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Recycled fine aggregate high-strength self-compacting concrete
The invention discloses recycled fine aggregate high-strength self-compacting concrete, which is prepared from the following raw materials in parts by weight: 180 to 200 parts of cement, 350 to 400 parts of stone, 250 to 300 parts of coarse aggregate, 190 to 220 parts of recycled fine aggregate, 40 to 60 parts of steel slag, 50 to 70 parts of fly ash, 15 to 20 parts of filler, 30 to 50 parts of modified zeolite powder, 5 to 10 parts of water reducing agent and 100 to 120 parts of water. By using the recycled fine aggregate, the use amount of natural fine aggregate such as river sand is reduced, the cost is saved, the resource loss is reduced, the modified zeolite powder reacts with cement to generate calcium silicate hydrate, cement hydration is promoted, the viscosity is improved, the use amount of the cement can be remarkably reduced, the hardness of the zeolite powder is obviously greater than that of the cement, the hardness of the concrete material is obviously improved, the strength of the cement is further improved, the cost performance is excellent by adding the steel slag, and the cement is suitable for production and use.
本发明公开了一种再生细骨料高强度自密实混凝土，以重量份计，其原料组成包括：水泥180‑200份、石子350‑400份、粗骨料250‑300份、再生细骨料190‑220份、钢渣40‑60份、粉煤灰50‑70份、填料15‑20份、改性沸石粉30‑50份、减水剂5‑10份和水100‑120份。通过再生细骨料的使用减小河沙等天然细骨料的用量，节约成本，降低资源损耗，通过改性沸石粉与水泥中反应生成硅酸钙水化物，促进水泥水化，提高粘性，可显著减少水泥用量，且沸石粉的硬度明显大于水泥的硬度，显著提高混凝土材料的硬度，有助于提高混凝土产品强度，并通过加入钢渣进一步提高水泥强度，性价比优良，适于生产使用。
Recycled fine aggregate high-strength self-compacting concrete
The invention discloses recycled fine aggregate high-strength self-compacting concrete, which is prepared from the following raw materials in parts by weight: 180 to 200 parts of cement, 350 to 400 parts of stone, 250 to 300 parts of coarse aggregate, 190 to 220 parts of recycled fine aggregate, 40 to 60 parts of steel slag, 50 to 70 parts of fly ash, 15 to 20 parts of filler, 30 to 50 parts of modified zeolite powder, 5 to 10 parts of water reducing agent and 100 to 120 parts of water. By using the recycled fine aggregate, the use amount of natural fine aggregate such as river sand is reduced, the cost is saved, the resource loss is reduced, the modified zeolite powder reacts with cement to generate calcium silicate hydrate, cement hydration is promoted, the viscosity is improved, the use amount of the cement can be remarkably reduced, the hardness of the zeolite powder is obviously greater than that of the cement, the hardness of the concrete material is obviously improved, the strength of the cement is further improved, the cost performance is excellent by adding the steel slag, and the cement is suitable for production and use.
本发明公开了一种再生细骨料高强度自密实混凝土，以重量份计，其原料组成包括：水泥180‑200份、石子350‑400份、粗骨料250‑300份、再生细骨料190‑220份、钢渣40‑60份、粉煤灰50‑70份、填料15‑20份、改性沸石粉30‑50份、减水剂5‑10份和水100‑120份。通过再生细骨料的使用减小河沙等天然细骨料的用量，节约成本，降低资源损耗，通过改性沸石粉与水泥中反应生成硅酸钙水化物，促进水泥水化，提高粘性，可显著减少水泥用量，且沸石粉的硬度明显大于水泥的硬度，显著提高混凝土材料的硬度，有助于提高混凝土产品强度，并通过加入钢渣进一步提高水泥强度，性价比优良，适于生产使用。
Recycled fine aggregate high-strength self-compacting concrete
一种再生细骨料高强度自密实混凝土
ZHOU XIANG (author) / WANG JING (author)
2021-06-08
Patent
Electronic Resource
Chinese
IPC:
C04B
Kalk
,
LIME
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