Results 51 to 60 of about 16,766 (210)

Chemical and Physical Characterization of Fly Ash as Geopolymer Material

MATEC Web of Conferences, 2017
Research on finding suitable cement substitute material becomes massive due to environmental effect. Geopolymer as inorganic material is potential to be the smart solution to overcome global warming issue.
Risdanareni Puput, Puspitasari Poppy, Januarti Jaya Ekaputri   +2 more
doaj   +1 more source

Compressive Strength and Water Flux Performance of Type C and Type F Fly Ash-Based Geopolymer Membrane [PDF]

Archives of Metallurgy and Materials
This study explains the influence of fly ash type C and type F on the properties of membrane geopolymer. The geopolymer paste was synthesized through a mix of fly ash (FA) and an alkaline activator (AA) (2:1 mass ratio of FA:AA). The alkali activator was
N. Nurlina, M.N. Alief, Z. Rahmawati, S.D. Nurherdiana, T.E. Susanto, H. Fansuri   +5 more
doaj   +1 more source

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

steel research international, EarlyView.
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 High‐Performance Green Concrete Utilizing Untreated Spent Foundry Sand: Microstructural Analysis, Mechanical Properties, and Durability

Engineering Reports, Volume 8, Issue 4, April 2026.
This study demonstrates the successful incorporation of Spent Foundry Sand (SFS) as a sustainable alternative to natural sand in concrete, enhancing compressive and tensile strengths by up to 26% and 12.87%, respectively, while reducing chloride permeability.
Yiren Wang, Lian Ju, Yibo Wang, Wei Liu
wiley   +1 more source

Effect of white soil substitution on fly ash based mortar geopolymers with sodium hydroxide activator

Media Komunikasi Teknik Sipil, 2020
The presence of white soil in a geopolymer mortar affects the physical and mechanical properties of the mortar itself, especially in compressive strength, density and modulus of elasticity produced. Geopolymer mortar composed of fly ash, sand, water, and
Yulita Arni Priastiwi, Arif Hidayat, Dwi Daryanto, Zidny Salamsyah Badru   +3 more
doaj   +1 more source

Pengaruh Kadar Air Dan Superplasticizer Pada Kekuatan Dan Kelecakan Beton Geopolimer Memadat Sendiri Berbasis Abu Terbang [PDF]

, 2016
Eenvironmental issues that caused by the production of portland cement and the development needs of the concrete casting technology, where in the last few decade scientists has started to do research and development of fly ash based - self compacting ...
Gumalang, S. (Stevanny), Sumajouw, M. D. (M), Wallah, S. E. (S)   +2 more
core  

Influence of size reduction of fly ash particles by grinding on the chemical properties of geopolymers [PDF]

, 2018
Chemical properties of geopolymers were evaluated from the reduction of fly ash particle size by grinding. X-ray diffraction determined that at early curing ages new crystalline phases appear in the matrix of the geopolymer and they remain for 28 days ...
Arredondo Rea, Susana Paola, Corral Higuera, Ramón, Cruz Enríquez, Adriana, Gómez Soberón, José Manuel Vicente, Medina Serna, Teresita de Jesús, Pellegrini Cervantes, Manuel de Jesús, Rosas Casarez,, Carlos Antonio   +6 more
core   +3 more sources

An Ensemble Machine Learning Method for Alkali‐Activated Concrete Mix Ratio Analysis and Optimizing Experimental Results

Engineering Reports, Volume 8, Issue 3, March 2026.
In this study, we discovered a combined learning algorithm of MLP–RF for predicting the composition of concrete and achieved favorable results in the inversion experiment. ABSTRACT In the field of civil engineering, the analysis of the composition of alkali‐sprayed concrete is of great significance for material research. However, there are currently no
Chengyuan Dai, Weiyu Li, Jiamin Lu, Yuelong Luo, Qizhou Liu, Lianxin Chen   +5 more
wiley   +1 more source

Durabilitas Mortar Geopolimer di Air Gambut [PDF]

, 2015
This research studies the durability of OPC mortar, geopolymer mortar based fly ash and geopolymer mortar based palm oil fuel ash in acidic environment like peat water and netral environment like aquadest.
Olivia, M. (Monita), Sitompul, I. R. (Iskandar), Wulandari, C. (Chrisfela)   +2 more
core  

Circular Alkali‐Activated Cements Based on EAF Slags and Biomass Bottom Ash Using Rice Husk Ash–Derived Sodium Silicate

Journal of the American Ceramic Society, Volume 109, Issue 3, March 2026.
ABSTRACT This study investigates sodium silicate (SS) solutions derived from rice husk ash (RHA) dissolved in 8 M NaOH as sustainable activators for alkali‐activated cements (AACs), compared with commercial SS. AACs were produced using a 50:50 blend of electric arc furnace slag (EAFS) and biomass bottom ash (BA). The effects of NaOH/RHA ratio (6.6–2.8)
A. Muñoz‐Castillo, S. Bueno‐Rodríguez, D. Eliche‐Quesada   +2 more
wiley   +1 more source