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Sustained and controlled release type grouting reinforcement material for soft broken surrounding rock and application method of sustained and controlled release type grouting reinforcement material
The invention discloses a slow controlled release grouting reinforcement material for weak broken surrounding rock, and the powder material comprises the following components in parts by mass: 300-400 parts of ordinary Portland cement, 50-80 parts of fly ash, 10-20 parts of a magnesium oxide expanding agent, 10-20 parts of a powder polycarboxylic acid water reducing agent, 10-20 parts of a thickening agent and 10-20 parts of a slow controlled release exciting agent. The concrete is prepared from the following components in parts by weight: 0.2-0.5 part of a powder polycarboxylic acid water reducer, 0.1-0.3 part of a thickening agent, 3-5 parts of a sustained-release exciting agent and the balance of fly ash. The sustained and controlled release type grouting reinforcement material for the soft broken surrounding rock, provided by the invention, is high in fluidity, long in retention time, high in setting and hardening speed, high in early strength, micro in volume expansion, good in durability, low in temperature sensitivity and high in cost performance.
本发明公开了一种软弱破碎围岩用缓控释型注浆加固材料，粉体材料包括普通硅酸盐水泥、粉煤灰、氧化镁膨胀剂、粉体聚羧酸减水剂、增稠剂与缓控释激发剂，各组分按质量份数组成为：普通硅酸盐水泥300～400份，氧化镁膨胀剂50～80份，粉体聚羧酸减水剂0.2～0.5份，增稠剂0.1～0.3份，缓控释激发剂3～5份，其余为粉煤灰。本发明提供的软弱破碎围岩用缓控释型注浆加固材料流动性大、保持时间长，凝结硬化速度快、早期强度高，体积微膨胀、耐久性好，温度敏感性低，性价比高。
Sustained and controlled release type grouting reinforcement material for soft broken surrounding rock and application method of sustained and controlled release type grouting reinforcement material
The invention discloses a slow controlled release grouting reinforcement material for weak broken surrounding rock, and the powder material comprises the following components in parts by mass: 300-400 parts of ordinary Portland cement, 50-80 parts of fly ash, 10-20 parts of a magnesium oxide expanding agent, 10-20 parts of a powder polycarboxylic acid water reducing agent, 10-20 parts of a thickening agent and 10-20 parts of a slow controlled release exciting agent. The concrete is prepared from the following components in parts by weight: 0.2-0.5 part of a powder polycarboxylic acid water reducer, 0.1-0.3 part of a thickening agent, 3-5 parts of a sustained-release exciting agent and the balance of fly ash. The sustained and controlled release type grouting reinforcement material for the soft broken surrounding rock, provided by the invention, is high in fluidity, long in retention time, high in setting and hardening speed, high in early strength, micro in volume expansion, good in durability, low in temperature sensitivity and high in cost performance.
本发明公开了一种软弱破碎围岩用缓控释型注浆加固材料，粉体材料包括普通硅酸盐水泥、粉煤灰、氧化镁膨胀剂、粉体聚羧酸减水剂、增稠剂与缓控释激发剂，各组分按质量份数组成为：普通硅酸盐水泥300～400份，氧化镁膨胀剂50～80份，粉体聚羧酸减水剂0.2～0.5份，增稠剂0.1～0.3份，缓控释激发剂3～5份，其余为粉煤灰。本发明提供的软弱破碎围岩用缓控释型注浆加固材料流动性大、保持时间长，凝结硬化速度快、早期强度高，体积微膨胀、耐久性好，温度敏感性低，性价比高。
Sustained and controlled release type grouting reinforcement material for soft broken surrounding rock and application method of sustained and controlled release type grouting reinforcement material
一种软弱破碎围岩用缓控释型注浆加固材料及其应用方法
WANG WEI (author) / ZHAO SHUANG (author) / HONG JINXIANG (author) / RAN QIANPING (author) / QIAO MIN (author) / ZENG LUPING (author) / CHEN JUNSONG (author) / TANG JINHUI (author) / HU ZHANGLI (author) / LIU JIAPING (author)
2023-12-26
Patent
Electronic Resource
Chinese
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