Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
The invention relates to the technical field of cement-based building materials, in particular to a foamed concrete sound barrier and a preparation method thereof.The foamed concrete sound barrier is based on an active powder concrete system, high-alumina cement, Portland cement, desulfurized gypsum, phosphorus slag powder and modified zeolite powder are adopted as cementing materials, hydration processes are matched with one another, the strength is high, and the sound barrier is good in sound barrier performance. The steel fiber is added to improve the rigidity and strength of the foamed concrete, and the modified zeolite powder is also used as a gas forming component and is matched with lignosulfonate and millimeter-scale SAP particles to introduce hierarchical communicated pores, so that the sound barrier of the foamed concrete is improved, and the mechanical property of the concrete is not obviously reduced. Lignosulfonate can play a synergistic water reducing effect with the polycarboxylate superplasticizer in addition to an air entraining effect, so that the flowability of the foamed concrete is improved, and the foamed concrete sound barrier with good workability, high mechanical property and excellent sound insulation effect is further prepared.
本发明涉及水泥基建筑材料技术领域，尤其是涉及一种发泡混凝土声屏障及其制备方法，本发明以活性粉末混凝土体系为基础，采用高铝水泥、硅酸盐水泥、脱硫石膏、磷渣粉、改性沸石粉作为胶凝材料，水化进程相互配合，强度高，添加钢纤维提高发泡混凝土刚度和强度，改性沸石粉同样作为发气组分，配合木质素磺酸盐和毫米级SAP颗粒引入层级连通气孔，提高发泡混凝土声屏障，并不会明显降低混凝土力学性能，木质素磺酸盐除了引气作用还会与聚羧酸减水剂发挥协同减水效应，提高发泡混凝土流动性，进而制备得到和易性好，力学性能高，隔音效果优良的发泡混凝土声屏障。
The invention relates to the technical field of cement-based building materials, in particular to a foamed concrete sound barrier and a preparation method thereof.The foamed concrete sound barrier is based on an active powder concrete system, high-alumina cement, Portland cement, desulfurized gypsum, phosphorus slag powder and modified zeolite powder are adopted as cementing materials, hydration processes are matched with one another, the strength is high, and the sound barrier is good in sound barrier performance. The steel fiber is added to improve the rigidity and strength of the foamed concrete, and the modified zeolite powder is also used as a gas forming component and is matched with lignosulfonate and millimeter-scale SAP particles to introduce hierarchical communicated pores, so that the sound barrier of the foamed concrete is improved, and the mechanical property of the concrete is not obviously reduced. Lignosulfonate can play a synergistic water reducing effect with the polycarboxylate superplasticizer in addition to an air entraining effect, so that the flowability of the foamed concrete is improved, and the foamed concrete sound barrier with good workability, high mechanical property and excellent sound insulation effect is further prepared.
本发明涉及水泥基建筑材料技术领域，尤其是涉及一种发泡混凝土声屏障及其制备方法，本发明以活性粉末混凝土体系为基础，采用高铝水泥、硅酸盐水泥、脱硫石膏、磷渣粉、改性沸石粉作为胶凝材料，水化进程相互配合，强度高，添加钢纤维提高发泡混凝土刚度和强度，改性沸石粉同样作为发气组分，配合木质素磺酸盐和毫米级SAP颗粒引入层级连通气孔，提高发泡混凝土声屏障，并不会明显降低混凝土力学性能，木质素磺酸盐除了引气作用还会与聚羧酸减水剂发挥协同减水效应，提高发泡混凝土流动性，进而制备得到和易性好，力学性能高，隔音效果优良的发泡混凝土声屏障。
Foamed concrete sound barrier and preparation method thereof
一种发泡混凝土声屏障及其制备方法
CHEN BIN (Autor:in)
16.01.2024
Patent
Elektronische Ressource
Chinesisch
IPC:
C04B
Kalk
,
LIME
/
E01F
ADDITIONAL WORK, SUCH AS EQUIPPING ROADS OR THE CONSTRUCTION OF PLATFORMS, HELICOPTER LANDING STAGES, SIGNS, SNOW FENCES, OR THE LIKE
,
Zusätzliche Baumaßnahmen, wie die Ausstattung von Straßen oder die bauliche Ausbildung von Bahnsteigen, Landeplätzen für Hubschrauber, Wegweisern, Schneezäunen oder dgl.
| Europäisches Patentamt | 2021