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A platform for research: civil engineering, architecture and urbanism
Roadbed mixed material prepared from ardealite and construction process
The invention relates to the technical field of roadbed materials, in particular to a roadbed mixed material prepared from ardealite and a construction process. The roadbed mixed material is composed of ardealite, a cementing material, a water repellent agent and polypropylene fibers, the cementing material is composed of S95 mineral powder, tetracalcium sulphoaluminate, light calcined magnesia and anhydrous sodium carbonate, and the water repellent agent is prepared from a KH792 silane coupling agent, methyl triethoxysilane and tetraethoxysilane. The construction technology combining a surface treatment method and an overall mixing method is adopted, the phosphogypsum makes full contact with the hydrophobic agent, the hydrophobic effect of the hydrophobic agent is improved, under the synergistic effect of the binding material and the polypropylene fiber, the practical engineering application problems that a large-dosage phosphogypsum roadbed material is low in strength and poor in water stability can be remarkably solved, and the construction efficiency is improved. Meanwhile, the harm of dissolution of soluble fluorine and phosphorus in the ardealite to the environment can be effectively avoided, harmless, reduction and recycling treatment of the ardealite is achieved, and good environmental protection and economic benefits are achieved.
本发明涉及路基材料技术领域，尤其涉及一种利用磷石膏制备的路基混合材料及施工工艺。本发明所述路基混合材料由磷石膏、胶凝材料、疏水剂和聚丙烯纤维组成，其中胶凝材料由S95矿粉、硫铝酸四钙、轻烧氧化镁和无水碳酸钠组成，疏水剂由KH792硅烷偶联剂、甲基三乙氧基硅烷和正硅酸乙酯制成。本发明采用表面处理法和整体掺混法相结合的施工工艺，使磷石膏与疏水剂充分接触，提高其憎水效果，在胶凝材料和聚丙烯纤维协同作用下，不仅能够显著改善大掺量磷石膏路基材料强度低且水稳性差的实际工程应用问题，同时还能够有效避免磷石膏中可溶性氟和磷的溶出对环境的危害，实现了磷石膏的无害化、减量化和资源化处置，具有较好的环保和经济效益。
Roadbed mixed material prepared from ardealite and construction process
The invention relates to the technical field of roadbed materials, in particular to a roadbed mixed material prepared from ardealite and a construction process. The roadbed mixed material is composed of ardealite, a cementing material, a water repellent agent and polypropylene fibers, the cementing material is composed of S95 mineral powder, tetracalcium sulphoaluminate, light calcined magnesia and anhydrous sodium carbonate, and the water repellent agent is prepared from a KH792 silane coupling agent, methyl triethoxysilane and tetraethoxysilane. The construction technology combining a surface treatment method and an overall mixing method is adopted, the phosphogypsum makes full contact with the hydrophobic agent, the hydrophobic effect of the hydrophobic agent is improved, under the synergistic effect of the binding material and the polypropylene fiber, the practical engineering application problems that a large-dosage phosphogypsum roadbed material is low in strength and poor in water stability can be remarkably solved, and the construction efficiency is improved. Meanwhile, the harm of dissolution of soluble fluorine and phosphorus in the ardealite to the environment can be effectively avoided, harmless, reduction and recycling treatment of the ardealite is achieved, and good environmental protection and economic benefits are achieved.
本发明涉及路基材料技术领域，尤其涉及一种利用磷石膏制备的路基混合材料及施工工艺。本发明所述路基混合材料由磷石膏、胶凝材料、疏水剂和聚丙烯纤维组成，其中胶凝材料由S95矿粉、硫铝酸四钙、轻烧氧化镁和无水碳酸钠组成，疏水剂由KH792硅烷偶联剂、甲基三乙氧基硅烷和正硅酸乙酯制成。本发明采用表面处理法和整体掺混法相结合的施工工艺，使磷石膏与疏水剂充分接触，提高其憎水效果，在胶凝材料和聚丙烯纤维协同作用下，不仅能够显著改善大掺量磷石膏路基材料强度低且水稳性差的实际工程应用问题，同时还能够有效避免磷石膏中可溶性氟和磷的溶出对环境的危害，实现了磷石膏的无害化、减量化和资源化处置，具有较好的环保和经济效益。
Roadbed mixed material prepared from ardealite and construction process
一种利用磷石膏制备的路基混合材料及施工工艺
LI DEGAO (author) / SHEN JUN (author) / MA HANG (author) / CHENG YIN (author) / NIAN ZHIWEI (author) / SONG XINTONG (author) / HUANG DI (author) / ZOU DONGBO (author) / WAN BANGLONG (author) / MA XINRUI (author)
2024-03-01
Patent
Electronic Resource
Chinese
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