Interlocking building blocks and mortarless interlocking building system

A building system comprising:

• a mortarless interlocking building block for constructing at least one of walls or partitions of a building comprising:
• a solid moulded plastic body having a front face, a rear face, opposed top and bottom faces and opposed end faces,
• the opposed front and rear faces being substantially identical and including at least two vertically extending dovetail protrusions defining a dovetail recess for matingly receiving a dovetail protrusion of another building component,
• one of the opposed end faces having at least one vertically extending recess and the other of the end faces having at least one vertically extending protrusion for mating with a recess of another building block to interconnect adjacent blocks in end-to-end relation, and
• the face having at least two tubular protrusions and the bottom face having at least two tubular recesses to lock stacked building blocks,
• and further comprising:
• at least one mortarless side panel including a finished outside surface and at least one dovetail protrusion on an opposing surface for joining the side panel to the at least one blocks, and a connector on each end of the panel for joining the side panel to other side panels, and
• at least one top cap including a finished top surface.

A method of manufacturing mortarless building blocks, comprising the steps of:

• comminuting recycled materials,
• mixing comminuted materials,
• heating the comminuted mixture,
• compressing the comminuted mixture,
• moulding the comminuted mixture, and
• cooling the comminuted mixture.