Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
Anti-corrosion composite cement and preparation process thereof
The invention discloses an anti-corrosion composite cement, which is prepared from the following raw materials by weight: 500-700 parts of cement clinker, 100-150 parts of modified hydrotalcite, 35-50parts of modified PVA fiber, 200-300 parts of calcium carbonate, 100-150 parts of fly ash and 50-100 parts of a water reducing agent. The invention also discloses a preparation method of the anti-corrosion composite cement. The preparation method comprises the following steps of: stirring and mixing the cement clinker, modified PVA fiber, modified hydrotalcite, fly ash, calcium carbonate and water at a rotating speed of 800-1000r/min, and controlling the stirring time at 2h to obtain mortar, dehydrating, drying and crushing the prepared mortar until the fineness is 0.3-0.5mm, adding the waterreducing agent, and uniformly mixing the substances, thereby obtaining the anti-corrosion composite cement. The technical problems that the surface structure of the prepared magnesium-aluminum hydrotalcite is unstable, hydrogen bonds are easily generated to form agglomeration, the compatibility is poor when the magnesium-aluminum hydrotalcite is mixed with a matrix material, and the magnesium-aluminum hydrotalcite cannot be uniformly dispersed in the matrix are solved.
本发明公开一种抗腐蚀复合水泥，由如下重量份原料制成：500‑700份水泥熟料，100‑150份改性水滑石，35‑50份改性PVA纤维，200‑300份碳酸钙，100‑150份粉煤灰，50‑100份减水剂；本发明还公开了一种抗腐蚀复合水泥的制备方法；将水泥熟料、改性PVA纤维、改性水滑石、粉煤灰、碳酸钙和水在800‑1000r/min的转速下搅拌混合，控制搅拌时间为2h，制得砂浆，之后将制得砂浆脱水烘干粉碎至细度为0.3‑0.5mm，加入减水剂，混合均匀，制得抗腐蚀复合水泥；解决了制备出的镁铝水滑石表面结构不稳定，易产生氢键形成团聚，与基质材料混合时相容性差，在基体中无法均匀分散的技术问题。
Anti-corrosion composite cement and preparation process thereof
The invention discloses an anti-corrosion composite cement, which is prepared from the following raw materials by weight: 500-700 parts of cement clinker, 100-150 parts of modified hydrotalcite, 35-50parts of modified PVA fiber, 200-300 parts of calcium carbonate, 100-150 parts of fly ash and 50-100 parts of a water reducing agent. The invention also discloses a preparation method of the anti-corrosion composite cement. The preparation method comprises the following steps of: stirring and mixing the cement clinker, modified PVA fiber, modified hydrotalcite, fly ash, calcium carbonate and water at a rotating speed of 800-1000r/min, and controlling the stirring time at 2h to obtain mortar, dehydrating, drying and crushing the prepared mortar until the fineness is 0.3-0.5mm, adding the waterreducing agent, and uniformly mixing the substances, thereby obtaining the anti-corrosion composite cement. The technical problems that the surface structure of the prepared magnesium-aluminum hydrotalcite is unstable, hydrogen bonds are easily generated to form agglomeration, the compatibility is poor when the magnesium-aluminum hydrotalcite is mixed with a matrix material, and the magnesium-aluminum hydrotalcite cannot be uniformly dispersed in the matrix are solved.
本发明公开一种抗腐蚀复合水泥，由如下重量份原料制成：500‑700份水泥熟料，100‑150份改性水滑石，35‑50份改性PVA纤维，200‑300份碳酸钙，100‑150份粉煤灰，50‑100份减水剂；本发明还公开了一种抗腐蚀复合水泥的制备方法；将水泥熟料、改性PVA纤维、改性水滑石、粉煤灰、碳酸钙和水在800‑1000r/min的转速下搅拌混合，控制搅拌时间为2h，制得砂浆，之后将制得砂浆脱水烘干粉碎至细度为0.3‑0.5mm，加入减水剂，混合均匀，制得抗腐蚀复合水泥；解决了制备出的镁铝水滑石表面结构不稳定，易产生氢键形成团聚，与基质材料混合时相容性差，在基体中无法均匀分散的技术问题。
Anti-corrosion composite cement and preparation process thereof
一种抗腐蚀复合水泥及其制备工艺
HUANG ZHIFANG (Autor:in)
06.11.2020
Patent
Elektronische Ressource
Chinesisch
IPC:
C04B
Kalk
,
LIME
/
C01F
COMPOUNDS OF THE METALS BERYLLIUM, MAGNESIUM, ALUMINIUM, CALCIUM, STRONTIUM, BARIUM, RADIUM, THORIUM, OR OF THE RARE-EARTH METALS
,
Verbindungen der Metalle Beryllium, Magnesium, Aluminium, Calcium, Strontium, Barium, Radium, Thorium oder der Seltenen Erden
/
D01F
Chemische Gesichtspunkte bei der Herstellung von produzierten Filamenten, Zwirnen, Fasern, Borsten oder Bändern
,
CHEMICAL FEATURES IN THE MANUFACTURE OF MAN-MADE FILAMENTS, THREADS, FIBRES, BRISTLES OR RIBBONS
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