Results 31 to 40 of about 58,047 (299)

Alkali-activated materials [PDF]

open access: yesCement and Concrete Research, 2018
© 2017 Elsevier Ltd.This paper, which forms part of the UNEP White Papers series on Eco-Efficient Cements, provides a brief discussion of the class of cementing materials known as 'alkali-activated binders', which are identified to have potential for utilization as a key component of a sustainable future global construction materials industry.
openaire   +2 more sources

Alkali leaching control of construction and demolition waste based geopolymers

open access: yesMATEC Web of Conferences, 2018
This study regards the synthesis of waste brick geopolymers and the evaluation of their alkali leaching potential. Geopolymers with varied alkali to Al molar ratios were prepared and their alkali leaching potential was measured.
Kioupis Dimitris   +3 more
doaj   +2 more sources

Extensive reuse of soda-lime waste glass in fly ash-based geopolymers [PDF]

open access: yes, 2018
The possibility of extensive incorporation of soda-lime waste glass in the synthesis of fly ash-based geopolymers was investigated. Using waste glass as silica supplier avoids the use of water glass solution as chemical activator.
Bernardo, E.   +5 more
core   +3 more sources

Reviews on the Properties of Aggregates made with or without Geopolymerisation Method [PDF]

open access: yes, 2013
Aggregates are popular for use in concrete and lightweight concrete applications. Recent research shows that the by-product materials such as fly ash can be used as raw material in producing aggregates and lightweight aggregates.
Abdul Razak, Rafiza   +5 more
core   +1 more source

Alkali-activated binders: a review: part 2. About materials and binders manufacture [PDF]

open access: yes, 2008
This paper summarizes current knowledge about alkali-activated binders, by reviewing previously published work. As it is shown in Part 1, alkali-activated binders have emerged as an alternative to (ordinary Portland cement) OPC binders, which seem to ...
Gomes, J. P. Castro   +2 more
core   +1 more source

Vertebrate OTOP1 is also an alkali-activated channel

open access: yesNature Communications, 2023
pH sensation is critical for survival of vertebrates. Here, authors found six vertebrate OTOP1 channels that were highly conserved and directly activated by extracellular alkali.
Lifeng Tian   +7 more
doaj   +1 more source

Life cycle assessment of Hybrid alkali-activated cement production with red mud as an alkali activator

open access: yesEnvironmental Science and Pollution Research, 2023
Abstract The production of Hybrid Alkali Activated Cement (HAAC) has generated considerable interest in environmental issues. In this research, the environmental impacts of utilizing red mud (RM) as a partial activator of alkali-activated ground granulated blast furnace slag (GBFS) in HAAC production have been evaluated. A contribution analysis
Qinli Zhang   +3 more
openaire   +2 more sources

Resistance to acid attack, abrasion and leaching behavior of alkali-activated mine waste binders [PDF]

open access: yes, 2011
This paper report results of a research project on the development of alkali-activated binders using mine wastes. Abrasion and acid resistance of two ordinary Portland cement (OPC) strength class concrete mixtures (C20/25 and C30/37) and several mine ...
A Aguilar   +30 more
core   +1 more source

Nanoscale Charge Balancing Mechanism in Alkali Substituted Calcium-Silicate-Hydrate Gels

open access: yes, 2016
Alkali-activated materials and related alternative cementitious systems are sustainable material technologies that have the potential to substantially lower CO$_2$ emissions associated with the construction industry. However, the impact of augmenting the
White, Claire E., Özçelik, V. Ongun
core   +2 more sources

Investigating of Mechanical Properties of Mortars Based on Fly Ash and Blast Furnace Slag Activated with Alkali [PDF]

open access: yes, 2017
Alkali activated mortars obtained from granulated blast furnace slag and fly ash were used instead of Portland cement by activating with alkali. Sodium silicate and sodium hydroxide were activated blast furnace slag and fly ash.
Filazi, A. (Ahmet)   +3 more
core   +1 more source

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