Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
Nano modified shrinkage reducing agent as well as preparation method and application thereof
The invention discloses a nano modified shrinkage reducing agent as well as a preparation method and application thereof, and belongs to the technical field of building material concrete admixtures. The nano modified shrinkage reducing agent is prepared from the following components in parts by mass: 40 parts of sodium hydroxide, 20 to 60 parts of anionic polyacrylamide, 120 parts of acrylic acid, 0.16 part of a cross-linking agent, 0.8 part of an initiator, 10 to 40 parts of a thermosensitive temperature control agent, 60 to 100 parts of sepiolite and 10 to 40 parts of a thermal buffering agent. The nano modified shrinkage reducing agent is added into the high-strength large-volume concrete, and has the main function of curing the interior of the high-strength large-volume concrete in a curing stage and avoiding shrinkage and cracking of a matrix. Meanwhile, the nano modified shrinkage reducing agent has a certain capability of adjusting temperature. Besides, the nano-modified shrinkage reducing agent also has certain strength, can replace part of fine aggregate, and avoids adverse effects such as strength reduction and the like caused by holes left due to the collapse of the water-absorbent resin when the mass concrete is in the age or after the curing is finished.
本申请公开了一种纳米改性减缩剂、制备方法及应用，属于建筑材料混凝土外加剂技术领域。该纳米改性减缩剂质量份数计，包括以下组分：氢氧化钠40份、阴离子型聚丙烯酰胺20～60份、丙烯酸120份、交联剂0.16份、引发剂0.8份、热敏控温剂10～40份、海泡石60～100份、热缓冲剂10～40份。该纳米改性减缩剂加入高强大体积混凝土中，主要功能是在养护阶段在高标号大体积混凝土内部进行养护并避免基体收缩开裂。同时，该纳米改性减缩剂兼具一定的调节温度的能力。另外，该纳米改性减缩剂还具有一定的强度，可替代部分细骨料，且避免大体积混凝土在龄期内或者是养护结束时，由于吸水树脂塌缩留下孔洞，造成强度降低等不利影响。
Nano modified shrinkage reducing agent as well as preparation method and application thereof
The invention discloses a nano modified shrinkage reducing agent as well as a preparation method and application thereof, and belongs to the technical field of building material concrete admixtures. The nano modified shrinkage reducing agent is prepared from the following components in parts by mass: 40 parts of sodium hydroxide, 20 to 60 parts of anionic polyacrylamide, 120 parts of acrylic acid, 0.16 part of a cross-linking agent, 0.8 part of an initiator, 10 to 40 parts of a thermosensitive temperature control agent, 60 to 100 parts of sepiolite and 10 to 40 parts of a thermal buffering agent. The nano modified shrinkage reducing agent is added into the high-strength large-volume concrete, and has the main function of curing the interior of the high-strength large-volume concrete in a curing stage and avoiding shrinkage and cracking of a matrix. Meanwhile, the nano modified shrinkage reducing agent has a certain capability of adjusting temperature. Besides, the nano-modified shrinkage reducing agent also has certain strength, can replace part of fine aggregate, and avoids adverse effects such as strength reduction and the like caused by holes left due to the collapse of the water-absorbent resin when the mass concrete is in the age or after the curing is finished.
本申请公开了一种纳米改性减缩剂、制备方法及应用，属于建筑材料混凝土外加剂技术领域。该纳米改性减缩剂质量份数计，包括以下组分：氢氧化钠40份、阴离子型聚丙烯酰胺20～60份、丙烯酸120份、交联剂0.16份、引发剂0.8份、热敏控温剂10～40份、海泡石60～100份、热缓冲剂10～40份。该纳米改性减缩剂加入高强大体积混凝土中，主要功能是在养护阶段在高标号大体积混凝土内部进行养护并避免基体收缩开裂。同时，该纳米改性减缩剂兼具一定的调节温度的能力。另外，该纳米改性减缩剂还具有一定的强度，可替代部分细骨料，且避免大体积混凝土在龄期内或者是养护结束时，由于吸水树脂塌缩留下孔洞，造成强度降低等不利影响。
Nano modified shrinkage reducing agent as well as preparation method and application thereof
一种纳米改性减缩剂、制备方法及应用
CUI YUZHEN (Autor:in) / WANG ZHENHUA (Autor:in)
08.11.2024
Patent
Elektronische Ressource
Chinesisch
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