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A platform for research: civil engineering, architecture and urbanism
Special material for lifting ballastless track bed
The invention relates to the technical field of engineering materials, and discloses a special ballastless track bed lifting material, which is prepared from the following raw materials in parts by weight: 150 to 180 parts of cement, 300 to 700 parts of quartz sand, 20 to 40 parts of slag expanding agent, 10 to 20 parts of steel fiber, 2 to 5 parts of water-based resin, 20 to 30 parts of large-particle active mineral admixture, 3 to 12 parts of water reducing agent, 2 to 8 parts of defoaming agent and 3 to 6 parts of curing agent. According to the special material for lifting the ballastless track bed, newly stirred slurry of the special material for lifting the ballastless track bed is in a high flow state, so that sedimentation and bleeding cannot occur even if the water consumption is large, in addition, the composite expanding agent is introduced into the special material for lifting the ballastless track bed, early-stage shrinkage can be well compensated, and the material can be used for lifting the ballastless track bed. Meanwhile, after the steel fibers are doped, equivalently, reinforcing steel bars are additionally arranged in the material, so that the anti-cracking degree after construction is further enhanced, and the service life is further prolonged.
本发明涉及工程材料技术领域，且公开了一种无砟轨道床抬升专用材料，包括以下重量份数配比的原料：水泥150～180份，石英砂300～700份，矿渣膨胀剂20～40份，钢纤维10～20份、水性树脂2～5份，大颗粒活性矿物掺料20～30份，减水剂3～12份，消泡剂2～8份、养护剂3～6份。该无砟轨道床抬升专用材料，这种无砟轨道床抬升专用材料新拌浆体呈高流态，因此，即使用水量偏大也不会不发生沉降和泌水，此外，这种无砟轨道床抬升专用材料引入了复合膨胀剂，既可以很好地补偿早期收缩，也可以很好地补偿浆体硬化后产生的收缩，环境友好，同时，在掺入钢纤维后，相当于在材料内加装了钢筋，进一步增强了施工后抗裂程度，进而提升使用寿命。
Special material for lifting ballastless track bed
The invention relates to the technical field of engineering materials, and discloses a special ballastless track bed lifting material, which is prepared from the following raw materials in parts by weight: 150 to 180 parts of cement, 300 to 700 parts of quartz sand, 20 to 40 parts of slag expanding agent, 10 to 20 parts of steel fiber, 2 to 5 parts of water-based resin, 20 to 30 parts of large-particle active mineral admixture, 3 to 12 parts of water reducing agent, 2 to 8 parts of defoaming agent and 3 to 6 parts of curing agent. According to the special material for lifting the ballastless track bed, newly stirred slurry of the special material for lifting the ballastless track bed is in a high flow state, so that sedimentation and bleeding cannot occur even if the water consumption is large, in addition, the composite expanding agent is introduced into the special material for lifting the ballastless track bed, early-stage shrinkage can be well compensated, and the material can be used for lifting the ballastless track bed. Meanwhile, after the steel fibers are doped, equivalently, reinforcing steel bars are additionally arranged in the material, so that the anti-cracking degree after construction is further enhanced, and the service life is further prolonged.
本发明涉及工程材料技术领域，且公开了一种无砟轨道床抬升专用材料，包括以下重量份数配比的原料：水泥150～180份，石英砂300～700份，矿渣膨胀剂20～40份，钢纤维10～20份、水性树脂2～5份，大颗粒活性矿物掺料20～30份，减水剂3～12份，消泡剂2～8份、养护剂3～6份。该无砟轨道床抬升专用材料，这种无砟轨道床抬升专用材料新拌浆体呈高流态，因此，即使用水量偏大也不会不发生沉降和泌水，此外，这种无砟轨道床抬升专用材料引入了复合膨胀剂，既可以很好地补偿早期收缩，也可以很好地补偿浆体硬化后产生的收缩，环境友好，同时，在掺入钢纤维后，相当于在材料内加装了钢筋，进一步增强了施工后抗裂程度，进而提升使用寿命。
Special material for lifting ballastless track bed
一种无砟轨道床抬升专用材料
LI WEI (author) / ZHU MAOMAO (author) / TIAN QINPIAO (author)
2022-11-01
Patent
Electronic Resource
Chinese
IPC:
C04B
Kalk
,
LIME
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