Use of perlite as a pozzolanic addition in producing blended cements

Erdem, Tahir Kemal
Akgül, Çağla
Tokyay, Mustafa
Erdogan, Turhan Y
There are similar to 6700 million tons of perlite reserves in the world and two thirds of this amount takes place in Turkey. Although perlite possesses pozzolanic properties, it has not been so far used in producing blended cements. This study focuses on the use of natural perlites in blended cement production. For this purpose, after examining the suitability of the perlites as pozzolans and their case of grindability, 16 types of blended cements having 320 m(2)/kg or 370 m(2)/kg Blaine fineness were produced by using 20% or 30% perlite additions. Production of the blended cements were accomplished either by intergrinding or separate grinding. The performance of the cements was evaluated by conducting the following tests: particle size distribution by laser diffraction, normal consistency, setting time, soundness and compressive strength. The results showed that perlites possess sufficient pozzolanic characteristics to be used in production of blended cement.


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The largest boron reserves in the world are located in Turkey. The production of boron compounds and use of generated boron derivative waste during this production are extremely important for both economically and environmentally. This study evaluates boron derivative waste and investigates doping effects of heat-treated boron derivative wastes on mineralogical, microstructural, and mechanical properties of cement mortar. The waste, portland cement, and wastes heat-treated at temperatures of 400-900 degrees...
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Citation Formats
T. K. Erdem, Ç. Akgül, M. Tokyay, and T. Y. Erdogan, “Use of perlite as a pozzolanic addition in producing blended cements,” CEMENT & CONCRETE COMPOSITES, pp. 13–21, 2007, Accessed: 00, 2020. [Online]. Available: