Highly thixotropic 3D printing concrete and manufacturing method therefor
AssigneesChina Tiesiju Civil Engineering Group Co., Ltd., Anhui Zhongtie Engineering Material Technology Co., Ltd., Central South University
InventorsJun Wu, Jianwei Peng, Hai Huang, Juan Chen, Qiang Yuan, Jie Tang, Jianan Yao, Zhiyong Wang, Jian Yu, Yang Liu
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Abstract
A highly thixotropic 3D printing concrete and a manufacturing method therefor are provided. The weight percentage of each component calculated per cube of concrete is: 35-40% of cement, 0.1-0.4% of polycarboxylate superplasticizer, 0.1-0.4% of polypropylene fiber, 1.0-3.0% of special thixotropic agent for 3D printing concrete, and 12.5-14.5% of water, and the remainder is sand.
Claims8
A highly thixotropic 3D printing concrete, based on a weight percentage of each component calculated per cube of concrete, comprising:
- 35-40% of cement;
- 0.1-0.4% of polycarboxylate superplasticizer;
- 0.1-0.4% of polypropylene fiber;
- 1.0-3.0% of a special thixotropic agent for 3D printing concrete, being composed of following raw materials in weight percentage:
- 92-98% of inorganic flocculant, being one of magnesium nitrate, iron nitrate, magnesium sulfate, and iron sulfate;
- 1-4% of organic polymer thixotropic early strength agent, being polyacrylamide;
- 1-4% of foam stabilizer, being one of calcium lignosulfonate, higher fatty alcohol derivatives, and alkylphenol ethylene oxide;
- and
- 100% of a sum of above components;
- 12.5-14.5% of water;
- and
- a remainder, being sand.
Dependencies are inferred from the claim text.