An interlocking web for use in insulated concrete form construction configured to engage with a like interlocking web to prevent horizontal and vertical relative movement between webs, the web including a pair of pillars adapted to be embedded within foam insulation panels, each pillar having a male connector at a first end and a female connector at a second end, the male and female connectors having complementary shapes to engage with respective female and male connectors of like vertically-aligned interlocking webs and a pair of bridges interconnecting the pillars.