Described herein are compositions comprising hemp, minerals, and water. Such compositions may be used in construction, building materials, insulation, etc. Such compositions may be sprayed, poured, cast, molded, etc.

A fastening apparatus for two or more prefabricated blocks, in which the apparatus includes a perforated plate, a first block with a step, a connector plate that sized and shaped to engage the step, and an upstanding wall that is spaced apart from the block member. The perforated plate is connected to the wall and extends away from it towards the step. The perforated plate is partially mounted on part of the connector plate so as to sandwich it between the perforated plate and the step.

A fastening apparatus for two or more prefabricated blocks, in which the apparatus includes a perforated plate, a first block with a step, a connector plate that sized and shaped to engage the step, and an upstanding wall that is spaced apart from the block member. The perforated plate is connected to the wall and extends away from it towards the step. The perforated plate is partially mounted on part of the connector plate so as to sandwich it between the perforated plate and the step.

A concrete building block for masonry block walls is formed with first, second and third spaced parallel rectangular face shells, where the second face shell is intermediate the first and third face shells. First and second vertical end cross webs connect the first and second face shells and first and second spaced intermediate vertical cross webs connect the second and third face shells. Insulating inserts include end protrusions extending outwardly at the top edge thereof to fit into notches of the cross webs and include cutouts to accommodate mortar crumbs. The inserts further include longitudinal notches along the entire bottom edges and longitudinal notches along the entire top edges wherein said longitudinal notches along a bottom edge are dimensioned to mate with longitudinal notches along a top edge of neighboring ones of the insulating inserts creating an overlap that serves to (i) insulate against temperature transfer and (ii) provide a sound barrier.

A concrete building block for masonry block walls is formed with first, second and third spaced parallel rectangular face shells, where the second face shell is intermediate the first and third face shells. First and second vertical end cross webs connect the first and second face shells and first and second spaced intermediate vertical cross webs connect the second and third face shells. Insulating inserts include end protrusions extending outwardly at the top edge thereof to fit into notches of the cross webs and include cutouts to accommodate mortar crumbs. The inserts further include longitudinal notches along the entire bottom edges and longitudinal notches along the entire top edges wherein said longitudinal notches along a bottom edge are dimensioned to mate with longitudinal notches along a top edge of neighboring ones of the insulating inserts creating an overlap that serves to (i) insulate against temperature transfer and (ii) provide a sound barrier.

The invention relates to a mineral binder suitable for use in binding aggregate in a mineral mortar or concrete mixture, said binder comprising the following components:

a) at least 40 wt % of calcined kaolinitic clay and ultrafine crushed CDW,
wherein the ratio between calcined clay and ultrafine crushed CDW is between 3:7 and 1:1 (w/w),
b) optionally 2-50 wt. % of a chemical activator; and
wherein the calcined kaolinitic clay, the ultrafine crushed CDW and the optionally present chemical activator are present in a combined amount of at least 90 wt. %, based on the total weight of the binder. The invention further relates to mineral mortar or concrete mixtures based on this mineral binder, as well as building units made from these mixtures.

The invention relates to a mineral binder suitable for use in binding aggregate in a mineral mortar or concrete mixture, said binder comprising the following components:

a) at least 40 wt % of calcined kaolinitic clay and ultrafine crushed CDW,
wherein the ratio between calcined clay and ultrafine crushed CDW is between 3:7 and 1:1 (w/w),
b) optionally 2-50 wt. % of a chemical activator; and
wherein the calcined kaolinitic clay, the ultrafine crushed CDW and the optionally present chemical activator are present in a combined amount of at least 90 wt. %, based on the total weight of the binder. The invention further relates to mineral mortar or concrete mixtures based on this mineral binder, as well as building units made from these mixtures.

Described herein are compositions comprising hemp, minerals, and water. Such compositions may be used in construction, building materials, insulation, etc. Such compositions may be sprayed, poured, cast, molded, etc.

A concrete wall section manufactured with a weight that allows the user of the concrete wall section to transport manually the concrete wall section. Combinations of concrete wall sections can be used to replace traditional frames of a structure.

A concrete wall section manufactured with a weight that allows the user of the concrete wall section to transport manually the concrete wall section. Combinations of concrete wall sections can be used to replace traditional frames of a structure.