TABLE OF CONTENTS - The Professional Green Building Council

Theme B: Creating a livable, healthy and environmentally viable citiesENSURING THE ECOLOGICAL SAFETY OF THEENVIRONMENT BY REDUCING THE GROWTH OF THEQUANTITY OF BUILDING WASTE IN BIG CITIESYANKO ALEKSANDROVAssociate professor, doctor, architect, Civil Engineering Higher School “Liuben Karavelov”aleksandrov@vsu.bgABSTRACTDifferent types of waste in populated areas threaten in a catastrophic way the environment.The part of building waste increases quickly. In the countries of Central and EasternEurope in the last years the application of light polyurethane panels increases sharply inthe construction of one-storey and multi-storey buildings – supermarkets, fruit storehousesand refrigeratory warehouses. The author suggests to ensure the ecological safety byreducing the growth of building waste in big cities by building suitable structures for thebuilding elements, made of polyurethane foam. The second important point is the buildingof specialized depots for the separate collection of the structure materials.The third point isto develop building technologies for recycling and fabrication of secondary products.Inthis way, the dismounting of the panels of the construction will give the opportunity tocollect the structure layers separately by type of the material.Keywords: ecological safety, reduction, growth of the building waste, panels, separatecollection, structure layers, storage.1. INTRODUCTIONIn this paper is reviewed the transformation of ordinary light polyurethane panelstructures into ecologically-safe panels.It is proposed the structure of the panels to be fabricated of sectional elements, sothat in the case of wearing out of the panel or expiration of its term of use thelayers of this panel to be dismounted separately.141