Effect of Direct Fire Exposure on the Physical and Mechanical Properties of Autoclaved Aerated Concrete (AAC) Based on Ceramic and Gypsum Waste (CGW) as Partial Substitution for Sand

被引：0

作者：

Efil, Y. ^{[1
,2
]}

Noraini, M. ^{[1
,3
]}

Izzati, A. M. ^{[1
]}

Hafizuddin, H. S. ^{[4
]}

机构：

[1] Univ Tun Hussein Onn Malaysia, Fac Engn Technol, Pagoh Campus KM 1,Jln Panchor, Pagoh 86400, Johor, Malaysia

[2] Univ Islam Negeri Imam Bonjol Padang, Fac Educ Sci, Kota Padang 25153, Sumatera Barat, Indonesia

[3] Univ Tun Hussein Onn Malaysia, Adv Mfg & Mat Ctr AMMC, Inst Integrated Engn, Batu Pahat 86400, Johor, Malaysia

[4] Kim Hoe Thye Ind Sdn Bhd, Greencon Lab, 99,Lot 143, Muar 84150, Johor, Malaysia

来源：

INTERNATIONAL JOURNAL OF INTEGRATED ENGINEERING | 2024年 / 16卷 / 09期

关键词：

Direct fire exposure; work density; compressive strength; autoclaved; aerated concrete; ceramic-gypsum waste; sand replacement; PASTES;

D O I：

10.30880/ijie.2024.16.09.008

中图分类号：

T [工业技术];

学科分类号：

08 ;

摘要：

Autoclaved aerated concrete (AAC) containing ceramic-gypsum waste (CGW) as a partial substitution for sand and pure AAC were fabricated in this study. The compressive strength ranged from 1.64 MPa to 2.13 MPa, and work density ranged from 594 kg/m3 to 605 kg/m(3). All AAC samples were exposed to direct fire at 923.8 degrees C for 300 seconds. The maximum surface temperature (T-1) and opposite surface temperature (T-2) were 930.1 degrees C and 31.7 degrees C, respectively. The average T-1 of the sample was around 169.88 degrees C, and the average thermal storage was around 10.36% after cooling for 900 seconds. Meanwhile, the average T-2 was 31.3 degrees C, almost similar to the workshop temperature. Except for pure AAC, the samples did not crack, burn, or melt during exposure to direct fire at a temperature of 920 degrees C for 300 seconds. Direct fire testing also positively affected the work density and compressive strength of AAC-CGW. The average work density decreased by 10.69%, and compressive strength increased by 12.39%. The maximum work density was reduced by 14.57 % for AAC-1, and compressive strength increased by 39.15% for pure AAC. This study demonstrated that the AAC-CGW is suitable for thermal and fire resistance walls due to their excellent durability and strength after exposure to direct fire.

引用

页码：108 / 117

页数：10

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