Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
Viscosity-increasing flow-increasing reinforcing auxiliary agent for cement mortar as well as preparation method and application of viscosity-increasing flow-increasing reinforcing auxiliary agent
The invention discloses a viscosity-increasing flow-increasing reinforcing auxiliary agent for cement mortar as well as a preparation method and application of the viscosity-increasing flow-increasing reinforcing auxiliary agent, and belongs to the technical field of functional auxiliary agents of cement-based materials. Microcrystalline cellulose is modified into sulfonated carboxyl microcrystalline cellulose through oxidation and sulfonation, so that the controllability of morphological change of the sulfonated carboxyl microcrystalline cellulose is improved; by utilizing the structural form change that sulfonated carboxyl microcrystalline cellulose is sequentially converted into a swelling body, a microgel state of a microcrystal region and an amorphous region and an interwoven cross-linked hydrogel state from a crystal phase under an alkaline condition, the cohesiveness and the fluidity of the high-content coal chemical solid waste filling cement mortar, and the formation, the strength and the durability of a hydration product in a curing process are regulated and controlled; the problems existing in preparation of the filling mortar for the goaf with the high content of the coal chemical solid waste are solved. The prepared high-content coal chemical solid waste cement mortar not only can be used as a filling material for a coal goaf, but also can be used as a cement mortar coating for cement ground conversion, cement roads, cement products, walls and proper cement mortar materials for buildings.
本发明公开了一种水泥胶砂用増黏增流增强助剂及其制备方法和应用，属于水泥基材料的功能助剂技术领域。将微晶纤维素经过氧化及磺化改性为磺化羧基微晶纤维素，提高了磺化羧基微晶纤维素形态变化的可控性，利用磺化羧基微晶纤维素在碱性条件下依次从晶相转变为溶胀体、微晶区与无定型区微凝胶态及交织交联水凝胶态的结构形态变化，调控高含量煤化工固废充填水泥胶砂的黏结性、流动性、固化过程水化产物的形成及强度和耐久性，解决了高含量煤化工固废采空区充填胶砂制备时存在的问题。所制备的高含量煤化工固废水泥胶砂不仅可用于煤炭采空区的充填材料，还可以用作水泥地转、水泥道路、水泥制品、墙体水泥胶砂涂层及适当的建筑用水泥胶砂材料。
Viscosity-increasing flow-increasing reinforcing auxiliary agent for cement mortar as well as preparation method and application of viscosity-increasing flow-increasing reinforcing auxiliary agent
The invention discloses a viscosity-increasing flow-increasing reinforcing auxiliary agent for cement mortar as well as a preparation method and application of the viscosity-increasing flow-increasing reinforcing auxiliary agent, and belongs to the technical field of functional auxiliary agents of cement-based materials. Microcrystalline cellulose is modified into sulfonated carboxyl microcrystalline cellulose through oxidation and sulfonation, so that the controllability of morphological change of the sulfonated carboxyl microcrystalline cellulose is improved; by utilizing the structural form change that sulfonated carboxyl microcrystalline cellulose is sequentially converted into a swelling body, a microgel state of a microcrystal region and an amorphous region and an interwoven cross-linked hydrogel state from a crystal phase under an alkaline condition, the cohesiveness and the fluidity of the high-content coal chemical solid waste filling cement mortar, and the formation, the strength and the durability of a hydration product in a curing process are regulated and controlled; the problems existing in preparation of the filling mortar for the goaf with the high content of the coal chemical solid waste are solved. The prepared high-content coal chemical solid waste cement mortar not only can be used as a filling material for a coal goaf, but also can be used as a cement mortar coating for cement ground conversion, cement roads, cement products, walls and proper cement mortar materials for buildings.
本发明公开了一种水泥胶砂用増黏增流增强助剂及其制备方法和应用，属于水泥基材料的功能助剂技术领域。将微晶纤维素经过氧化及磺化改性为磺化羧基微晶纤维素，提高了磺化羧基微晶纤维素形态变化的可控性，利用磺化羧基微晶纤维素在碱性条件下依次从晶相转变为溶胀体、微晶区与无定型区微凝胶态及交织交联水凝胶态的结构形态变化，调控高含量煤化工固废充填水泥胶砂的黏结性、流动性、固化过程水化产物的形成及强度和耐久性，解决了高含量煤化工固废采空区充填胶砂制备时存在的问题。所制备的高含量煤化工固废水泥胶砂不仅可用于煤炭采空区的充填材料，还可以用作水泥地转、水泥道路、水泥制品、墙体水泥胶砂涂层及适当的建筑用水泥胶砂材料。
Viscosity-increasing flow-increasing reinforcing auxiliary agent for cement mortar as well as preparation method and application of viscosity-increasing flow-increasing reinforcing auxiliary agent
一种水泥胶砂用増黏增流增强助剂及其制备方法和应用
LYU SHENGHUA (Autor:in) / HE TINGXIANG (Autor:in) / WEI DEQUAN (Autor:in) / LIU LEIPENG (Autor:in) / SHE JIALONG (Autor:in) / GAO DANGGUO (Autor:in) / GAN ZHICHAO (Autor:in) / JIA JUN (Autor:in)
16.08.2024
Patent
Elektronische Ressource
Chinesisch
IPC:
C04B
Kalk
,
LIME
/
C08B
POLYSACCHARIDES
,
Polysaccharide
/
E21F
Sicherheitsvorrichtungen, Förderung, Auffüllen oder Bergversatz, Rettungswesen, Bewetterung oder Entwässerung in oder von Gruben oder Tunnels
,
SAFETY DEVICES, TRANSPORT, FILLING-UP, RESCUE, VENTILATION, OR DRAINAGE IN OR OF MINES OR TUNNELS
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