نتایج جستجو برای: geopolymerization
تعداد نتایج: 118 فیلتر نتایج به سال:
The use of fluid catalytic cracking (FCC) by-products as aluminosilicate precursors in geopolymer binders has attracted significant interest from researchers recent years owing to their high alumina and silica contents. Introduced this study is the concrete comprising FCC residue combined with fly ash requisite source aluminosilicate. Fly was replaced various contents ranging 0–100% by mass bin...
This paper evaluates a type of geopolymer concrete that uses hemp fibres as natural aggregate due to the various advantages offered by these woody materials. These include ease cultivation and processing their use in essential structure concretes used for green construction purposes. The sampling study was prepared using an environmentally friendly inorganic binder, based on geopolymerization r...
The objective of this study was to investigate the effect curing temperature on mechanical properties sanitary ware porcelain powder-based geopolymer paste and mortar under various temperatures. setting time, porosity, water absorption, compressive strength specimens mixed with alkaline concentrations 8M, 10M, 12M, 14M were compared. All cube (50×50×50 mm) placed into drying ovens for 24 hours ...
In this research, a phase formation in CaO–SiO2–Al2O3–H2O binding system under hydrothermal conditions was studied. The novelty of article lies the quantitative full-profile X-ray diffraction (XRD) analysis used to determine kinetics mineral binder “lime–granite modifier (GMM)”. polymineral is described detail, as well relationships between composition newly formed phases and mixture ratios wer...
The potential of applying geopolymerization to a wide range solid industrial waste and by-products is great interest. In this research, the physical mechanical properties fly ash (FA)-based geopolymer concrete (GC), compared those cement (CC), were studied. Three GCs with different content FA three appropriate CCs designed, prepared, tested evaluated. results requirements Standards EN 206-1 199...
The combustion of fossil fuels results in creating a lot solid wastes such as fly ash and slag. However, these environmentally unfriendly materials can be used raw material for alkali activation – geopolymerization. Although have been successfully industrial production several decades, its use does not achieve the level potential. Today, to sustainable construction industry, alternative cement ...
The use of fly ash as a precursor for geopolymer has been investigated during the last decades various applications. aim this research was to study effect nitrate on formation and evolution ash-based geopolymers, in order assess their applicability waste immobilization matrices. These may be interest treat streams from agricultural runoff industries including nuclear industry. Fly alkali-activa...
This work deals with geopolymers based on local Jordanian resources, namely, kaolin and zeoltitic (phillipsite) tuff. The geopolymers were prepared from these two materials by a reaction with an alkali solution at 80oC. The research group of the present work has demonstrated in previous work that addition of zeolitic tuff to kaolin based-geopolymers increases the adsorption capacity toward Cu(I...
Municipal solid waste incineration (MSWI) fly ash is classified as hazardous and needs to be disposed of according strict regulations. By disposal, valuable resources in the MSWI lost, other solutions are sought for. The effect electrodialytic remediation (ED) a pre-treatment for removing heavy metals from before using treated geopolymerization with coal was explored. ED increased Si reactivity...
In this study, a combination of geopolymers including Rafsanjan Natural Pozzolan (RNP), Cement Kiln Dust (CKD), and an activator such as Calcium Carbide Residue (CCR) or NaOH was used to stabilize improve the poorly graded sandy soil. Factors type, concentration, CKD RNP content were studied. Chemical compounds soil abovementioned materials investigated using X-ray Diffraction (XRD) Fluorescenc...
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