A platform for research: civil engineering, architecture and urbanism
A platform for research: civil engineering, architecture and urbanism
High-performance concrete accelerator
The invention provides a high-performance concrete accelerator, and relates to the technical field of constructional engineering. The high-performance concrete accelerator specifically comprises 30 parts of a neutralizing agent, 15 parts of an auxiliary agent, 5 parts of an accelerant, 3 parts of a conditioning agent, 3 parts of a compounding agent and 50 parts of RO water, the neutralizing agent comprises sodium thiosulfate and sodium chromate, the molar mass ratio of the sodium thiosulfate to the sodium chromate is 2: 1, and the auxiliary agent comprises sodium bicarbonate and calcium silicate. The molar mass ratio of the sodium bicarbonate to the calcium silicate is 1: 3, the accelerant comprises calcium phosphate and dimethyl glycyl glycine, and the molar mass ratio of the calcium phosphate to the dimethyl glycyl glycine is 2: 1. According to the concrete accelerator, sodium thiosulfate is used as a main neutralizing agent, when the sodium thiosulfate is used, thiosulfate radicals can be separated from a prepared solution, and the thiosulfate radicals can be combined with calcium ions in an auxiliary agent to form a complex which is difficult to decompose, so that the solidification of concrete is accelerated, and the working and using efficiency of the concrete accelerator is improved.
本发明提供一种高性能混凝土速凝剂，涉及建筑工程技术领域。该高性能混凝土速凝剂，具体包括以下配方：中和剂30份，辅助剂15份，促进剂5份，调节剂3份，配合剂3份，RO水50份，所述中和剂包括硫代硫酸钠和铬酸钠，所述硫代硫酸钠和铬酸钠的摩尔质量比为2：1，所述辅助剂包括碳酸氢钠和硅酸钙，所述碳酸氢钠和硅酸钙的摩尔质量比为1：3，所述促进剂包括磷酸钙和二甲基乙二酰基甘氨酸，所述磷酸钙和二甲基乙二酰基甘氨酸的摩尔质量比为2：1。通过采用硫代硫酸钠作为主体的中和剂进行使用，硫代硫酸钠在进行使用时，制成溶液可分离出硫代硫酸根，硫代硫酸根可以和辅助剂中的钙离子结合形成难以分解的络合物，加快混凝土凝固，提升该速凝剂的工作使用效率。
High-performance concrete accelerator
The invention provides a high-performance concrete accelerator, and relates to the technical field of constructional engineering. The high-performance concrete accelerator specifically comprises 30 parts of a neutralizing agent, 15 parts of an auxiliary agent, 5 parts of an accelerant, 3 parts of a conditioning agent, 3 parts of a compounding agent and 50 parts of RO water, the neutralizing agent comprises sodium thiosulfate and sodium chromate, the molar mass ratio of the sodium thiosulfate to the sodium chromate is 2: 1, and the auxiliary agent comprises sodium bicarbonate and calcium silicate. The molar mass ratio of the sodium bicarbonate to the calcium silicate is 1: 3, the accelerant comprises calcium phosphate and dimethyl glycyl glycine, and the molar mass ratio of the calcium phosphate to the dimethyl glycyl glycine is 2: 1. According to the concrete accelerator, sodium thiosulfate is used as a main neutralizing agent, when the sodium thiosulfate is used, thiosulfate radicals can be separated from a prepared solution, and the thiosulfate radicals can be combined with calcium ions in an auxiliary agent to form a complex which is difficult to decompose, so that the solidification of concrete is accelerated, and the working and using efficiency of the concrete accelerator is improved.
本发明提供一种高性能混凝土速凝剂，涉及建筑工程技术领域。该高性能混凝土速凝剂，具体包括以下配方：中和剂30份，辅助剂15份，促进剂5份，调节剂3份，配合剂3份，RO水50份，所述中和剂包括硫代硫酸钠和铬酸钠，所述硫代硫酸钠和铬酸钠的摩尔质量比为2：1，所述辅助剂包括碳酸氢钠和硅酸钙，所述碳酸氢钠和硅酸钙的摩尔质量比为1：3，所述促进剂包括磷酸钙和二甲基乙二酰基甘氨酸，所述磷酸钙和二甲基乙二酰基甘氨酸的摩尔质量比为2：1。通过采用硫代硫酸钠作为主体的中和剂进行使用，硫代硫酸钠在进行使用时，制成溶液可分离出硫代硫酸根，硫代硫酸根可以和辅助剂中的钙离子结合形成难以分解的络合物，加快混凝土凝固，提升该速凝剂的工作使用效率。
High-performance concrete accelerator
一种高性能混凝土速凝剂
NIU YINSHENG (author) / YUAN BO (author) / GAO CAIZHEN (author) / NIU HOUPING (author) / YANG YONGZHEN (author) / WEI KANGKANG (author) / WANG ZHIKAI (author) / LIN YANGAO (author) / FAN JIANYU (author)
2023-08-08
Patent
Electronic Resource
Chinese
IPC:
C04B
Kalk
,
LIME
High-performance concrete accelerator and preparation method thereof
| European Patent Office | 2023