Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
Anti-cracking alkali slag recycled concrete and preparation method thereof
The invention discloses anti-cracking alkali slag recycled concrete and a preparation method thereof. According to the invention, sodium sulfate, sodium silicate and cement are used as composite excitants, such that advantages of cracking resistance, good strength, and the like are provided. The recycled coarse aggregate with the saturated surface dry can return water to achieve an internal curing effect, so that the shrinkage of the material is reduced, and the anti-cracking performance is improved; magnesium oxide is adopted to compensate shrinkage of the alkali slag concrete, and cracking is further reduced; by adopting the PTB emulsion, the development of micro-cracks in the material can be inhibited, and the waterproof performance and the workability are relatively good; and the used slag and recycled aggregate are wastes which are recycled, so that garbage landfill can be reduced, and environmental management and protection are facilitated. The anti-cracking alkali slag recycled concrete has good economic, social and environment-friendly benefits and is suitable for large-scale popularization and application.
本发明公开了一种抗裂型碱矿渣再生混凝土及其制备方法。本发明采用硫酸钠、硅酸钠和水泥作为复合激发剂，具有不易开裂和强度好等优点；采用饱和面干的再生粗骨料可返水起到内养护作用，减小材料的收缩，提高抗裂性能；采用氧化镁能够补偿碱矿渣混凝土的收缩，进一步减少开裂；采用PTB乳液可抑制材料内部微裂缝的发展，且具有较好的防水性和工作性；所使用的矿渣和再生骨料均为废物再利用，可减少垃圾填埋，有利于环境治理与保护。本发明具有较好的经济、社会和环保效益，适合大规模推广应用。
Anti-cracking alkali slag recycled concrete and preparation method thereof
The invention discloses anti-cracking alkali slag recycled concrete and a preparation method thereof. According to the invention, sodium sulfate, sodium silicate and cement are used as composite excitants, such that advantages of cracking resistance, good strength, and the like are provided. The recycled coarse aggregate with the saturated surface dry can return water to achieve an internal curing effect, so that the shrinkage of the material is reduced, and the anti-cracking performance is improved; magnesium oxide is adopted to compensate shrinkage of the alkali slag concrete, and cracking is further reduced; by adopting the PTB emulsion, the development of micro-cracks in the material can be inhibited, and the waterproof performance and the workability are relatively good; and the used slag and recycled aggregate are wastes which are recycled, so that garbage landfill can be reduced, and environmental management and protection are facilitated. The anti-cracking alkali slag recycled concrete has good economic, social and environment-friendly benefits and is suitable for large-scale popularization and application.
本发明公开了一种抗裂型碱矿渣再生混凝土及其制备方法。本发明采用硫酸钠、硅酸钠和水泥作为复合激发剂，具有不易开裂和强度好等优点；采用饱和面干的再生粗骨料可返水起到内养护作用，减小材料的收缩，提高抗裂性能；采用氧化镁能够补偿碱矿渣混凝土的收缩，进一步减少开裂；采用PTB乳液可抑制材料内部微裂缝的发展，且具有较好的防水性和工作性；所使用的矿渣和再生骨料均为废物再利用，可减少垃圾填埋，有利于环境治理与保护。本发明具有较好的经济、社会和环保效益，适合大规模推广应用。
Anti-cracking alkali slag recycled concrete and preparation method thereof
一种抗裂型碱矿渣再生混凝土及其制备方法
ZHENG XIAOYAN (Autor:in) / JI TAO (Autor:in) / ZHANG BINBIN (Autor:in) / YOU SHENGJIE (Autor:in)
06.04.2021
Patent
Elektronische Ressource
Chinesisch
IPC:
C04B
Kalk
,
LIME
Alkali slag recycled aggregate concrete and preparation method thereof
| Europäisches Patentamt | 2023
Anti-cracking recycled concrete and preparation method thereof
| Europäisches Patentamt | 2021
Anti-cracking recycled concrete and preparation method thereof
| Europäisches Patentamt | 2020
| Europäisches Patentamt | 2024
Anti-cracking recycled concrete and preparation method thereof
| Europäisches Patentamt | 2021