Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
Premixed flow-state backfill material for pavement base filling and preparation method of premixed flow-state backfill material
The invention relates to the technical field of road engineering materials, and discloses a premixed flow-state backfill material for pavement base filling and a preparation method of the premixed flow-state backfill material. The premixed flow-state backfill material for pavement base filling is prepared from 80 to 200 parts of cement, 5 to 20 parts of nano silicon dioxide, 40 to 120 parts of fly ash, 300 to 550 parts of recycled machine-made sand dust collecting powder, 2 to 10 parts of dry desulfurization ash, 650 to 850 parts of recycled aggregate, 0.5 to 3.0 parts of polypropylene fiber, 5 to 15 parts of liquid additive and 250 to 400 parts of water. The prepared premixed flow-state backfill material has good fluidity and fluidity keeping ability, meets the requirement of long-distance transportation, is high in early strength and capable of achieving rapid construction, solves the contradiction between the good fluidity keeping ability of the premixed flow-state backfill material and obtaining of high early strength, and is uniform, free of bleeding, low in dry shrinkage rate and good in stability. And compared with the traditional stable material for the pavement base course, the stable material disclosed by the invention does not need to be rolled, and is convenient to construct and very high in construction efficiency.
本发明涉及道路工程材料技术领域，公开了一种路面基层填筑用预拌流态回填材料及其制备方法。这种路面基层填筑用预拌流态回填材料，包括：水泥80～200份、纳米二氧化硅5～20份、粉煤灰40～120份、再生机制砂收尘粉300～550份、干法脱硫灰2～10份、再生骨料650～850份、聚丙烯纤维0.5～3.0份、液体添加剂5～15份、水250～400份。本发明制备的预拌流态回填材料具有良好的流动度与流动度保持能力，满足远距离运输要求，早期强度高，可实现快速施工，本发明解决了预拌流态回填材料流动度良好保持能力与获得较高早期强度的矛盾，拌合物均匀不泌水，干缩率低，抗裂性好，与传统的路面基层用稳定材料相比，无须碾压，施工方便，施工效率很高。
Premixed flow-state backfill material for pavement base filling and preparation method of premixed flow-state backfill material
The invention relates to the technical field of road engineering materials, and discloses a premixed flow-state backfill material for pavement base filling and a preparation method of the premixed flow-state backfill material. The premixed flow-state backfill material for pavement base filling is prepared from 80 to 200 parts of cement, 5 to 20 parts of nano silicon dioxide, 40 to 120 parts of fly ash, 300 to 550 parts of recycled machine-made sand dust collecting powder, 2 to 10 parts of dry desulfurization ash, 650 to 850 parts of recycled aggregate, 0.5 to 3.0 parts of polypropylene fiber, 5 to 15 parts of liquid additive and 250 to 400 parts of water. The prepared premixed flow-state backfill material has good fluidity and fluidity keeping ability, meets the requirement of long-distance transportation, is high in early strength and capable of achieving rapid construction, solves the contradiction between the good fluidity keeping ability of the premixed flow-state backfill material and obtaining of high early strength, and is uniform, free of bleeding, low in dry shrinkage rate and good in stability. And compared with the traditional stable material for the pavement base course, the stable material disclosed by the invention does not need to be rolled, and is convenient to construct and very high in construction efficiency.
本发明涉及道路工程材料技术领域，公开了一种路面基层填筑用预拌流态回填材料及其制备方法。这种路面基层填筑用预拌流态回填材料，包括：水泥80～200份、纳米二氧化硅5～20份、粉煤灰40～120份、再生机制砂收尘粉300～550份、干法脱硫灰2～10份、再生骨料650～850份、聚丙烯纤维0.5～3.0份、液体添加剂5～15份、水250～400份。本发明制备的预拌流态回填材料具有良好的流动度与流动度保持能力，满足远距离运输要求，早期强度高，可实现快速施工，本发明解决了预拌流态回填材料流动度良好保持能力与获得较高早期强度的矛盾，拌合物均匀不泌水，干缩率低，抗裂性好，与传统的路面基层用稳定材料相比，无须碾压，施工方便，施工效率很高。
Premixed flow-state backfill material for pavement base filling and preparation method of premixed flow-state backfill material
一种路面基层填筑用预拌流态回填材料及其制备方法
XIONG LEI (Autor:in) / YUE GANG (Autor:in) / WANG SHANYING (Autor:in)
11.10.2024
Patent
Elektronische Ressource
Chinesisch
IPC:
C04B
Kalk
,
LIME
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