Construction Blocks and Systems

A construction block configured for semi-interlocking interaction, the block comprising:

• a block body having a first face positioned at a first end and a second face positioned at a second end;
• a prism shaped male fitting protruding from the first face, the male fitting comprising
• lateral and longitudinal lower edges extending along the first face,
• lateral and longitudinal side faces having lower ends and upper ends, wherein the lower ends extend from respective lateral and longitudinal lower edges and the upper ends extend to respective lateral and longitudinal upper edges, and
• an upper base defined between the lateral and longitudinal upper edges and positioned a first vertical distance from the first face,
• wherein the lateral and longitudinal side faces are trapezoidal and a perimeter of the lateral and longitudinal lower edges is greater than a perimeter of the lateral and longitudinal upper edges;
• and
• a female fitting defined in the second face, wherein the female fitting comprises
• lateral lower edges extending along the second face and defining a lower base opening therebetween,
• lateral side faces extending between longitudinal ends of the female fitting and having lower ends extending from the lateral lower edges and upper ends extending to arcuate lateral upper edges, and
• an upper base positioned a second vertical distance from the second face and extending between the longitudinal ends and the arcuate lateral upper edges;
• wherein the first and second vertical distances are substantially the same, wherein a distance between the lower ends of the lateral side faces of the female fitting is substantially the same as a distance between the lower ends of the lateral side faces of the male fitting, and wherein a distance between the upper ends of the lateral side faces of the female fitting is greater than a distance between the upper ends of the lateral side faces of the male fitting.

A method of forming a structure, the method comprising:

• positioning a first block and a second block in semi-interlocking engagement comprising mating a prism shaped male fitting of the first block and a prism shaped female fitting of the second block;
• wherein the male fitting is formed on a first face of the first block and comprises
• lateral and longitudinal lower edges extending along the first face of the first block and defining a lower base,
• lateral and longitudinal upper edges defining an upper base,
• lateral side faces having lower ends extending from the lateral lower edges and upper ends extending to the lateral upper edges, and
• longitudinal side faces having lower ends extending from the longitudinal lower edges and upper ends extending to the lateral upper edges;
• wherein the female fitting is defined in a first block face of the second block and comprises
• lateral lower edges extending along the first face of the second block between longitudinal ends of the female fitting and defining a lower base opening therebetween,
• lateral side faces extending between the longitudinal ends of the female fitting and having lower ends extending from the lateral lower edges and upper ends extending to arcuate lateral upper edges, and
• an upper base extending between the longitudinal ends and the arcuate lateral upper edges;
• and
• wherein, when mated, the male and female fittings engage along respective upper bases and lower ends of the lateral side faces and gaps are defined between the upper ends of the lateral side faces of the male fitting and the arcuate lateral upper edges and the upper ends of the lateral side faces of the female fitting.