Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
Densified silica fume composite admixture and application thereof in high-performance concrete
The invention provides a densified silica fume composite admixture and application thereof in high-performance concrete. The composite admixture is prepared from the following raw materials: densified silica fume, limestone, manganese slag and nickel slag. The application of the composite admixture in the high-performance concrete comprises the steps of 1) conducting powder grinding preparation of the composite admixture, specifically, weighing the raw materials in percentage by mass, and then inputting the raw materials into a grinding machine for powder grinding; and 2) transporting the composite admixture to a commercial mixing station through a storage tank, adding coarse and fine aggregate and a cementing material into a stirrer, and stirring to obtain a finished product. The invention has the following advantages: 1, the admixture grain composition is optimized, and the performance and the later strength of the concrete are effectively improved; 2, the silica fume is prepared into the composite admixture, so that the transportation is convenient; 3, the proportion of the admixture in the cementing material in the concrete is large, and the admixture can be accurately metered in the preparation process; and 4, the admixture can be uniformly dispersed in the concrete in the stirring process of preparing the concrete, so that the stable quality of the high-performance concrete is ensured.
本发明提供一种加密硅灰复合掺合料及其在高性能混凝土中的应用，所述复合掺合料的原料包括：加密硅灰、石灰石、锰渣、镍渣。复合掺合料在高性能混凝土中的应用，步骤如下：1)复合掺合料的粉磨制备：按质量百分比称量各原料，然后将原料输入磨机中进行粉磨；2)将复合掺合料通过储存罐运输到商混站后，往搅拌机中投入粗细骨料、胶凝材料进行搅拌，即得成品。本发明的优点：1.掺合料颗粒级配优化，有效改善混凝土的性能和后期强度；2.硅灰制备成复合掺合料，便于进行运输；3.掺合料在混凝土中胶凝材料的比例较大，制备过程中能够准确计量；4.掺合料在制备混凝土搅拌过程中，能够均匀分散在混凝土中，确保高性能混凝土质量稳定。
Densified silica fume composite admixture and application thereof in high-performance concrete
The invention provides a densified silica fume composite admixture and application thereof in high-performance concrete. The composite admixture is prepared from the following raw materials: densified silica fume, limestone, manganese slag and nickel slag. The application of the composite admixture in the high-performance concrete comprises the steps of 1) conducting powder grinding preparation of the composite admixture, specifically, weighing the raw materials in percentage by mass, and then inputting the raw materials into a grinding machine for powder grinding; and 2) transporting the composite admixture to a commercial mixing station through a storage tank, adding coarse and fine aggregate and a cementing material into a stirrer, and stirring to obtain a finished product. The invention has the following advantages: 1, the admixture grain composition is optimized, and the performance and the later strength of the concrete are effectively improved; 2, the silica fume is prepared into the composite admixture, so that the transportation is convenient; 3, the proportion of the admixture in the cementing material in the concrete is large, and the admixture can be accurately metered in the preparation process; and 4, the admixture can be uniformly dispersed in the concrete in the stirring process of preparing the concrete, so that the stable quality of the high-performance concrete is ensured.
本发明提供一种加密硅灰复合掺合料及其在高性能混凝土中的应用，所述复合掺合料的原料包括：加密硅灰、石灰石、锰渣、镍渣。复合掺合料在高性能混凝土中的应用，步骤如下：1)复合掺合料的粉磨制备：按质量百分比称量各原料，然后将原料输入磨机中进行粉磨；2)将复合掺合料通过储存罐运输到商混站后，往搅拌机中投入粗细骨料、胶凝材料进行搅拌，即得成品。本发明的优点：1.掺合料颗粒级配优化，有效改善混凝土的性能和后期强度；2.硅灰制备成复合掺合料，便于进行运输；3.掺合料在混凝土中胶凝材料的比例较大，制备过程中能够准确计量；4.掺合料在制备混凝土搅拌过程中，能够均匀分散在混凝土中，确保高性能混凝土质量稳定。
Densified silica fume composite admixture and application thereof in high-performance concrete
一种加密硅灰复合掺合料及其在高性能混凝土中的应用
JI WEIXING (Autor:in)
24.09.2021
Patent
Elektronische Ressource
Chinesisch
IPC:
C04B
Kalk
,
LIME
A Liquid Silica Fume Admixture for High Performance Concrete
| British Library Conference Proceedings | 1986
Densified silica fume: particle sizes and dispersion in concrete
| Online Contents | 2006
Reaction products of densified silica fume agglomerates in concrete
| Tema Archiv | 2004
Densified silica fume: particle sizes and dispersion in concrete
| British Library Online Contents | 2006
Densified silica fume: particle sizes and dispersion in concrete
| Online Contents | 2006