Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
The invention belongs to the technical field of building materials, and particularly relates to a concrete surface reinforcing agent as well as a preparation method and application thereof. The concrete surface reinforcing agent is prepared from the following raw material components: sulfur-containing superfine iron tailings, nano gypsum, nano calcium sulfate, monotridecafluorooctyl ether and water. The molar ratio of aluminum to sulfur in the mixture is 1: 3; the mole ratio of aluminum to calcium is 1: 6. The formula design is reasonable, the surface tension of the whole solution is reduced through the monotridecafluorooctyl ether, and the monotridecafluorooctyl ether can permeate into gaps in the surface of concrete more easily; after the reinforcing agent infiltrated into the gaps is in contact with an alkaline solution in the concrete curing process, the added tailings, calcium sulfate and calcium carbonate slowly chemically react to generate ettringite crystals, and the ettringite crystals gradually grow to generate volume expansion to fill the original gaps in the concrete, so that the surface of the concrete is densified, and the durability and the impermeability of the concrete are improved.
本发明属于建筑材料技术领域，具体涉及一种混凝土表面增强剂及其制备方法和应用；该混凝土表面增强剂原料组分包括含硫超细铁尾矿、纳米石膏、纳米硫酸钙、单十三氟辛基醚和水；混合物中铝和硫的摩尔数比为1：3；铝和钙的摩尔数比为1：6。本发明配方设计合理，通过单十三氟辛基醚降低整个溶液的表面张力，使其更容易渗入混凝土表面的空隙中；渗入空隙的增强剂接触到混凝土熟化过程中的碱性溶液后，加入的尾矿、硫酸钙和碳酸钙缓慢发生化学反应，生成钙矾石晶体并逐步长大，产生体积膨胀，填充满混凝土中原有空隙，使其表面致密化，导致混凝土耐久性和抗渗性提升。
The invention belongs to the technical field of building materials, and particularly relates to a concrete surface reinforcing agent as well as a preparation method and application thereof. The concrete surface reinforcing agent is prepared from the following raw material components: sulfur-containing superfine iron tailings, nano gypsum, nano calcium sulfate, monotridecafluorooctyl ether and water. The molar ratio of aluminum to sulfur in the mixture is 1: 3; the mole ratio of aluminum to calcium is 1: 6. The formula design is reasonable, the surface tension of the whole solution is reduced through the monotridecafluorooctyl ether, and the monotridecafluorooctyl ether can permeate into gaps in the surface of concrete more easily; after the reinforcing agent infiltrated into the gaps is in contact with an alkaline solution in the concrete curing process, the added tailings, calcium sulfate and calcium carbonate slowly chemically react to generate ettringite crystals, and the ettringite crystals gradually grow to generate volume expansion to fill the original gaps in the concrete, so that the surface of the concrete is densified, and the durability and the impermeability of the concrete are improved.
本发明属于建筑材料技术领域，具体涉及一种混凝土表面增强剂及其制备方法和应用；该混凝土表面增强剂原料组分包括含硫超细铁尾矿、纳米石膏、纳米硫酸钙、单十三氟辛基醚和水；混合物中铝和硫的摩尔数比为1：3；铝和钙的摩尔数比为1：6。本发明配方设计合理，通过单十三氟辛基醚降低整个溶液的表面张力，使其更容易渗入混凝土表面的空隙中；渗入空隙的增强剂接触到混凝土熟化过程中的碱性溶液后，加入的尾矿、硫酸钙和碳酸钙缓慢发生化学反应，生成钙矾石晶体并逐步长大，产生体积膨胀，填充满混凝土中原有空隙，使其表面致密化，导致混凝土耐久性和抗渗性提升。
Concrete surface reinforcing agent as well as preparation method and application thereof
一种混凝土表面增强剂及其制备方法和应用
10.01.2025
Patent
Elektronische Ressource
Chinesisch
IPC:
C04B
Kalk
,
LIME
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