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

2022 ◽  
Vol 318 ◽  
pp. 126052
Author(s):  
Jian Zhang ◽  
Caijun Shi ◽  
Zuhua Zhang ◽  
Xiang Hu
Keyword(s):  
Reaction Mechanism ◽  
Fly Ash ◽  
Sulfate Attack ◽  
Alkali Activated Slag ◽  
Activated Slag ◽  
Alkali Activated

scholarly journals Effect of metakaolin on the autogenous shrinkage of alkali-activated slag-fly ash paste

2021 ◽  
Vol 278 ◽  
pp. 122397
Author(s):  
Zhenming Li ◽  
Xuhui Liang ◽  
Yun Chen ◽  
Guang Ye
Keyword(s):  
Fly Ash ◽  
Autogenous Shrinkage ◽  
Alkali Activated Slag ◽  
Activated Slag ◽  
Alkali Activated

Chloride binding of alkali-activated slag/fly ash cements

2019 ◽  
Vol 226 ◽  
pp. 21-31 ◽  
Author(s):  
Jian Zhang ◽  
Caijun Shi ◽  
Zuhua Zhang
Keyword(s):  
Fly Ash ◽  
Chloride Binding ◽  
Alkali Activated Slag ◽  
Activated Slag ◽  
Alkali Activated

scholarly journals Pore solution composition of alkali-activated slag/fly ash pastes

2019 ◽  
Vol 115 ◽  
pp. 230-250 ◽  
Author(s):  
Yibing Zuo ◽  
Marija Nedeljković ◽  
Guang Ye
Keyword(s):  
Fly Ash ◽  
Pore Solution ◽  
Solution Composition ◽  
Alkali Activated Slag ◽  
Activated Slag ◽  
Alkali Activated

scholarly journals Alkali-Activated Slag/ Fly Ash Concrete: Mechanism, Properties, Hydration Product and Curing Temperature

2020 ◽  
Vol 9 (9) ◽  
pp. 204-215
Keyword(s):  
Fly Ash ◽  
Hydration Product ◽  
Test Methods ◽  
Curing Temperature ◽  
Environmental Friendliness ◽  
Alkali Activated Slag ◽  
Fly Ash Concrete ◽  
Activated Slag ◽  
Alkali Activated Concrete ◽  
Alkali Activated

Alkali-activated concrete (AAC) is mounting as a feasible alternative to OPC assimilated to reduce greenhouse gas emanated during the production of OPC. Use of pozzolana results in gel over-strengthening and fabricate less quantity of Ca(OH)2 which provide confrontation to concrete against hostile environment. (AAC) is potential due to inheriting the property of disbursing CO2 instantly from the composition. Contrastingly an option to ordinary Portland cement (OPC), keeping this fact in mind the goal to evacuate CO2 emits and beneficiate industrial by-products into building material have been taken into consideration. Production of alkali-activated cement emanates CO2 nearly 50-80% less than OPC. This paper is the general assessment of current report on the fresh and hardened properties of alkali-activated fly ash (AAF), alkali-activated slag (AAS), and alkali activated slag and fly ash (AASF) concrete. In the recent epoch, there has been a progression to blend slag with fly ash to fabricate ambient cured alkali-activated concrete. Along with that the factors like environmental friendliness, advanced studies and investigation are also mandatorily required on the alkali activated slag and fly ash concrete. In this way, the slag to fly ash proportion impacts the essential properties and practical design of AAC. This discusses and reports the issue in an intensive manner in the following sections. This will entail providing a good considerate of the following virtues like workability, compressive strength, tensile strength, durability issues, ambient and elevated-temperature curing of AAC which will improve further investigation to elaborate the correct test methods and to commercialize it.

Experimental Study on Alkali-Activated Slag-Lithium Slag-Fly Ash Environmental Concrete

2011 ◽  
Vol 287-290 ◽  
pp. 1237-1240
Author(s):  
Lan Fang Zhang ◽  
Rui Yan Wang
Keyword(s):  
Experimental Study ◽  
Compressive Strength ◽  
Fly Ash ◽  
Setting Time ◽  
Alkali Activated Slag ◽  
Percent Increase ◽  
Compressive Strength Of Concrete ◽  
Activated Slag ◽  
Lithium Slag ◽  
Alkali Activated

The aim of this paper is to study the influence of lithium-slag and fly ash on the workability , setting time and compressive strength of alkali-activated slag concrete. The results indicate that lithium-slag and fly-ash can ameliorate the workability, setting time and improve the compressive strength of alkali-activated slag concrete，and when 40% or 60% slag was replaced by lithium-slag or fly-ash, above 10 percent increase in 28-day compressive strength of concrete were obtained.

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