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High-strength shrinkage-reducing cement mortar doped with steel fibers and floating beads and preparation method of high-strength shrinkage-reducing cement mortar
The invention discloses high-strength shrinkage-reducing cement mortar doped with steel fibers and floating beads and a preparation method of the cement mortar. The cement mortar is prepared from water, cement, silicon powder, metakaolin, quartz sand, saturated floating beads, the steel fibers and a polycarboxylate superplasticizer. The mass ratio of the water to the cement to the silicon powder to the metakaolin to the quartz sand to the saturated floating beads is 1042: 4168: 521: 521: (2800-4000): (286-859). The volume mixing amount of the steel fiber is 3%, and the mixing amount of the polycarboxylic acid type water reducing agent is 3% of that of the cementing material. The excellent water saturation and water release performance of the floating beads are combined, quartz sand is replaced with the floating beads, the problem of self-constriction of low-water-binder-ratio cement mortar is solved, meanwhile, it is guaranteed that the strength of the cement mortar is not greatly reduced, and good practical application value is achieved.
本发明公开了一种掺加钢纤维和漂珠的高强减缩水泥砂浆及其制备方法，水泥砂浆包括水、水泥、硅粉、偏高岭土、石英砂、饱水漂珠、钢纤维、聚羧酸高效减水剂。水、水泥、硅粉、偏高岭土、石英砂、饱水漂珠按照质量比为：1042：4168：521：521：(2800‑4000)：(286‑859)。钢纤维体积掺量为3％，聚羧酸型减水剂掺量为胶凝材料的3％。本发明结合了漂珠优秀的饱水和释水性能，用其来替代石英砂，解决了低水胶比水泥砂浆自收缩的问题，同时保证水泥砂浆强度没有大幅降低，具有良好的实际应用价值。
High-strength shrinkage-reducing cement mortar doped with steel fibers and floating beads and preparation method of high-strength shrinkage-reducing cement mortar
The invention discloses high-strength shrinkage-reducing cement mortar doped with steel fibers and floating beads and a preparation method of the cement mortar. The cement mortar is prepared from water, cement, silicon powder, metakaolin, quartz sand, saturated floating beads, the steel fibers and a polycarboxylate superplasticizer. The mass ratio of the water to the cement to the silicon powder to the metakaolin to the quartz sand to the saturated floating beads is 1042: 4168: 521: 521: (2800-4000): (286-859). The volume mixing amount of the steel fiber is 3%, and the mixing amount of the polycarboxylic acid type water reducing agent is 3% of that of the cementing material. The excellent water saturation and water release performance of the floating beads are combined, quartz sand is replaced with the floating beads, the problem of self-constriction of low-water-binder-ratio cement mortar is solved, meanwhile, it is guaranteed that the strength of the cement mortar is not greatly reduced, and good practical application value is achieved.
本发明公开了一种掺加钢纤维和漂珠的高强减缩水泥砂浆及其制备方法，水泥砂浆包括水、水泥、硅粉、偏高岭土、石英砂、饱水漂珠、钢纤维、聚羧酸高效减水剂。水、水泥、硅粉、偏高岭土、石英砂、饱水漂珠按照质量比为：1042：4168：521：521：(2800‑4000)：(286‑859)。钢纤维体积掺量为3％，聚羧酸型减水剂掺量为胶凝材料的3％。本发明结合了漂珠优秀的饱水和释水性能，用其来替代石英砂，解决了低水胶比水泥砂浆自收缩的问题，同时保证水泥砂浆强度没有大幅降低，具有良好的实际应用价值。
High-strength shrinkage-reducing cement mortar doped with steel fibers and floating beads and preparation method of high-strength shrinkage-reducing cement mortar
一种掺加钢纤维和漂珠的高强减缩水泥砂浆及其制备方法
RAN TAO (author) / PANG JIANYONG (author) / YAO WEIJING (author) / TONG GEJUN (author)
2022-04-12
Patent
Electronic Resource
Chinese
IPC:
C04B
Kalk
,
LIME
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