US Patent 10378204 System for forming an insulated structural concrete wall

Disclosed herein is a system 100 for constructing an insulated thermal mass concrete structure comprising four or more walls 100a, 100b, 100c, 100d. The system 100 comprises interconnected frame members 30, 30′, 30″, 30′″, 30*, cross-ties 40 and corner members 33, 33′, which reduces the need for props or stays to support the walls 100a, 100b, 100c, 100d during curing of a concrete core poured between inner and outer layers, 20, 21, 22, 23, 25 attached to the frame members 30, 30′, 30″, 30′″, 30*.