiber elements reform into the fiber shape, thereby latching the fiber elements. The invention additionally relates to a microfiber-reinforced concrete which is produced using such a method.

The present invention relates to additives and, more specifically, the use of biochar, in concrete and other cementitious materials to provide for building materials that have a lower carbon footprint than their traditional counterparts. Traditional methods for production of cement produce large amount of carbon dioxide (CO2). When coupled with the massive demand for cement building materials around the world, this means that the cement production has a significant impact on the amount of CO2 produced globally. By including biochar and other additives along with, or instead of some traditional components of cement, one may be able to provide for cementitious building materials that sequester carbon, rather than release it.

The present invention relates to additives and, more specifically, the use of biochar, in concrete and other cementitious materials to provide for building materials that have a lower carbon footprint than their traditional counterparts. Traditional methods for production of cement produce large amount of carbon dioxide (CO2). When coupled with the massive demand for cement building materials around the world, this means that the cement production has a significant impact on the amount of CO2 produced globally. By including biochar and other additives along with, or instead of some traditional components of cement, one may be able to provide for cementitious building materials that sequester carbon, rather than release it.

Disclosed in the present invention is a building with integral thermal insulation and heat shielding, in the technical field of construction engineering. The problem to be solved is to provide a building with integral thermal insulation and heat shielding, and the solution employed is as follows: a building with integral thermal insulation and heat shielding, which at least uses one of an inorganic thermal insulation structural layer and an inorganic thermal insulation layer; the inorganic thermal insulation structural layer is formed of one of, or a combination of both of, inorganic, thermally-insulating, heat-shielding and load-bearing concrete and inorganic, thermally-insulating, load-bearing building blocks; the inorganic, thermally-insulating, heat-shielding and load-bearing concrete has the following components in weight proportions: concrete composite light aggregate blending material: cement:sand:stone:ceramsite:fly ash:water:concrete admixture=(6−225):(200-800):(300-700):(500-1600):(150-650):(10-600):(80-400):(0.1-200). The present invention can be widely applied to the technical field of construction.

Disclosed in the present invention is a building with integral thermal insulation and heat shielding, in the technical field of construction engineering. The problem to be solved is to provide a building with integral thermal insulation and heat shielding, and the solution employed is as follows: a building with integral thermal insulation and heat shielding, which at least uses one of an inorganic thermal insulation structural layer and an inorganic thermal insulation layer; the inorganic thermal insulation structural layer is formed of one of, or a combination of both of, inorganic, thermally-insulating, heat-shielding and load-bearing concrete and inorganic, thermally-insulating, load-bearing building blocks; the inorganic, thermally-insulating, heat-shielding and load-bearing concrete has the following components in weight proportions: concrete composite light aggregate blending material: cement:sand:stone:ceramsite:fly ash:water:concrete admixture=(6−225):(200-800):(300-700):(500-1600):(150-650):(10-600):(80-400):(0.1-200). The present invention can be widely applied to the technical field of construction.

Disclosed in the present invention is a building with integral thermal insulation and heat shielding, in the technical field of construction engineering. The problem to be solved is to provide a building with integral thermal insulation and heat shielding, and the solution employed is as follows: a building with integral thermal insulation and heat shielding, which at least uses one of an inorganic thermal insulation structural layer and an inorganic thermal insulation layer; the inorganic thermal insulation structural layer is formed of one of, or a combination of both of, inorganic, thermally-insulating, heat-shielding and load-bearing concrete and inorganic, thermally-insulating, load-bearing building blocks; the inorganic, thermally-insulating, heat-shielding and load-bearing concrete has the following components in weight proportions: concrete composite light aggregate blending material: cement:sand:stone:ceramsite:fly ash:water:concrete admixture=(6−225):(200-800):(300-700):(500-1600):(150-650):(10-600):(80-400):(0.1-200). The present invention can be widely applied to the technical field of construction.