Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
The invention discloses a non-metal light sound absorption and insulation board which comprises a unit plate made of reactive powder concrete, wherein the reactive powder concrete is composed of Portland cement 42.5, quartz sand, an active admixture (KF+GF+FA), composite fibers and an efficient polycarboxylate superplasticizer. The preparation method of the unit plate comprises the following steps: step 1, stirring the Portland cement 42.5, the quartz sand, the active admixture (KF+GF+FA) and the efficient polycarboxylate superplasticizer according to a certain proportion for 10-15 minutes; through the designed composite fibers, a fiber reinforcing effect is achieved in concrete, and microcracks of the material are greatly reduced; it is guaranteed that the 28-day compressive strength is larger than 100 MPa, the breaking strength is larger than 25 MPa or above, and meanwhile, cracks caused by tiny demolding stress are avoided; a hole-shaped hollowed-out pattern is adopted, and the pattern can be segmented or integrally formed; and meanwhile, a secondary sound wave refraction plane is arranged on the inner wall of the plate surface hole, so that refraction and interference resistance loss of sound wavelength are effectively increased.
本发明公开了一种非金属轻质吸隔声板，包括单元板，该单元板由活性粉末混凝土制成，其中活性粉末混凝土由硅酸盐水泥42.5、石英砂、活性掺合料(KF+GF+FA)、复合纤维、高效聚羧酸减水剂构成；该单元板制备包括以下步骤：步骤一：将硅酸盐水泥42.5、石英砂、活性掺合料(KF+GF+FA)、高效聚羧酸减水剂按照一定比例进行搅拌，搅拌时长为10～15min；通过设计的复合纤维，在混凝土中起到了纤维增强作用，大大减少了材料的微裂纹出现；保证28天抗压强度大于100MPa、抗折强度大于25MPa以上，同时避免了微小脱模应力带来的裂纹；采取了孔型的镂空图案，图案可以采取切分或整体成型；同时在板面孔内壁具有二次声波折射平面，有效增加声波长的折射、干涉阻耗。
The invention discloses a non-metal light sound absorption and insulation board which comprises a unit plate made of reactive powder concrete, wherein the reactive powder concrete is composed of Portland cement 42.5, quartz sand, an active admixture (KF+GF+FA), composite fibers and an efficient polycarboxylate superplasticizer. The preparation method of the unit plate comprises the following steps: step 1, stirring the Portland cement 42.5, the quartz sand, the active admixture (KF+GF+FA) and the efficient polycarboxylate superplasticizer according to a certain proportion for 10-15 minutes; through the designed composite fibers, a fiber reinforcing effect is achieved in concrete, and microcracks of the material are greatly reduced; it is guaranteed that the 28-day compressive strength is larger than 100 MPa, the breaking strength is larger than 25 MPa or above, and meanwhile, cracks caused by tiny demolding stress are avoided; a hole-shaped hollowed-out pattern is adopted, and the pattern can be segmented or integrally formed; and meanwhile, a secondary sound wave refraction plane is arranged on the inner wall of the plate surface hole, so that refraction and interference resistance loss of sound wavelength are effectively increased.
本发明公开了一种非金属轻质吸隔声板，包括单元板，该单元板由活性粉末混凝土制成，其中活性粉末混凝土由硅酸盐水泥42.5、石英砂、活性掺合料(KF+GF+FA)、复合纤维、高效聚羧酸减水剂构成；该单元板制备包括以下步骤：步骤一：将硅酸盐水泥42.5、石英砂、活性掺合料(KF+GF+FA)、高效聚羧酸减水剂按照一定比例进行搅拌，搅拌时长为10～15min；通过设计的复合纤维，在混凝土中起到了纤维增强作用，大大减少了材料的微裂纹出现；保证28天抗压强度大于100MPa、抗折强度大于25MPa以上，同时避免了微小脱模应力带来的裂纹；采取了孔型的镂空图案，图案可以采取切分或整体成型；同时在板面孔内壁具有二次声波折射平面，有效增加声波长的折射、干涉阻耗。
Non-metal light sound absorption and insulation board
一种非金属轻质吸隔声板
KONG FEI (Autor:in)
27.11.2020
Patent
Elektronische Ressource
Chinesisch
Light composite sound absorption and insulation board
| Europäisches Patentamt | 2020
ENVIRONMENTALLY SOUND ABSORPTION SOUND INSULATION BOARD
| Europäisches Patentamt | 2015
| Europäisches Patentamt | 2021
Combined sound absorption and insulation board with high sound insulation capacity
| Europäisches Patentamt | 2021