Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
Controllable release water reducing agent of temperature-sensitive nano-microporous carrier with improved workability
The invention relates to a controllable release water reducing agent based on a peaceability-improved temperature-sensitive nano-microporous carrier, and the temperature-sensitive nano-microporous carrier is prepared from the following raw material components in parts by weight on the basis of 1000 parts of total weight: 280-320 parts of sodium silicate, 330-370 parts of a solvent, 80-100 parts of a gel hardening agent, 30-50 parts of an auxiliary agent and 15-25 parts of a co-initiator, and 180 to 220 parts of a heat sensitive polymer. According to the invention, green chemistry and nanotechnology are combined, and the temperature-sensitive nano-microporous carrier is introduced to realize controllable release of the water reducing agent, so that the workability of the recycled coarse aggregate concrete is improved. The special structure of the nano-microporous carrier and the modification mode of the functional group enable the nano-microporous carrier to bear the water reducing agent, and the flowability and slump of the concrete are accurately adjusted through controlled release of the water reducing agent. Meanwhile, aggregation and heat release of the concrete are avoided by regulating and controlling the hydration heat release process, and the pore structure of the cement paste is optimized, so that the mechanical property and the anti-freezing property of the recycled concrete are improved.
本发明涉及一种基于和易性改良的温度敏感性纳米微孔载体的可控释放减水剂，该温度敏感性纳米微孔载体以总重量份数1000份计，由以下重量份数的原料组分组成：硅酸钠280‑320份，溶剂330‑370份，凝胶硬化剂80‑100份，助剂30‑50份，助引发剂15‑25份，热敏性聚合物180‑220份。本发明通过结合绿色化学和纳米技术，引入温度敏感性纳米微孔载体，以实现对减水剂的可控释放，从而提升再生粗骨料混凝土和易性能。纳米微孔载体的特殊结构和功能基团修饰方式使其能够承载减水剂，通过减水剂的控制释放实现对混凝土流动性和坍落度的精确调节。同时，通过调控水化放热进程来避免混凝土聚集放热，有助于优化水泥浆体的孔隙结构，从而提升再生混凝土的力学性能和抗冻性能。
Controllable release water reducing agent of temperature-sensitive nano-microporous carrier with improved workability
The invention relates to a controllable release water reducing agent based on a peaceability-improved temperature-sensitive nano-microporous carrier, and the temperature-sensitive nano-microporous carrier is prepared from the following raw material components in parts by weight on the basis of 1000 parts of total weight: 280-320 parts of sodium silicate, 330-370 parts of a solvent, 80-100 parts of a gel hardening agent, 30-50 parts of an auxiliary agent and 15-25 parts of a co-initiator, and 180 to 220 parts of a heat sensitive polymer. According to the invention, green chemistry and nanotechnology are combined, and the temperature-sensitive nano-microporous carrier is introduced to realize controllable release of the water reducing agent, so that the workability of the recycled coarse aggregate concrete is improved. The special structure of the nano-microporous carrier and the modification mode of the functional group enable the nano-microporous carrier to bear the water reducing agent, and the flowability and slump of the concrete are accurately adjusted through controlled release of the water reducing agent. Meanwhile, aggregation and heat release of the concrete are avoided by regulating and controlling the hydration heat release process, and the pore structure of the cement paste is optimized, so that the mechanical property and the anti-freezing property of the recycled concrete are improved.
本发明涉及一种基于和易性改良的温度敏感性纳米微孔载体的可控释放减水剂，该温度敏感性纳米微孔载体以总重量份数1000份计，由以下重量份数的原料组分组成：硅酸钠280‑320份，溶剂330‑370份，凝胶硬化剂80‑100份，助剂30‑50份，助引发剂15‑25份，热敏性聚合物180‑220份。本发明通过结合绿色化学和纳米技术，引入温度敏感性纳米微孔载体，以实现对减水剂的可控释放，从而提升再生粗骨料混凝土和易性能。纳米微孔载体的特殊结构和功能基团修饰方式使其能够承载减水剂，通过减水剂的控制释放实现对混凝土流动性和坍落度的精确调节。同时，通过调控水化放热进程来避免混凝土聚集放热，有助于优化水泥浆体的孔隙结构，从而提升再生混凝土的力学性能和抗冻性能。
Controllable release water reducing agent of temperature-sensitive nano-microporous carrier with improved workability
一种和易性改良的温度敏感性纳米微孔载体的可控释放减水剂
DUAN ZHENHUA (Autor:in) / ZHANG WEI (Autor:in) / YANG WEI (Autor:in) / ZHAO WENJING (Autor:in)
21.06.2024
Patent
Elektronische Ressource
Chinesisch
IPC:
C04B
Kalk
,
LIME
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