A platform for research: civil engineering, architecture and urbanism
A platform for research: civil engineering, architecture and urbanism
Delayed permeation type chloride ion curing agent with core-shell structure and preparation method of delayed permeation type chloride ion curing agent
The invention relates to a delayed permeation type chloride ion curing agent with a core-shell structure and a preparation method thereof. The curing agent is spherical and has the core-shell structure, the core is an aluminate cement hydrated product, and the shell wall is calcium alginate gel. The delayed permeation type core-shell structure chloride ion curing agent provided by the invention can remarkably improve the chloride ion in-situ curing capacity. The core-shell structure material is added into a cement-based material, chloride ions slowly permeate into the structure through a shell surface aqueous solution migration channel through water absorption swelling and react with an aluminate cement hydration product to form Friedel's salt, and long-acting curing of free chloride ions is achieved.
本发明涉及一种延迟渗透型核壳结构氯离子固化剂及其制备方法，所述固化剂为球形，具有核壳结构，核芯为铝酸盐水泥水化产物，壳壁为海藻酸钙凝胶。本发明提供的延迟渗透型核壳结构氯离子固化剂可以显著提升氯离子原位固化能力。所述核壳结构材料加入水泥基材料中，通过吸水溶胀，氯离子经壳表面水溶液迁移通道缓慢渗透至结构内部，与铝酸盐水泥水化产物反应，形成Friedel’s盐，实现对自由氯离子的长效固化。
Delayed permeation type chloride ion curing agent with core-shell structure and preparation method of delayed permeation type chloride ion curing agent
The invention relates to a delayed permeation type chloride ion curing agent with a core-shell structure and a preparation method thereof. The curing agent is spherical and has the core-shell structure, the core is an aluminate cement hydrated product, and the shell wall is calcium alginate gel. The delayed permeation type core-shell structure chloride ion curing agent provided by the invention can remarkably improve the chloride ion in-situ curing capacity. The core-shell structure material is added into a cement-based material, chloride ions slowly permeate into the structure through a shell surface aqueous solution migration channel through water absorption swelling and react with an aluminate cement hydration product to form Friedel's salt, and long-acting curing of free chloride ions is achieved.
本发明涉及一种延迟渗透型核壳结构氯离子固化剂及其制备方法，所述固化剂为球形，具有核壳结构，核芯为铝酸盐水泥水化产物，壳壁为海藻酸钙凝胶。本发明提供的延迟渗透型核壳结构氯离子固化剂可以显著提升氯离子原位固化能力。所述核壳结构材料加入水泥基材料中，通过吸水溶胀，氯离子经壳表面水溶液迁移通道缓慢渗透至结构内部，与铝酸盐水泥水化产物反应，形成Friedel’s盐，实现对自由氯离子的长效固化。
Delayed permeation type chloride ion curing agent with core-shell structure and preparation method of delayed permeation type chloride ion curing agent
一种延迟渗透型核壳结构氯离子固化剂及其制备方法
TAN HONGBO (author) / TAN ZHENGRI (author) / LYU ZHOULING (author) / LIU XIAOHAI (author) / MA BAOGUO (author) / LI XIANGGUO (author) / JIAN SHOUWEI (author) / HUANG JIAN (author)
2021-08-06
Patent
Electronic Resource
Chinese
IPC:
C04B
Kalk
,
LIME
Preparation process of high-strength double-permeation curing type concrete
| European Patent Office | 2020
| European Patent Office | 2022
Preparation method of concrete inner curing agent with core-shell structure
| European Patent Office | 2015
Preparation method of core-shell structure microgel concrete internal curing agent
| European Patent Office | 2022
Method for delayed curing agent hydration reaction and fluidized mud one-stop consolidating-curing
| European Patent Office | 2020