Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
Admixture for tubular pile concrete and application thereof
The invention belongs to the field of building materials, and particularly relates to an admixture for tubular pile concrete and application of the admixture. The invention discloses an admixture for tubular pile concrete. The admixture comprises shale slag, siliceous machine-made sand, fluorite, molasses, glass fibers and sodium lignin sulfonate. Wherein the SiO2 content of the shale slag is greater than or equal to 93wt%; the ignition loss is less than or equal to 1wt%; the volcanic ash activity index of the shale slag is greater than or equal to 68%. The shale slag ore and siliceous machine-made sand double-doped raw materials are ground to prepare the concrete admixture for the PHC pipe pile, the concrete admixture is used for preparing the PHC pipe pile, and the requirements for the performance such as the strength of the PHC pipe pile concrete can be met; and traditional grinding fine sand is replaced, the production cost of the PHC pipe pile is saved, and resource utilization of the shale slag ore and the siliceous machine-made sand is achieved.
本发明属于建筑材料领域，具体涉及一种管桩混凝土用掺合料及其应用。管桩混凝土用掺合料，包括组分页岩渣、硅质机制砂、萤石、糖蜜、玻璃纤维、木质素磺酸钠；其中页岩渣的SiO2含量≥93wt％；烧失量≤1wt％；所述页岩渣的火山灰活性指数≥68％。本发明采用页岩渣矿与硅质机制砂双掺原料粉磨制备得到PHC管桩用混凝土掺合料，采用该混凝土掺合料制备PHC管桩，可以在满足PHC管桩混凝土强度等性能的要求下；替代传统磨细砂，节省PHC管桩的生产成本，实现页岩渣矿和硅质机制砂的资源化利用。
Admixture for tubular pile concrete and application thereof
The invention belongs to the field of building materials, and particularly relates to an admixture for tubular pile concrete and application of the admixture. The invention discloses an admixture for tubular pile concrete. The admixture comprises shale slag, siliceous machine-made sand, fluorite, molasses, glass fibers and sodium lignin sulfonate. Wherein the SiO2 content of the shale slag is greater than or equal to 93wt%; the ignition loss is less than or equal to 1wt%; the volcanic ash activity index of the shale slag is greater than or equal to 68%. The shale slag ore and siliceous machine-made sand double-doped raw materials are ground to prepare the concrete admixture for the PHC pipe pile, the concrete admixture is used for preparing the PHC pipe pile, and the requirements for the performance such as the strength of the PHC pipe pile concrete can be met; and traditional grinding fine sand is replaced, the production cost of the PHC pipe pile is saved, and resource utilization of the shale slag ore and the siliceous machine-made sand is achieved.
本发明属于建筑材料领域，具体涉及一种管桩混凝土用掺合料及其应用。管桩混凝土用掺合料，包括组分页岩渣、硅质机制砂、萤石、糖蜜、玻璃纤维、木质素磺酸钠；其中页岩渣的SiO2含量≥93wt％；烧失量≤1wt％；所述页岩渣的火山灰活性指数≥68％。本发明采用页岩渣矿与硅质机制砂双掺原料粉磨制备得到PHC管桩用混凝土掺合料，采用该混凝土掺合料制备PHC管桩，可以在满足PHC管桩混凝土强度等性能的要求下；替代传统磨细砂，节省PHC管桩的生产成本，实现页岩渣矿和硅质机制砂的资源化利用。
Admixture for tubular pile concrete and application thereof
一种管桩混凝土用掺合料及其应用
YAN BINGTU (Autor:in) / TU BOTAO (Autor:in)
14.07.2023
Patent
Elektronische Ressource
Chinesisch
IPC:
C04B
Kalk
,
LIME
Preparation method of steam-curing-free mineral admixture for tubular pile
| Europäisches Patentamt | 2023