Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
Modified chemical fiber reinforced concrete and preparation method thereof
The invention relates to the technical field of concrete, in particular to modified chemical fiber reinforced concrete and a preparation method thereof, and the modified chemical fiber reinforced concrete comprises the following raw materials: a concrete base material and modified chemical fibers; the modified chemical fibers are hydrotalcite-coated chemical fibers, and the preparation method of the hydrotalcite-coated chemical fibers comprises the following steps: adding water and chemical fibers into a reaction kettle, stirring, dispersing, heating, dropwise adding a mixed salt solution and an alkali solution into the reaction kettle while stirring, sealing the reaction kettle after dropwise adding, heating, continuously stirring, and cooling to room temperature to obtain the hydrotalcite-coated chemical fibers. Then carrying out centrifugal separation, washing and drying; the problem that the interface bonding strength between chemical fibers and a concrete matrix is low is solved, the modified chemical fiber reinforced concrete can be good in anti-cracking performance and high in strength under the condition that the mixing amount of the modified chemical fibers is small, and meanwhile the production cost of the concrete is low.
本发明涉及混凝土技术领域，具体涉及一种改性化学纤维增强混凝土及其制备方法，改性化学纤维增强混凝土包括以下原料：混凝土基料、改性化学纤维；改性化学纤维为水滑石包覆化学纤维，水滑石包覆化学纤维的制备方法包括以下步骤：向反应釜中加入水和化学纤维，搅拌分散升温，然后边搅拌边同时向反应釜中滴加混合盐溶液和碱液，滴加完毕后，密闭反应釜，升温继续搅拌，再进行离心分离、水洗、干燥；本发明解决了化学纤维与混凝土基体之间的界面粘结强度偏低的问题，在较小的改性化学纤维掺量下，即可使改性化学纤维增强混凝土抗裂性能好，且强度高，同时混凝土生产成本低。
Modified chemical fiber reinforced concrete and preparation method thereof
The invention relates to the technical field of concrete, in particular to modified chemical fiber reinforced concrete and a preparation method thereof, and the modified chemical fiber reinforced concrete comprises the following raw materials: a concrete base material and modified chemical fibers; the modified chemical fibers are hydrotalcite-coated chemical fibers, and the preparation method of the hydrotalcite-coated chemical fibers comprises the following steps: adding water and chemical fibers into a reaction kettle, stirring, dispersing, heating, dropwise adding a mixed salt solution and an alkali solution into the reaction kettle while stirring, sealing the reaction kettle after dropwise adding, heating, continuously stirring, and cooling to room temperature to obtain the hydrotalcite-coated chemical fibers. Then carrying out centrifugal separation, washing and drying; the problem that the interface bonding strength between chemical fibers and a concrete matrix is low is solved, the modified chemical fiber reinforced concrete can be good in anti-cracking performance and high in strength under the condition that the mixing amount of the modified chemical fibers is small, and meanwhile the production cost of the concrete is low.
本发明涉及混凝土技术领域，具体涉及一种改性化学纤维增强混凝土及其制备方法，改性化学纤维增强混凝土包括以下原料：混凝土基料、改性化学纤维；改性化学纤维为水滑石包覆化学纤维，水滑石包覆化学纤维的制备方法包括以下步骤：向反应釜中加入水和化学纤维，搅拌分散升温，然后边搅拌边同时向反应釜中滴加混合盐溶液和碱液，滴加完毕后，密闭反应釜，升温继续搅拌，再进行离心分离、水洗、干燥；本发明解决了化学纤维与混凝土基体之间的界面粘结强度偏低的问题，在较小的改性化学纤维掺量下，即可使改性化学纤维增强混凝土抗裂性能好，且强度高，同时混凝土生产成本低。
Modified chemical fiber reinforced concrete and preparation method thereof
一种改性化学纤维增强混凝土及其制备方法
ZHANG KAI (Autor:in) / CHEN WANGNENG (Autor:in) / CHEN BAOZHEN (Autor:in) / PU LIRONG (Autor:in)
04.06.2024
Patent
Elektronische Ressource
Chinesisch
IPC:
C04B
Kalk
,
LIME
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