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A platform for research: civil engineering, architecture and urbanism
Cement-based grouting material for steel bar sleeve
The invention discloses a cement-based grouting material for a steel bar sleeve, the cement-based grouting material specifically comprises the following raw materials: cement, water, a water reducer, silica fume, fly ash, an expanding agent and an admixture, the cement adopts ordinary Portland cement, the water adopts tap water, the particle size distribution r of artificial sand is 1.25 mm < = r < = 2.36 mm, the particle size distribution of the silica fume is 0.1-0.15 [mu] m, the particle size distribution r of the fly ash is 0.1-0.15 [mu] m, and the admixture is water. The particle size distribution of the fly ash is 80-10 [mu] m, and the fly ash is secondary fly ash; the preparation method of the cement-based grouting material comprises the following steps: S1, selecting and optimizing the grain composition of the cement-based high-performance reinforcement sleeve grouting material; according to the cement-based grouting material for the reinforcing steel bar sleeve, the grouting material meeting the industrial requirements can be obtained when the amount of the water reducing agent accounts for 1%-1.5% of the total amount of the materials through repeated experiment exploration; the fluidity of the grouting material can be well improved when the mixing amount of the silica fume is less and the mixing amount of the cement is increased.
本发明公开了一种钢筋套筒用水泥基灌浆料，具体包括以下原料：水泥、水、减水剂、硅灰、粉煤灰、膨胀剂和掺和材，所述水泥采用普通硅酸盐水泥，所述水采用自来水，所述人工砂的粒径分布为1.25mm≦r≦2.36mm，所述硅灰的粒径分布为0.1‑0.15um，所述粉煤灰的粒径分布为80‑10um，且粉煤灰采用二级粉煤灰；水泥基灌浆料的制备方法包括以下过程：S1：水泥基高性能钢筋套筒灌浆料颗粒级配的选取和优化；本发明提供的钢筋套筒用水泥基灌浆料具有通过反复的实验探究得出减水剂的量占总物料的量的1％‑1.5％就能得到满足行业要求的灌浆料；硅灰掺量越少、水泥掺量增大都能很好的提高灌浆料的流动性的技术效果。
Cement-based grouting material for steel bar sleeve
The invention discloses a cement-based grouting material for a steel bar sleeve, the cement-based grouting material specifically comprises the following raw materials: cement, water, a water reducer, silica fume, fly ash, an expanding agent and an admixture, the cement adopts ordinary Portland cement, the water adopts tap water, the particle size distribution r of artificial sand is 1.25 mm < = r < = 2.36 mm, the particle size distribution of the silica fume is 0.1-0.15 [mu] m, the particle size distribution r of the fly ash is 0.1-0.15 [mu] m, and the admixture is water. The particle size distribution of the fly ash is 80-10 [mu] m, and the fly ash is secondary fly ash; the preparation method of the cement-based grouting material comprises the following steps: S1, selecting and optimizing the grain composition of the cement-based high-performance reinforcement sleeve grouting material; according to the cement-based grouting material for the reinforcing steel bar sleeve, the grouting material meeting the industrial requirements can be obtained when the amount of the water reducing agent accounts for 1%-1.5% of the total amount of the materials through repeated experiment exploration; the fluidity of the grouting material can be well improved when the mixing amount of the silica fume is less and the mixing amount of the cement is increased.
本发明公开了一种钢筋套筒用水泥基灌浆料，具体包括以下原料：水泥、水、减水剂、硅灰、粉煤灰、膨胀剂和掺和材，所述水泥采用普通硅酸盐水泥，所述水采用自来水，所述人工砂的粒径分布为1.25mm≦r≦2.36mm，所述硅灰的粒径分布为0.1‑0.15um，所述粉煤灰的粒径分布为80‑10um，且粉煤灰采用二级粉煤灰；水泥基灌浆料的制备方法包括以下过程：S1：水泥基高性能钢筋套筒灌浆料颗粒级配的选取和优化；本发明提供的钢筋套筒用水泥基灌浆料具有通过反复的实验探究得出减水剂的量占总物料的量的1％‑1.5％就能得到满足行业要求的灌浆料；硅灰掺量越少、水泥掺量增大都能很好的提高灌浆料的流动性的技术效果。
Cement-based grouting material for steel bar sleeve
一种钢筋套筒用水泥基灌浆料
WAN BANGJIANG (author) / WAN DONGXU (author) / SONG LIUYANG (author) / LIU DONGSHENG (author)
2022-12-23
Patent
Electronic Resource
Chinese
IPC:
C04B
Kalk
,
LIME
| European Patent Office | 2021
| European Patent Office | 2022