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A platform for research: civil engineering, architecture and urbanism
Self-growing nano ettringite fiber toughening agent as well as preparation method and application thereof
The invention provides a self-growing nano ettringite fiber toughening agent which is prepared from sulphoaluminate cement clinker, a gypsum raw material and a calcium oxide raw material in a mass ratio of 1: (1.0-3.1): (0.05-0.5), or prepared from sulphoaluminate cement, a gypsum raw material and a calcium oxide raw material in a mass ratio of 1: (0.4-1.6): (0.03-0.3). The toughening agent provided by the invention can be used together with cement to prepare concrete, mortar and cement products. After the toughening agent encounters water, nanofibers self-growing in concrete can play a role in toughening a cement matrix. The problem that toughening fibers in traditional fiber concrete agglomerate and are not uniformly dispersed in the concrete can be solved. The toughening agent and a hydration product are combined more tightly and better adhered, so that the toughening effect is better.
本发明提供一种自生长纳米钙矾石纤维增韧剂，由硫铝酸盐水泥熟料、石膏类原材料和氧化钙类原材料组成，其质量比为1∶1.0~3.1∶0.05~0.5；或者由硫铝酸盐水泥、石膏类原材料和氧化钙类原材料组成，其质量比为1∶0.4~1.6∶0.03~0.3。本发明增韧剂可与水泥共同使用，制备混凝土、砂浆和水泥制品。本发明增韧剂遇水后在混凝土内部自生长出的纳米纤维可对水泥基体起到增韧作用，可解决传统纤维混凝土中增韧纤维团聚、在混凝土中分散不均匀等问题，且与水化产物之间结合更紧密，粘结性能更好，故增韧效果更优。
Self-growing nano ettringite fiber toughening agent as well as preparation method and application thereof
The invention provides a self-growing nano ettringite fiber toughening agent which is prepared from sulphoaluminate cement clinker, a gypsum raw material and a calcium oxide raw material in a mass ratio of 1: (1.0-3.1): (0.05-0.5), or prepared from sulphoaluminate cement, a gypsum raw material and a calcium oxide raw material in a mass ratio of 1: (0.4-1.6): (0.03-0.3). The toughening agent provided by the invention can be used together with cement to prepare concrete, mortar and cement products. After the toughening agent encounters water, nanofibers self-growing in concrete can play a role in toughening a cement matrix. The problem that toughening fibers in traditional fiber concrete agglomerate and are not uniformly dispersed in the concrete can be solved. The toughening agent and a hydration product are combined more tightly and better adhered, so that the toughening effect is better.
本发明提供一种自生长纳米钙矾石纤维增韧剂，由硫铝酸盐水泥熟料、石膏类原材料和氧化钙类原材料组成，其质量比为1∶1.0~3.1∶0.05~0.5；或者由硫铝酸盐水泥、石膏类原材料和氧化钙类原材料组成，其质量比为1∶0.4~1.6∶0.03~0.3。本发明增韧剂可与水泥共同使用，制备混凝土、砂浆和水泥制品。本发明增韧剂遇水后在混凝土内部自生长出的纳米纤维可对水泥基体起到增韧作用，可解决传统纤维混凝土中增韧纤维团聚、在混凝土中分散不均匀等问题，且与水化产物之间结合更紧密，粘结性能更好，故增韧效果更优。
Self-growing nano ettringite fiber toughening agent as well as preparation method and application thereof
一种自生长纳米钙矾石纤维增韧剂及其制备方法和应用
ZHOU JIAN (author) / XU MINGFENG (author) / LI HUI (author)
2022-02-15
Patent
Electronic Resource
Chinese
IPC:
C04B
Kalk
,
LIME
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