Lightweight concrete from a perspective of sustainable reuse of waste byproducts

2022 ◽  
Vol 319 ◽  
pp. 126061
Author(s):  
Muhammad Faisal Junaid ◽  
Zia ur Rehman ◽  
Michal Kuruc ◽  
Igor Medveď ◽  
Darius Bačinskas ◽  
...  
Keyword(s):  
2004 ◽  
Vol 26 (4) ◽  
pp. 307-314 ◽  
Author(s):  
M.N Haque ◽  
H Al-Khaiat ◽  
O Kayali

Silicon ◽  
2021 ◽  
Author(s):  
Abdelilah Bellil ◽  
Ayoub Aziz ◽  
Iz-Iddine El Amrani El Hassani ◽  
Mohammed Achab ◽  
Abdelilah El Haddar ◽  
...  

2021 ◽  
Vol 11 (1) ◽  
Author(s):  
Suman Kumar Adhikary ◽  
Žymantas Rudžionis ◽  
Simona Tučkutė ◽  
Deepankar Kumar Ashish

AbstractThis study is aimed to investigate the effect of carbon nanotubes on the properties of lightweight aggregate concrete containing expanded glass and silica aerogel. Combinations of expanded glass (55%) and hydrophobic silica aerogel particles (45%) were used as lightweight aggregates. Carbon nanotubes were sonicated in the water with polycarboxylate superplasticizer by ultrasonication energy for 3 min. Study results show that incorporating multi-wall carbon nanotubes significantly influences the compressive strength and microstructural performance of aerogel based lightweight concrete. The addition of carbon nanotubes gained almost 41% improvement in compressive strength. SEM image of lightweight concrete shows a homogeneous dispersal of carbon nanotubes within the concrete structure. SEM image of the composite shows presence of C–S–H gel surrounding the carbon nanotubes, which confirms the cites of nanotubes for the higher growth of C–S–H gel. Besides, agglomeration of carbon nanotubes and the presence of ettringites was observed in the transition zone between the silica aerogel and cementitious materials. Additionally, flowability, water absorption, microscopy, X-ray powder diffraction, and semi-adiabatic calorimetry results were analyzed in this study.


Author(s):  
Emilio Sassine ◽  
Elias Kinab ◽  
Yassine Cherif ◽  
Emmanuel Antczak ◽  
Michel Nasrallah

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