Green alkali-activated mortar: Sustainable use of discarded cathode-ray tube glass powder as precursor

2019 ◽  
Vol 229 ◽  
pp. 1082-1092 ◽  
Author(s):  
Wu-Jian Long ◽  
Hao-Dao Li ◽  
Hongyan Ma ◽  
Yuan Fang ◽  
Feng Xing
2021 ◽  
pp. 127949
Author(s):  
Dongzhao Jin ◽  
Jiaqing Wang ◽  
Lingyun You ◽  
Dongdong Ge ◽  
Chaochao Liu ◽  
...  

2019 ◽  
Vol 69 (335) ◽  
pp. 194 ◽  
Author(s):  
S. Stoleriu ◽  
I. N. Vlasceanu ◽  
C. Dima ◽  
A. I. Badanoiu ◽  
G. Voicu

Porous alkali activated materials (AAM), can be obtained from waste glass powder and slag mixtures by alkali activation with NaOH solution. To obtain an adequate porous microstructure, the hardened AAM pastes were thermally treated at temperatures ranging between 900°C and 1000°C, for 60 or 30 minutes. Due to the intumescent behaviour specific for this type of materials, an important increase of the volume and porosity occurs during the thermal treatment. The partial substitution of waste glass powder with slag, determines the increase of compressive strength assessed before (up to 37 MPa) and after (around 10 MPa) thermal treatment; the increase of slag dosage also determines the increase of the activation temperature of the intumescent process (above 950°C). The high porosity and the specific microstructure (closed pores with various shapes and sizes) of these materials recommend them to be utilised as thermal and acoustical insulation materials.


2022 ◽  
Vol 6 ◽  
pp. 100354
Author(s):  
Md Nabi Newaz Khan ◽  
Jhutan Chandra Kuri ◽  
Prabir Kumar Sarker

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