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Coal mine/coal chemical solid waste synthetic concrete material and preparation method thereof
The invention discloses a coal mine/coal chemical solid waste synthetic concrete material and a preparation method thereof. The concrete material is prepared from the following raw materials in parts by weight: 100 to 120 parts of coarse-particle-size coal gangue, 40 to 60 parts of fine-particle-size coal gangue, 15 to 20 parts of cement, 10 to 15 parts of fly ash, 12 to 16 parts of slag, 2 to 3 parts of alkali activator, 1 to 2 parts of water glass, 1 to 2 parts of additive A, 1.2 to 1.5 parts of silica fume, 0.8 to 1.0 part of magnesium sulfate, 0.8 to 1.0 part of lime, 0.8 to 1.0 part of gypsum, 0.5 to 0.8 part of additive B, 0.5 to 0.6 part of industrial calcium chloride, 0.1 to 0.2 part of sodium hexametaphosphate and 15 to 20 parts of water. The preparation method comprises the following steps: pouring the coal gangue with two particle sizes into a stirrer, adding the additive B, stirring, adding the other raw materials, uniformly stirring, adding the exciting agent solution for multiple times, injecting the uniformly mixed flowing concrete into a mold, covering with a layer of preservative film, and curing. The prepared coal gangue concrete is low in cost, the 28d strength reaches up to 46.3 MPa, the preparation technology is simple, the production efficiency is high, operation is easy and stable, control is convenient, and automatic operation is easy to achieve.
本发明公开了一种煤矿/煤化工固废合成混凝土材料及其制备方法，该混凝土材料由以下重量份的原料组成：粗粒径煤矸石100~120份、细粒径煤矸石40~60份、水泥15~20份、粉煤灰10~15份、矿渣12~16份、碱性激发剂2~3份、水玻璃1~2份、添加剂A 1~2份、硅灰1.2~1.5份、硫酸镁0.8~1.0份、石灰0.8~1.0份、石膏0.8~1.0份、添加剂B 0.5~0.8份、工业氯化钙0.5~0.6份、六偏磷酸钠0.1~0.2份及水15~20份。其制备方法是将两种粒径的的煤矸石倒入搅拌机中，加入添加剂B搅拌，再将其他原料加入搅拌均匀，然后将激发剂溶液分多次加入，将混合均匀的流动态混凝土注入模具中，覆盖一层保鲜膜并养护。本发明所制备的煤矸石混凝土成本低，28d强度高达46.3MPa,且制备工艺简单、生产效率较高、操作简单稳定、控制方便、容易实现自动化作业。
Coal mine/coal chemical solid waste synthetic concrete material and preparation method thereof
The invention discloses a coal mine/coal chemical solid waste synthetic concrete material and a preparation method thereof. The concrete material is prepared from the following raw materials in parts by weight: 100 to 120 parts of coarse-particle-size coal gangue, 40 to 60 parts of fine-particle-size coal gangue, 15 to 20 parts of cement, 10 to 15 parts of fly ash, 12 to 16 parts of slag, 2 to 3 parts of alkali activator, 1 to 2 parts of water glass, 1 to 2 parts of additive A, 1.2 to 1.5 parts of silica fume, 0.8 to 1.0 part of magnesium sulfate, 0.8 to 1.0 part of lime, 0.8 to 1.0 part of gypsum, 0.5 to 0.8 part of additive B, 0.5 to 0.6 part of industrial calcium chloride, 0.1 to 0.2 part of sodium hexametaphosphate and 15 to 20 parts of water. The preparation method comprises the following steps: pouring the coal gangue with two particle sizes into a stirrer, adding the additive B, stirring, adding the other raw materials, uniformly stirring, adding the exciting agent solution for multiple times, injecting the uniformly mixed flowing concrete into a mold, covering with a layer of preservative film, and curing. The prepared coal gangue concrete is low in cost, the 28d strength reaches up to 46.3 MPa, the preparation technology is simple, the production efficiency is high, operation is easy and stable, control is convenient, and automatic operation is easy to achieve.
本发明公开了一种煤矿/煤化工固废合成混凝土材料及其制备方法，该混凝土材料由以下重量份的原料组成：粗粒径煤矸石100~120份、细粒径煤矸石40~60份、水泥15~20份、粉煤灰10~15份、矿渣12~16份、碱性激发剂2~3份、水玻璃1~2份、添加剂A 1~2份、硅灰1.2~1.5份、硫酸镁0.8~1.0份、石灰0.8~1.0份、石膏0.8~1.0份、添加剂B 0.5~0.8份、工业氯化钙0.5~0.6份、六偏磷酸钠0.1~0.2份及水15~20份。其制备方法是将两种粒径的的煤矸石倒入搅拌机中，加入添加剂B搅拌，再将其他原料加入搅拌均匀，然后将激发剂溶液分多次加入，将混合均匀的流动态混凝土注入模具中，覆盖一层保鲜膜并养护。本发明所制备的煤矸石混凝土成本低，28d强度高达46.3MPa,且制备工艺简单、生产效率较高、操作简单稳定、控制方便、容易实现自动化作业。
Coal mine/coal chemical solid waste synthetic concrete material and preparation method thereof
一种煤矿/煤化工固废合成混凝土材料及其制备方法
FENG JING (author) / QU CHENKAI (author) / LEE GUN-WOO (author) / ZHANG YUXUAN (author) / YAN GUANGMAO (author) / TANIKURA (author) / SONG JIANBO (author) / WANG JUN (author)
2022-11-04
Patent
Electronic Resource
Chinese
IPC:
C04B
Kalk
,
LIME
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