一种铁、铝次第溶出的矿物掺合料及其制备工艺
By encapsulating aluminum-rich iron-containing admixtures with modified urea-formaldehyde resin to form a core-shell structure, the problem of rapid dissolution of iron and aluminum in the early stage of mineral admixtures is solved, and the stability of cement system at different hydration ages is achieved, especially improving corrosion resistance in marine environments.
CN116655275BActive Publication Date: 2026-07-17WUHAN UNIV OF TECH
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Patents(China)
- Current Assignee / Owner
- WUHAN UNIV OF TECH
- Filing Date
- 2023-06-28
- Publication Date
- 2026-07-17
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Figure CN116655275B_ABST
Abstract
本发明涉及一种铁、铝次第溶出的矿物掺合料及其制备工艺，所述矿物掺合料包括由芯材和壁材组成的核壳结构；按质量份数计，所述芯材的原料包括如下组分：富铝含铁掺合料100～1000份，固化剂0.01～6份；所述壁材的原料包括如下组分：脲醛树脂1～60份，改性剂0.01～10份。本发明通过改性脲醛树脂包裹富铝含铁掺合料，可促使铁铝元素次第溶出，使得水泥体系不同水化龄期均有稳定的铝源，以便有充足的铝均匀地固溶进各水化产物中，在提高强度的同时优化抗侵蚀性能，从而得到高抗蚀水泥。
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