Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
Anti-erosion concrete admixture and preparation method thereof
The invention discloses an anti-erosion concrete admixture and a preparation method thereof, belonging to the technical field of building materials. The concrete admixture is prepared from 30-50 parts of fly ash, 10-20 parts of superfine slag powder, 5-10 parts of a modified expanding agent, 5-10 parts of a water reducing agent and 3-8 parts of a grinding aid component. According to the invention, erosion resistance is realized through two dimensions; firstly, the fly ash and the superfine slag powder are added, so formation of sulfate erosion products is effectively prevented from a chemical level; secondly, fine gaps of a cement material are fully filled with the expanding agent and other components, so the compactness of the material is increased, and the overall strength of the material is improved; and the superfine slag powder and the modified expanding agent cooperate with each other, so the sulfate attack resistance of the material is jointly improved. The additive is low in addition amount; the preparation method is simple; a test piece still meets use requirement after being eroded by high-concentration sulfate for 120 days; and thus, the additive has wide market prospects.
本发明公开一种抗侵蚀的混凝土外加剂及其制备方法，属于建筑材料技术领域。本发明混凝土外加剂是由粉煤灰30‑50份、超细矿渣微粉10‑20份、改性膨胀剂5‑10份、减水剂5‑10份、助磨组分3‑8份制备而成。本发明通过两个维度实现抗侵蚀，首先本发明添加粉煤灰、超细矿渣微粉，非常有效的从化学层面阻止硫酸盐侵蚀产物的形成。其次，通过膨胀剂等成分充分填充水泥材料的细小空隙，增加材料密实度，提升整体强度。超细矿渣微粉和改性膨胀剂，两者协同，共同提升了材料的抗硫酸盐侵蚀能力。本发明添加量低，制备方法简单，试件在高浓度硫酸盐侵蚀120天后，仍然满足使用需求，具有广阔的市场前景。
Anti-erosion concrete admixture and preparation method thereof
The invention discloses an anti-erosion concrete admixture and a preparation method thereof, belonging to the technical field of building materials. The concrete admixture is prepared from 30-50 parts of fly ash, 10-20 parts of superfine slag powder, 5-10 parts of a modified expanding agent, 5-10 parts of a water reducing agent and 3-8 parts of a grinding aid component. According to the invention, erosion resistance is realized through two dimensions; firstly, the fly ash and the superfine slag powder are added, so formation of sulfate erosion products is effectively prevented from a chemical level; secondly, fine gaps of a cement material are fully filled with the expanding agent and other components, so the compactness of the material is increased, and the overall strength of the material is improved; and the superfine slag powder and the modified expanding agent cooperate with each other, so the sulfate attack resistance of the material is jointly improved. The additive is low in addition amount; the preparation method is simple; a test piece still meets use requirement after being eroded by high-concentration sulfate for 120 days; and thus, the additive has wide market prospects.
本发明公开一种抗侵蚀的混凝土外加剂及其制备方法，属于建筑材料技术领域。本发明混凝土外加剂是由粉煤灰30‑50份、超细矿渣微粉10‑20份、改性膨胀剂5‑10份、减水剂5‑10份、助磨组分3‑8份制备而成。本发明通过两个维度实现抗侵蚀，首先本发明添加粉煤灰、超细矿渣微粉，非常有效的从化学层面阻止硫酸盐侵蚀产物的形成。其次，通过膨胀剂等成分充分填充水泥材料的细小空隙，增加材料密实度，提升整体强度。超细矿渣微粉和改性膨胀剂，两者协同，共同提升了材料的抗硫酸盐侵蚀能力。本发明添加量低，制备方法简单，试件在高浓度硫酸盐侵蚀120天后，仍然满足使用需求，具有广阔的市场前景。
Anti-erosion concrete admixture and preparation method thereof
一种抗侵蚀的混凝土外加剂及其制备方法
KUANG LIJUN (Autor:in) / JING FULEI (Autor:in)
28.09.2021
Patent
Elektronische Ressource
Chinesisch
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