常用材料的吸声系数.doc

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1、常用材料的吸声系数：                    125250500100020004000砖墙、抹光、涂漆0.010.010.020.020.020.03厚地毯，铺在水泥地上0.200.060.140.370.600.65混凝土墙、粗糙0.360.440.310.290.390.25混凝土墙，涂漆0.100.050.060.070.090.08丝绒0.30kg/m2，直接挂在墙上0.030.040.110.170.240.35丝绒0.43kg/m2，折叠面积一半0.070.310.490.750.700.60丝绒0.56kg/m2，折叠面积一半0.140.350.

2、490.750.700.60木地板0.150.110.100.070.060.07水泥地板0.010.010.0150.020.020.02普通玻璃（厚3mm～4mm）0.350.250.180.120.070.04石膏板,龙骨50×100mm,中心距40cm0.290.100.050.040.070.09开口的舞台（与设备有关）0.250.300.400.500.650.75很深的包厢0.500.550.650.700.801.00通风口0.150.220.300.400.450.50大理石或抛光板0.010.010.010.010.020.02胶合板（9mm厚）0.280

3、.220.170.090.100.11玻璃纤维（厚5cm)0.150.380.810.830.790.74超细玻璃纤维（厚5cm)0.250.410.820.830.89-矿渣棉（厚6.0cm）0.250.550.790.750.88-石棉（厚2.5cm)0.060.350.500.460.520.65甘蔗板（厚1.3cm)0.120.190.280.540.490.70木丝板（厚3cm)0.050.070.150.560.90-麻纤维板（厚2cm)0.090.110.160.220.28-玻璃棉板（厚5cm)0.060.170.480.810.950.90石棉板（厚0.8c

4、m)0.020.030.050.060.110.28青软木板（厚3.5cm)0.050.060.290.350.340.50工业毛毡（厚2.0cm)0.070.260.420.400.550.56沥青玻璃棉毡（厚3.0cm)0.110.130.260.460.750.88超细玻璃棉毡（厚4.0cm)0.080.240.890.690.77-沥青矿棉毡（厚3.0cm)0.080.180.500.680.810.89泡沫玻璃（厚4.0cm)0.110.270.350.310.43-树脂棉板（厚5.0cm)0.060.170.480.81--硬聚氯乙烯泡沫塑料板(厚2.5cm)0.

5、040.040.170.560.280.58酚醛泡沫塑料（厚2.0cm)0.080.150.300.520.560.60聚胺甲酸脂泡沫塑料（厚2.0cm)0.110.130.270.690.980.79微孔聚脂泡沫塑料（厚4.0cm)0.100.140.260.500.820.77粗孔聚脂泡沫塑料（厚4.0cm)0.060.100.200.590.680.85聚氯乙烯塑料（厚0.41cm)0.030.020.060.290.130.13尿荃米波罗（厚3.0cm)0.100.170.450.670.650.85微孔吸声砖（厚9.5cm)0.410.750.660.760.81-

6、泡沫石膏（厚2.5cm)0.060.180.500.700.550.50