Hybrid cementitious buildings for a multi-level habitat

Abstract

Cementitious construction system that employs beams with utility voids, special screws coordinated with AAC anchoring inserts, and interlocking fastening systems that make possible a precast building requiring no welding and having all the structural advantages of a poured in place structure but which is constructed in less time and cost than existing precast systems.

1 . A cementitious building of at least one story height comprising precast components assembled on site,
 said components being fastened together by a permanent high strength bonding agent and steel fasteners in a precast system that does not require welding, and   said bonding agent disposed in precast cavities to combine with exposed steel fasteners replacing the need for forms, poured in place concrete and welding.   
     
     
         2 . The building according to  claim 1  wherein said cavities are created by inflatable-type molds that are deflated and removed after concrete cures sufficiently. 
     
     
         3 . The building according to  claim 1  wherein said cavities are created by inserts that are removed after the concrete has cured sufficiently and the resultant void receives a complementary precast component and the two components are made into one monolithic, steel reinforced unit. 
     
     
         4 . A cementitious building support structure comprising a column, sleeves formed in said column, said sleeves being funnel-shaped to receive a reinforcing rod, and said reinforcing rod extending from said column. 
     
     
         5 . The building according to  claim 4  wherein grout is poured into said sleeve. 
     
     
         6 . The building according to  claim 4  wherein an insert is formed in said column. 
     
     
         7 . The building according to  claim 4  wherein a knob is concentrically disposed on said reinforcing rod and receivable in the funnel-shaped portion of said sleeve. 
     
     
         8 . A cementitious building floor system comprising a cementitious beam, metal decking partially overlying said beam, multiple holes formed in said decking, fasteners interconnecting said beam and said decking, and lightweight concrete overlying said decking. 
     
     
         9 . The floor system according to  claim 8  wherein said fasteners extend above said decking. 
     
     
         10 . The floor system according to  claim 9  wherein multiple holes are formed in said beam and said holes in said beam are in alignment with corresponding holes in said decking. 
     
     
         11 . The building according to  claim 1  wherein said components comprise a combination of precast high density concrete and lightweight insulative aerated concrete.