A platform for research: civil engineering, architecture and urbanism
A platform for research: civil engineering, architecture and urbanism
Multi-branched shrinkage reducing agent for ultra-high performance concrete and preparation method of multi-branched shrinkage reducing agent
The invention provides a multi-branched shrinkage reducing agent for ultra-high performance concrete, which is prepared from the following raw materials in parts by weight: 40 to 80 parts of double-end hydrogen-containing silicone oil, 2 to 15 parts of unsaturated monoepoxide, 10 to 40 parts of polyethylene glycol and 1 to 10 parts of dialkylamine. The invention also provides a preparation method of the multi-branched shrinkage reducing agent for the ultra-high performance concrete. The shrinkage reducing agent prepared by the method has a structure taking hydrophilic polyether as a center and oleophylic alkylamine silicone oil as a multi-branched structure, has relatively large molecular weight, can greatly reduce the surface tension of a capillary pore solution and effectively reduce the shrinkage of ultra-high performance concrete, and does not generate adverse effects on the performance of the concrete.
本发明提供一种超高性能混凝土用多支化减缩剂，以重量份计，其由以下原料制备得到：40‑80份的双端含氢硅油，2‑15份的不饱和单环氧化物，10‑40份的聚乙二醇，1‑10份的二烷基胺；本发明还提供一种超高性能混凝土用多支化减缩剂的制备方法；本发明制备的减缩剂具有以亲水聚醚为中心，亲油烷基胺硅油为多支化的结构，以及较大的分子量，能大幅降低毛细孔溶液的表面张力，有效减小超高性能混凝土的收缩，且不会对混凝土性能产生不利影响。
Multi-branched shrinkage reducing agent for ultra-high performance concrete and preparation method of multi-branched shrinkage reducing agent
The invention provides a multi-branched shrinkage reducing agent for ultra-high performance concrete, which is prepared from the following raw materials in parts by weight: 40 to 80 parts of double-end hydrogen-containing silicone oil, 2 to 15 parts of unsaturated monoepoxide, 10 to 40 parts of polyethylene glycol and 1 to 10 parts of dialkylamine. The invention also provides a preparation method of the multi-branched shrinkage reducing agent for the ultra-high performance concrete. The shrinkage reducing agent prepared by the method has a structure taking hydrophilic polyether as a center and oleophylic alkylamine silicone oil as a multi-branched structure, has relatively large molecular weight, can greatly reduce the surface tension of a capillary pore solution and effectively reduce the shrinkage of ultra-high performance concrete, and does not generate adverse effects on the performance of the concrete.
本发明提供一种超高性能混凝土用多支化减缩剂，以重量份计，其由以下原料制备得到：40‑80份的双端含氢硅油，2‑15份的不饱和单环氧化物，10‑40份的聚乙二醇，1‑10份的二烷基胺；本发明还提供一种超高性能混凝土用多支化减缩剂的制备方法；本发明制备的减缩剂具有以亲水聚醚为中心，亲油烷基胺硅油为多支化的结构，以及较大的分子量，能大幅降低毛细孔溶液的表面张力，有效减小超高性能混凝土的收缩，且不会对混凝土性能产生不利影响。
Multi-branched shrinkage reducing agent for ultra-high performance concrete and preparation method of multi-branched shrinkage reducing agent
一种超高性能混凝土用多支化减缩剂及其制备方法
WU YUSHENG (author) / HUANG ZHOU (author) / CHEN MEIHONG (author)
2023-04-28
Patent
Electronic Resource
Chinese
| European Patent Office | 2024
Concrete shrinkage reducing agent and preparation method thereof
| European Patent Office | 2023