A platform for research: civil engineering, architecture and urbanism
A platform for research: civil engineering, architecture and urbanism
Ultra-high performance concrete admixture as well as preparation method and application thereof
The invention belongs to the technical field of chemical building materials, and particularly relates to an ultra-high performance concrete admixture as well as a preparation method and application thereof. The admixture is in a dry powder state and comprises an auxiliary material and a solid polycarboxylate superplasticizer in a mass ratio of (5-20): (80-95), and the auxiliary material comprises the following components in parts by mass: 5-10 parts of a co-dispersant, 1-5 parts of silicon dioxide, 0.5-1 part of inorganic carbonate, 1-5 parts of inorganic silicate and 0.05-0.5 part of a defoaming agent. The admixture has the characteristics of low mixing amount, viscosity reduction, high early strength and the like, is mixed into an ultra-high performance concrete premix in a powder state, not only can obviously reduce the viscosity of the ultra-high performance concrete, but also can obviously improve the early strength of the ultra-high performance concrete, and has no negative influence on the later mechanical properties of the ultra-high performance concrete.
本发明属于化学建材技术领域，具体涉及一种超高性能混凝土用外加剂及其制备方法与应用。该外加剂为干粉状态，包括质量比为(5‑20)：(80‑95)的辅料和固体聚羧酸减水剂，所述辅料包括按质量份计的如下组分：共分散剂5‑10份，二氧化硅1‑5份，无机碳酸盐0.5‑1份，无机硅酸盐1‑5份，消泡剂0.05～0.5份。该外加剂具有掺量低、降粘和高早强等特性，粉体状态掺入超高性能混凝土预混料中，不仅能够明显降低超高性能混凝土的粘度，而且能够显著提高超高性能混凝土的早期强度，并对超高性能混凝土的后期力学性能无负面影响。
Ultra-high performance concrete admixture as well as preparation method and application thereof
The invention belongs to the technical field of chemical building materials, and particularly relates to an ultra-high performance concrete admixture as well as a preparation method and application thereof. The admixture is in a dry powder state and comprises an auxiliary material and a solid polycarboxylate superplasticizer in a mass ratio of (5-20): (80-95), and the auxiliary material comprises the following components in parts by mass: 5-10 parts of a co-dispersant, 1-5 parts of silicon dioxide, 0.5-1 part of inorganic carbonate, 1-5 parts of inorganic silicate and 0.05-0.5 part of a defoaming agent. The admixture has the characteristics of low mixing amount, viscosity reduction, high early strength and the like, is mixed into an ultra-high performance concrete premix in a powder state, not only can obviously reduce the viscosity of the ultra-high performance concrete, but also can obviously improve the early strength of the ultra-high performance concrete, and has no negative influence on the later mechanical properties of the ultra-high performance concrete.
本发明属于化学建材技术领域，具体涉及一种超高性能混凝土用外加剂及其制备方法与应用。该外加剂为干粉状态，包括质量比为(5‑20)：(80‑95)的辅料和固体聚羧酸减水剂，所述辅料包括按质量份计的如下组分：共分散剂5‑10份，二氧化硅1‑5份，无机碳酸盐0.5‑1份，无机硅酸盐1‑5份，消泡剂0.05～0.5份。该外加剂具有掺量低、降粘和高早强等特性，粉体状态掺入超高性能混凝土预混料中，不仅能够明显降低超高性能混凝土的粘度，而且能够显著提高超高性能混凝土的早期强度，并对超高性能混凝土的后期力学性能无负面影响。
Ultra-high performance concrete admixture as well as preparation method and application thereof
一种超高性能混凝土用外加剂及其制备方法与应用
2024-12-20
Patent
Electronic Resource
Chinese
IPC:
C04B
Kalk
,
LIME
Ultra-high performance concrete admixture as well as preparation method and application thereof
| European Patent Office | 2024
Mineral admixture for ultra-high performance concrete and preparation method thereof
| European Patent Office | 2024
UHPC (Ultra High Performance Concrete) rapid fluidization admixture and preparation method thereof
| European Patent Office | 2024
Concrete admixture as well as preparation method and application thereof
| European Patent Office | 2024