Construction block units

A construction block system comprising:

• a first construction block unit comprising:
• a first construction block comprising:
• a first bottom plate having a first shape;
• a first sidewall extending perpendicularly from the first bottom plate at an outer edge of the first bottom plate to form a first container configured to receive and contain a weight;
• and
• a plurality of first fasteners coupled to a first top edge of the first sidewall opposite the first bottom plate;
• a first lid having a congruent shape to the first shape such that the first lid is fastenable to the first top edge of the first sidewall via the plurality of first fasteners to enclose the first container;
• and
• a first seal between the first construction block and the first lid configured to seal the first lid to the first construction block;
• and
• a second construction block unit comprising:
• a second construction block comprising:
• a second bottom plate having a second shape;
• a second sidewall extending perpendicularly from the second bottom plate at an outer edge of the second bottom plate to form a second container configured to receive and contain another weight;
• and
• a plurality of second fasteners coupled to a second top edge of the second sidewall opposite the second bottom plate;
• a second lid having a congruent shape to the second shape such that the second lid is fastenable to the second top edge of the second sidewall via the plurality of second fasteners to enclose the second container;
• and
• a second seal between the second construction block and the second lid configured to seal the second lid to the second construction block,
• wherein an interlocking portion of the first construction block is shaped to receive a corresponding interlocking portion of the second construction block by vertically sliding the corresponding interlocking portion into the interlocking portion, wherein the the first construction block and the second construction block are configured to interlock to prevent separation by a horizontal force.