Interlocking paving brick assembly

An interlocking paving brick assembly comprising:

• a protruding brick having a block shape, the protruding brick comprising a first top portion and four first sidewalls, wherein each of the four first sidewalls is substantially perpendicular to the first top portion and comprises a first sidewall surface and a tenon structure, and each of the tenon structures comprises a side surface and a top surface, wherein the top surface of the tenon structure and its corresponding first sidewall surface define an angle a, and the side surface of the tenon structure and its corresponding first sidewall surface define an angle b;
• and
• a recessing brick having the block shape, the recessing brick comprising a second top portion and four second sidewalls, wherein each of the four second sidewalls is substantially perpendicular to the second top portion and comprises a second sidewall surface and a mortise structure, and each of the mortise structures comprises an inner side surface and an inner top surface, wherein the inner top surface of the mortise structure and its corresponding second sidewall surface define an angle c, and the inner side surface of the mortise structure and its corresponding sidewall surface define an angle d,
• wherein the tenon structures of the protruding brick and the mortise structures of the recessing brick are structurally complementary to each other, whereby the protruding brick interlocks with the recessing brick upon coupling of the tenon structures and the mortise structures to form the interlocking paving brick assembly,
• wherein the angle a and angle b of the protruding brick is equal to the angle c and angle d of the recessing brick, respectively.