Recycling steel building components is key to the sustainability of a structure’s end-of-life, as it is the most economical solution. In this paper the effects of usage of recycled steel material in tall buildings aspects are investigated. Keywords—Building, recycled material, steel, structure.

ISSN 2277-5056 | © 2012 Bonfring Abstract--The use of recycled concrete aggregate is an important issue for preserving the natural resources, protecting the environment, saving of energy and for sustainable development. In this study, a unique simple mixture proportioning method was successfully adopted for developing SCC based on the absolute volume concept, starting with a volume of paste wit...

Full scale tests with crushed concrete used in sub-bases in roads show that the material has capacity to reharden, very slowly but also after prolonged periods of time. The rehardening process in crushed concrete aggregate has been analysed with a thermogravimetric method, comparing the change in chemical composition in the aggregate when set with water, compacted and hardened. It has been show...

Increasing traffic loading and volumes on roads has led to the use of polymer modified binders to improve the performance of bitumen in terms of additional strength, durability and increased resistance to rutting and fatigue cracking. Generally those modifiers currently in use are virgin polymers but the research investigate the possibility of using waste polymers instead. The aim was to find a...

Introduction: Gypsum (CaSO 4 .2H 2 O) and bassanite (CaSO 4 .0.5H 2 O) were identified on Mars by OMEGA on Mars Express and CRISM on MRO [1, 2, 3]. An-hydrite (CaSO 4) is non-active in the spectral range of OMEGA and CRISM, but may also exist [4]. Ca-sulfate was inferred from compositional correlations revealed by APXS on Mars Exploration Rovers [5, 6, 7], but no definitive identification, as w...