A platform for research: civil engineering, architecture and urbanism
A platform for research: civil engineering, architecture and urbanism
Foam concrete material for filling high-ground-temperature tunnel dissolving cavity and preparation method of foam concrete material
The invention discloses a foam concrete material for filling a high-ground-temperature tunnel cavern and a preparation method of the foam concrete material, and relates to the technical field of tunnel vault cavern filling. The high-strength concrete is prepared from the following raw materials in parts by weight: 313 to 625 parts of cement base material, 105 to 208 parts of fly ash, 3 to 41 parts of additive, 30 to 50 parts of foaming agent, 125 to 250 parts of water, 8 to 17 parts of basalt needle fiber, 13 to 25 parts of nano SiO2 aerogel, 2 to 4 parts of 303P organic silicon hydrophobic powder and 4 to 8 parts of ST122 capillary crystalline hydrophobic powder. The basalt fiber is doped into the foam concrete material provided by the invention to enhance the crack resistance effect, after a prepared plate is subjected to drying shrinkage, the surface of a test piece is free of cracks, air holes and other defects and is uniform in color, and a certain amount of nano SiO2 aerogel is doped, so that the heat insulation performance of the foam concrete is effectively improved.
本发明公开了一种高地温隧道溶腔填充用泡沫混凝土材料及其制备方法，涉及隧道拱顶溶腔填充技术领域，由以下重量份数的原料组成：水泥基料313‑625份、粉煤灰105‑208份、外加剂3‑41份、发泡剂30‑50份、水125‑250份、玄武岩棒针纤维8‑17份、纳米SiO2气凝胶13‑25份、303P有机硅憎水粉2‑4份及ST122渗透结晶型憎水粉末4‑8份。本发明提出的泡沫混凝土材料掺入了玄武岩纤维，用以增强阻裂的作用，由此制备的板件在经历干燥收缩之后，试件表面无裂纹、气孔等缺陷产生，色泽统一，掺入一定量的纳米SiO2气凝胶，有效的改善了泡沫混凝土的隔热性能。
Foam concrete material for filling high-ground-temperature tunnel dissolving cavity and preparation method of foam concrete material
The invention discloses a foam concrete material for filling a high-ground-temperature tunnel cavern and a preparation method of the foam concrete material, and relates to the technical field of tunnel vault cavern filling. The high-strength concrete is prepared from the following raw materials in parts by weight: 313 to 625 parts of cement base material, 105 to 208 parts of fly ash, 3 to 41 parts of additive, 30 to 50 parts of foaming agent, 125 to 250 parts of water, 8 to 17 parts of basalt needle fiber, 13 to 25 parts of nano SiO2 aerogel, 2 to 4 parts of 303P organic silicon hydrophobic powder and 4 to 8 parts of ST122 capillary crystalline hydrophobic powder. The basalt fiber is doped into the foam concrete material provided by the invention to enhance the crack resistance effect, after a prepared plate is subjected to drying shrinkage, the surface of a test piece is free of cracks, air holes and other defects and is uniform in color, and a certain amount of nano SiO2 aerogel is doped, so that the heat insulation performance of the foam concrete is effectively improved.
本发明公开了一种高地温隧道溶腔填充用泡沫混凝土材料及其制备方法，涉及隧道拱顶溶腔填充技术领域，由以下重量份数的原料组成：水泥基料313‑625份、粉煤灰105‑208份、外加剂3‑41份、发泡剂30‑50份、水125‑250份、玄武岩棒针纤维8‑17份、纳米SiO2气凝胶13‑25份、303P有机硅憎水粉2‑4份及ST122渗透结晶型憎水粉末4‑8份。本发明提出的泡沫混凝土材料掺入了玄武岩纤维，用以增强阻裂的作用，由此制备的板件在经历干燥收缩之后，试件表面无裂纹、气孔等缺陷产生，色泽统一，掺入一定量的纳米SiO2气凝胶，有效的改善了泡沫混凝土的隔热性能。
Foam concrete material for filling high-ground-temperature tunnel dissolving cavity and preparation method of foam concrete material
一种高地温隧道溶腔填充用泡沫混凝土材料及其制备方法
HOU YONG (author) / DU PENG (author) / HENG GUANLIANG (author) / YANG DEMAN (author) / LUO XIAO (author) / ZOU SHUNQING (author) / LI SHA (author) / CHOI SUNG-AE (author) / WANG DAICHUN (author) / LI QIAN (author)
2024-01-09
Patent
Electronic Resource
Chinese
IPC:
C04B
Kalk
,
LIME
Foam concrete taking tunnel hole slag as raw material and preparation process of foam concrete
| European Patent Office | 2024
Filling foam concrete employing steel slag as raw material
| European Patent Office | 2015