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High-temperature-resistant concrete and preparation method thereof
The invention relates to the technical field of high-temperature-resistant concrete, and discloses high-temperature-resistant concrete and a preparation method thereof.The preparation method comprises the steps that porous concrete is prefabricated; performing autoclaved curing; maintaining with a sodium carbonate or potassium carbonate solution; and steel bars are implanted into the communicating holes of the concrete, and grouting materials are poured. The concrete is prepared from the following components: 500 to 900 parts of ferronickel slag aggregate, 150 to 400 parts of water granulated slag sand, 100 to 200 parts of cement clinker, 200 to 300 parts of lithium slag powder, 50 to 100 parts of mineral powder, 30 to 50 parts of rice hull ash, 30 to 50 parts of steel fiber, 5 to 20 parts of plant fiber, 50 to 100 parts of exciting agent, 160 to 180 parts of water and 4 to 8 parts of water reducing agent. On the basis that the strength of the concrete is not reduced, a channel is provided for transmission of water vapor at a high temperature through artificial pore forming of the steel fibers and the plant fibers, and the high-temperature resistance of the concrete is improved through autoclaved curing and carbonate solution curing to change the composition of a hydration product.
本发明涉及耐高温混凝土技术领域，公开了一种耐高温混凝土及其制备方法，步骤为：预制多孔混凝土；蒸压养护；碳酸钠或碳酸钾溶液养护；混凝土的连通孔中植入钢筋并灌注灌浆料。所述混凝土的组份为：镍铁渣骨料500~900份、水渣砂150~400份、水泥熟料100~200份、锂渣粉200~300份、矿粉50~100份、稻壳灰30~50份、钢纤维30~50份、植物纤维5~20份，激发剂50~100份，水160~180份，减水剂4~8份。本发明在不降低混凝土强度的基础上，通过钢纤维、植物纤维人为造孔，为高温下水蒸气的传输提供通道，并通过蒸压养护与碳酸盐溶液养护，改变水化产物组成，提高了混凝土的耐高温性能。
High-temperature-resistant concrete and preparation method thereof
The invention relates to the technical field of high-temperature-resistant concrete, and discloses high-temperature-resistant concrete and a preparation method thereof.The preparation method comprises the steps that porous concrete is prefabricated; performing autoclaved curing; maintaining with a sodium carbonate or potassium carbonate solution; and steel bars are implanted into the communicating holes of the concrete, and grouting materials are poured. The concrete is prepared from the following components: 500 to 900 parts of ferronickel slag aggregate, 150 to 400 parts of water granulated slag sand, 100 to 200 parts of cement clinker, 200 to 300 parts of lithium slag powder, 50 to 100 parts of mineral powder, 30 to 50 parts of rice hull ash, 30 to 50 parts of steel fiber, 5 to 20 parts of plant fiber, 50 to 100 parts of exciting agent, 160 to 180 parts of water and 4 to 8 parts of water reducing agent. On the basis that the strength of the concrete is not reduced, a channel is provided for transmission of water vapor at a high temperature through artificial pore forming of the steel fibers and the plant fibers, and the high-temperature resistance of the concrete is improved through autoclaved curing and carbonate solution curing to change the composition of a hydration product.
本发明涉及耐高温混凝土技术领域，公开了一种耐高温混凝土及其制备方法，步骤为：预制多孔混凝土；蒸压养护；碳酸钠或碳酸钾溶液养护；混凝土的连通孔中植入钢筋并灌注灌浆料。所述混凝土的组份为：镍铁渣骨料500~900份、水渣砂150~400份、水泥熟料100~200份、锂渣粉200~300份、矿粉50~100份、稻壳灰30~50份、钢纤维30~50份、植物纤维5~20份，激发剂50~100份，水160~180份，减水剂4~8份。本发明在不降低混凝土强度的基础上，通过钢纤维、植物纤维人为造孔，为高温下水蒸气的传输提供通道，并通过蒸压养护与碳酸盐溶液养护，改变水化产物组成，提高了混凝土的耐高温性能。
High-temperature-resistant concrete and preparation method thereof
一种耐高温混凝土及其制备方法
LI BAOLIANG (author) / ZHOU ZHANCHENG (author) / SUN WENBO (author) / LIU GUANGWU (author) / LU XUE (author) / CHEN WUWEI (author) / CHEN WEIHAO (author) / CHEN KENAN (author) / DONG YUN (author) / YAN JIAHENG (author)
2024-06-28
Patent
Electronic Resource
Chinese
IPC:
C04B
Kalk
,
LIME
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