人们为保证不同用途的房间与厂房内具有舒适的音响效果,广泛采用着各种吸声材料。目前,苏联建材工业中所研制的吸声材料,大多为半砖厚的石膏吸声板。原因在于石膏原料的利用率高,成本低,生产能耗少,以及具有防火性和装饰性等特点。但是,现行的石膏板有着不利音响效果的共振性能,当用作墙面和天花板,特别是用在噪音源很大的厂房内时,不能达到所要求的音响参数,因此,对普通石膏板的使用有一定的局限性。 People use a variety of sound-absorbing materials to ensure comfortable sound effects in rooms and factories of different uses. At present, the sound-absorbing materials developed in the Soviet building materials industry are mostly half-brick gypsum sound-absorbing panels. The reason lies in the high utilization rate of gypsum raw materials, low cost, low energy consumption in production, and fireproofness and decorative characteristics. However, the current gypsum board has unfavorable acoustic resonance characteristics. When used as walls and ceilings, especially in a building with a large noise source, the required acoustic parameters cannot be achieved. Therefore, for ordinary gypsum board Use has certain limitations.