Architectural form is often used but less frequently defined. Architectural form is an inclusive term that refers primarily to a building's external outline or shape, and to a lesser degree references its internal organization and unifying principles. Shape encompasses various visual and relational properties; namely size, color and texture, position, orientation and visual inertia. Form is therefore generally and primarily understood as the shape or three dimensional massing, but also encompasses additional architectural aspects including structural configuration and form, in so far as they may organize and unify an architectural design.

Nowadays cost of highway materials increase every year. In addition, use of marginal materials results in early development of pavement distress, requiring more frequent repairs also rehabilitation, associated lane closures, traffic congestion in high volume traffic areas which increases the potential for construction zone accidents and increased levels of environmental pollution related to automobile emissions. Therefore, there is a strong desire in our country to optimize the use of materials currently used for highway pavement construction and to seek advanced materials that are cheaper and environmentally friendly. It has now been recognized that the age of limitless construction materials and the use of conventional materials in their present form is fast coming to an end, and new technologies need to be developed to continue to support the rehabilitation and reconstruction of pavements. Today, concerns about limited availability and sustainability are driving the search for new and advanced materials for highway construction. In this pap er we describe the potential for considering the use of alternative materials, also encourage the industry to accelerate the development and implementation of products still under development. The materials range from materials under development to recently commercialized materials.

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The construction challenges and opportunities demand a new kind of professional, with expertise in structural analysis, architectural design, systems engineering, information technology, and management. A decision has to be made regarding the extent to which structure should be exposed in an architectural design. For doing the right choice the architects should have a very good knowledge of structural engineering concepts and materials applications. Structural exposure should be limited to buildings where structure integrates with and clearly strengthens the expression of architectural ideas. Having a huge number of structural possibilities, designers and architects have considerable freedom of choice. In this article we try to make a short description of the potential of structure that is beams, columns, frames, struts and other structural members, to enrich architecture. We try to raise architects' perception of structure and materials as integral elements of architecture rather than applie d technologies.

Premature deterioration of concrete buildings and infrastructure due to corrosion of reinforcement is a severe challenge, both technically and economically. It has been estimated that Western Europe spends 5 billion Euros yearly for repair of corroding concrete infrastructures. Repair-work on the public transportation infrastructure are causing significant inconveniences and delays for both the industry and the general public, and are now recognized as a substantial cost for the society. Set of experiments were conducted in order to produce a description among bars of different types to assist engineers to better comprehend the relative corrosion resistance of those bars. The bars were degreased with solvent, rinsed with de-ionized water and air-dried. After that they were exposed to 5 % NaCl salt spray at 35oC for up to 3 weeks. The exposure condition followed the ASTM B117 test protocol. During the test the following steps were conducted: pH adjustment or monitoring was not performed Visual inspection of the samples was performed after 10, 60, 120, 180, 360 hours and 3 weeks of exposure. During the last three visual inspections, one bar per test condition was removed from the chamber and cleaned following ASTM G1-03 Standard Practice for Preparing, Cleaning, and Evaluating Corrosion Test Specimens methods. erage corrosion rates. Stainless steel 316LN and 2205 bars were largely free of corrosion except some minor corrosion product near to cut ends. The coating applied to the cut ends may have generated crevices which are at least partially responsible for the observed corrosion. These two types of stainless bars exhibited phenomenal low corrosion rates, approximately 0.2 % of conventional steel.