Filter cake is one of the main waste products of zinc processing industries and it contains a high amount of toxic heavy metals. In this research in order to reduce heavy metals leachability in filter cake, Portland cement, natural pozzolan, diammonium phosphate (DAP), triple superphosphate (TSP), lime, zinc oxide and ground granulated blast furnace slag (GGBFS) have been used. This research’s ...

  Abstract: In recent years, many research works have been done to investigate the possibility of utilizing a broad range of materials as raw materials in the production of geopolymer cements. The use of artificial pozzolans or aluminosilicate-type industrial waste materials such as granulated blast-furnace slag and fly ash has been reported in many research works. Natural pozzolans are also al...

The production of Portland cement is energy-intensive and polluting. As a result, the search for ecological economical alternatives has become global priority. Geopolymers are among most promising to cement. Their properties depend on nature concentration activators. This study investigates effect Na2SiO3/NaOH ratio NaOH molarity alkaline activation natural volcanic pozzolan. physico-mechanical...

ABSTRAKKabupaten Padang Pariaman memiliki sumber daya pozzolan yang belum termanfaatkan secara optimal. Pozzolan adalah bahan mengandung senyawa silika dan alumina. Untuk pemanfaatan optimal dilakukan analisis karakterisasi potensi sebagai silika. Silika bisa dimanfaatkan untuk baku utama diberbagai industri, seperti industri gelas, keramik, katalis, pertanian pengolahan limbah. mengetahui kual...

The article considers a technical solution for the introduction of pozzolan additives into cement after grinding clinker. Such are fly ash CHP and from dump. use in composition reduces its cost energy intensity production

Abstract For conservation interventions of historic masonry generally lime-based mortars such as pure air lime mortars, lime-pozzolan natural hydraulic and ternary (lime-pozzolan-cement) are used. The main reason is that their hygric mechanical (strength ductility) performance easy to adapt most existing (compatibility requirements). Although the basic appropriateness for restoration undisputed...