Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
Accelerator for low-alkali sprayed concrete
The invention relates to the technical field of accelerators, and discloses an accelerator for low-alkali sprayed concrete, which is prepared by heating, mixing and reacting a material A and a material B. The material A is prepared from the following components in percentage by weight: 20-50% of sodium hydroxide, 15-40% of aluminum hydroxide and the balance of water; the material B is prepared from the following components in percentage by weight: 20-40% of fluoride, 40-80% of aluminum sulfate and the balance of water; the accelerator is prepared from a material A and a material B according to the weight percentage ratio of 1: (2.5-4), the aluminum hydroxide and the sodium hydroxide are mixed and reacted to obtain the material A, the fluoride and the aluminum sulfate are mixed to obtain the material B, and the material A and the material B are heated, mixed and reacted to obtain the accelerator, so that the initial setting time and the final setting time of the concrete can be effectively ensured under the condition of reducing the alkali content of the traditional accelerator, and the setting time is controlled within the national standard range; in the construction process, the springback amount is small, personnel and environment are friendly, and the product is free of layering and precipitation during storage and good in stability.
本发明涉及速凝剂技术领域，且公开了一种低碱喷射混凝土用速凝剂，包括由A料和B料加热混合反应而成速凝剂，具体如下：所述A料由以下按重量百分比配制而成：氢氧化钠20‑50％、氢氧化铝15‑40％，余量为水；所述B料由以下按重量百分比配制而成：氟化物20‑40％、硫酸铝40‑80％，余量为水；所述速凝剂由以下按重量百分比配制而成：A料：B料＝1：2.5‑4；本发明采用氢氧化铝与氢氧化钠混合反应得到A料，氟化物和硫酸铝混合得到B料，再将A料与B料加热混合反应获得速凝剂，使得在降低传统速凝剂碱含量的条件下，能够有效保证混凝土初凝时间和终凝时间，凝结时间控制在国家标准范围之内，施工过程中回弹量小，对人员环境友好，产品存放无分层和沉淀，稳定性好。
Accelerator for low-alkali sprayed concrete
The invention relates to the technical field of accelerators, and discloses an accelerator for low-alkali sprayed concrete, which is prepared by heating, mixing and reacting a material A and a material B. The material A is prepared from the following components in percentage by weight: 20-50% of sodium hydroxide, 15-40% of aluminum hydroxide and the balance of water; the material B is prepared from the following components in percentage by weight: 20-40% of fluoride, 40-80% of aluminum sulfate and the balance of water; the accelerator is prepared from a material A and a material B according to the weight percentage ratio of 1: (2.5-4), the aluminum hydroxide and the sodium hydroxide are mixed and reacted to obtain the material A, the fluoride and the aluminum sulfate are mixed to obtain the material B, and the material A and the material B are heated, mixed and reacted to obtain the accelerator, so that the initial setting time and the final setting time of the concrete can be effectively ensured under the condition of reducing the alkali content of the traditional accelerator, and the setting time is controlled within the national standard range; in the construction process, the springback amount is small, personnel and environment are friendly, and the product is free of layering and precipitation during storage and good in stability.
本发明涉及速凝剂技术领域，且公开了一种低碱喷射混凝土用速凝剂，包括由A料和B料加热混合反应而成速凝剂，具体如下：所述A料由以下按重量百分比配制而成：氢氧化钠20‑50％、氢氧化铝15‑40％，余量为水；所述B料由以下按重量百分比配制而成：氟化物20‑40％、硫酸铝40‑80％，余量为水；所述速凝剂由以下按重量百分比配制而成：A料：B料＝1：2.5‑4；本发明采用氢氧化铝与氢氧化钠混合反应得到A料，氟化物和硫酸铝混合得到B料，再将A料与B料加热混合反应获得速凝剂，使得在降低传统速凝剂碱含量的条件下，能够有效保证混凝土初凝时间和终凝时间，凝结时间控制在国家标准范围之内，施工过程中回弹量小，对人员环境友好，产品存放无分层和沉淀，稳定性好。
Accelerator for low-alkali sprayed concrete
一种低碱喷射混凝土用速凝剂
XU TAIXIANG (Autor:in) / LI JILONG (Autor:in) / ZHANG JINGUI (Autor:in) / CHEN XI (Autor:in) / XIA LIWEI (Autor:in)
26.01.2024
Patent
Elektronische Ressource
Chinesisch
IPC:
C04B
Kalk
,
LIME
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