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1、材料/结构厚度(cm)密度(Kg/m3)对各频率的吸音系数125250500100020004000大理石、水磨石、 花岗石、等光滑 石材0.010.010.010.020.020.02混凝土或水泥地 面0.010.010.020.020.020.03实铺木地板0.040.040.030.030.030.02木阁栅地板0.150.110.100.070.060.07玻璃0.030.0270.02玻璃窗户0.350.250.180.120.070.04厚玻璃地板0.180.060.040.030.020.02砖墙，粗糙（未 水泥）0.360.440.310.290.390.25砖墙、未抹灰0.0
2、240.0250.0320.0410.0490.07砖墙、抹灰（未 漆）0.020.020.020.030.030.04砖墙，水泥拉毛0.040.040.050.060.070.05弓形圆柱面0.410.400.330.250.220.20加气混凝土9cm670Kg/m30.080.100.100.190.270.20木架板条，毛面 抹灰0.0250.0450.0360.0870.0420.058木架板条，光面 抹灰0.0240.0270.0300.0370.0360.033普通木板，贴墙 装0.050.060.060.10.10.10.5cm薄木板(距 墙 10 15cm)0.250.150
3、.080.070.040.04三夹板，距墙5 cm龙骨间距50 X 45cm0.3cm0.210.730.210.100.080.12三夹板，距墙10cm龙骨间距0.3cm0.590.380.180.050.040.0850*45cm五夹板，距墙5 cm龙骨间距50*45cm三遍漆0.5cm0.110.260.150.040.050.10五夹板，距墙 9cm龙骨间距 50*45cm三遍漆0.5cm0.020.020.100.100.100.10五夹板，距墙 20cm龙骨间距 50*45cm三遍漆0.5cm0.600.130.100.040.060.17甘蔗板，贴墙1.3cm2000.120.1
4、90.280.540.490.70甘蔗板，距墙5 cm1.3cm2000.200.920.500.320.400.52甘蔗板，距墙5 cm2.0cm3000.250.820.740.640.510.56刨花板，距墙5 cm1.5cm0.350.270.200.150.250.39刨花板，距墙15cm1.5cm0.360.260.160.160.230.38皮面门0.100.110.110.090.090.11木门0.160.150.100.100.100.10卡普隆纤维6330.120.260.580.910.960.98超细玻璃棉2200.050.100.300.650.650.65超细玻璃
5、棉3200.070.180.380.890.810.98超细玻璃棉5200.150.350.850.850.860.86超细玻璃棉9200.320.400.510.600.650.60超细玻璃棉10200.250.600.850.870.870.85超细玻璃棉15200.500.800.850.850.860.80玻璃丝51000.150.380.810.830.790.74玻璃丝51500.120.300.720.990.870.83玻璃丝52000.100.280.740.870.900.83矿渣棉81500.300.640.730.780.930.94矿渣棉43000.320.400.5
6、30.550.610.66矿渣棉83000.350.430.550.670.780.92玻璃、矿渣棉空 气层为30cm2.50.750.800.750.750.800.90玻璃、矿渣棉空 气层为30cm5.00.800.850.900.850.800.85玻璃、矿渣棉空气层为0cm2.50.100.200.350.550.600.65玻璃、矿渣棉空气层为10cm2.50.300.700.900.850.800.85玻璃、矿渣棉空气层为0cm5.00.200.600.900.900.850.90晴纶棉5.0200.140.370.680.750.780.82珍珠岩砌块，空 气层为0100.400
7、.500.500.450.500.45木丝板，距墙5 cm3.00.050.300.810.630.690.91木丝板，距墙10cm3.00.090.360.620.530.710.89木丝板，贴墙装5.00.150.230.640.780.870.92木丝板，距墙10cm5.00.330.930.680.720.830.86水泥刨花板（木 丝板），空气层4.59cm1.50.050.100.350.500.450.55水泥刨花板（木 丝板），空气层18cm1.50.100.400.400.350.600.60水泥刨花板（木 丝板），空气层0cm2.50.050.400.350.650.700
8、.75水泥刨花板（木 丝板），空气层4.59cm2.50.100.250.650.600.650.80水泥刨花板（木 丝板），空气层18cm2.50.250.600.500.550.700.80水泥刨花板（木 丝板），空气层0cm3.00.100.200.550.650.700.75水泥刨花板（木 丝板），空气层9cm3.00.250.750.750.500.800.75水泥刨花板（木 丝板），空气层Ocm5.00.150.350.900.800.850.85水泥刨花板（木 丝板），空气层4.59cm5.00.250.650.750.700.750.75水泥刨花板（木 丝板），空气层18cm5
9、.00.650.700.500.750.750.70矿棉吸声板1.71500.090.180.500.710.760.81水泥膨胀珍珠岩 板83000.340.470.400.370.480.55尿醛泡沫塑料5140.110.300.520.860.910.96尿醛泡沫塑料10120.470.700.870.860.960.97尿醛泡沫塑料离墙 10cm5120.590.840.900.760.970.98聚氨酯吸声泡沫 塑料2.5180.120.210.480.700.770.76聚氨酯吸声泡沫 塑料5180.160.280.780.690.810.84人造毛墙布、贴 墙360g/m20.0
10、10.050.100.100.250.45人造毛墙布、贴 墙360 g/m20.030.040.110.170.240.35人造毛墙布、贴 墙500 g/m20.040.070.130.220.330.35棉挂帘，1/8面积 折叠500 g/m20.030.120.150.270.370.42棉挂帘，1/4面积 折叠500 g/m20.040.230.400.570.530.40棉挂帘，1/2面积 折叠500 g/m20.070.370.490.810.650.54丝绒，展开310 g/m20.030.040.110.170.240.35丝绒，1/2面积折430 g/m20.070.310.4
11、90.750.700.60叠丝绒，1/2面积折 叠475 g/m20.070.320.490.760.710.60丝绒，贴墙611 g/m20.050.120.350.450.380.36丝绒，距墙1cm611 g/m20.060.260.430.500.400.35丝绒，距墙2cm611 g/m20.080.280.440.510.290.36丝绒，1/2面积折 叠611 g/m20.140.350.550.720.700.65地毯，铺在混凝 土上厚0.020.060.150.250.300.35地毯，铺在毡上厚0.080.240.570.690.710.73地毯，铺在地板 上0.110.130.28
