A platform for research: civil engineering, architecture and urbanism
A platform for research: civil engineering, architecture and urbanism
Early-strength quick-setting type ultra-high performance concrete as well as preparation method and application thereof
The invention belongs to the technical field of concrete, and particularly relates to early-strength quick-setting type ultra-high performance concrete as well as a preparation method and application thereof. The ultra-high performance concrete provided by the invention comprises the following components: red mud, silica fume, cement, quartz sand, a water reducing agent, water and steel fibers. According to the invention, the red mud is added into the ultra-high performance concrete, and the red mud can be used for replacing a part of commercial accelerator or early strength agent gel materials without being subjected to calcination activation or dealkalization treatment. The method can effectively reduce the accumulation of the solid waste red mud in the refuse landfill, reduce the use amount of cement and other gel materials in the ultra-high performance concrete, reduce the emission and cost of CO2 in the preparation process of the ultra-high performance concrete, and promote the safe recycling of the red mud. The early-strength rapid-hardening type ultra-high performance concrete provided by the invention has the advantages of fast early strength development, high later strength and fast system compact structure formation, and can effectively inhibit alkali liquor leaching and radioactive radiation of red mud.
本发明属于混凝土技术领域，具体涉及一种早强速凝型超高性能混凝土及其制备方法和应用。本发明提供的超高性能混凝土的组分包括赤泥、硅灰、水泥、石英砂、减水剂、水和钢纤维。本发明将赤泥添加到超高性能混凝土中，无需对赤泥进行煅烧活化或脱碱处理，即可用于取代部分商用速凝剂或早强剂凝胶材料。本发明能有效减少固体废料赤泥在垃圾填埋场的堆积，减少超高性能混凝土中水泥等凝胶材料的用量，降低制备超高性能混凝土过程中CO2的排放量及成本，促进赤泥的安全回收利用。本发明提供的早强速凝型超高性能混凝土早期强度发展快，后期强度高，体系密实结构形成迅速，能有效抑制赤泥的碱液浸出和放射性辐射。
Early-strength quick-setting type ultra-high performance concrete as well as preparation method and application thereof
The invention belongs to the technical field of concrete, and particularly relates to early-strength quick-setting type ultra-high performance concrete as well as a preparation method and application thereof. The ultra-high performance concrete provided by the invention comprises the following components: red mud, silica fume, cement, quartz sand, a water reducing agent, water and steel fibers. According to the invention, the red mud is added into the ultra-high performance concrete, and the red mud can be used for replacing a part of commercial accelerator or early strength agent gel materials without being subjected to calcination activation or dealkalization treatment. The method can effectively reduce the accumulation of the solid waste red mud in the refuse landfill, reduce the use amount of cement and other gel materials in the ultra-high performance concrete, reduce the emission and cost of CO2 in the preparation process of the ultra-high performance concrete, and promote the safe recycling of the red mud. The early-strength rapid-hardening type ultra-high performance concrete provided by the invention has the advantages of fast early strength development, high later strength and fast system compact structure formation, and can effectively inhibit alkali liquor leaching and radioactive radiation of red mud.
本发明属于混凝土技术领域，具体涉及一种早强速凝型超高性能混凝土及其制备方法和应用。本发明提供的超高性能混凝土的组分包括赤泥、硅灰、水泥、石英砂、减水剂、水和钢纤维。本发明将赤泥添加到超高性能混凝土中，无需对赤泥进行煅烧活化或脱碱处理，即可用于取代部分商用速凝剂或早强剂凝胶材料。本发明能有效减少固体废料赤泥在垃圾填埋场的堆积，减少超高性能混凝土中水泥等凝胶材料的用量，降低制备超高性能混凝土过程中CO2的排放量及成本，促进赤泥的安全回收利用。本发明提供的早强速凝型超高性能混凝土早期强度发展快，后期强度高，体系密实结构形成迅速，能有效抑制赤泥的碱液浸出和放射性辐射。
Early-strength quick-setting type ultra-high performance concrete as well as preparation method and application thereof
一种早强速凝型超高性能混凝土及其制备方法和应用
HOU DONGSHUAI (author) / WANG XINPENG (author) / WU DI (author) / LI MENGMENG (author) / LI GUANNAN (author) / WANG PAN (author)
2022-04-15
Patent
Electronic Resource
Chinese
IPC:
C04B
Kalk
,
LIME
| European Patent Office | 2023
High-performance quick-setting early-strength concrete and preparation method thereof
| European Patent Office | 2022
| European Patent Office | 2022
| European Patent Office | 2025
Quick-setting early-strength concrete and preparation method thereof
| European Patent Office | 2023