Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
Liquid accelerator and preparation method thereof
The invention discloses a liquid accelerator and a preparation method, and the liquid accelerator comprises the following components by weight percentage: 45%-55% of an aluminum triformate system and the balance of water. The formate radicals generated by the aluminum tricarboxylate system can be rapidly diffused and permeated into hydration layers of tricalcium silicate and dicalcium silicate in the concrete, so that dissociation of calcium hydroxide and calcium silicate in the concrete is accelerated. The formate can form an analogue of trisulfide type hydrated calcium sulphoaluminate (AFt) or monosulfide type hydrated calcium aluminate (AFm) with minerals in the concrete, so that the setting time of the concrete can be shortened, and the early strength of the concrete is improved.
本发明公开了一种液体速凝剂及制备方法，按重量百分比计，该液体速凝剂包括三甲酸铝体系45％～55％，余量为水。通过三甲酸铝体系产生的甲酸根能够快速扩散渗透至混凝土中的硅酸三钙和硅酸二钙的水化层，以加速混凝土中的氢氧化钙和硅酸钙的离解。并且甲酸根能够与混凝土中的矿物质形成三硫型水化硫铝酸钙(AFt)或者单硫型水化铝酸钙(AFm)的相似物，能够缩短混凝土的凝结时间，从而提高混凝土的早期强度。
Liquid accelerator and preparation method thereof
The invention discloses a liquid accelerator and a preparation method, and the liquid accelerator comprises the following components by weight percentage: 45%-55% of an aluminum triformate system and the balance of water. The formate radicals generated by the aluminum tricarboxylate system can be rapidly diffused and permeated into hydration layers of tricalcium silicate and dicalcium silicate in the concrete, so that dissociation of calcium hydroxide and calcium silicate in the concrete is accelerated. The formate can form an analogue of trisulfide type hydrated calcium sulphoaluminate (AFt) or monosulfide type hydrated calcium aluminate (AFm) with minerals in the concrete, so that the setting time of the concrete can be shortened, and the early strength of the concrete is improved.
本发明公开了一种液体速凝剂及制备方法，按重量百分比计，该液体速凝剂包括三甲酸铝体系45％～55％，余量为水。通过三甲酸铝体系产生的甲酸根能够快速扩散渗透至混凝土中的硅酸三钙和硅酸二钙的水化层，以加速混凝土中的氢氧化钙和硅酸钙的离解。并且甲酸根能够与混凝土中的矿物质形成三硫型水化硫铝酸钙(AFt)或者单硫型水化铝酸钙(AFm)的相似物，能够缩短混凝土的凝结时间，从而提高混凝土的早期强度。
Liquid accelerator and preparation method thereof
一种液体速凝剂及制备方法
YANG YINGGANG (Autor:in) / LIU BOBO (Autor:in)
06.04.2021
Patent
Elektronische Ressource
Chinesisch
IPC:
C04B
Kalk
,
LIME
Alkaline liquid accelerator and preparation method thereof
| Europäisches Patentamt | 2021