Evaluation on Mechanical Properties and Thermal Resistance of Lightweight Concrete Using Bottom Ash Aggregates and Expanded Polystyrene Bead

2021 ◽  
Vol 33 (6) ◽  
pp. 569-577
Author(s):  
Jong-Won Kim ◽  
Keun-Hyeok Yang ◽  
Ju-Hyun Mun
Keyword(s):  
Mechanical Properties ◽  
Thermal Resistance ◽  
Lightweight Concrete ◽  
Bottom Ash ◽  
Expanded Polystyrene ◽  
Polystyrene Bead ◽  
Ash Aggregates

scholarly journals Utilization trials of lignite solid byproducts of West Macedonia and Peloponnesus lignite fired power plants for the production of lightweight aggregates

2016 ◽  
Vol 47 (4) ◽  
pp. 1600
Author(s):  
I. Anagnostopoulos ◽  
P. Lampropoulou ◽  
Th. Tzevelekou ◽  
V. Stivanakis ◽  
A. Kastanaki ◽  
...  
Keyword(s):  
Mechanical Properties ◽  
Power Plants ◽  
Lightweight Concrete ◽  
Energy Content ◽  
Raw Materials ◽  
Bottom Ash ◽  
Lightweight Aggregates ◽  
Fly Ashes ◽  
Crystalline Phases ◽  
Concrete Production

The production of lightweight aggregates from the utilization of solid byproducts [fly ash (FA) and bottom ash (BA)], of the lignite fired power plants from West Macedonia (Kardia, Ptolemaida) and Peloponnesus (Megalopolis), has been investigated in this study. Sintering of FA and BA with the grate sinter band method was selected because it exploits the energy content of the raw materials for the increase of temperature and completion of the material’s sintering. These byproducts contain the necessary carbon content for temperature increase during the sintering process. Detailed XRD analyses show that Megalopoli’s FA contains high amounts of amorphous phase (25-54wt%) while fly ashes from Kardia and Ptolemaida power units are more crystalline. Lime and anhydrite are the most abundant crystalline phases in Ptolemaida’s and Kardia’s fly ashes. The bottom ashes revealed high percentages of amorphous content (58-64wt%) and anorthite and quartz as the major crystalline phases. Mixtures of different BA/FA ratios were prepared for sintering tests. The sintered mixtures from Kardia’s and Ptolemaida’s regions did not have sufficient mechanical properties for further treatment. The sintercake produced from Megalopolis’ ashes exhibited good mechanical properties and was selected for further study for use as light aggregate raw materials to the lightweight concrete production.

Mechanical Properties, Thermal Conductivity, and Sound Absorption of Pervious Concrete Containing Recycled Concrete and Bottom Ash Aggregates

2018 ◽  
Vol 22 (4) ◽  
pp. 1369-1376 ◽  
Author(s):  
Chanchai Ngohpok ◽  
Vanchai Sata ◽  
Thaned Satiennam ◽  
Pongrid Klungboonkrong ◽  
Prinya Chindaprasirt
Keyword(s):  
Mechanical Properties ◽  
Thermal Conductivity ◽  
Sound Absorption ◽  
Bottom Ash ◽  
Recycled Concrete ◽  
Pervious Concrete ◽  
Ash Aggregates
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