Uticaj Nusprodukata Na Karakteristike Geopolimernih Malterskih Mešavina

Abstract

This paper researched physical-mechanical characteristics of geopolymer mortar mixtures based on fly ash, with addition of waste aluminosilicate materials such as red mud, biomass ash, silica dust and waste ceramic tiles. Four mixtures are made with the same 90:10 ratio of mass of fly ash and other binders, while on one mixture is made with fly ash only. The quantities of other materials required for making of geopolymer mortars such as the quantity and type of aggregate, aluminosilicate activators and water are constant. All mixtures are cured in the same laboratory conditions, at the temperature of 95°C for 24 hours, and afterwards the specimens are cured at the temperature of 22°C until the testing. The goal of this research is determining how the same water/binder and binder/agreggate ratio affects the physicalmechanical characteristics of geopolymer mortar mixtures made of various waste materials.

The influence of industrial by products on the properties of fly ash based geopolimer composites

“…Brojnim naučnim istraživanjima utvrđeno je da se industrijski nusproizvodi poput elektrofilterskog pepela, mlevenih opekarskih proizvoda, silikatne prašine, jalovine [6], konvertorske zgure [7], mlevene granulisane zgure [8], stakla katodnih cevi [9], crvenog mulja [10] [11], pepela drvne biomase, otpadnih keramičkih pločica [12][4] i dr. mogu koristiti za spravljanje građevinskih kompozita. Neka od prvih naučnih istraživanja na Balkanu, koja obuhvataju eksperimentalna ispitivanja na bescementnim malterima i betonima rađena su na Građevinskoarhitektonskom fakultetu u Nišu u Laboratoriji za ispitivanje građevinskih materijala [4].…”

Assessment of efficiency of rare earth elements recovery from lignite coal combustion ash via five-stage extraction

“…Thereby, the management of CCP and revitalizing it from a waste material into useful resource became one of the most important quests in the contemporary scientific researches. The investigations are taking place in multiple fields, since the coal ash can be utilized in cement production [9][10][11][12], building composite materials [13][14][15], ceramics [16,17], and geotechnical applications [18,19].…”