Advanced composite construction system

Interlocking connections in the Advanced Composite Construction System (ACCS) (courtesy of Strongwell). 

Other military applications continue to account for a large fraction of all types of advanced composites produced today. Such materials are used, for example, in the construction of missile systems, their ammunition components, and their launch systems. Missile-related components that use composites include launcher tubes, armor-piercing penetrators, and stanchion and torpedo tubes used in submarines. 

Composite rehabilitation systems (CRS), i.e., structural hybrid systems involving advanced polymer composite (APC) materials (generally referred to as fibre-reinforced polymer, FRP), structural adhesives (SA) and conventional construction materials (CCM) (e.g., timber, concrete, masomy, steel, iron), constitute one such technology. 

The next era of supramolecular chemistry will undoubtedly be one of adaptability and evolution. As the complexity and the sophistication of these systems increases the need for viable alternatives to covalent synthesis is essential. One such is offered by the exploitation of weak intermolecular forces for the construction of arrays and aggregates with defined composition, shape and functionahty. Hydrogen bonding provides and ideal motif for such systems, and together with the well-established reactivity patterns and shape adaptability of porphyrins, the way is clear to the development of new systems with increasing chemical diversity and controlled dynamics. It is clear that the most rapid advances will be made through the use of dynamic combinatorial libraries, which allows for the chemical evolution of mixtures and amplification of specific components, with built-in error checking and control. 

The second problem is the formulation of general methods of description of the evolution of chemical system composition from the indignant starting state into a final equilibrium one and also the construction of formalized kinetic models as mathematical manners of separated states of a chemical process. This problem can be considered as phenomenological to the first problem, taking into account that the constants of a kinetic equation are assigned in advance as a function of an external parameter, the nature of composites and an intermediate substance. 

As discussed in the previous chapter, advanced FRP composites have a key role to play in the repair and construction of bridge stmctures. They have been used in the rehabilitation of both ageing concrete and metallic bridge structures. The unique in-service and mechanical properties, viz. durability, high specific stiffness and strength, etc., of advanced FRP composites for the civil infrastructure suggest their suitability for integration in hybrid structural systems as well as the development of all advanced FRP composite structures. 

---