Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
Post-tensioned prestressed duct grouting material and preparation method thereof
The invention belongs to the technical field of building materials, and particularly relates to post-tensioned prestressed duct grouting material and a preparation method thereof. The grouting material is prepared from the following components in parts by mass: 60 to 70 parts of cement, 10 to 15 parts of slag powder, 2 to 5 parts of silica fume, 16 to 24 parts of a rheological component, 1 to 2 parts of a stabilizing component, 3 to 5 parts of a drying component, 0.01 to 0.03 part of an expanding agent, 0 to 0.02 part of a de-foaming agent and 0.15 to 0.3 part of a water reducing agent. The preparation method comprises the following steps: weighing the cement, the slag powder, the silica fume, the rheological component, the stabilizing component and the drying component, uniformly stirring and mixing, then adding the expanding agent, the defoaming agent and the water reducing agent, and uniformly stirring; the mixing water is weighed according to the water-binder ratio of 0.28, added and rapidly stirred, the grouting material with high homogeneity and low water sensitivity is obtained, good flowing performance can be achieved, bleeding and layering of the grouting material caused by too large water consumption or external water are reduced, the tensile strength of the cement slurry is improved, and the toughness and crack resistance of the slurry are improved.
本发明属于建筑材料技术领域，具体涉及一种后张法预应力孔道压浆料及其制备方法。所述压浆料包括以下质量份数的各组分：水泥60～70份，矿渣粉10～15份，硅灰2～5份，流变组份16～24份，稳定组份1～2份，干燥组份3～5份，膨胀剂0.01～0.03份，消泡剂0～0.02份，减水剂0.15～0.3份。称取水泥、矿渣粉、硅灰、流变组份、稳定组份、干燥组份，搅拌混合均匀，再加入膨胀剂、消泡剂、减水剂，搅拌均匀；按水胶比0.28称取拌和水加入，快速搅拌，得到高匀质性和低水敏感性的所述压浆料，可实现良好的流动性能、降低因用水量过大或外部水导致浆液泌水、分层，提高水泥浆体的抗拉强度，改善浆体的韧性和抗裂性能。
Post-tensioned prestressed duct grouting material and preparation method thereof
The invention belongs to the technical field of building materials, and particularly relates to post-tensioned prestressed duct grouting material and a preparation method thereof. The grouting material is prepared from the following components in parts by mass: 60 to 70 parts of cement, 10 to 15 parts of slag powder, 2 to 5 parts of silica fume, 16 to 24 parts of a rheological component, 1 to 2 parts of a stabilizing component, 3 to 5 parts of a drying component, 0.01 to 0.03 part of an expanding agent, 0 to 0.02 part of a de-foaming agent and 0.15 to 0.3 part of a water reducing agent. The preparation method comprises the following steps: weighing the cement, the slag powder, the silica fume, the rheological component, the stabilizing component and the drying component, uniformly stirring and mixing, then adding the expanding agent, the defoaming agent and the water reducing agent, and uniformly stirring; the mixing water is weighed according to the water-binder ratio of 0.28, added and rapidly stirred, the grouting material with high homogeneity and low water sensitivity is obtained, good flowing performance can be achieved, bleeding and layering of the grouting material caused by too large water consumption or external water are reduced, the tensile strength of the cement slurry is improved, and the toughness and crack resistance of the slurry are improved.
本发明属于建筑材料技术领域，具体涉及一种后张法预应力孔道压浆料及其制备方法。所述压浆料包括以下质量份数的各组分：水泥60～70份，矿渣粉10～15份，硅灰2～5份，流变组份16～24份，稳定组份1～2份，干燥组份3～5份，膨胀剂0.01～0.03份，消泡剂0～0.02份，减水剂0.15～0.3份。称取水泥、矿渣粉、硅灰、流变组份、稳定组份、干燥组份，搅拌混合均匀，再加入膨胀剂、消泡剂、减水剂，搅拌均匀；按水胶比0.28称取拌和水加入，快速搅拌，得到高匀质性和低水敏感性的所述压浆料，可实现良好的流动性能、降低因用水量过大或外部水导致浆液泌水、分层，提高水泥浆体的抗拉强度，改善浆体的韧性和抗裂性能。
Post-tensioned prestressed duct grouting material and preparation method thereof
一种后张法预应力孔道压浆料及其制备方法
JIANG RUISHUANG (Autor:in) / SHEN QUANJUN (Autor:in) / GUO BAOLIN (Autor:in) / DING LONGTING (Autor:in) / SHAO YU (Autor:in) / YANG YAOHUI (Autor:in) / LI LI (Autor:in) / GUO YONGZHI (Autor:in) / LIU SHUAI (Autor:in)
22.12.2023
Patent
Elektronische Ressource
Chinesisch
IPC:
C04B
Kalk
,
LIME
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