A kind of rapid repair material and its application method in low temperature environment
A technology for repairing materials and low temperature environment, which is applied in the field of cement concrete structure repairing materials, can solve the problems of inability to meet open traffic, prolonged setting and hardening time, etc., and achieves the effects of good crack resistance, simple construction and rapid development.
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Embodiment 1
[0039] A rapid repair material under low temperature environment, comprising the following raw materials in parts by weight:
[0040] 80 parts of high belite sulfoaluminate cement, 20 parts of fast hardening sulfoaluminate cement, 4 parts of early strength accelerator, 0.8 part of water reducer, 3 parts of rubber powder, and 0.3 part of fiber.
[0041] The high belite sulphoaluminate cement is grade 42.5 anti-cracking double-fast cement; the strength grade of the fast-hardening sulphoaluminate cement is 42.5; the main mineral components of the early strength accelerator include calcium silicate, calcium aluminate and Its hydration product is a special coagulant for rapid hardening sulfoaluminate cement; the water reducing agent is melamine high-efficiency water reducing agent; the rubber powder is ethylene-vinyl acetate polymer; the fiber is polypropylene fiber with a length of 6mm.
[0042] When the ambient temperature is 5°C and the repair material: water: sand = 1:0.3:1.5, ...
Embodiment 2
[0044] A rapid repair material under low temperature environment, comprising the following raw materials in parts by weight:
[0045] 65 parts of high belite sulfoaluminate cement, 35 parts of fast hardening sulfoaluminate cement, 3 parts of early strength accelerator, 0.3 part of water reducer, 2.5 parts of rubber powder, and 0.25 part of fiber.
[0046] The high belite sulphoaluminate cement is grade 42.5 anti-cracking double-fast cement; the strength grade of the fast-hardening sulphoaluminate cement is 42.5; the main mineral components of the early strength accelerator include calcium silicate, calcium aluminate and Its hydration product is a special coagulant for fast-hardening sulfoaluminate cement; the water reducer is polycarboxylate high-performance water reducer; the rubber powder is acrylic polymer; the fiber is polypropylene fiber with a length of 6mm .
[0047] When the ambient temperature is 5°C and the repair material: water: sand = 1:0.3:1.5, its performance i...
Embodiment 3
[0049] A rapid repair material under low temperature environment, comprising the following raw materials in parts by weight:
[0050] 50 parts of high belite sulfoaluminate cement, 50 parts of fast hardening sulfoaluminate cement, 2 parts of early strength accelerator, 0.28 part of water reducer, 2 parts of rubber powder, and 0.25 part of fiber.
[0051] The high belite sulphoaluminate cement is grade 42.5 anti-cracking double-fast cement; the strength grade of the fast-hardening sulphoaluminate cement is 42.5; the main mineral components of the early strength accelerator include calcium silicate, calcium aluminate and Its hydration product is a special coagulant for fast-hardening sulfoaluminate cement; the water reducer is polycarboxylate high-performance water reducer; the rubber powder is acrylic polymer; the fiber is polypropylene fiber with a length of 6mm .
[0052] When the ambient temperature is 5°C and the repair material: water: sand = 1:0.3:1.5, its performance in...
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