Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
Sandstone acoustic board for firewall of ultra-high-voltage substation and manufacturing method thereof
The invention discloses a sandstone acoustic board for firewalls of an ultra-high-voltage substation and a manufacturing method thereof. The sandstone acoustic board is composed of natural sand. Natural sand is combined through a binder to form a whole body, and there are irregular mutually-connected pores among the natural sand. The manufacturing method of the sandstone acoustic board comprises the following steps: 1) the natural sand, the binder and a foaming agent are stirred and mixed uniformly; 2) the stirred mixture is poured into a mould, and the mixture tiled in the mould by vibration to form a board; 3) the board in the mould is maintained and the board is dried and hardened, and the foaming agent foams fully among natural sand to generate pores; and 4) mould stripping is carried out after the maintenance so as to obtain a finished product the sandstone acoustic board. The sandstone acoustic board has high low-frequency acoustical absorption coefficient, has no fibrous dust pollution problem and is applicable to a substation.
Sandstone acoustic board for firewall of ultra-high-voltage substation and manufacturing method thereof
The invention discloses a sandstone acoustic board for firewalls of an ultra-high-voltage substation and a manufacturing method thereof. The sandstone acoustic board is composed of natural sand. Natural sand is combined through a binder to form a whole body, and there are irregular mutually-connected pores among the natural sand. The manufacturing method of the sandstone acoustic board comprises the following steps: 1) the natural sand, the binder and a foaming agent are stirred and mixed uniformly; 2) the stirred mixture is poured into a mould, and the mixture tiled in the mould by vibration to form a board; 3) the board in the mould is maintained and the board is dried and hardened, and the foaming agent foams fully among natural sand to generate pores; and 4) mould stripping is carried out after the maintenance so as to obtain a finished product the sandstone acoustic board. The sandstone acoustic board has high low-frequency acoustical absorption coefficient, has no fibrous dust pollution problem and is applicable to a substation.
Sandstone acoustic board for firewall of ultra-high-voltage substation and manufacturing method thereof
LI YONGGUI (Autor:in) / QI JIANZHAO (Autor:in) / ZHANG GUOHUA (Autor:in)
08.04.2015
Patent
Elektronische Ressource
Englisch
IPC:
C04B
Kalk
,
LIME
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