Amalgamated Concrete are professionals in the provision and construction of suspended slabs.

(All pictures here are of our own projects and products.)

What is a Rib and Block Suspended Slab System?


The two-part system, consisting of ‘ribs’ and ‘blocks’, forms permanent shutters for the quick and economical construction of floors in multi-story buildings.


The ‘Ribs’ or Lintels: these are reinforced, precast concrete sections that are used to span between walls. The reinforcing steel is in the form of a lattice, protruding positively from the concrete to strengthen the lintel for transport, as well as to supply shear strength in the floor. The lattice is tied-in to steel mesh and other before casting of concrete.


The ‘Blocks’ are hollow section precast units, placed to span the ribs, thus completing the shutter.


The steel lattices are tied in to steel mesh and other supporting structural components, and the floor is cast in–situ with concrete.


With this innovative Rib and Block system, Amalgamated Concrete can assist with the following economical building solutions: suspended flooring, suspended concrete slabs, concrete flooring, casting concrete slabs, construction of slabs and installing concrete slabs.


The Benefits of the Rib and Block System.


Suitable for applications in all types of buildings where suspended floors are required.


The system is ideal for residential houses in particular.


Rib and Block slabs are quicker and less costly to build than traditional shuttered concrete.


Ideal composite action between lattice lintels and

cast-in-situ concrete, optimising strength/material requirements for cost savings.


The best solution for complicated in shape slabs with skylight openings, cantilevers etc.


Simple and quick to install even with unskilled labour.


Rib and Block slabs are assembled by hand – no cranes or other machinery required. Hollow core slabs are very heavy and require cranes for assembly.



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