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.

Precast blocks with a rectangular or quadrangular prism shape contain a normal weight hydraulic concrete casing, lightweight concrete or similar material, for building walls or slabs. The steel-reinforced blocks for walls, mezzanine or rooftop slabs have the length of the wall or slab to build. An acoustic, thermal-insulating lightweight material housed in the interior simultaneous provides for blocks sufficiently lightweight to transport and install manually on-site. For walls, the blocks are tongued and grooved on the top and bottom sides and placed horizontally one on top of the other using block or similar adhesive therebetween. In the corners or T intersections, blocks are alternatively placed and form armed headframes for stability and resistance. For blocks for slabs, the tongue and groove system is on the sides, installed one beside the other, using block or similar adhesive therebetween. Transversal rods to the slab are placed to avoid temperature retraction.

Precast blocks with a rectangular or quadrangular prism shape contain a normal weight hydraulic concrete casing, lightweight concrete or similar material, for building walls or slabs. The steel-reinforced blocks for walls, mezzanine or rooftop slabs have the length of the wall or slab to build. An acoustic, thermal-insulating lightweight material housed in the interior simultaneous provides for blocks sufficiently lightweight to transport and install manually on-site. For walls, the blocks are tongued and grooved on the top and bottom sides and placed horizontally one on top of the other using block or similar adhesive therebetween. In the corners or T intersections, blocks are alternatively placed and form armed headframes for stability and resistance. For blocks for slabs, the tongue and groove system is on the sides, installed one beside the other, using block or similar adhesive therebetween. Transversal rods to the slab are placed to avoid temperature retraction.

An assembly of concrete structural elements includes a first and a second concrete lower column, and a first and a second column capitals are supported on respective upper ends of the respective first and second lower columns. At least one inverted beam is extended between the first and second column capitals. At least one lower flat surface of the inverted beam is positioned on respective edges of the first and second column capitals.

An assembly of concrete structural elements includes a first and a second concrete lower column, and a first and a second column capitals are supported on respective upper ends of the respective first and second lower columns. At least one inverted beam is extended between the first and second column capitals. At least one lower flat surface of the inverted beam is positioned on respective edges of the first and second column capitals.

The disclosure is directed to thermal and moisture insulated interlocking brick comprising natural, in-situ carved stone faade coupled to a backing layer comprised of a massive and lightweight portions, as well as methods of forming the brick and methods for cladding and using the bricks in load bearing walls and in non-load-bearing walls (light construction).

The disclosure is directed to thermal and moisture insulated interlocking brick comprising natural, in-situ carved stone faade coupled to a backing layer comprised of a massive and lightweight portions, as well as methods of forming the brick and methods for cladding and using the bricks in load bearing walls and in non-load-bearing walls (light construction).

An improved insulating block that offers great structural strength by having an interconnected block material structure with cavities filled with insulating material. The paths from the front face to the back face of the block through the block material are adapted to ensure an improved thermal insulation of the block, while providing a high load bearing capacity and allowing continuation of longitudinal reinforcement. This results in a block that can be easily manipulated and handled. Furthermore, the invention provides a method of manufacturing and a use of said blocks, and a wall or structure of said blocks.