Results 11 to 20 of about 8,572 (229)

Alternative concrete based on alkali-activated slag

open access: yesMateriales de Construccion, 2008
This article reports the results of related to on the performance of concrete made with waterglass (Na2SiO3•nH2O + NaOH)-activated Colombian granulated blast furnace slag.
E. Rodríguez   +3 more
doaj   +3 more sources

Efflorescence and leaching behaviour of fly ash-slag based alkali-activated materials [PDF]

open access: yes, 2021
Over the past few decades, alkali-activated materials (AAMs) have shown the potential as alternative construction materials because of their high mechanical performance, low CO2 emissions, and the utilisation of industrial wastes as raw material such as ...
Srinivasamurthy, Lakshmikanth
core   +1 more source

The influence of different parameters on the hydration process of binders based on alkali activated slag [PDF]

open access: yesJournal of the Serbian Chemical Society, 2005
The influence of certain types of activators (water glass Na2O·nSiO2 and sodium-metasilicate Na2SiO3·5H2O) on the hydration process of alkali activated slag was investigated in this study.
DARKO KRIZAN   +2 more
doaj   +3 more sources

Influence of slag composition on the hydration of alkali-activated slags [PDF]

open access: yesJournal of Sustainable Cement-Based Materials, 2014
The hydration of different blast-furnace slags with sodium metasilicate or NaOH as activator was investigated. Sodium metasilicate shows poor strength after 1 day, but high strength after 7 days and beyond, whereas NaOH activation leads to high strength after 1 day , but only moderate strength development at later ages.
Frank Winnefeld   +5 more
openaire   +1 more source

Alkali-activated slag concrete with paper industry waste [PDF]

open access: yesWaste Management & Research: The Journal for a Sustainable Circular Economy, 2021
Pulp and paper manufacturing and recycling industries are a resource-intensive sector, generating 25–40% of the annual municipal solid waste worldwide. Waste includes abundant volumes of paper sludge, as well as the product of its incineration, namely paper sludge ash.
Maria Mavroulidou, Shamil Shah
openaire   +2 more sources

Alkali Activation of Metallurgical Slags: Reactivity, Chemical Behavior, and Environmental Assessment [PDF]

open access: yesMaterials, 2021
Alkali-activated materials (AAMs) represent a promising alternative to conventional building materials and ceramics. Being produced in large amounts as aluminosilicate-rich secondary products, such as slags, they can be utilized for the formulation of AAMs.
Isabella Lancellotti   +5 more
openaire   +4 more sources

Reaction mechanism of sulfate attack on alkali-activated slag/fly ash cements

open access: yes, 2022
In this work, the effects of slag/fly ash ratios, Na2O concentration, and silicate modulus (Ms) of activators on the reaction mechanism of sulfate attack on alkali-activated slag/fly ash cements are elucidated by XRD, FTIR, and TG/DTG analysis.
Zhang, Zuhua   +3 more
core   +1 more source

Design of Alkali-Activated Slag-Fly Ash Concrete Mixtures Using Machine Learning [PDF]

open access: yes, 2020
So far, the alkali activated concrete has primarily focused on the effect of source material properties and ratio of mix proportions on the compressive strength development.
Raj, N.   +5 more
core   +1 more source

Mechanical properties of fly ash and blast furnace slag based alkali activated concrete using high silica modulus activator [PDF]

open access: yesE3S Web of Conferences, 2021
The alternative to cement is grabbing attention of inventors due to the numerous advantages with their usage. Fly Ash (FA) and Blast furnace slag (BFS) are abundantly available in bi product form.
Satyanarayana G.V.V.   +1 more
doaj   +1 more source

Effect of Graphene Oxide on Properties of Alkali-Activated Slag [PDF]

open access: yesMaterials, 2021
Alkali-activated materials, a new kind of low-carbon cement, have received extensive attention. While in order to obtain excellent functions, the modification of alkali-activated materials by nano-materials has become one of the important research directions of alkali-activated materials.
Quanwen Dong   +4 more
openaire   +2 more sources

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