Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
Nano-suspension concrete early strength accelerator and preparation method thereof
The invention provides a nano-suspension concrete early strength accelerator which can be stably dispersed in an aqueous solution and is prepared from a thixotropic solution and a nano-calcium silicate suspension according to mass ratio of 1:4-9. The thixotropic solution is prepared from the following ingredients, by weight, 15-25% of soluble fluosilicate, 20-35% of soluble aluminium salt and the balance being water. The nano-calcium silicate suspension is prepared from the following ingredients, by weight, 5-20% of soluble silicate, 8-18% of soluble calcium salt, 3-10% of a high-molecular polymer dispersant and the balance being water. The invention also provides a preparation method of the early strength accelerator. On one hand, the early strength accelerator contains no chlorine salt and has no corrosion effect on steel bars in concrete. On the other hand, the early strength accelerator is a stable suspension system, is convenient to add and is easy to uniformly disperse during the preparation process of concrete; and the early strength accelerator can remarkably raise early strength of concrete, has an obvious early strength effect especially on concrete obtained by the use of high volume of mineral admixtures and is especially suitable for production of precast concrete components.
Nano-suspension concrete early strength accelerator and preparation method thereof
The invention provides a nano-suspension concrete early strength accelerator which can be stably dispersed in an aqueous solution and is prepared from a thixotropic solution and a nano-calcium silicate suspension according to mass ratio of 1:4-9. The thixotropic solution is prepared from the following ingredients, by weight, 15-25% of soluble fluosilicate, 20-35% of soluble aluminium salt and the balance being water. The nano-calcium silicate suspension is prepared from the following ingredients, by weight, 5-20% of soluble silicate, 8-18% of soluble calcium salt, 3-10% of a high-molecular polymer dispersant and the balance being water. The invention also provides a preparation method of the early strength accelerator. On one hand, the early strength accelerator contains no chlorine salt and has no corrosion effect on steel bars in concrete. On the other hand, the early strength accelerator is a stable suspension system, is convenient to add and is easy to uniformly disperse during the preparation process of concrete; and the early strength accelerator can remarkably raise early strength of concrete, has an obvious early strength effect especially on concrete obtained by the use of high volume of mineral admixtures and is especially suitable for production of precast concrete components.
Nano-suspension concrete early strength accelerator and preparation method thereof
ZHANG JIANGANG (Autor:in) / YANG YONG (Autor:in) / RAN QIANPING (Autor:in) / LIU JIAPING (Autor:in) / SHU XIN (Autor:in) / MAO YONGLIN (Autor:in)
29.07.2015
Patent
Elektronische Ressource
Englisch
IPC:
C04B
Kalk
,
LIME
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