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A platform for research: civil engineering, architecture and urbanism
Compression-resistant and carbonization-resistant recycled concrete and preparation method thereof
The invention relates to the technical field of concrete, in particular to compression-resistant and carbonization-resistant recycled concrete and a preparation method thereof. The compression-resistant and carbonization-resistant recycled concrete is prepared from the following raw material components in parts by weight: 250 to 280 parts of cement, 45 to 70 parts of silica fume, 40 to 55 parts of fly ash, 1050 to 1200 parts of modified recycled coarse aggregate, 680 to 760 parts of sand, 3 to 5 parts of a water reducing agent and 140 to 165 parts of water, the preparation method of the modified recycled coarse aggregate comprises the following steps: S1, preparing a modification liquid which comprises the following components in parts by weight: 15-25 parts of zeolite powder, 5-10 parts of silicon dioxide aerogel, 20-35 parts of water-absorbent resin and 500-850 parts of water; s2, the recycled coarse aggregate is soaked in the modification liquid for 45-70 min, taken out, drained and roasted for 1-3 h at the temperature of 150-180 DEG C, and the modified recycled coarse aggregate is obtained. The compression-resistant and carbonization-resistant recycled concrete prepared by the invention has good carbonization resistance and compression resistance.
本申请涉及混凝土技术领域，更具体地说，它涉及一种抗压抗碳化再生混凝土及其制备方法。一种抗压抗碳化再生混凝土，抗压抗碳化再生混凝土的原料中包含如下重量份的组分：水泥250‑280份、硅灰45‑70份、粉煤灰40‑55份、改性再生粗骨料1050‑1200份、砂680‑760份、减水剂3‑5份、水140‑165份；改性再生粗骨料的制备方法，包括如下步骤：S1，制备改性液，改性液中包含如下重量份的组分：沸石粉15‑25份、二氧化硅气凝胶5‑10份、吸水树脂20‑35份、水500‑850份；S2，将再生粗骨料在改性液中浸泡处理45‑70min，取出沥干，在150‑180℃下焙烧1‑3h，得到改性再生粗骨料。本申请制得的抗压抗碳化再生混凝土具有良好的抗碳化性能和抗压性能。
Compression-resistant and carbonization-resistant recycled concrete and preparation method thereof
The invention relates to the technical field of concrete, in particular to compression-resistant and carbonization-resistant recycled concrete and a preparation method thereof. The compression-resistant and carbonization-resistant recycled concrete is prepared from the following raw material components in parts by weight: 250 to 280 parts of cement, 45 to 70 parts of silica fume, 40 to 55 parts of fly ash, 1050 to 1200 parts of modified recycled coarse aggregate, 680 to 760 parts of sand, 3 to 5 parts of a water reducing agent and 140 to 165 parts of water, the preparation method of the modified recycled coarse aggregate comprises the following steps: S1, preparing a modification liquid which comprises the following components in parts by weight: 15-25 parts of zeolite powder, 5-10 parts of silicon dioxide aerogel, 20-35 parts of water-absorbent resin and 500-850 parts of water; s2, the recycled coarse aggregate is soaked in the modification liquid for 45-70 min, taken out, drained and roasted for 1-3 h at the temperature of 150-180 DEG C, and the modified recycled coarse aggregate is obtained. The compression-resistant and carbonization-resistant recycled concrete prepared by the invention has good carbonization resistance and compression resistance.
本申请涉及混凝土技术领域，更具体地说，它涉及一种抗压抗碳化再生混凝土及其制备方法。一种抗压抗碳化再生混凝土，抗压抗碳化再生混凝土的原料中包含如下重量份的组分：水泥250‑280份、硅灰45‑70份、粉煤灰40‑55份、改性再生粗骨料1050‑1200份、砂680‑760份、减水剂3‑5份、水140‑165份；改性再生粗骨料的制备方法，包括如下步骤：S1，制备改性液，改性液中包含如下重量份的组分：沸石粉15‑25份、二氧化硅气凝胶5‑10份、吸水树脂20‑35份、水500‑850份；S2，将再生粗骨料在改性液中浸泡处理45‑70min，取出沥干，在150‑180℃下焙烧1‑3h，得到改性再生粗骨料。本申请制得的抗压抗碳化再生混凝土具有良好的抗碳化性能和抗压性能。
Compression-resistant and carbonization-resistant recycled concrete and preparation method thereof
一种抗压抗碳化再生混凝土及其制备方法
WANG LEILIANG (author) / GU HAO (author) / YIN JIAN (author) / HUANG YIWEI (author)
2023-12-22
Patent
Electronic Resource
Chinese
IPC:
C04B
Kalk
,
LIME
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