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A platform for research: civil engineering, architecture and urbanism
Nano SiO2 high-strength waterproof impermeable mortar and preparation method thereof
The invention provides nano SiO2 high-strength waterproof impermeable mortar and a preparation method thereof. The waterproof impermeable mortar is prepared from the following raw materials: cement, water, sand, fly ash, nano SiO2 dispersion liquid and the like. By adding other active materials such as the nano SiO2, the polypropylene fibers and the early strength agent, the cement-based material can be brought into pores inside the cement-based material under the carrying action of water, particularly capillary pores with small sizes, to absorb water and expand, so that a filling effect is achieved. Besides, nano SiO2 can participate in and promote hydration reaction, and produced fine and regular hydrated crystalline substances are attached to the peripheries of pores, so that the microstructure is densified, a dense impermeable area is formed in the deep position of the interior of the cement-based material, and the waterproof and impermeable performance of the cement-based material is greatly improved. The added nano SiO2 can improve the microstructure of the cement-based material and inhibit the generation of cracks, so that the strength, seepage resistance and durability of the cement-based material are improved.
本发明提供了一种纳米SiO2高强防水抗渗砂浆及其制备方法，该防水抗渗砂浆包括以下原料：水泥、水、砂、粉煤灰、纳米SiO2分散液等。本申请通过加入纳米SiO2、聚丙烯纤维以及早强剂等其他的活性材料，可以在水的运载作用下，被带入到水泥基材料内部的孔隙中，特别是尺寸较小的毛细孔中吸水膨胀从而起到填充效应。此外，纳米SiO2可以参与并促进水化反应，生产细微和规整的水化结晶物质附着在孔隙周围，从而使得微观结构致密化，进而在水泥基材料的内部深处形成一个致密的抗渗区域，大大提升其防水抗渗性能。本申请加入的纳米SiO2可以改善其微观结构并抑制裂缝的产生，从而使水泥基材料的强度、抗滲性及耐久性都得到提高。
Nano SiO2 high-strength waterproof impermeable mortar and preparation method thereof
The invention provides nano SiO2 high-strength waterproof impermeable mortar and a preparation method thereof. The waterproof impermeable mortar is prepared from the following raw materials: cement, water, sand, fly ash, nano SiO2 dispersion liquid and the like. By adding other active materials such as the nano SiO2, the polypropylene fibers and the early strength agent, the cement-based material can be brought into pores inside the cement-based material under the carrying action of water, particularly capillary pores with small sizes, to absorb water and expand, so that a filling effect is achieved. Besides, nano SiO2 can participate in and promote hydration reaction, and produced fine and regular hydrated crystalline substances are attached to the peripheries of pores, so that the microstructure is densified, a dense impermeable area is formed in the deep position of the interior of the cement-based material, and the waterproof and impermeable performance of the cement-based material is greatly improved. The added nano SiO2 can improve the microstructure of the cement-based material and inhibit the generation of cracks, so that the strength, seepage resistance and durability of the cement-based material are improved.
本发明提供了一种纳米SiO2高强防水抗渗砂浆及其制备方法，该防水抗渗砂浆包括以下原料：水泥、水、砂、粉煤灰、纳米SiO2分散液等。本申请通过加入纳米SiO2、聚丙烯纤维以及早强剂等其他的活性材料，可以在水的运载作用下，被带入到水泥基材料内部的孔隙中，特别是尺寸较小的毛细孔中吸水膨胀从而起到填充效应。此外，纳米SiO2可以参与并促进水化反应，生产细微和规整的水化结晶物质附着在孔隙周围，从而使得微观结构致密化，进而在水泥基材料的内部深处形成一个致密的抗渗区域，大大提升其防水抗渗性能。本申请加入的纳米SiO2可以改善其微观结构并抑制裂缝的产生，从而使水泥基材料的强度、抗滲性及耐久性都得到提高。
Nano SiO2 high-strength waterproof impermeable mortar and preparation method thereof
一种纳米SiO2高强防水抗渗砂浆及其制备方法
WANG XIAOFAN (author) / SHI WEI (author) / ZHU HUA (author)
2021-04-16
Patent
Electronic Resource
Chinese
IPC:
C04B
Kalk
,
LIME
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