Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
The invention belongs to the field of preparation of natural hydraulic lime, and discloses a method for preparing natural hydraulic lime from potassium feldspar and limestone. The method comprises the following steps of: step S1, uniformly mixing potassium feldspar and limestone according to a mass ratio of 1: 3 by wet mixing; S2, preparing the mixed material in the step S1 into a first sample according to a water-cement ratio of 0.27; S3, naturally drying the first sample in the step S2 at room temperature, putting the first sample into a muffle furnace, and calcining the first sample at 950 DEG C; and S4, curing the first sample in the step S3. According to the method, the potassium feldspar and limestone are used as raw materials and calcined at 950 DEG C for 6 hours, the content of CaO, 2CaO. SiO2 and 2CaO. Al2O3.SiO2 in a product is similar to that of the components of European hydraulic lime NHL3.5, and the blank about preparation of NHL3.5 hydraulic lime in China is filled.
本发明涉及天然水硬性石灰的制备领域，具体公开了一种利用钾长石和石灰石制备天然水硬性石灰的方法,包括以下步骤：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；步骤S2、按照0.27的水灰比将步骤S1中的混料制备成第一试样；步骤S3、在室温下将步骤S2中的第一试样自然干燥后放入马弗炉，在950℃下煅烧；步骤S4、对步骤S3中的第一试样进行养护，本发明以钾长石和石灰石为原料950℃煅烧6 h产物中的CaO、2CaO·SiO2和2CaO·Al2O3·SiO2的含量与欧洲水硬性石灰NHL3.5的成分相近，填补了我国关于NHL3.5水硬性石灰制备的空白。
The invention belongs to the field of preparation of natural hydraulic lime, and discloses a method for preparing natural hydraulic lime from potassium feldspar and limestone. The method comprises the following steps of: step S1, uniformly mixing potassium feldspar and limestone according to a mass ratio of 1: 3 by wet mixing; S2, preparing the mixed material in the step S1 into a first sample according to a water-cement ratio of 0.27; S3, naturally drying the first sample in the step S2 at room temperature, putting the first sample into a muffle furnace, and calcining the first sample at 950 DEG C; and S4, curing the first sample in the step S3. According to the method, the potassium feldspar and limestone are used as raw materials and calcined at 950 DEG C for 6 hours, the content of CaO, 2CaO. SiO2 and 2CaO. Al2O3.SiO2 in a product is similar to that of the components of European hydraulic lime NHL3.5, and the blank about preparation of NHL3.5 hydraulic lime in China is filled.
本发明涉及天然水硬性石灰的制备领域，具体公开了一种利用钾长石和石灰石制备天然水硬性石灰的方法,包括以下步骤：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；步骤S2、按照0.27的水灰比将步骤S1中的混料制备成第一试样；步骤S3、在室温下将步骤S2中的第一试样自然干燥后放入马弗炉，在950℃下煅烧；步骤S4、对步骤S3中的第一试样进行养护，本发明以钾长石和石灰石为原料950℃煅烧6 h产物中的CaO、2CaO·SiO2和2CaO·Al2O3·SiO2的含量与欧洲水硬性石灰NHL3.5的成分相近，填补了我国关于NHL3.5水硬性石灰制备的空白。
Method for preparing natural hydraulic lime from potassium feldspar and limestone
一种利用钾长石和石灰石制备天然水硬性石灰的方法
BAI YUXIN (Autor:in)
30.07.2021
Patent
Elektronische Ressource
Chinesisch
IPC:
C04B
Kalk
,
LIME
Method for preparing natural hydraulic lime by using limestone and quartz powder
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