Properties of concrete made with alkali-activated fly ash lightweight aggregate (AFLA)

2007 ◽  
Vol 29 (2) ◽  
pp. 128-135 ◽  
Author(s):  
Byung-wan Jo ◽  
Seung-kook Park ◽  
Jong-bin Park
Keyword(s):  
Fly Ash ◽  
Lightweight Aggregate ◽  
Alkali Activated

scholarly journals The Durability of Mortar Containing Alkali Activated Fly Ash-Based Lightweight Aggregate

Materials ◽  
2021 ◽  
Vol 14 (13) ◽  
pp. 3741
Author(s):  
Puput Risdanareni ◽  
Philip Van den Heede ◽  
Jianyun Wang ◽  
Nele De Belie
Keyword(s):  
Fly Ash ◽  
Construction Material ◽  
Weight Ratio ◽  
Lightweight Aggregate ◽  
High Water ◽  
High Porosity ◽  
Carbonation Resistance ◽  
Chloride Migration ◽  
The One ◽  
Alkali Activated

Beneficiating fly ash as valuable construction material such as artificial lightweight aggregate (LWA) could be an alternative solution to increase the utilization of the industrial by-product. However, generally, LWA is characterized by high porosity and a related high water absorption, which on the one hand allows production of lightweight mortar, but on the other hand can affect its performance. Thus, in this research, the durability performance of mortar composed with alkali-activated fly ash-based LWA, and commercial expanded clay (EC) LWA was investigated. The fly ash LWA was prepared in a pan granulator, with a 6-molar solution of NaOH mixed with Na2SiO3 in a Na2SiO3/NaOH weight ratio of 1.5 being used as activator (FA 6M LWA). The results revealed that mortar containing FA 6M LWA had equivalent mechanical strength with mortar containing EC LWA. The mortar containing FA 6M LWA had comparable capillary water uptake and chloride migration resistance with the reference and EC LWA mortar. Furthermore, the addition of FA 6M LWA was proven to enhance the carbonation resistance in the resulting mortar, due to the denser interfacial transition zone (ITZ) of mortar with LWA.

Mechanical Properties of Alkali Activated Fly Ash Geopolymer Stabilized Expansive Clay

2019 ◽  
Vol 23 (9) ◽  
pp. 3875-3888 ◽  
Author(s):  
Anant Lal Murmu ◽  
Anamika Jain ◽  
Anjan Patel
Keyword(s):  
Mechanical Properties ◽  
Fly Ash ◽  
Expansive Clay ◽  
Alkali Activated

Effects of waste glass as a sand replacement on the strength and durability of fly ash/GGBS based alkali activated mortar

2021 ◽  
Author(s):  
Sasui Sasui ◽  
Gyuyong Kim ◽  
Jeongsoo Nam ◽  
Arie van Riessen ◽  
Marijana Hadzima-Nyarko
Keyword(s):  
Fly Ash ◽  
Waste Glass ◽  
Strength And Durability ◽  
Alkali Activated
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