Abstract: 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.

Abstract: A construction block system that includes a block with slanted edges that coact with contiguous blacks to define spaces or grooves for receiving cementitious substances. Cooperatively aligned channels in the upper and lower edges coact with longitudinally extending walls perpendicularly mounted to a base assembly. An adjustable mechanism provides for leveling of the base assembly to ensure proper installation of the lowermost row of blocks. Subsequently rows are aligned and leveled with a leveling tool assembly that is also partially received within the cooperative channels.

Abstract: A construction block system that includes a block with slanted edges that coact with contiguous blacks to define spaces or grooves for receiving cementitious substances. Cooperatively aligned channels in the upper and lower edges coact with longitudinally extending walls perpendicularly mounted to a base assembly. An adjustable mechanism provides for leveling of the base assembly to ensure proper installation of the lowermost row of blocks. Subsequently rows are aligned and leveled with a leveling tool assembly that is also partially received within the cooperative channels.

Abstract: A block system that includes a block with slanted walls on its edges forming longitudinal grooves to receive cement without introducing separations or spaces between abutting blocks. A base alignment tool is used to guide the blocks of the first row to ensure proper alignment. The base alignment includes a longitudinal extending sheet with spaced apart lateral walls for receiving the blocks inbetween. A row leveling tool is used to keep in alignment two blocks in different contiguous rows and separated. An elongated rigid member interconnects two bracing members attached to separated blocks in contiguous row.