Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
Production method of chopped glass fiber for sprayed concrete
The invention discloses a production method of chopped glass fibers for shotcrete, and belongs to the technical field of glass fibers, during acid erosion, H < + > reacts with alkali metal oxides in the glass fibers, so that holes are formed in the glass fibers, more Si-O bonds are exposed, more Si-OH is generated, and then the glass fibers react with epoxy polysiloxane quaternary ammonium salt, so that the glass fibers are cured, and the glass fibers are cured. The surface hydrophilicity of the chopped glass fiber formed by quaternary ammonium salt groups is improved, the dispersibility and the fluidity are improved, the surface structure of quaternary ammonium salt can also improve the dispersibility of cement paste, and the chopped glass fiber for shotcrete has enough fluidity; part of chopped glass fiber powder is blended as a cementing material, so that the filling and pozzolanic effects can be fully exerted, and the compressive strength and tensile strength of the concrete are improved; by adopting the spraying process, the requirements of continuous pumping, no blockage in the spraying operation process and proper compactness of the cement mixture can be met. Due to the low water content, the cement can obtain high strength, and the cement can be sprayed on the approximately vertical surface of a base material.
本发明公开了一种喷射混凝土用短切玻璃纤维的生产方法，属于玻璃纤维技术领域，酸侵蚀时H+与玻璃纤维中碱金属氧化物发生反应，因此玻璃纤维产生孔洞暴露出更多的Si‑O键，产生更多的Si‑OH，再与环氧基聚硅氧烷季铵盐反应，使季铵盐基团构成的短切玻璃纤维表面的亲水性得到改善，提高分散性和流动性，季铵盐表面结构还可以改善水泥浆体的分散性，喷射混凝土用短切玻璃纤维具有足够的流动性；掺混部分短切玻璃纤维粉作为胶凝材料可充分发挥填充和火山灰效应，提高混凝土的抗压强度和抗拉强度；采用喷射工艺可以满足连续泵送、喷射操作过程中不发生阻塞和水泥混合料的适当密实。较低的水含量可使水泥获得高的强度，并可在接近垂直的基材表面进行喷射。
Production method of chopped glass fiber for sprayed concrete
The invention discloses a production method of chopped glass fibers for shotcrete, and belongs to the technical field of glass fibers, during acid erosion, H < + > reacts with alkali metal oxides in the glass fibers, so that holes are formed in the glass fibers, more Si-O bonds are exposed, more Si-OH is generated, and then the glass fibers react with epoxy polysiloxane quaternary ammonium salt, so that the glass fibers are cured, and the glass fibers are cured. The surface hydrophilicity of the chopped glass fiber formed by quaternary ammonium salt groups is improved, the dispersibility and the fluidity are improved, the surface structure of quaternary ammonium salt can also improve the dispersibility of cement paste, and the chopped glass fiber for shotcrete has enough fluidity; part of chopped glass fiber powder is blended as a cementing material, so that the filling and pozzolanic effects can be fully exerted, and the compressive strength and tensile strength of the concrete are improved; by adopting the spraying process, the requirements of continuous pumping, no blockage in the spraying operation process and proper compactness of the cement mixture can be met. Due to the low water content, the cement can obtain high strength, and the cement can be sprayed on the approximately vertical surface of a base material.
本发明公开了一种喷射混凝土用短切玻璃纤维的生产方法，属于玻璃纤维技术领域，酸侵蚀时H+与玻璃纤维中碱金属氧化物发生反应，因此玻璃纤维产生孔洞暴露出更多的Si‑O键，产生更多的Si‑OH，再与环氧基聚硅氧烷季铵盐反应，使季铵盐基团构成的短切玻璃纤维表面的亲水性得到改善，提高分散性和流动性，季铵盐表面结构还可以改善水泥浆体的分散性，喷射混凝土用短切玻璃纤维具有足够的流动性；掺混部分短切玻璃纤维粉作为胶凝材料可充分发挥填充和火山灰效应，提高混凝土的抗压强度和抗拉强度；采用喷射工艺可以满足连续泵送、喷射操作过程中不发生阻塞和水泥混合料的适当密实。较低的水含量可使水泥获得高的强度，并可在接近垂直的基材表面进行喷射。
Production method of chopped glass fiber for sprayed concrete
一种喷射混凝土用短切玻璃纤维的生产方法
ZHU HUAIZHU (Autor:in) / ZHU CHENG (Autor:in) / WANG SHANLIANG (Autor:in) / LIU QUANHU (Autor:in)
15.11.2024
Patent
Elektronische Ressource
Chinesisch
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