A platform for research: civil engineering, architecture and urbanism
A platform for research: civil engineering, architecture and urbanism
Tuff stone powder baking-free brick and preparation method thereof
The invention discloses a tuff powder baking-free brick, which comprises a cementing material, aggregate and water according to a ratio of 1: 14.2: 1.8, the cementing material comprises cement and recycled micro powder, the recycled micro powder comprises sodium sulfate, the aggregate comprises sand washing mud and recycled fine aggregate, the cement accounts for 85-95% of the cementing material, the recycled micro powder accounts for 5-15% of the cementing material, and the sodium sulfate accounts for 2-5% of the recycled micro powder; wherein the sand washing mud accounts for 40-60% of the aggregate, and the recycled fine aggregate accounts for 40-60% of the aggregate. The invention further discloses a preparation method of the tuff stone powder baking-free brick. The preparation method comprises the steps of first-time mixing and stirring, second-time mixing and stirring, third-time mixing and stirring and static pressure forming. The baking-free brick prepared from the cementing material obtained by mixing the cement and the sodium sulfate alkali-activated regenerated micro powder has very good compressive strength and relatively low water absorption, the problems of land occupation and environmental pollution of construction wastes are solved, solid waste resources can be recycled, and sustainable development of the resources is realized.
本发明公开了一种凝灰岩石粉免烧砖，包括胶凝材料：骨料：水＝1：14.2：1.8，其中胶凝材料包括水泥和再生微粉，再生微粉包括硫酸钠，骨料包括洗沙泥和再生细骨料，水泥占胶凝材料的85～95％，再生微粉占胶凝材料的5～15％，硫酸钠是再生微粉的2～5％；其中，洗砂泥占骨料的40～60％，再生细骨料占骨料的40～60％。本发明还公开了凝灰岩石粉免烧砖的制备方法，包括一次混搅、二次混搅、三次混搅和静压成型。本发明使用水泥与硫酸钠碱性激发再生微粉混合得到胶凝材料制备免烧砖具有很好的抗压强度、较低的吸水率，既解决了建筑垃圾占地问题和污染环境问题，又能进行固废资源的再利用，实现了资源的可持续发展。
Tuff stone powder baking-free brick and preparation method thereof
The invention discloses a tuff powder baking-free brick, which comprises a cementing material, aggregate and water according to a ratio of 1: 14.2: 1.8, the cementing material comprises cement and recycled micro powder, the recycled micro powder comprises sodium sulfate, the aggregate comprises sand washing mud and recycled fine aggregate, the cement accounts for 85-95% of the cementing material, the recycled micro powder accounts for 5-15% of the cementing material, and the sodium sulfate accounts for 2-5% of the recycled micro powder; wherein the sand washing mud accounts for 40-60% of the aggregate, and the recycled fine aggregate accounts for 40-60% of the aggregate. The invention further discloses a preparation method of the tuff stone powder baking-free brick. The preparation method comprises the steps of first-time mixing and stirring, second-time mixing and stirring, third-time mixing and stirring and static pressure forming. The baking-free brick prepared from the cementing material obtained by mixing the cement and the sodium sulfate alkali-activated regenerated micro powder has very good compressive strength and relatively low water absorption, the problems of land occupation and environmental pollution of construction wastes are solved, solid waste resources can be recycled, and sustainable development of the resources is realized.
本发明公开了一种凝灰岩石粉免烧砖，包括胶凝材料：骨料：水＝1：14.2：1.8，其中胶凝材料包括水泥和再生微粉，再生微粉包括硫酸钠，骨料包括洗沙泥和再生细骨料，水泥占胶凝材料的85～95％，再生微粉占胶凝材料的5～15％，硫酸钠是再生微粉的2～5％；其中，洗砂泥占骨料的40～60％，再生细骨料占骨料的40～60％。本发明还公开了凝灰岩石粉免烧砖的制备方法，包括一次混搅、二次混搅、三次混搅和静压成型。本发明使用水泥与硫酸钠碱性激发再生微粉混合得到胶凝材料制备免烧砖具有很好的抗压强度、较低的吸水率，既解决了建筑垃圾占地问题和污染环境问题，又能进行固废资源的再利用，实现了资源的可持续发展。
Tuff stone powder baking-free brick and preparation method thereof
一种凝灰岩石粉免烧砖及其制备方法
HE BAOPING (author) / ZHU WEIDONG (author) / PAN JIE (author) / HE XINQIANG (author) / ZHANG DACAI (author) / YU WENZHI (author)
2023-08-25
Patent
Electronic Resource
Chinese
IPC:
C04B
Kalk
,
LIME
| European Patent Office | 2023
Powder solid waste granulation baking-free brick and preparation method thereof
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