Results 21 to 30 of about 451,435 (111)

Optimization of Soil Stabilization with Class C Fly Ash; HR-260 , January 1987 [PDF]

open access: yes, 1987
Previous Iowa DOT sponsored research has shown that some Class C fly ashes are ementitious (because calcium is combined as calcium aluminates) while other Class C ashes containing similar amounts of elemental calcium are not (1).

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The use of fly ash to stabilise low concentrations of mercury in the environment

open access: yes, 2010
The work investigates if fly ash from Ekibatuz Power Plant can stabilise low concentrations of mercury in the environment and prevent it from becoming soluble in water and in preventing it transforming into the methylated form. The work demonstrates that
Kitchainukul, Waraporn
core   +1 more source

An assessment of the effects of pozzolanic activity on the behaviour of fly ash [PDF]

open access: yes, 2000
This research used the ideas and methods, employed in previous studies of residual and weakly bonded soils, to help understand the shear strength and yielding characteristics of pozzolanically reacted fly ash.
Adams, Andrew, Adams, A.
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The influence of fly ash as substitute of cement in the durability of concrete [PDF]

open access: yes, 2008
Limitation of transport capacity through the concrete is one of the key points in the improvement of the material’s durability. The use of fly ash as an admixture to concrete is widely extended; a general consensus has been established due to the pore ...
Moragues Terrades, Amparo   +3 more
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Effect of fly ash microsphere on the rheology and microstructure of alkali-activated fly ash/slag pastes

open access: yes, 2018
The highly viscous property of alkali silicate-activated cements is one of the critical challenges that hinder their wide application. The present study focuses on ameliorating the rheological performance of sodium silicate-activated fly ash/slag pastes ...
Zhu, Huajun   +11 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

Characterization of ash derived from combustion of paper mill waste sludge: Comparison with municipal solid waste incinerator ash [PDF]

open access: yes, 2007
Fly ash derived from incineration of Malaysian paper mill waste sludge (PMWS) was physically and chemically characterized in order to determine its potential toxicity as well as its application as cement replacement material.
Kadir, S.A.S.A.   +11 more
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Chloride binding of alkali-activated slag/fly ash cements

open access: yes, 2019
In this study, the effects of slag/fly ash ratio, Na2O concentration, silicate modulus of activators and water/binder ratio on chloride binding of alkali-activated slag/fly ash cements (AACs) are studied, using the binding isotherms.
Zhang, Zuhua   +5 more
core   +1 more source

Drying shrinkage of alkali-activated fly ash/slag blended system

open access: yes, 2018
The drying shrinkage of alkali-activated fly ash/slag (AAFS) is an important engineering property for the control of cracking when AAFS is utilized as a building material.
Yuwei Ma   +3 more
core   +1 more source

Fly ash-based geopolymers : identifying reactive glassy phases in potential raw materials [PDF]

open access: yes, 2013
textGeopolymer cements present a unique opportunity to make concrete binders almost entirely out of waste stream materials. Geopolymers made from fly ash, a waste product of coal power generation, as the aluminosilicate source and caustic activating ...
Aughenbaugh, Katherine Louise
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