Insulated concrete wall system

In a wall system for forming insulated concrete walls comprising a plurality of spaced apart wall forms forming opposing wall surfaces defining a cavity for receiving uncured concrete, a plurality of connecting pins connecting adjacent co-planar wall forms, a plurality of vertically and horizontally spaced wall ties extending between opposing wall forms and at least one insulating panel located within said cavity between said horizontally spaced wall ties, each of said wall ties comprising:

• a pair of breakaway notches formed near each end of said wall tie, and
• an opening formed in each end of said wall tie for engaging said connecting pins,
• an improvement comprising:
• a pair of notches formed in each end of said wall tie for connecting an elongated retaining strip such that said retaining strip engages an edge of said insulating panel.

A method of forming an insulated concrete wall structure comprising the steps of:

• arranging a plurality of wall forms in a spaced apart relationship to form opposing wall surfaces defining a cavity for receiving uncured concrete;
• connecting said wall forms with a plurality of vertically and horizontally spaced wall ties, said wall ties maintaining said spaced apart relationship of said forms;
• providing a plurality of elongated retaining strips, each of said retaining strips being located between adjacent vertically spaced wall ties, thereby forming groups of horizontally spaced retaining strips;
• engaging first and second vertical edges of an insulating panel between adjacent groups of horizontally spaced retaining strips thereby forming a cavity between said insulating panel and one of said opposing wall surfaces;
• and
• pouring uncured concrete in said cavity.