Akademik Veri Yönetim Sistemi
3rd International Conference ECOMATERIALS: Connecting Science with Grassroots, Santa-Clara, Küba, 14 - 17 Kasım 2005
Since ancient times one of the main problem of construction technology is cementing materials. Stone, adobe and brick walls were used to be constructed by earth, lime and gypsum. Lime has considerable importance in the invention of cement. Since then the main aim has been to invent a hydraulic cementitious material that is not soluble in water and has efficient strength. The main structure of cement which consists of calcium silicates and aluminates was tried to be achieved by mixing lime with some other materials like pozzolanic earth or fired clay. Pozzolans also play an important role when added to Portland cement because they increase the mechanical strength and durability of concrete structures.
On the other hand utilizing indigenous materials in construction seems to be a realistic approach in the sense of realizing an ecological and economical construction. Each ton of portland cement throws out into the environmental loading about one ton of CO2 and cement clinker which is replaced by natural pozzolans has a tremendous benefit in economical cement production. In this respect, the pozzolanic activity of the Datca Earth and Perlite have been evaluated in the present work by means of a combination of mechanical, physical and chemical methods and an attempt is made to determine their contribution to the strength of lime.