Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
Thermosensitive concrete anti-freezing microsphere, anti-freezing concrete and preparation method of anti-freezing concrete
The invention relates to a thermo-sensitive concrete anti-freezing microsphere, anti-freezing concrete and a preparation method of the anti-freezing concrete. The phase transition point temperature of the microsphere is 25-35 DEG C; the microsphere is prepared from the following components in parts by weight: 4 to 6 parts of N-isopropylacrylamide monomer, 0.5 to 2.0 parts of tert-butyl acrylate monomer, 0.05 to 0.20 part of cross-linking agent, 45 to 55 parts of water, 3 to 5 parts of emulsifier, 120 to 200 parts of solvent and 0.3 to 0.4 part of initiator. Compared with the prior art, expansion pressure and seepage pressure generated by water freezing in the freezing and thawing process are relieved, the temperature can be responded in time, the water absorption rate and the phase transition point temperature are adjustable, the freezing and thawing damage resistance of the concrete is remarkably improved, and the anti-freezing requirement of the concrete in various freezing and thawing environments is met.
本发明涉及一种温敏性混凝土抗冻微球和抗冻混凝土及其制备方法，该微球的相转变点温度为25‑35℃；所述微球包括以下重量份组分：N‑异丙基丙烯酰胺单体4‑6份、丙烯酸叔丁酯单体0.5‑2.0份、交联剂0.05‑0.20份、水45‑55份、乳化剂3‑5份、溶剂120‑200份和引发剂0.3‑0.4份。与现有技术相比，本发明缓解冻融过程中水结冰产生的膨胀压力和渗透压力，并且能够对温度做出及时响应，吸水倍率和相转变点温度可调，显著提高混凝土的抗冻融破坏能力，满足多种冻融环境中混凝土的抗冻需求。
Thermosensitive concrete anti-freezing microsphere, anti-freezing concrete and preparation method of anti-freezing concrete
The invention relates to a thermo-sensitive concrete anti-freezing microsphere, anti-freezing concrete and a preparation method of the anti-freezing concrete. The phase transition point temperature of the microsphere is 25-35 DEG C; the microsphere is prepared from the following components in parts by weight: 4 to 6 parts of N-isopropylacrylamide monomer, 0.5 to 2.0 parts of tert-butyl acrylate monomer, 0.05 to 0.20 part of cross-linking agent, 45 to 55 parts of water, 3 to 5 parts of emulsifier, 120 to 200 parts of solvent and 0.3 to 0.4 part of initiator. Compared with the prior art, expansion pressure and seepage pressure generated by water freezing in the freezing and thawing process are relieved, the temperature can be responded in time, the water absorption rate and the phase transition point temperature are adjustable, the freezing and thawing damage resistance of the concrete is remarkably improved, and the anti-freezing requirement of the concrete in various freezing and thawing environments is met.
本发明涉及一种温敏性混凝土抗冻微球和抗冻混凝土及其制备方法，该微球的相转变点温度为25‑35℃；所述微球包括以下重量份组分：N‑异丙基丙烯酰胺单体4‑6份、丙烯酸叔丁酯单体0.5‑2.0份、交联剂0.05‑0.20份、水45‑55份、乳化剂3‑5份、溶剂120‑200份和引发剂0.3‑0.4份。与现有技术相比，本发明缓解冻融过程中水结冰产生的膨胀压力和渗透压力，并且能够对温度做出及时响应，吸水倍率和相转变点温度可调，显著提高混凝土的抗冻融破坏能力，满足多种冻融环境中混凝土的抗冻需求。
Thermosensitive concrete anti-freezing microsphere, anti-freezing concrete and preparation method of anti-freezing concrete
一种温敏性混凝土抗冻微球和抗冻混凝土及其制备方法
WU KAI (Autor:in) / WANG QI (Autor:in) / XU LINGLIN (Autor:in) / SONG YILUN (Autor:in) / GUO JUNYUAN (Autor:in) / YANG ZHENGHONG (Autor:in) / LONG JIANGFENG (Autor:in) / SUN ZIXUAN (Autor:in)
12.12.2023
Patent
Elektronische Ressource
Chinesisch
IPC:
C04B
Kalk
,
LIME
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