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A platform for research: civil engineering, architecture and urbanism
Crystal nucleus early strength type polycarboxylic acid water reducing agent and preparation method thereof
The invention discloses a crystal nucleus early-strength polycarboxylate superplasticizer and a preparation method thereof, and belongs to the technical field of concrete admixtures. The water reducing agent is prepared from the following raw materials in parts by weight: 635-697 parts of a base material, 70-98 parts of a mixed material A, 58-64 parts of a mixed material B and 10-16 parts of a neutralizing material. According to the invention, the synergistic effect between the modified crystal nucleus and unsaturated amide is utilized to endow water reducer molecules with different functional characteristics. A simple one-step process is adopted, a six-carbon polyether monomer is used, and the crystal nucleus early strength type polycarboxylic acid water reducer is successfully prepared in a low-temperature water phase. The water reducing agent prepared by the method can obviously improve the early strength of concrete and improve the discharge state of a concrete mixture. In addition, the water reducing agent has the advantages of good dispersion and plasticity in a mortar body.
本发明公开一种晶核早强型聚羧酸减水剂及其制备方法，属于混凝土外加剂技术领域。本发明减水剂包括以下重量份的原料制备而成：底料635‑697份，混合A料70‑98份，混合B料58‑64份，中和料10‑16份。本发明利用改性晶核与不饱和酰胺之间的协同作用，赋予减水剂分子不同的功能特性。采用简单的一步法工艺，使用六碳聚醚单体，在低温水相中成功制备了晶核早强型聚羧酸减水剂。本方法制备的减水剂可显著提高混凝土的早期强度，改善混凝土拌合物的出机状态。此外，该减水剂在胶砂浆体中具有良好的分散和塑性优势。
Crystal nucleus early strength type polycarboxylic acid water reducing agent and preparation method thereof
The invention discloses a crystal nucleus early-strength polycarboxylate superplasticizer and a preparation method thereof, and belongs to the technical field of concrete admixtures. The water reducing agent is prepared from the following raw materials in parts by weight: 635-697 parts of a base material, 70-98 parts of a mixed material A, 58-64 parts of a mixed material B and 10-16 parts of a neutralizing material. According to the invention, the synergistic effect between the modified crystal nucleus and unsaturated amide is utilized to endow water reducer molecules with different functional characteristics. A simple one-step process is adopted, a six-carbon polyether monomer is used, and the crystal nucleus early strength type polycarboxylic acid water reducer is successfully prepared in a low-temperature water phase. The water reducing agent prepared by the method can obviously improve the early strength of concrete and improve the discharge state of a concrete mixture. In addition, the water reducing agent has the advantages of good dispersion and plasticity in a mortar body.
本发明公开一种晶核早强型聚羧酸减水剂及其制备方法，属于混凝土外加剂技术领域。本发明减水剂包括以下重量份的原料制备而成：底料635‑697份，混合A料70‑98份，混合B料58‑64份，中和料10‑16份。本发明利用改性晶核与不饱和酰胺之间的协同作用，赋予减水剂分子不同的功能特性。采用简单的一步法工艺，使用六碳聚醚单体，在低温水相中成功制备了晶核早强型聚羧酸减水剂。本方法制备的减水剂可显著提高混凝土的早期强度，改善混凝土拌合物的出机状态。此外，该减水剂在胶砂浆体中具有良好的分散和塑性优势。
Crystal nucleus early strength type polycarboxylic acid water reducing agent and preparation method thereof
一种晶核早强型聚羧酸减水剂及其制备方法
ZHU DESHUAI (author) / LU JIANG (author) / ZHANG HUI (author) / ZHAO WEI (author) / LI YAO (author) / QIN YOUMIN (author) / FENG ENJUAN (author) / WANG SHENGHUI (author) / WANG KAI (author)
2023-11-28
Patent
Electronic Resource
Chinese
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