Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
Accelerating agent for sprayable ultra-high performance concrete in high altitude area and preparation of accelerating agent
The invention relates to the technical field of concrete accelerators, and particularly discloses a high-altitude area sprayable ultra-high performance concrete accelerator, which is prepared from the following raw materials in parts by mass: 30 to 60 parts of aluminum sulfate, 1 to 5 parts of magnesium sulfate, 1 to 2 parts of 3-hydroxy-3-carboxyl glutaric acid, 1 to 3 parts of N, N-diethylethanolamine, 1 to 2 parts of disodium ethylene diamine tetraacetate and 1 to 3 parts of oxidized chitosan. The composition comprises the following components in parts by weight: 5-10 parts of microcrystalline cellulose, 1-2 parts of amino-terminated polyamidoamine, 0.1-1 part of dibutyl phthalate and 0.1-1 part of hydroxyethyl cellulose. The invention further discloses a preparation method of the accelerator for the sprayable ultra-high performance concrete in the high altitude area. The cement is short in setting time and high in strength, the strength within one day can reach 14 MP or above, and the compressive strength ratio within 28 days can reach 119%; the concrete has the advantages of small stimulation to human bodies, safety and reliability, optimizes the construction environment, and can still play a quick-setting role when the environment temperature is relatively low (the lowest temperature is 0 DEG C).
本发明涉及混凝土速凝剂技术领域，具体公开了一种高海拔地区可喷射超高性能混凝土用速凝剂，其原料按质量份包括：硫酸铝30‑60份，硫酸镁1‑5份，3‑羟基‑3‑羧基戊二酸1‑2份，N,N‑二乙基乙醇胺1‑3份，乙二胺四乙酸二钠1‑2份，氧化壳聚糖1‑3份，微晶纤维素5‑10份，端氨基聚酰胺胺1‑2份，邻苯二甲酸二丁酯0.1‑1份，羟乙基纤维素0.1‑1份。本发明还公开了上述高海拔地区可喷射超高性能混凝土用速凝剂的制备方法。本发明凝结时间短，而且强度高，1天强度可达14MP以上，28天抗压强度比高可达119％；对人体刺激小，安全可靠，优化施工环境，在环境温度较低(最低0℃)时，仍可发挥速凝作用。
Accelerating agent for sprayable ultra-high performance concrete in high altitude area and preparation of accelerating agent
The invention relates to the technical field of concrete accelerators, and particularly discloses a high-altitude area sprayable ultra-high performance concrete accelerator, which is prepared from the following raw materials in parts by mass: 30 to 60 parts of aluminum sulfate, 1 to 5 parts of magnesium sulfate, 1 to 2 parts of 3-hydroxy-3-carboxyl glutaric acid, 1 to 3 parts of N, N-diethylethanolamine, 1 to 2 parts of disodium ethylene diamine tetraacetate and 1 to 3 parts of oxidized chitosan. The composition comprises the following components in parts by weight: 5-10 parts of microcrystalline cellulose, 1-2 parts of amino-terminated polyamidoamine, 0.1-1 part of dibutyl phthalate and 0.1-1 part of hydroxyethyl cellulose. The invention further discloses a preparation method of the accelerator for the sprayable ultra-high performance concrete in the high altitude area. The cement is short in setting time and high in strength, the strength within one day can reach 14 MP or above, and the compressive strength ratio within 28 days can reach 119%; the concrete has the advantages of small stimulation to human bodies, safety and reliability, optimizes the construction environment, and can still play a quick-setting role when the environment temperature is relatively low (the lowest temperature is 0 DEG C).
本发明涉及混凝土速凝剂技术领域，具体公开了一种高海拔地区可喷射超高性能混凝土用速凝剂，其原料按质量份包括：硫酸铝30‑60份，硫酸镁1‑5份，3‑羟基‑3‑羧基戊二酸1‑2份，N,N‑二乙基乙醇胺1‑3份，乙二胺四乙酸二钠1‑2份，氧化壳聚糖1‑3份，微晶纤维素5‑10份，端氨基聚酰胺胺1‑2份，邻苯二甲酸二丁酯0.1‑1份，羟乙基纤维素0.1‑1份。本发明还公开了上述高海拔地区可喷射超高性能混凝土用速凝剂的制备方法。本发明凝结时间短，而且强度高，1天强度可达14MP以上，28天抗压强度比高可达119％；对人体刺激小，安全可靠，优化施工环境，在环境温度较低(最低0℃)时，仍可发挥速凝作用。
Accelerating agent for sprayable ultra-high performance concrete in high altitude area and preparation of accelerating agent
一种高海拔地区可喷射超高性能混凝土用速凝剂及其制备
TAN XIANJUN (Autor:in) / CHEN WEIZHONG (Autor:in) / LIU JIN (Autor:in) / CHI JIANJUN (Autor:in) / SEO JEONG-SEON (Autor:in) / WANG DONG (Autor:in) / YANG FAN (Autor:in) / LIU YUBIAO (Autor:in) / CHEN PEISHUAI (Autor:in) / WANG ZHONGHAO (Autor:in)
21.01.2025
Patent
Elektronische Ressource
Chinesisch
IPC:
C04B
Kalk
,
LIME
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