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A platform for research: civil engineering, architecture and urbanism
Graphite tailing-sawn mud road subbase material as well as preparation method and application thereof
The invention relates to the technical field of comprehensive utilization of industrial solid waste, in particular to a graphite tailing-sawing mud road subbase material and a preparation method and application thereof.The graphite tailing-sawing mud road subbase material is prepared from, by weight, 40-55 parts of graphite tailings, 45-60 parts of sawing mud, 0.5-2 parts of phase change microcapsules, 5-10 parts of slaked lime, 10-20 parts of fly ash, 0.5-1.5 parts of titanium gypsum and 0.5-2 parts of steel slag powder; 5 to 15 parts of water; 0.05 to 0.2 part of dispersing agent; the 7d unconfined compressive strength of the graphite tailing-sawn mud road subbase material ranges from 2.64 MPa to 3.87 MPa, and the compressive strength loss rate (BDR) ranges from 82.1% to 86.2%. The graphite tailings-saw mud are solidified by using the cementing material titanium gypsum and the steel slag powder with micro-expansion characteristics, so that the dry shrinkage and temperature shrinkage properties of the subbase material are optimized, and meanwhile, the anti-freezing capability of the subbase material is improved by adding the phase change microcapsules.
本发明涉及工业固体废弃物综合利用技术领域，具体为一种石墨尾矿‑锯泥道路底基层材料及其制备方法和应用，包括以下重量份的组分：石墨尾矿40‑55份，锯泥45‑60份，相变微胶囊0.5‑2份，消石灰5‑10份，粉煤灰10‑20份，钛石膏0.5‑1.5份，钢渣粉0.5‑2份，水5‑15份和分散剂0.05‑0.2份；石墨尾矿‑锯泥道路底基层材料的7d无侧限抗压强度范围为2.64‑3.87MPa，抗压强度损失率(BDR)范围为82.1％‑86.2％。通过使用具有微膨胀特性的胶凝材料钛石膏和钢渣粉固化石墨尾矿‑锯泥，优化了底基层材料的干缩、温缩性能，同时通过添加相变微胶囊提高了底基层材料的抗冻能力。
Graphite tailing-sawn mud road subbase material as well as preparation method and application thereof
The invention relates to the technical field of comprehensive utilization of industrial solid waste, in particular to a graphite tailing-sawing mud road subbase material and a preparation method and application thereof.The graphite tailing-sawing mud road subbase material is prepared from, by weight, 40-55 parts of graphite tailings, 45-60 parts of sawing mud, 0.5-2 parts of phase change microcapsules, 5-10 parts of slaked lime, 10-20 parts of fly ash, 0.5-1.5 parts of titanium gypsum and 0.5-2 parts of steel slag powder; 5 to 15 parts of water; 0.05 to 0.2 part of dispersing agent; the 7d unconfined compressive strength of the graphite tailing-sawn mud road subbase material ranges from 2.64 MPa to 3.87 MPa, and the compressive strength loss rate (BDR) ranges from 82.1% to 86.2%. The graphite tailings-saw mud are solidified by using the cementing material titanium gypsum and the steel slag powder with micro-expansion characteristics, so that the dry shrinkage and temperature shrinkage properties of the subbase material are optimized, and meanwhile, the anti-freezing capability of the subbase material is improved by adding the phase change microcapsules.
本发明涉及工业固体废弃物综合利用技术领域，具体为一种石墨尾矿‑锯泥道路底基层材料及其制备方法和应用，包括以下重量份的组分：石墨尾矿40‑55份，锯泥45‑60份，相变微胶囊0.5‑2份，消石灰5‑10份，粉煤灰10‑20份，钛石膏0.5‑1.5份，钢渣粉0.5‑2份，水5‑15份和分散剂0.05‑0.2份；石墨尾矿‑锯泥道路底基层材料的7d无侧限抗压强度范围为2.64‑3.87MPa，抗压强度损失率(BDR)范围为82.1％‑86.2％。通过使用具有微膨胀特性的胶凝材料钛石膏和钢渣粉固化石墨尾矿‑锯泥，优化了底基层材料的干缩、温缩性能，同时通过添加相变微胶囊提高了底基层材料的抗冻能力。
Graphite tailing-sawn mud road subbase material as well as preparation method and application thereof
一种石墨尾矿-锯泥道路底基层材料及其制备方法和应用
CHENG XIN (author) / JIA JIAN (author) / LU XIAOLEI (author) / LI XIANGZU (author) / YU HAIPING (author)
2023-12-22
Patent
Electronic Resource
Chinese
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