Results 71 to 80 of about 33,643 (230)

Effective Removal of Fe and Ca From Coal Fly Ash for High‐Purity and High‐Surface‐Area Zeolite X Synthesis: A Comparative Study of Acid Refluxing and Acid Roasting Methods

ChemistryOpen, Volume 15, Issue 5, May 2026.
Coal fly ash (CFA) is an abundant industrial waste rich in silica and alumina and represents a viable feedstock for zeolite synthesis; however, high levels of calcium and iron limit zeolite purity and crystallisation. This study evaluates acid refluxing and acid roasting as pre‐treatment strategies for the simultaneous removal of Ca and Fe from high ...
Emmanuel Monkgomotsi Victor Gaolefufa, Thapelo Manyapedza, Isaac N. Beas, Bakang F. Modukanele, Moses T. Kabomo   +4 more
wiley   +1 more source

Review on Potential of Geopolymer for Concrete Repair and Rehabilitation

MATEC Web of Conferences, 2016
Cracking, spalling, surface deterioration, seepage and other concrete damage of the existing infrastructure have raised concern among residents, local authorities and developers.
Warid Wazien A.Z., Abdullah Mohd Mustafa Al Bakri, Abd. Razak Rafiza, Remy Rozainy Mohd M.A.Z., Mohd Tahir Muhammad Faheem, Faris M.A., Nur Hamzah Hazamaah   +6 more
doaj   +1 more source

The Effect of Alkaline Activator Types on Strength and Microstructural Properties of Geopolymer from Co-Combustion Residuals of Bamboo and Kaolin

Indonesian Journal of Chemistry, 2018
Geopolymer as a Portland cement substitute had been synthesized from alkaline activation of co-combustion residuals of bamboo and kaolin. Types of used alkaline activators were NaOH solution, KOH solution, a mixture of NaOH solution-water glass, and a ...
Aprilina Purbasari, Tjokorde Walmiki Samadhi, Yazid Bindar   +2 more
doaj   +1 more source

Environmentally Friendly Pervious Concrete for Treating Deicer-Laden Stormwater: Phase II [PDF]

, 2018
In Phase I of this project, graphene oxide (GO)-modified pervious concrete was developed using coal fly ash as the sole binder. The primary objectives of Phase II of this project were (1) to evaluate the stormwater infiltration capacity of GO-modified ...
Shi, Xianming, Xu, Gang
core  

EFFECT OF GRINDING FINENESS OF FLY ASH ON THE PROPERTIES OF GEOPOLYMER FOAM [PDF]

, 2017
Present paper deals with the development of geopolymer foam prepared from ground F class power station fly ash. The effect of the fly ash fineness on the rheology of the geopolymer paste and the foam properties have been investigated. The raw fly ash was
Gombkötő, Imre, Mucsi, Gábor, Svéda, Mária, Szabó, Roland   +3 more
core   +2 more sources

Outline of a Washing Treatment to Improve Electric Arc Furnace Slag Environmental Behavior

steel research international, Volume 97, Issue 5, Page 2541-2558, May 2026.
This study evaluates a water‐washing treatment for electric arc furnace slag to reduce the leaching of hazardous elements (Cr, Ba, Mo, and V), enabling its reuse. The process effectively decreases leachate concentrations. Using the treated slag as a substitute aggregate in concrete reduces greenhouse gases emissions by 42.5% compared to landfilling ...
Luca Testini, Davide Mombelli, Giovanni Dotelli, Mario Grosso, Carlo Mapelli   +4 more
wiley   +1 more source

Sustainable solidification of ferrochrome slag through geopolymerisation: a look at the effect of curing time, type of activator and liquid solid ratio

Sustainable Environment Research, 2019
Ferrochrome (FeCr) slag was used as a precursor for the synthesis of a geopolymer. The effect of KOH concentration, liquid solid ratio (L/S), content of potassium metalisicate (KS) or potassium aluminate (KA), curing time on the unconfined compressive ...
Thabo Falayi
doaj   +1 more source

Enhancing the Reactivity of Dicalcium Silicate Using Aluminum and Sulfur Ions Co‐Doping

Journal of the American Ceramic Society, Volume 109, Issue 5, May 2026.
ABSTRACT Belite‐rich cements are a lower‐energy and lower‐CO2 alternative to Portland cements, but the low hydraulic activity of belite remains a major limitation. This study explores the impact of aluminum and sulfur co‐doping on the structure and hydration of synthetic dicalcium silicate (C2S).
Hyeonseok Jee, Faisal Qadri, Nishant Garg   +2 more
wiley   +1 more source

Mechanical Properties of Microstructural Components of Inorganic Materials [PDF]

, 2013
Disertační práce se zabývá studiem strukturních a mechanických vlastností anorganických materiálů. Cílem je nalezení jednotlivých fází ve zkoumaném materiálu a hlavně lokalizace (mechanicky) nejslabšího místa, jeho ovlivnění a následně výroba materiálu o
Wasserbauer, Jaromír
core  

Low carbon building: Experimental insight on the use of fly ash and glass fibre for making geopolymer concrete [PDF]

, 2017
Due to the environmental impacts resulting from the production of Ordinary Portland cement (OPC), the drive to develop alternative binders that can totally replace OPC is gaining huge consideration in the construction field.
Awoyera, P. O., Sathanandam, T., Sathishkumar, K., Vijayan, V.   +3 more
core   +2 more sources