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A platform for research: civil engineering, architecture and urbanism
High-efficiency concrete water reducing agent and high-compressive-strength recycled concrete
The invention relates to an efficient concrete water reducing agent and recycled concrete with high compressive strength, and particularly discloses a method for preparing a long-chain macromolecular water reducing agent by taking acrylic acid, maleic anhydride and amino-terminated polyoxyethylene ether as reaction raw materials, adding the long-chain macromolecular water reducing agent into recycled aggregate, and mixing with a gel material to obtain the high-compressive-strength recycled concrete. The 28d compressive strength of the obtained recycled concrete is 43.1 MPa, the initial slump reaches up to 223 mm, the slump loss is only 6.31% after 60 min, and the recycled concrete system is free of segregation and bleeding.
本发明涉及一种高效混凝土减水剂和高抗压强度再生混凝土，具体公开了：以丙烯酸、顺丁烯二酸酐以及端氨基聚氧乙烯醚作为反应原料，制成长链大分子减水剂，长链大分子减水剂加入至再生骨料中，与凝胶材料拌混，所得的再生混凝土的28d抗压强度为43.1MPa，初始坍落度高达223mm，60min后坍落度仅损失6.31％，再生混凝土体系不离析、不泌水。
High-efficiency concrete water reducing agent and high-compressive-strength recycled concrete
The invention relates to an efficient concrete water reducing agent and recycled concrete with high compressive strength, and particularly discloses a method for preparing a long-chain macromolecular water reducing agent by taking acrylic acid, maleic anhydride and amino-terminated polyoxyethylene ether as reaction raw materials, adding the long-chain macromolecular water reducing agent into recycled aggregate, and mixing with a gel material to obtain the high-compressive-strength recycled concrete. The 28d compressive strength of the obtained recycled concrete is 43.1 MPa, the initial slump reaches up to 223 mm, the slump loss is only 6.31% after 60 min, and the recycled concrete system is free of segregation and bleeding.
本发明涉及一种高效混凝土减水剂和高抗压强度再生混凝土，具体公开了：以丙烯酸、顺丁烯二酸酐以及端氨基聚氧乙烯醚作为反应原料，制成长链大分子减水剂，长链大分子减水剂加入至再生骨料中，与凝胶材料拌混，所得的再生混凝土的28d抗压强度为43.1MPa，初始坍落度高达223mm，60min后坍落度仅损失6.31％，再生混凝土体系不离析、不泌水。
High-efficiency concrete water reducing agent and high-compressive-strength recycled concrete
高效混凝土减水剂和高抗压强度再生混凝土
WANG BIAO (author) / SHAO XINCHAO (author) / TIAN ZHEN (author) / ZHANG JIE (author) / LIU CHANGJIANG (author) / FU DONGYANG (author) / LIU HAOYI (author) / SHAO HAIDONG (author) / LI CHONGWEI (author)
2023-10-27
Patent
Electronic Resource
Chinese
IPC:
C08G
MACROMOLECULAR COMPOUNDS OBTAINED OTHERWISE THAN BY REACTIONS ONLY INVOLVING CARBON-TO-CARBON UNSATURATED BONDS
,
Makromolekulare Verbindungen, anders erhalten als durch Reaktionen, an denen nur ungesättigte Kohlenstoff-Kohlenstoff-Bindungen beteiligt sind
/
C04B
Kalk
,
LIME
/
C08F
MACROMOLECULAR COMPOUNDS OBTAINED BY REACTIONS ONLY INVOLVING CARBON-TO-CARBON UNSATURATED BONDS
,
Makromolekulare Verbindungen, erhalten durch Reaktionen, an denen nur ungesättigte Kohlenstoff-Kohlenstoff-Bindungen beteiligt sind
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