Insulated cementaceous building block system and blocks

An insulated masonry building block system for use in a mortar set masonry wall comprising:

• blocks having:
• first, second and third spaced, rectangular face shells, with said second face shell located intermediate said first and third face shells, wherein said first, second and third rectangular face shells each have a bottom edge located in a first horizontal plane and said first, second and third rectangular face shells each have a top edge located in a second horizontal plane;
• first and second cross webs connecting said first and second face shells in first and second respective planes, each of said first and second cross webs having a notch therein extending a predetermined distance from the top thereof toward the bottom thereof;
• a third cross web connecting said second and third face shells, said third cross web having a notch therein extending from the top thereof a predetermined distance toward the bottom thereof, inner surfaces of said second and third face shells angled as said inner surfaces extend from said third cross web;
• one or more insulating cores dimensioned to substantially fill space between said first and second face shells and said first and second end cross webs, said one or more insulating cores having top and bottom edges, with end protrusions extending outwardly at the top edge thereof to fit into the notches in said first and second end cross webs, said end protrusions having cutouts in bottoms thereof to accommodate mortar crumbs, said one or more insulating cores having a longitudinal notch along the entire bottom edge and a longitudinal notch along the entire top edge wherein said longitudinal notch along the entire bottom edge is dimensioned to fit into a top longitudinal notch of a neighboring one of said one or more insulating cores;
• and
• wherein space between said second face shell and said third face shell is dimensioned to receive one or more reinforcement bars and grout whereby said reinforcement bars are positioned approximate to a center of a structural foundation of said block.

A masonry block comprising:

• first, second and third spaced, rectangular face shells, with said second face shell located intermediate said first and third face shells, wherein said first, second and third rectangular face shells each have a bottom edge located in a first horizontal plane and said first, second and third rectangular face shells each have a top edge located in a second horizontal plane;
• first and second cross webs connecting said first and second face shells in first and second respective planes, each of said first and second cross webs having a notch therein extending a predetermined distance from the top thereof toward the bottom thereof;
• a third cross web connecting said second and third face shells, said third cross web having a notch therein extending from the top thereof a predetermined distance toward the bottom thereof, inner surfaces of said second and third face shells angled as said inner surfaces extend from said third cross web;
• and
• wherein space between said second face shell and said third face shell is dimensioned to receive one or more reinforcement bars and grout whereby said reinforcement bars are positioned approximate to a center of a structural foundation of said block.