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Nano silicon dioxide modified cement-based grouting full-length anchoring material and preparation method thereof
The invention relates to the technical field of grouting materials, in particular to a nano-silica modified cement-based grouting full-length anchoring material and a preparation method thereof, and aims to solve the problems that chemical slurry is generally toxic, low in strength, short in service life and required to be frequently supplemented, so that the total cost is high, cement particles in cement slurry are large, and the grouting quality is poor. The problems that small gaps cannot be filled under normal conditions, meanwhile, the strength between a grouting body and a crack matrix is obviously reduced along with volume shrinkage in the cement setting process, and the actual application requirement is difficult to meet are solved. The grouting full-length anchoring material comprises standard cement, a water reducing agent, an expanding agent, an accelerator and nano silicon dioxide, compared with the existing cement grouting material, the cement grouting material has the advantages of high slurry stability, good fluidity, strong groutability and micro-expansion performance, and shows higher anchoring strength, enhanced coordinated deformation capability and better durability in a full-length grouting system as an anchoring agent.
本发明涉及注浆材料技术领域，具体涉及纳米二氧化硅改性水泥基注浆全长锚固材料及制备方法，用于解决化学浆料通常有毒，强度较低，使用寿命不长，需频繁补充，因此总成本较高，水泥浆液中的水泥颗粒较大，通常情况下无法填充细小缝隙，同时，在水泥凝结过程中常伴随着体积的收缩，使注浆体和裂隙基体之间的强度明显降低，难以满足实际运用的需求的问题；该注浆全长锚固材料包括基准水泥、减水剂、膨胀剂、速凝剂以及纳米二氧化硅；本发明与现有水泥注浆材料相比，浆液稳定性高，流动性好，可注性强，具有微膨胀性能，作为锚固剂在全长注浆体系中表现出更高的锚固强度、增强的协调变形能力和较好的耐久性。
Nano silicon dioxide modified cement-based grouting full-length anchoring material and preparation method thereof
The invention relates to the technical field of grouting materials, in particular to a nano-silica modified cement-based grouting full-length anchoring material and a preparation method thereof, and aims to solve the problems that chemical slurry is generally toxic, low in strength, short in service life and required to be frequently supplemented, so that the total cost is high, cement particles in cement slurry are large, and the grouting quality is poor. The problems that small gaps cannot be filled under normal conditions, meanwhile, the strength between a grouting body and a crack matrix is obviously reduced along with volume shrinkage in the cement setting process, and the actual application requirement is difficult to meet are solved. The grouting full-length anchoring material comprises standard cement, a water reducing agent, an expanding agent, an accelerator and nano silicon dioxide, compared with the existing cement grouting material, the cement grouting material has the advantages of high slurry stability, good fluidity, strong groutability and micro-expansion performance, and shows higher anchoring strength, enhanced coordinated deformation capability and better durability in a full-length grouting system as an anchoring agent.
本发明涉及注浆材料技术领域，具体涉及纳米二氧化硅改性水泥基注浆全长锚固材料及制备方法，用于解决化学浆料通常有毒，强度较低，使用寿命不长，需频繁补充，因此总成本较高，水泥浆液中的水泥颗粒较大，通常情况下无法填充细小缝隙，同时，在水泥凝结过程中常伴随着体积的收缩，使注浆体和裂隙基体之间的强度明显降低，难以满足实际运用的需求的问题；该注浆全长锚固材料包括基准水泥、减水剂、膨胀剂、速凝剂以及纳米二氧化硅；本发明与现有水泥注浆材料相比，浆液稳定性高，流动性好，可注性强，具有微膨胀性能，作为锚固剂在全长注浆体系中表现出更高的锚固强度、增强的协调变形能力和较好的耐久性。
Nano silicon dioxide modified cement-based grouting full-length anchoring material and preparation method thereof
纳米二氧化硅改性水泥基注浆全长锚固材料及制备方法
WANG YANFEN (author) / LIU HEHAI (author) / ZHAO GUANGMING (author) / ZENG XIWEN (author) / CHENG XIANG (author) / AI JIE (author) / JIA PENGFEI (author)
2024-10-29
Patent
Electronic Resource
Chinese
IPC:
C04B
Kalk
,
LIME
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