Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
Dry-mixed guniting material for underground roadway of coal mine and preparation method of dry-mixed guniting material
The invention discloses a dry-mixed guniting material for an underground roadway of a coal mine and a preparation method of the dry-mixed guniting material. The guniting material comprises the following components in parts by weight: 100 parts of cement and 20-40 parts of machine-made sand, 5-12 parts of silica fume, 4-15 parts of sodium silicate, 10-25 parts of fly ash, 0.3-1.2 parts of a defoaming agent, 3-10 parts of an accelerator, 1-4 parts of a water reducing agent, 2-15 parts of a polymer water absorbent and 0.1-0.6% of a fiber material, the fiber material is subjected to heating treatment. The disordered part of the fiber material in the dry-mixed guniting material is crosslinked to form a net-shaped structure, so that the mechanical strength of the guniting material is improved, the guniting material can be coordinated with a filling object, the crack resistance of constructed concrete is further improved, the usage amount of the filling material is reduced, and hydration is more uniform.
本发明公开了一种煤矿井下巷道用干混喷浆材料及其制备方法，所述喷浆材料组分包括：水泥100重量份，机制砂20‑40重量份；硅灰5‑12重量份，硅酸钠4‑15重量份，粉煤灰10‑25重量份，消泡剂0.3‑1.2重量份，速凝剂3‑10重量份，减水剂1‑4重量份，高分子吸水剂2‑15重量份，纤维材料0.1‑0.6％体积百分比；其中，所述纤维材料进行加热处理。该干混喷浆材料中纤维材料无序部分交联，形成了网状结构，提高了喷浆材料的机械强度，使得喷浆材料能够与充填对象相协调，进而增加了混凝土施工后的抗裂性能，充填材料使用量降低，水化更均匀。
Dry-mixed guniting material for underground roadway of coal mine and preparation method of dry-mixed guniting material
The invention discloses a dry-mixed guniting material for an underground roadway of a coal mine and a preparation method of the dry-mixed guniting material. The guniting material comprises the following components in parts by weight: 100 parts of cement and 20-40 parts of machine-made sand, 5-12 parts of silica fume, 4-15 parts of sodium silicate, 10-25 parts of fly ash, 0.3-1.2 parts of a defoaming agent, 3-10 parts of an accelerator, 1-4 parts of a water reducing agent, 2-15 parts of a polymer water absorbent and 0.1-0.6% of a fiber material, the fiber material is subjected to heating treatment. The disordered part of the fiber material in the dry-mixed guniting material is crosslinked to form a net-shaped structure, so that the mechanical strength of the guniting material is improved, the guniting material can be coordinated with a filling object, the crack resistance of constructed concrete is further improved, the usage amount of the filling material is reduced, and hydration is more uniform.
本发明公开了一种煤矿井下巷道用干混喷浆材料及其制备方法，所述喷浆材料组分包括：水泥100重量份，机制砂20‑40重量份；硅灰5‑12重量份，硅酸钠4‑15重量份，粉煤灰10‑25重量份，消泡剂0.3‑1.2重量份，速凝剂3‑10重量份，减水剂1‑4重量份，高分子吸水剂2‑15重量份，纤维材料0.1‑0.6％体积百分比；其中，所述纤维材料进行加热处理。该干混喷浆材料中纤维材料无序部分交联，形成了网状结构，提高了喷浆材料的机械强度，使得喷浆材料能够与充填对象相协调，进而增加了混凝土施工后的抗裂性能，充填材料使用量降低，水化更均匀。
Dry-mixed guniting material for underground roadway of coal mine and preparation method of dry-mixed guniting material
煤矿井下巷道用干混喷浆材料及其制备方法
ZHANG WEIFANG (Autor:in) / WANG BINGFENG (Autor:in) / KANG YONGBING (Autor:in)
05.11.2021
Patent
Elektronische Ressource
Chinesisch
IPC:
C04B
Kalk
,
LIME
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