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Micro-nano self-healing reinforcing agent for reducing springback amount of shotcrete, preparation method and production equipment
The invention provides a micro-nano self-healing type shotcrete resilience reducing reinforcing agent, a preparation method and production equipment, the micro-nano self-healing type shotcrete resilience reducing reinforcing agent comprises the following raw materials in percentage by weight: 30-40% of a nano composite material, 45-50% of double fast cement, 3-8% of an early strength agent, 2-10% of a mineral activator, 8-15% of a healing crystallization catalyst and 0.1-2% of nano carbon fiber, and the sum of the raw materials is 100%. The high adsorbability of the micro-nano material is utilized to improve the cohesiveness of the sprayed concrete and increase the compactness of the concrete, the mineral activator is further utilized to activate the micro-nano powder to accelerate the hydration of the cementing material, the setting time of the concrete is shortened, and the early strength is improved; the carbon nanofibers increase the bonding force between the cement and the aggregate, improve the volume stability of the concrete, reduce the springback amount of the sprayed concrete, and ensure the early and later strength. In the service process of the sprayed concrete, if water seepage occurs due to incompactness, the self-healing crystallization catalyst stimulates unhydrated cement to hydrate when meeting water, crystals are generated to block leakage points, and the later maintenance cost can be reduced.
本发明提供了一种微纳米自愈型降喷射混凝土回弹量增强剂、制备方法及生产设备，按照重量百分比计，原料包括纳米复合材料30%～40%、双快水泥45%～50%、早强剂3%～8%、矿物激发剂2%～10%，愈合结晶催化剂8%～15%，纳米碳纤维0.1%～2%，各原料总和为100%，利用微纳米材料高吸附性提高喷射混凝土粘聚性，增加混凝土密实度，进一步让矿物激发剂活化微纳米粉体加速胶凝材料加速水化，缩短混凝土凝结时间，提高早期强度；纳米碳纤维增加水泥与骨料的粘接力，提升混凝土体积稳定性，降低喷射混凝土回弹量，保证早期和后期强度。喷射混凝土服役过程中如因不密实出现渗水，自愈合结晶催化剂遇水激发未水化的水泥水化，生成晶体堵塞渗漏点，可以降低后期维修成本。
Micro-nano self-healing reinforcing agent for reducing springback amount of shotcrete, preparation method and production equipment
The invention provides a micro-nano self-healing type shotcrete resilience reducing reinforcing agent, a preparation method and production equipment, the micro-nano self-healing type shotcrete resilience reducing reinforcing agent comprises the following raw materials in percentage by weight: 30-40% of a nano composite material, 45-50% of double fast cement, 3-8% of an early strength agent, 2-10% of a mineral activator, 8-15% of a healing crystallization catalyst and 0.1-2% of nano carbon fiber, and the sum of the raw materials is 100%. The high adsorbability of the micro-nano material is utilized to improve the cohesiveness of the sprayed concrete and increase the compactness of the concrete, the mineral activator is further utilized to activate the micro-nano powder to accelerate the hydration of the cementing material, the setting time of the concrete is shortened, and the early strength is improved; the carbon nanofibers increase the bonding force between the cement and the aggregate, improve the volume stability of the concrete, reduce the springback amount of the sprayed concrete, and ensure the early and later strength. In the service process of the sprayed concrete, if water seepage occurs due to incompactness, the self-healing crystallization catalyst stimulates unhydrated cement to hydrate when meeting water, crystals are generated to block leakage points, and the later maintenance cost can be reduced.
本发明提供了一种微纳米自愈型降喷射混凝土回弹量增强剂、制备方法及生产设备，按照重量百分比计，原料包括纳米复合材料30%～40%、双快水泥45%～50%、早强剂3%～8%、矿物激发剂2%～10%，愈合结晶催化剂8%～15%，纳米碳纤维0.1%～2%，各原料总和为100%，利用微纳米材料高吸附性提高喷射混凝土粘聚性，增加混凝土密实度，进一步让矿物激发剂活化微纳米粉体加速胶凝材料加速水化，缩短混凝土凝结时间，提高早期强度；纳米碳纤维增加水泥与骨料的粘接力，提升混凝土体积稳定性，降低喷射混凝土回弹量，保证早期和后期强度。喷射混凝土服役过程中如因不密实出现渗水，自愈合结晶催化剂遇水激发未水化的水泥水化，生成晶体堵塞渗漏点，可以降低后期维修成本。
Micro-nano self-healing reinforcing agent for reducing springback amount of shotcrete, preparation method and production equipment
微纳米自愈型降喷射混凝土回弹量增强剂、制备方法及生产设备
SHI ZHAN (author) / LI JIADONG (author) / ZENG ZHIYONG (author) / CAI XUDAN (author)
2024-08-09
Patent
Electronic Resource
Chinese
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