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Rock similar material containing micron-sized cracks and preparation method thereof
The invention relates to the field of rock seepage tests, and particularly discloses a micron-sized crack-containing rock similar material and a preparation method thereof, and the preparation method comprises the following steps: stirring and mixing quartz powder, a cementing material and an early strength agent to obtain a uniformly mixed dry material; wherein the cementing material is a mixture of white Portland cement, silica fume powder and amorphous nano silicon dioxide; adding part of water into the uniformly mixed dry material, stirring, then increasing the stirring speed, adding a water reducing agent and the balance of water, and uniformly mixing to obtain slurry; pouring the slurry into a mold, pre-pressing, standing, and demolding to obtain a sample; the sample is wrapped with a waterproof material and placed in a dry environment for maintenance, and the rock similar material containing the micron-sized cracks is obtained. The prepared rock similar material has a micron-sized crack network and also shows high strength and brittle failure characteristics, and provides possibility and convenience for researching seepage and failure characteristics of brittle hard rocks under the seepage-force coupling action.
本申请涉及岩石渗流试验领域，具体公开了一种含微米级裂纹的岩石相似材料及制备方法，制备方法包括以下步骤：将石英粉、胶凝材料和早强剂搅拌混合，得到混匀干料，其中胶凝材料为白色硅酸盐水泥、硅灰粉和无定形纳米二氧化硅的混合物；向所述混匀干料中加入部分的水并搅拌，随后提高搅拌速度并加入减水剂和余量的水，混匀后得到浆体；将所述浆体浇入模具，预压后静置，脱模后得到试样；将所述试样用隔水材料包裹，置于干燥环境养护，得到含微米级裂纹的岩石相似材料。制备得到的岩石相似材料具有微米级裂纹网络，同时表现出高强度和脆性破坏特征，为研究脆性硬岩在渗流‑力耦合作用下的渗流与破坏特性提供了可能性和便捷性。
Rock similar material containing micron-sized cracks and preparation method thereof
The invention relates to the field of rock seepage tests, and particularly discloses a micron-sized crack-containing rock similar material and a preparation method thereof, and the preparation method comprises the following steps: stirring and mixing quartz powder, a cementing material and an early strength agent to obtain a uniformly mixed dry material; wherein the cementing material is a mixture of white Portland cement, silica fume powder and amorphous nano silicon dioxide; adding part of water into the uniformly mixed dry material, stirring, then increasing the stirring speed, adding a water reducing agent and the balance of water, and uniformly mixing to obtain slurry; pouring the slurry into a mold, pre-pressing, standing, and demolding to obtain a sample; the sample is wrapped with a waterproof material and placed in a dry environment for maintenance, and the rock similar material containing the micron-sized cracks is obtained. The prepared rock similar material has a micron-sized crack network and also shows high strength and brittle failure characteristics, and provides possibility and convenience for researching seepage and failure characteristics of brittle hard rocks under the seepage-force coupling action.
本申请涉及岩石渗流试验领域，具体公开了一种含微米级裂纹的岩石相似材料及制备方法，制备方法包括以下步骤：将石英粉、胶凝材料和早强剂搅拌混合，得到混匀干料，其中胶凝材料为白色硅酸盐水泥、硅灰粉和无定形纳米二氧化硅的混合物；向所述混匀干料中加入部分的水并搅拌，随后提高搅拌速度并加入减水剂和余量的水，混匀后得到浆体；将所述浆体浇入模具，预压后静置，脱模后得到试样；将所述试样用隔水材料包裹，置于干燥环境养护，得到含微米级裂纹的岩石相似材料。制备得到的岩石相似材料具有微米级裂纹网络，同时表现出高强度和脆性破坏特征，为研究脆性硬岩在渗流‑力耦合作用下的渗流与破坏特性提供了可能性和便捷性。
Rock similar material containing micron-sized cracks and preparation method thereof
一种含微米级裂纹的岩石相似材料及制备方法
HUANG HAN (author) / LI SHAOHUA (author)
2024-12-10
Patent
Electronic Resource
Chinese
IPC:
C04B
Kalk
,
LIME
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