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A platform for research: civil engineering, architecture and urbanism
Cold region roadbed anti-freezing filler and preparation method thereof
The invention discloses a cold region roadbed anti-freezing filler and a preparation method thereof, and the cold region roadbed anti-freezing filler comprises shell-making coal-fired waste residue, fly ash, coarse aggregate, fine aggregate, cement, a curing agent and a polyurethane admixture. After the coal-fired waste residue is subjected to glycidyl ester epoxy resin shell making, the surface is coated with a layer of epoxy resin thin shell, and the strength and the anti-freezing capacity of the coal-fired waste residue are improved. The anti-freezing filler is prepared by mixing the shell-making waste residues with the fly ash, the coarse aggregate, the fine aggregate, the cement, the curing agent, the polyurethane admixture and the like, and the anti-freezing filler has good water stability, anti-freezing capability, strength and other mechanical properties and can improve the freeze-thaw durability of the subgrade structure in the cold region. According to the technical scheme, the roadbed filler with the coal-fired waste residues as the main material and the epoxy resin shell making as the main technology, the problems of mechanical property degradation, frost heaving and thaw collapse caused by insufficient filler stability and durability of the roadbed structure in the cold region are solved, and frost damage prevention and control of the roadbed structure in the cold region are achieved.
本发明公开了一种寒区路基防冻填料及制备方法，所述寒区路基防冻填料，包括造壳燃煤废渣、粉煤灰、粗集料、细集料、水泥、固化剂和聚氨酯类外加剂。燃煤废渣经过缩水甘油酯类环氧树脂造壳后，表面包裹一层环氧树脂薄壳，提高燃煤废渣强度和抗冻能力。造壳后废渣与粉煤灰、粗集料、细集料、水泥、固化剂和聚氨酯类外加剂等混合制备成防冻填料，防冻填料具备良好的水分稳定性、防冻能力及强度等力学性能，可提高寒区路基结构的冻融耐久性。本发明实现一种以燃煤废渣为主要材料的路基填料，以环氧树脂造壳为主要技术的方案，解决寒区路基结构因填料稳定性及耐久性不足而导致力学性能劣化、冻胀融沉问题，实现寒区路基结构的冻害防控。
Cold region roadbed anti-freezing filler and preparation method thereof
The invention discloses a cold region roadbed anti-freezing filler and a preparation method thereof, and the cold region roadbed anti-freezing filler comprises shell-making coal-fired waste residue, fly ash, coarse aggregate, fine aggregate, cement, a curing agent and a polyurethane admixture. After the coal-fired waste residue is subjected to glycidyl ester epoxy resin shell making, the surface is coated with a layer of epoxy resin thin shell, and the strength and the anti-freezing capacity of the coal-fired waste residue are improved. The anti-freezing filler is prepared by mixing the shell-making waste residues with the fly ash, the coarse aggregate, the fine aggregate, the cement, the curing agent, the polyurethane admixture and the like, and the anti-freezing filler has good water stability, anti-freezing capability, strength and other mechanical properties and can improve the freeze-thaw durability of the subgrade structure in the cold region. According to the technical scheme, the roadbed filler with the coal-fired waste residues as the main material and the epoxy resin shell making as the main technology, the problems of mechanical property degradation, frost heaving and thaw collapse caused by insufficient filler stability and durability of the roadbed structure in the cold region are solved, and frost damage prevention and control of the roadbed structure in the cold region are achieved.
本发明公开了一种寒区路基防冻填料及制备方法，所述寒区路基防冻填料，包括造壳燃煤废渣、粉煤灰、粗集料、细集料、水泥、固化剂和聚氨酯类外加剂。燃煤废渣经过缩水甘油酯类环氧树脂造壳后，表面包裹一层环氧树脂薄壳，提高燃煤废渣强度和抗冻能力。造壳后废渣与粉煤灰、粗集料、细集料、水泥、固化剂和聚氨酯类外加剂等混合制备成防冻填料，防冻填料具备良好的水分稳定性、防冻能力及强度等力学性能，可提高寒区路基结构的冻融耐久性。本发明实现一种以燃煤废渣为主要材料的路基填料，以环氧树脂造壳为主要技术的方案，解决寒区路基结构因填料稳定性及耐久性不足而导致力学性能劣化、冻胀融沉问题，实现寒区路基结构的冻害防控。
Cold region roadbed anti-freezing filler and preparation method thereof
一种寒区路基防冻填料及制备方法
REN KUN (author) / YU ZENING (author) / SHI MENGQI (author) / WANG HAITAO (author)
2023-11-07
Patent
Electronic Resource
Chinese
IPC:
C04B
Kalk
,
LIME
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