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High-strength gypsum cementing material based on anhydrite and limestone and preparation method of high-strength gypsum cementing material
The invention discloses a high-strength gypsum cementing material based on anhydrite and limestone and a preparation method of the high-strength gypsum cementing material. The high-strength gypsum cementing material comprises the following raw material components in parts by weight: 60-70 parts of high-strength gypsum, 5-30 parts of anhydrite and 2-30 parts of limestone. The anhydrite is a cementing material which can only have high strength in a long age, wherein he early strength can be obviously reduced due to the fact that the amount of the doped anhydrite is too large, and the strength difference is low due to the fact that the internal structure of a test block is not tight enough. From thisperspective, the limestone is introduced to serve as inorganic filler, and gaps are filled with fine limestone particles within a certain range, so that the internal structure is more compact, so that the early strength is higher.
本发明公开了一种基于硬石膏和石灰石的高强石膏胶凝材料及其制备方法，包括原料组分以及原料组分的重量份如下：高强石膏60～70份、硬石膏5～30份、石灰石2～30份；引入的硬石膏是一种长龄期才能有较高强度的一种胶结材，掺入的硬石膏量过多，会明显降低早期强度，而强度差较是因为试块的内部结构不够紧密，从这个角度出发，引入石灰石作为无机填料，在一定范围内，较细的石灰石颗粒将空隙填满，使得内部结构更加紧密，如此实现早期的强度更大。
High-strength gypsum cementing material based on anhydrite and limestone and preparation method of high-strength gypsum cementing material
The invention discloses a high-strength gypsum cementing material based on anhydrite and limestone and a preparation method of the high-strength gypsum cementing material. The high-strength gypsum cementing material comprises the following raw material components in parts by weight: 60-70 parts of high-strength gypsum, 5-30 parts of anhydrite and 2-30 parts of limestone. The anhydrite is a cementing material which can only have high strength in a long age, wherein he early strength can be obviously reduced due to the fact that the amount of the doped anhydrite is too large, and the strength difference is low due to the fact that the internal structure of a test block is not tight enough. From thisperspective, the limestone is introduced to serve as inorganic filler, and gaps are filled with fine limestone particles within a certain range, so that the internal structure is more compact, so that the early strength is higher.
本发明公开了一种基于硬石膏和石灰石的高强石膏胶凝材料及其制备方法，包括原料组分以及原料组分的重量份如下：高强石膏60～70份、硬石膏5～30份、石灰石2～30份；引入的硬石膏是一种长龄期才能有较高强度的一种胶结材，掺入的硬石膏量过多，会明显降低早期强度，而强度差较是因为试块的内部结构不够紧密，从这个角度出发，引入石灰石作为无机填料，在一定范围内，较细的石灰石颗粒将空隙填满，使得内部结构更加紧密，如此实现早期的强度更大。
High-strength gypsum cementing material based on anhydrite and limestone and preparation method of high-strength gypsum cementing material
一种基于硬石膏和石灰石的高强石膏胶凝材料及其制备方法
CHEN LIANG (author) / CHEN TIANTIAN (author) / TANG JIN (author) / TANG YONGBO (author) / WAN JIANDONG (author)
2020-11-03
Patent
Electronic Resource
Chinese
IPC:
C04B
Kalk
,
LIME
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