A wall construction system including plurality of interlocking concrete blocks. The interlocking blocks include one or more stretcher blocks, corner blocks, and half blocks. The blocks include top and end shear lugs and bottom and end grooves. The bottom grooves accommodate the top shear lugs of blocks in a lower course of stacked blocks. Corner blocks provide a means for creating a corner and turning the direction of a course of blocks by 90 degrees. The interlocking features of the blocks enable dry-stacking in successive courses to construct a wall or multi-wall structure. When stacked end to end in successive rows, the top and end shear lugs of each interlocking block engage complimentary grooves in the underlying, overlying, and adjacent blocks thereby enabling the blocks to rapidly self-align vertically and lock together as they are stacked. The resulting dry-stacked structure exhibits a high lateral resistance to overpressures or transverse loads.

Building blocks include a tongue and groove on each block that allow the blocks to be placed in a way that interlocks the tongue and groove of one block with the corresponding groove and tongue, respectively, of another block facing the opposite direction. In a first embodiment, the same building block that has a decorative front face is used for both sides of the wall, resulting in a wall with opposed finished surfaces. In a second embodiment, a first plurality of blocks that have a decorative front face are used for one side of the wall, while a second plurality of blocks that have a thicker and non-decorative face are used for the other side of the wall, with the first and second plurality of blocks interlocking back-to-back via their respective tongues and grooves. Both types of blocks can be made using the same concrete form.

Building blocks include a tongue and groove on each block that allow the blocks to be placed in a way that interlocks the tongue and groove of one block with the corresponding groove and tongue, respectively, of another block facing the opposite direction. In a first embodiment, the same building block that has a decorative front face is used for both sides of the wall, resulting in a wall with opposed finished surfaces. In a second embodiment, a first plurality of blocks that have a decorative front face are used for one side of the wall, while a second plurality of blocks that have a thicker and non-decorative face are used for the other side of the wall, with the first and second plurality of blocks interlocking back-to-back via their respective tongues and grooves. Both types of blocks can be made using the same concrete form.

A wall block having a block body and a vertical plane of symmetry. The block body having a front portion, a rear portion and a neck portion. The wall block including a core extending through the neck portion and dividing the neck portion into first and second neck wall members extending rearward from the front portion to the rear portion. The wall block having a flange extending downward from the block body. The wall block having a channel positioned in the rear portion of the block body. The wall block having a first plane parallel to the plane of symmetry that passes through the first neck wall member and a second plane parallel to the plane of symmetry that passes through the second neck wall member, the first and second planes being located approximately midway between the plane of symmetry and the lateral outermost points of the wall block.

A wall comprises building blocks with opposing like outer members spaced apart by at least two risers as cross members inward from outer member ends leaving a center open with a void between the outer members and the risers. The risers extend from the bottom of the block to above the outer member tops. A continuous tongue projects upward from the top of the outer members parallel thereto along the length of the outer member and mates with grooves along the bottom of a similar outer member stackable thereon for ease of block alignment. A next stacked block is nailed to the risers projecting into its center.

A building block and a set of modular building elements is intended for construction of foundational and wall structures. The building block comprises a plurality of outer walls, a cavity, at least one inner wall, and at least two connecting elements. The outer walls are arranged in an n-gon shape surrounding the cavity and the cavity is open on both lower and upper sides. The cavity is divided by the inner wall into at least two parts. At least one part is adapted for the insertion of an insulating insert. Each connecting element is adapted for insertion into the cavity. The first connecting element is intended for insertion into the cavity of a different one of two neighbouring building blocks of a different row than the second connecting element. Each connecting element is attached to a wall of the building block and offset from that wall in a direction towards the inside of the cavity. Each connecting element comprises a wall of the connecting element protruding from a respective wall of the building block. The wall of the connecting element comprises a free end and side edges. The side edges approach each other from a place of attachment to the wall towards the free end. An insulating layer at least partially surrounds a part of the cavity adapted for the insertion of the insulating insert. The set of modular building elements comprises foundation building blocks comprising the cavity enclosed by the solid bottom and hollow building blocks.

Building blocks include a tongue and groove on each block that allow the blocks to be placed in a way that interlocks the tongue and groove of one block with the corresponding groove and tongue, respectively, of another block facing the opposite direction. In a first embodiment, the same building block that has a decorative front face is used for both sides of the wall, resulting in a wall with opposed finished surfaces. In a second embodiment, a first plurality of blocks that have a decorative front face are used for one side of the wall, while a second plurality of blocks that have a thicker and non-decorative face are used for the other side of the wall, with the first and second plurality of blocks interlocking back-to-back via their respective tongues and grooves. Both types of blocks can be made using the same concrete form.

Building blocks include a tongue and groove on each block that allow the blocks to be placed in a way that interlocks the tongue and groove of one block with the corresponding groove and tongue, respectively, of another block facing the opposite direction. In a first embodiment, the same building block that has a decorative front face is used for both sides of the wall, resulting in a wall with opposed finished surfaces. In a second embodiment, a first plurality of blocks that have a decorative front face are used for one side of the wall, while a second plurality of blocks that have a thicker and non-decorative face are used for the other side of the wall, with the first and second plurality of blocks interlocking back-to-back via their respective tongues and grooves. Both types of blocks can be made using the same concrete form.

A construction block system including primary blocks 15, primary half blocks 115, base blocks 215, base half blocks 315 and column blocks 415 that cooperate to erect vertical structures using leveling and alignment tools at the base and between rows of blocks. Alignment and leveling tool 80 permits the leveling of the first row with respect to a supporting surface S and also immobilizes tool 80. The longitudinal outer walls 20; 40; 120; 140; 220; 240; 320; 340; 420 and 440 include outwardly extending rectangular walls 25; 45; 125; 145; 225; 245; 325; 345; 425; and 445 that coact with each other leave a space between abutting blocks for cementitious substances to further bind the structure. Tool 80 rests on surface S and includes two parallel rails receivable within cooperating and aligned channels on the base and column blocks. Tools 80 includes an elongated rigid member receivable within abutting blocks horizontal surfaces and serves to align and strengthen the structure.

A construction block system including primary blocks 15, primary half blocks 115, base blocks 215, base half blocks 315 and column blocks 415 that cooperate to erect vertical structures using leveling and alignment tools at the base and between rows of blocks. Alignment and leveling tool 80 permits the leveling of the first row with respect to a supporting surface S and also immobilizes tool 80. The longitudinal outer walls 20; 40; 120; 140; 220; 240; 320; 340; 420 and 440 include outwardly extending rectangular walls 25; 45; 125; 145; 225; 245; 325; 345; 425; and 445 that coact with each other leave a space between abutting blocks for cementitious substances to further bind the structure. Tool 80 rests on surface S and includes two parallel rails receivable within cooperating and aligned channels on the base and column blocks. Tools 80 includes an elongated rigid member receivable within abutting blocks horizontal surfaces and serves to align and strengthen the structure.