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Alkali-activated tuff cementing material and preparation method thereof
The invention discloses an alkali-activated tuff cementing material and a preparation method thereof. The alkali-activated tuff cementing material comprises the following raw materials: tuff stone powder, a sodium hydroxide solution and a sodium silicate solution, wherein the concrete dosage of the tuff stone powder, the sodium hydroxide solution and the sodium silicate solution is that the mass ratio of the tuff stone powder to the sodium hydroxide solution to the sodium silicate solution is 25: 10: 1. The tuff stone powder is excited by the alkaline solution, so that the 7-day compressive strength of the hardened tuff stone powder serving as a cementing material reaches 36MPa which is 85 percent of the 7-day compressive strength of ordinary Portland cement; the density is 1720kg/m < 3 >and is 88 percent of the density of a common Portland cement sample. Calcination and steam curing are not needed in the preparation process, and the problems that tuff stone powder generated in the machine-made sand making process and other industrial production processes cannot be treated and pollutes the environment are effectively solved.
本发明公开了一种碱激发凝灰岩胶凝材料及其制备方法，原料包括:凝灰岩石粉、氢氧化钠溶液、硅酸钠溶液。凝灰岩石粉、氢氧化钠溶液、硅酸钠溶液的具体用量为凝灰岩石粉、氢氧化钠溶液、硅酸钠溶液的质量比为25:10:1。本发明通过碱溶液对凝灰岩石粉进行激发，可以使凝灰岩石粉作为胶凝材料硬化后7天抗压强度达到36MPa，为普通硅酸盐水泥的7天抗压强度的85％；密度为1720kg/m3，为普通硅酸盐水泥试样密度的88％。制备过程无需煅烧，无需蒸养，并且有效解决了机制砂制砂过程中以及其他的工业生产过程中产生的凝灰岩石粉无法处理且污染环境的问题。
Alkali-activated tuff cementing material and preparation method thereof
The invention discloses an alkali-activated tuff cementing material and a preparation method thereof. The alkali-activated tuff cementing material comprises the following raw materials: tuff stone powder, a sodium hydroxide solution and a sodium silicate solution, wherein the concrete dosage of the tuff stone powder, the sodium hydroxide solution and the sodium silicate solution is that the mass ratio of the tuff stone powder to the sodium hydroxide solution to the sodium silicate solution is 25: 10: 1. The tuff stone powder is excited by the alkaline solution, so that the 7-day compressive strength of the hardened tuff stone powder serving as a cementing material reaches 36MPa which is 85 percent of the 7-day compressive strength of ordinary Portland cement; the density is 1720kg/m < 3 >and is 88 percent of the density of a common Portland cement sample. Calcination and steam curing are not needed in the preparation process, and the problems that tuff stone powder generated in the machine-made sand making process and other industrial production processes cannot be treated and pollutes the environment are effectively solved.
本发明公开了一种碱激发凝灰岩胶凝材料及其制备方法，原料包括:凝灰岩石粉、氢氧化钠溶液、硅酸钠溶液。凝灰岩石粉、氢氧化钠溶液、硅酸钠溶液的具体用量为凝灰岩石粉、氢氧化钠溶液、硅酸钠溶液的质量比为25:10:1。本发明通过碱溶液对凝灰岩石粉进行激发，可以使凝灰岩石粉作为胶凝材料硬化后7天抗压强度达到36MPa，为普通硅酸盐水泥的7天抗压强度的85％；密度为1720kg/m3，为普通硅酸盐水泥试样密度的88％。制备过程无需煅烧，无需蒸养，并且有效解决了机制砂制砂过程中以及其他的工业生产过程中产生的凝灰岩石粉无法处理且污染环境的问题。
Alkali-activated tuff cementing material and preparation method thereof
一种碱激发凝灰岩胶凝材料及其制备方法
ZHANG TONGWEI (author) / YU ZIHAO (author)
2021-01-19
Patent
Electronic Resource
Chinese
IPC:
C04B
Kalk
,
LIME
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