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Hydrated calcium silicate early-strength agent doped with iron ions and preparation method thereof
The invention discloses a hydrated calcium silicate early-strength agent doped with iron ions and a preparation method. The hydrated calcium silicate early-strength agent comprises soluble calcium salt, soluble silicon salt, soluble iron salt, a dispersing agent, a complexing agent and water. The preparation method comprises the following steps: respectively preparing aqueous solutions from the soluble calcium salt, the soluble silicon salt and the soluble iron salt; adding the dispersing agent, water and a part of the complexing agent into a reaction container, and setting a preset reaction temperature and a preset stirring rate; adding the rest complexing agent into the aqueous solution of the soluble iron salt; and dropwise adding the soluble calcium salt solution, the soluble silicon salt solution and an iron salt complexing agent solution into the reaction container at the same time so as to obtain the hydrated calcium silicate early-strength agent doped with the iron ions after the reaction is finished. The morphology of hydrated calcium silicate is changed by doping iron ions, so the compressive strength of the mortar within 16 h can be obviously improved; and moreover, thepreparation method provided by the invention does not easily generate precipitate when the iron ions are doped, the stability of a suspension is not destroyed, and the early-strength agent is convenient to use.
本发明公开了一种掺杂有铁离子的水化硅酸钙早强剂及制备方法，水化硅酸钙早强剂包括：可溶性钙盐、可溶性硅盐、可溶性铁盐、分散剂、络合剂和水；制备方法包括：将可溶性钙盐、可溶性硅盐和可溶性铁盐分别配置成水溶液；将分散剂、水和部分络合剂添加到反应容器中，设置预设的反应温度和搅拌速率；将剩余部分的络合剂加入到可溶性铁盐水溶液中；向反应容器中同时滴加可溶性钙盐溶液、可溶性硅盐溶液和铁盐络合剂溶液，反应完成后，得到掺杂有铁离子的水化硅酸钙早强剂。本发明通过掺杂铁离子改变水化硅酸钙的形貌，可明显提高砂浆16h的抗压强度；且，本发明的制备方法在掺杂铁离子时不易产生沉淀，不会破坏悬浮液的稳定性，利于使用。
Hydrated calcium silicate early-strength agent doped with iron ions and preparation method thereof
The invention discloses a hydrated calcium silicate early-strength agent doped with iron ions and a preparation method. The hydrated calcium silicate early-strength agent comprises soluble calcium salt, soluble silicon salt, soluble iron salt, a dispersing agent, a complexing agent and water. The preparation method comprises the following steps: respectively preparing aqueous solutions from the soluble calcium salt, the soluble silicon salt and the soluble iron salt; adding the dispersing agent, water and a part of the complexing agent into a reaction container, and setting a preset reaction temperature and a preset stirring rate; adding the rest complexing agent into the aqueous solution of the soluble iron salt; and dropwise adding the soluble calcium salt solution, the soluble silicon salt solution and an iron salt complexing agent solution into the reaction container at the same time so as to obtain the hydrated calcium silicate early-strength agent doped with the iron ions after the reaction is finished. The morphology of hydrated calcium silicate is changed by doping iron ions, so the compressive strength of the mortar within 16 h can be obviously improved; and moreover, thepreparation method provided by the invention does not easily generate precipitate when the iron ions are doped, the stability of a suspension is not destroyed, and the early-strength agent is convenient to use.
本发明公开了一种掺杂有铁离子的水化硅酸钙早强剂及制备方法，水化硅酸钙早强剂包括：可溶性钙盐、可溶性硅盐、可溶性铁盐、分散剂、络合剂和水；制备方法包括：将可溶性钙盐、可溶性硅盐和可溶性铁盐分别配置成水溶液；将分散剂、水和部分络合剂添加到反应容器中，设置预设的反应温度和搅拌速率；将剩余部分的络合剂加入到可溶性铁盐水溶液中；向反应容器中同时滴加可溶性钙盐溶液、可溶性硅盐溶液和铁盐络合剂溶液，反应完成后，得到掺杂有铁离子的水化硅酸钙早强剂。本发明通过掺杂铁离子改变水化硅酸钙的形貌，可明显提高砂浆16h的抗压强度；且，本发明的制备方法在掺杂铁离子时不易产生沉淀，不会破坏悬浮液的稳定性，利于使用。
Hydrated calcium silicate early-strength agent doped with iron ions and preparation method thereof
一种掺杂有铁离子的水化硅酸钙早强剂及制备方法
ZHENG XINGUO (Autor:in) / YU PEIYUN (Autor:in) / ZENG ZHI (Autor:in) / HU JIANWEI (Autor:in) / LI SHUMING (Autor:in) / DONG QUANXIAO (Autor:in) / LIU JING (Autor:in) / CHENG GUANZHI (Autor:in) / PAN YONGJIAN (Autor:in) / CAI DEGOU (Autor:in)
07.08.2020
Patent
Elektronische Ressource
Chinesisch
IPC:
C04B
Kalk
,
LIME
Two-dimensional nano hydrated calcium silicate early strength agent and preparation method thereof
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