A platform for research: civil engineering, architecture and urbanism
A platform for research: civil engineering, architecture and urbanism
The invention discloses a preparation method of hydraulic lime, wherein the preparation method specifically comprises the following steps: S1, uniformly mixing potassium feldspar and limestone according to a mass ratio of 1:3 by adopting wet mixing, and then preparing a sample with the size of 80*40*10 mm according to a water-cement ratio of 0.27:1; and S2, naturally drying at room temperature, putting into a muffle furnace, and respectively calcining at the temperature of 450-1350 DEG C for 2-8 hours. According to the invention, the potassium feldspar and the limestone are used as raw materials and are calcined at the temperature of 950 DEG C for different time to prepare the hydraulic lime, the component content of the hydraulic lime is similar to that of European hydraulic lime NHL3.5, and the hydraulic lime can replace the European hydraulic lime NHL3.5.
本发明公开了一种水硬性石灰的制备方法，具体包括以下步骤：S1、采用湿法混料，将钾长石和石灰石按照质量比1:3混合均匀后按照0.27：1的水灰比制备成80×40×10mm的试样；S2、在室温下自然干燥后放入马弗炉，在450‑1350℃下分别煅烧2‑8h。本发明通过以钾长石和石灰石为原材料，在950℃下煅烧不同时间制备水硬性石灰，其成分含量与欧洲水硬性石灰NHL3.5的成分相近，可代替欧洲水硬性石灰NHL3.5使用。
The invention discloses a preparation method of hydraulic lime, wherein the preparation method specifically comprises the following steps: S1, uniformly mixing potassium feldspar and limestone according to a mass ratio of 1:3 by adopting wet mixing, and then preparing a sample with the size of 80*40*10 mm according to a water-cement ratio of 0.27:1; and S2, naturally drying at room temperature, putting into a muffle furnace, and respectively calcining at the temperature of 450-1350 DEG C for 2-8 hours. According to the invention, the potassium feldspar and the limestone are used as raw materials and are calcined at the temperature of 950 DEG C for different time to prepare the hydraulic lime, the component content of the hydraulic lime is similar to that of European hydraulic lime NHL3.5, and the hydraulic lime can replace the European hydraulic lime NHL3.5.
本发明公开了一种水硬性石灰的制备方法，具体包括以下步骤：S1、采用湿法混料，将钾长石和石灰石按照质量比1:3混合均匀后按照0.27：1的水灰比制备成80×40×10mm的试样；S2、在室温下自然干燥后放入马弗炉，在450‑1350℃下分别煅烧2‑8h。本发明通过以钾长石和石灰石为原材料，在950℃下煅烧不同时间制备水硬性石灰，其成分含量与欧洲水硬性石灰NHL3.5的成分相近，可代替欧洲水硬性石灰NHL3.5使用。
| European Patent Office | 2023
| European Patent Office | 2023
| European Patent Office | 2023