Fabrication and characterization of self-ignition coal gangue autoclaved aerated concrete

2016 ◽  
Vol 97 ◽  
pp. 155-162 ◽  
Author(s):  
X.Y. Cong ◽  
S. Lu ◽  
Y. Yao ◽  
Z. Wang
Keyword(s):  
Coal Gangue ◽  
Autoclaved Aerated Concrete ◽  
Aerated Concrete ◽  
Fabrication And Characterization

Study on Production of Autoclaved Aerated Concrete by Coal Gangue Fly Ash

2013 ◽  
Vol 357-360 ◽  
pp. 949-954
Author(s):  
Ye Zhang ◽  
Peng Xuan Duan ◽  
Bao Sheng Jia ◽  
Lei Li
Keyword(s):  
Compressive Strength ◽  
Fly Ash ◽  
Drying Shrinkage ◽  
Coal Gangue ◽  
National Standards ◽  
Raw Material ◽  
Autoclaved Aerated Concrete ◽  
Binder Ratio ◽  
Material Formulation ◽  
Aerated Concrete

In this paper, the low-silicon coal gangue fly ash is used to produce autoclaved aerated concrete. The influences of water binder ratio, coal gangue fly ash content, calcareous content and conditioning agents on the compressive strength of the autoclaved aerated concrete are investigated. Optimal raw material formulation and procedure are determined for the autoclaved aerated concrete. The compressive strength and frost resistance of autoclaved aerated concrete made by the optimal raw material formulation and procedure meet with the requirements of autoclaved aerated concretes of B05 grade, and its thermal conductivity, drying shrinkage reach the requirements of the relevant national standards of China.

Preparation and properties of autoclaved aerated concrete using coal gangue and iron ore tailings

2016 ◽  
Vol 104 ◽  
pp. 109-115 ◽  
Author(s):  
Chang-long Wang ◽  
Wen Ni ◽  
Si-qi Zhang ◽  
Shuang Wang ◽  
Guo-sheng Gai ◽  
...  
Keyword(s):  
Iron Ore ◽  
Coal Gangue ◽  
Autoclaved Aerated Concrete ◽  
Iron Ore Tailings ◽  
Aerated Concrete

A Comparative Study on Production of Autoclaved Aerated Concrete by Coal Gangue Fly Ash

2013 ◽  
Vol 395-396 ◽  
pp. 433-438 ◽  
Author(s):  
Ye Zhang ◽  
Peng Xuan Duan ◽  
Bao Sheng Jia ◽  
Lei Li
Keyword(s):  
Fly Ash ◽  
Ash Content ◽  
Coal Gangue ◽  
Raw Material ◽  
Autoclaved Aerated Concrete ◽  
Binder Ratio ◽  
Material Formulation ◽  
Aerated Concrete ◽  
The Common ◽  
Water Binder Ratio

In this paper, compared with common fly ash, the low-silicon coal gangue fly ash is used to produce fly ash autoclaved aerated concrete. The influences of water binder ratio, coal gangue fly ash content, calcareous content and conditioning agents on the compressive strength of the autoclaved aerated concrete are investigated. The results indicate the coal gangue fly ash has different properties from the common fly ash such as its granule appearance and the activity as AAC siliceous raw material. It is noting that the coal gangue fly ash can also be used to prepare AAC blocks by optimizing the raw material formulation and procedure and its B05 product can reach the China top industrial standard.

scholarly journals Water absorptivity and frost resistance performance of self-ignition coal gangue autoclaved aerated concrete

2021 ◽  
Vol 2 (1) ◽  
Author(s):  
Xinyu Cong ◽  
Yiqiu Tan ◽  
Shuang Lu ◽  
Zhaojia Wang ◽  
Tianyong Huang
Keyword(s):  
Water Absorption ◽  
Water Content ◽  
Frost Resistance ◽  
Coal Gangue ◽  
Calcium Stearate ◽  
Freeze Thaw ◽  
Foam Stabilizer ◽  
Autoclaved Aerated Concrete ◽  
Aerated Concrete ◽  
Resistance Performance

AbstractSelf-ignition coal gangue (SCG) used as one of precursors to fabricate autoclaved aerated concrete (AAC). Aiming at studying water absorptivity and frost resistance performance of SCG-based AAC (SCGAAC), three-period water absorption tests and freeze-thaw tests were carried out and the corresponding results were recorded and analyzed. In order to modify the water absorptivity of SCGAAC, foam stabilizer was applied to adjust pore structure while calcium stearate was expected to change hydrophilic feature of SCG. It was demonstrated that the compressive strength of SCGAAC containing foam stabilizer or calcium stearate declined at different levels. For water absorption, foam stabilizer failed to decrease the water content and even increased water absorption rates. Calcium stearate controlled water absorption rate successfully although the ultimate water content hardly reduced. All of the SCGAAC samples exhibited intact appearance after 50 freeze-thaw cycles and showed excellent frost resistance performance. Three models were proposed to predict water absorptivity and frost resistance performance of SCGAAC and the corresponding prediction results matched test resulted well.

Preparation and characterization of waterproof autoclaved aerated concrete using molybdenum tailings as the raw materials

2022 ◽  
pp. 104036
Author(s):  
Chuanlong Shan ◽  
Zanzhong Yang ◽  
Zhen Su ◽  
Ramachandran Rajan ◽  
Xuexia Zhou ◽  
...  
Keyword(s):  
Raw Materials ◽  
Autoclaved Aerated Concrete ◽  
Aerated Concrete

scholarly journals Properties and Hydration Mechanism of Autoclaved Aerated Concrete Containing Coal Gangue and Fly Ash

2019 ◽  
Vol 22 (4) ◽  
pp. 231-238
Author(s):  
Jun Li ◽  
Zhaojia Wang ◽  
Kaifan Zhang ◽  
Changlong Wang ◽  
Xiaowei Cui
Keyword(s):  
Fly Ash ◽  
Coal Gangue ◽  
Hydration Mechanism ◽  
Autoclaved Aerated Concrete ◽  
Aerated Concrete
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