Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
Preparation method of anti-cracking additive for concrete
The invention discloses a preparation method of an anti-cracking additive for concrete. The preparation method comprises the following steps: step 1, preparing the following raw materials in parts byweight: 20-30 parts of hydrotalcite, 30-50 parts of modified metakaolin, 20-40 parts of fly ash, 10-15 parts of phosphogypsum, 2-5 parts of dialuminum hydrogen phosphate, 2-4 parts of aluminum potassium sulfate, 2-3 parts of alpha-Al2O3 nano powder, 0.1-1 part of sodium polyacrylate and 5-10 parts of basalt fiber; and 2, adding the hydrotalcite, modified metakaolin, fly ash, phosphogypsum, dialuminum hydrogen phosphate, aluminum potassium sulfate, sodium polyacrylate, alpha-Al2O3 nano powder and basalt fiber into a ball mill, and carrying out ball milling for 15-30min to prepare the concrete anti-cracking additive. When the additive is added into concrete, the adhesion, crack resistance and corrosion resistance of the concrete can be improved, and the service life of the concrete can be prolonged.
本发明公开了一用于混凝土防裂添加剂的制备方法，包括以下步骤：第一步、准备以下重量份的原料：水滑石20‑30份、改性偏高岭土30‑50份、粉煤灰20‑40份、磷石膏10‑15份、磷酸氢二铝2‑5份、硫酸铝钾2‑4份、α‑Al2O3纳米粉2‑3份、聚丙烯酸钠0.1‑1份和玄武岩纤维5‑10份；第二步、将水滑石、改性偏高岭土、粉煤灰、磷石膏、磷酸氢二铝、硫酸铝钾、聚丙烯酸钠、α‑Al2O3纳米粉和玄武岩纤维加入球磨机中，球磨15‑30min后，制得用于混凝土防裂添加剂。该添加剂添加至混凝土中，能提高混凝土的粘接性、抗裂性和抗腐蚀性，提高混凝土的使用寿命。
Preparation method of anti-cracking additive for concrete
The invention discloses a preparation method of an anti-cracking additive for concrete. The preparation method comprises the following steps: step 1, preparing the following raw materials in parts byweight: 20-30 parts of hydrotalcite, 30-50 parts of modified metakaolin, 20-40 parts of fly ash, 10-15 parts of phosphogypsum, 2-5 parts of dialuminum hydrogen phosphate, 2-4 parts of aluminum potassium sulfate, 2-3 parts of alpha-Al2O3 nano powder, 0.1-1 part of sodium polyacrylate and 5-10 parts of basalt fiber; and 2, adding the hydrotalcite, modified metakaolin, fly ash, phosphogypsum, dialuminum hydrogen phosphate, aluminum potassium sulfate, sodium polyacrylate, alpha-Al2O3 nano powder and basalt fiber into a ball mill, and carrying out ball milling for 15-30min to prepare the concrete anti-cracking additive. When the additive is added into concrete, the adhesion, crack resistance and corrosion resistance of the concrete can be improved, and the service life of the concrete can be prolonged.
本发明公开了一用于混凝土防裂添加剂的制备方法，包括以下步骤：第一步、准备以下重量份的原料：水滑石20‑30份、改性偏高岭土30‑50份、粉煤灰20‑40份、磷石膏10‑15份、磷酸氢二铝2‑5份、硫酸铝钾2‑4份、α‑Al2O3纳米粉2‑3份、聚丙烯酸钠0.1‑1份和玄武岩纤维5‑10份；第二步、将水滑石、改性偏高岭土、粉煤灰、磷石膏、磷酸氢二铝、硫酸铝钾、聚丙烯酸钠、α‑Al2O3纳米粉和玄武岩纤维加入球磨机中，球磨15‑30min后，制得用于混凝土防裂添加剂。该添加剂添加至混凝土中，能提高混凝土的粘接性、抗裂性和抗腐蚀性，提高混凝土的使用寿命。
Preparation method of anti-cracking additive for concrete
一种用于混凝土防裂添加剂的制备方法
CHEN GUIFENG (Autor:in)
29.01.2021
Patent
Elektronische Ressource
Chinesisch
IPC:
C04B
Kalk
,
LIME
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