Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
Concrete water reducing agent suitable for machine-made sand as well as preparation method and application of concrete water reducing agent
The invention discloses a concrete water reducing agent suitable for machine-made sand and a preparation method and application thereof, and the water reducing agent comprises the following components by mass: 400-600 g of methyl allyl polyoxyethylene ether, 2-10 g of mercaptoethanol, 30-50 g of acrylic acid, 10-20 g of hydroxyethyl acrylate, 3-8 g of hydrogen peroxide, 2-5 g of a reducing agent, a pH regulator and a sufficient amount of deionized water. The ardealite anti-seepage agent is prepared in a five-neck flask provided with an overhead mechanical stirrer and a condensation pipe, and the specific application comprises water conservancy seepage prevention, ardealite environment-friendly treatment, slope treatment and stone carving artwork restoration. The water reducing agent provided by the invention has the advantages that the water reducing performance and the slump loss control capability of fresh concrete are obviously improved, an obvious positive effect on improving bleeding and workability of the concrete is achieved, and the compressive strength of the concrete at different ages is increased; (2) the water reducing agent provided by the invention is high in water reducing rate of concrete, has good water reducing performance on machine-made sand concrete, and has the effects of controlling slump loss and improving the workability of the concrete.
本发明公开了一种适用于机制砂的混凝土减水剂及其制备方法与应用，所述减水剂，按质量计，包括甲基烯丙基聚氧乙烯醚400~600g、巯基乙醇2~10g、丙烯酸30~50g、丙烯酸羟乙酯10~20g、双氧水3~8g、还原剂2~5g、pH调节剂、以及足量的去离子水。通过在装有顶置式机械搅拌器、冷凝管的五口烧瓶制得，具体应用包括水利防渗、磷石膏环保处理、边坡治理、石雕艺术品修复。本发明提供的减水剂对新拌混凝土的减水性能和控制坍落度损失的能力都有明显提升，对改善混凝土泌水与和易性有明显正面作用，并且增加了混凝土不同龄期的抗压强度；（2）本发明提供的减水剂混凝土减水率高，对的机制砂混凝土有着良好的减水性能，以及控制坍落度损失、改善混凝土和易性的作用。
Concrete water reducing agent suitable for machine-made sand as well as preparation method and application of concrete water reducing agent
The invention discloses a concrete water reducing agent suitable for machine-made sand and a preparation method and application thereof, and the water reducing agent comprises the following components by mass: 400-600 g of methyl allyl polyoxyethylene ether, 2-10 g of mercaptoethanol, 30-50 g of acrylic acid, 10-20 g of hydroxyethyl acrylate, 3-8 g of hydrogen peroxide, 2-5 g of a reducing agent, a pH regulator and a sufficient amount of deionized water. The ardealite anti-seepage agent is prepared in a five-neck flask provided with an overhead mechanical stirrer and a condensation pipe, and the specific application comprises water conservancy seepage prevention, ardealite environment-friendly treatment, slope treatment and stone carving artwork restoration. The water reducing agent provided by the invention has the advantages that the water reducing performance and the slump loss control capability of fresh concrete are obviously improved, an obvious positive effect on improving bleeding and workability of the concrete is achieved, and the compressive strength of the concrete at different ages is increased; (2) the water reducing agent provided by the invention is high in water reducing rate of concrete, has good water reducing performance on machine-made sand concrete, and has the effects of controlling slump loss and improving the workability of the concrete.
本发明公开了一种适用于机制砂的混凝土减水剂及其制备方法与应用，所述减水剂，按质量计，包括甲基烯丙基聚氧乙烯醚400~600g、巯基乙醇2~10g、丙烯酸30~50g、丙烯酸羟乙酯10~20g、双氧水3~8g、还原剂2~5g、pH调节剂、以及足量的去离子水。通过在装有顶置式机械搅拌器、冷凝管的五口烧瓶制得，具体应用包括水利防渗、磷石膏环保处理、边坡治理、石雕艺术品修复。本发明提供的减水剂对新拌混凝土的减水性能和控制坍落度损失的能力都有明显提升，对改善混凝土泌水与和易性有明显正面作用，并且增加了混凝土不同龄期的抗压强度；（2）本发明提供的减水剂混凝土减水率高，对的机制砂混凝土有着良好的减水性能，以及控制坍落度损失、改善混凝土和易性的作用。
Concrete water reducing agent suitable for machine-made sand as well as preparation method and application of concrete water reducing agent
一种适用于机制砂的混凝土减水剂及其制备方法与应用
HUANG YUMEI (Autor:in) / MIRKO GRUBER (Autor:in) / LIU LEI (Autor:in) / LIU HUAN (Autor:in) / WANG LONG (Autor:in)
07.06.2022
Patent
Elektronische Ressource
Chinesisch
IPC:
C04B
Kalk
,
LIME
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