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本文综述了轨道交通和公路交通常用的降噪材料,评述了水泥基多孔吸声材料国内外研究现状,重点论述了水泥基泡沫吸声材料的性能及影响因素,并与水泥-珍珠岩多空吸声材料和水泥-陶瓷多孔吸声材料的吸声性能进行了对比。众多研究成果显示,水泥基泡沫吸声材料具有优异的吸声性能和性价比,未来将会在降噪工程中有着较大的应用前景。
In this paper, the commonly used noise reduction materials for rail transit and road traffic are reviewed. The current research status of cement based porous sound-absorbing materials at home and abroad is reviewed. The performance and influential factors of cement-based foam sound-absorbing materials are discussed. Sound absorption materials and cement - ceramic porous sound-absorbing materials were compared sound-absorbing properties. Numerous research results show that cement-based foam sound-absorbing materials have excellent sound absorption performance and cost-effective, the future will be in the noise reduction project has a larger application prospects.