Abstract A novel method is developed for reusing the waste glass fiber-reinforced polymer (GFRP) powder as a precursor in geopolymer production. Several activation parameters that affect workability and strength gain of GFRP powder-based geopolymers are investigated. The results an experimental study reveal early pastes develops slowly at ambient temperature. highest compressive 7.13 MPa age 28...

This paper investigates the effect of the solids-to-liquids (S/L) and Na2SiO3/NaOH ratios on the production of palm oil boiler ash (POBA) based geopolymer. Sodium silicate and sodium hydroxide (NaOH) solution were used as alkaline activator with a NaOH concentration of 14 M. The geopolymer samples were prepared with different S/L ratios (0.5, 1.0, 1.25, 1.5, and 1.75) and Na2SiO3/NaOH ratios (0...

This study presents a discussion on the effects of different solid-to-liquid (S/L) ratios (0.97 to 1.19) and nanoSiO2 (NS) percentages (0% to 3%) on some properties of metakaolin (MK)-based geopolymers. The setting time and compressive strength were investigated. Mercury intrusion porosimetry, fourier transform infrared spectroscopy, and scanning electron microscopy were used to determine the m...

Geopolymer concrete—an innovative material that is characterized by long chains or networks of inorganic molecules—is a potential alternative to conventional portland cement concrete for use in transportation infrastructure construction. It relies on minimally processed natural materials or industrial byproducts to significantly reduce its carbon footprint, while also being very resistant to ma...

Geopolymer concrete and mortar have evolved over the years as potential alternatives for reducing greenhouse gases associated with cement production. This current research was aimed at investigating optimum dosage concentration of sodium hydroxide required to leach out silica alumina oxides in fly ash geopolymerization take place. Blackish grey from Morupule, Botswana, synthesized by varying (N...

Surface stabilization of loose, non-cohesive, and fine soils has always been a challenging task for geotechnical engineers. These show meager mechanical behavior are very vulnerable to wind erosion. Many attempts have made combat erosion soils. attempts, including variety soil surface amendment methods, faced complications in terms financial efficacy, reduced long-term at elevated temperatures,...

Cai, B. 2015. Ceramic Materials for Administration of Potent Drugs. Digital Comprehensive Summaries of Uppsala Dissertations from the Faculty of Science and Technology 1235. 65 pp. Uppsala: Acta Universitatis Upsaliensis. ISBN 978-91-554-9188-8. This thesis aimed to investigate and document the potential of applying ceramics in two specific drug delivery applications: tamper-resistant opioid fo...