Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
Concrete reinforcing steel bar corrosion inhibitor and preparation method and use method thereof
The invention relates to a concrete reinforcing steel bar corrosion inhibitor as well as a preparation method and a use method thereof, and belongs to the technical field of building materials. The concrete reinforcing steel bar corrosion inhibitor is layered double-metal hydroxide subjected to surface modification by sodium lignin sulfonate, after the layered double-metal hydroxide is subjected to surface modification by sodium lignin sulfonate, the specific surface area of the layered double-metal hydroxide is greatly increased, so that the surface adsorption capacity and the interlayer anion exchange capacity of the layered double-metal hydroxide are improved, and the solidification capacity of the layered double-metal hydroxide to chloride ions is further improved. The corrosion inhibitor is an internally-doped corrosion inhibitor, and can effectively improve a pore structure of concrete, so the speed of an external corrosive medium entering the concrete is delayed. The corrosion inhibitor is simple and easily available in raw materials, low in cost, simple and non-toxic in preparation process, is an environment-friendly corrosion inhibitor, can be directly added into concretefor use, overcomes the defects of a traditional corrosion inhibitor, has the advantages of excellent corrosion inhibition effect, environmental protection, high efficiency and the like, can be widelyapplied to reinforced concrete engineering, and has a wide application prospect.
本发明涉及一种混凝土钢筋阻锈剂及其制备方法和使用方法，属于建筑材料技术领域。该混凝土钢筋阻锈剂为经木质素磺酸钠表面改性后的层状双金属氢氧化物，层状双金属氢氧化物经木质素磺酸钠表面改性后，其比表面积得到了大幅增加，从而增加了其表面吸附能力及层间阴离子交换能力，进而提高了对氯离子的固结能力。该阻锈剂为内掺型阻锈剂，能有效改善混凝土的孔结构，从而延缓外界腐蚀性介质进入混凝土内部的速率。该阻锈剂原料简单易得，成本低廉，制备过程简单无毒，为环境友好型阻锈剂，可直接将其加入混凝土中使用，克服了传统阻锈剂的不足，并具有阻锈效果优、环保、高效等优点，可广泛应用于钢筋混凝土工程，具有广阔的应用前景。
Concrete reinforcing steel bar corrosion inhibitor and preparation method and use method thereof
The invention relates to a concrete reinforcing steel bar corrosion inhibitor as well as a preparation method and a use method thereof, and belongs to the technical field of building materials. The concrete reinforcing steel bar corrosion inhibitor is layered double-metal hydroxide subjected to surface modification by sodium lignin sulfonate, after the layered double-metal hydroxide is subjected to surface modification by sodium lignin sulfonate, the specific surface area of the layered double-metal hydroxide is greatly increased, so that the surface adsorption capacity and the interlayer anion exchange capacity of the layered double-metal hydroxide are improved, and the solidification capacity of the layered double-metal hydroxide to chloride ions is further improved. The corrosion inhibitor is an internally-doped corrosion inhibitor, and can effectively improve a pore structure of concrete, so the speed of an external corrosive medium entering the concrete is delayed. The corrosion inhibitor is simple and easily available in raw materials, low in cost, simple and non-toxic in preparation process, is an environment-friendly corrosion inhibitor, can be directly added into concretefor use, overcomes the defects of a traditional corrosion inhibitor, has the advantages of excellent corrosion inhibition effect, environmental protection, high efficiency and the like, can be widelyapplied to reinforced concrete engineering, and has a wide application prospect.
本发明涉及一种混凝土钢筋阻锈剂及其制备方法和使用方法，属于建筑材料技术领域。该混凝土钢筋阻锈剂为经木质素磺酸钠表面改性后的层状双金属氢氧化物，层状双金属氢氧化物经木质素磺酸钠表面改性后，其比表面积得到了大幅增加，从而增加了其表面吸附能力及层间阴离子交换能力，进而提高了对氯离子的固结能力。该阻锈剂为内掺型阻锈剂，能有效改善混凝土的孔结构，从而延缓外界腐蚀性介质进入混凝土内部的速率。该阻锈剂原料简单易得，成本低廉，制备过程简单无毒，为环境友好型阻锈剂，可直接将其加入混凝土中使用，克服了传统阻锈剂的不足，并具有阻锈效果优、环保、高效等优点，可广泛应用于钢筋混凝土工程，具有广阔的应用前景。
Concrete reinforcing steel bar corrosion inhibitor and preparation method and use method thereof
一种混凝土钢筋阻锈剂及其制备方法和使用方法
YU LINWEN (Autor:in) / JIANG JINYU (Autor:in) / BI RENKE (Autor:in) / YU YANG (Autor:in) / CHEN MENGZHU (Autor:in) / WU FANG (Autor:in) / TANG JING (Autor:in)
17.07.2020
Patent
Elektronische Ressource
Chinesisch
IPC:
C04B
Kalk
,
LIME
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