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A platform for research: civil engineering, architecture and urbanism
Machine-made sand modified self-compacting concrete and preparation method thereof
The machine-made sand modified self-compacting concrete is prepared from the following components in parts by weight: 200 to 300 parts of coarse aggregate, 500 to 700 parts of machine-made sand, 250 to 320 parts of cement, 200 to 300 parts of water, 30 to 50 parts of fly ash, 35 to 55 parts of mineral powder, 10 to 20 parts of water reducing agent and 12 to 18 parts of compacting enhancer. According to the invention, the machine-made sand is adopted as a concrete raw material, and the machine-made sand is modified by considering that the machine-made sand is higher in roughness and irregular in shape compared with river sand, and the compact reinforcing agent is matched and matched with the preparation method, so that the concrete adopting the machine-made sand raw material also has excellent performance.
本发明公开了一种机制砂改性自密实混凝土，包括下述重量份组份：粗骨料200‑300份、机制砂500‑700份、水泥250‑320份、水200‑300份、粉煤灰30‑50份、矿粉35‑55份、减水剂10‑20份、密实增强剂12‑18份。本发明采用机制砂作为混凝土原料，考虑到机制砂相比河砂，粗糙度高，形状不规则，本发明对机制砂做了改性处理，并且配比了密实增强剂，配合制备方法，使得采用机制砂原料的混凝土同样具备优秀的性能。
Machine-made sand modified self-compacting concrete and preparation method thereof
The machine-made sand modified self-compacting concrete is prepared from the following components in parts by weight: 200 to 300 parts of coarse aggregate, 500 to 700 parts of machine-made sand, 250 to 320 parts of cement, 200 to 300 parts of water, 30 to 50 parts of fly ash, 35 to 55 parts of mineral powder, 10 to 20 parts of water reducing agent and 12 to 18 parts of compacting enhancer. According to the invention, the machine-made sand is adopted as a concrete raw material, and the machine-made sand is modified by considering that the machine-made sand is higher in roughness and irregular in shape compared with river sand, and the compact reinforcing agent is matched and matched with the preparation method, so that the concrete adopting the machine-made sand raw material also has excellent performance.
本发明公开了一种机制砂改性自密实混凝土，包括下述重量份组份：粗骨料200‑300份、机制砂500‑700份、水泥250‑320份、水200‑300份、粉煤灰30‑50份、矿粉35‑55份、减水剂10‑20份、密实增强剂12‑18份。本发明采用机制砂作为混凝土原料，考虑到机制砂相比河砂，粗糙度高，形状不规则，本发明对机制砂做了改性处理，并且配比了密实增强剂，配合制备方法，使得采用机制砂原料的混凝土同样具备优秀的性能。
Machine-made sand modified self-compacting concrete and preparation method thereof
一种机制砂改性自密实混凝土及其制备方法
HU CHENGHUA (author) / MIAO QIAOGEN (author) / TENG HONGJUN (author) / TAO RUIRUI (author) / GAO SHUN (author) / WANG WUFENG (author)
2022-05-13
Patent
Electronic Resource
Chinese
IPC:
C04B
Kalk
,
LIME
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