A platform for research: civil engineering, architecture and urbanism
A platform for research: civil engineering, architecture and urbanism
The invention belongs to the technical field of concrete pipe piles, and particularly relates to a thin-wall concrete pipe pile which is prepared from the following components in parts by weight: 300 to 500 parts of cement, 100 to 150 parts of mineral admixture, 600 to 800 parts of fine aggregate, 1000 to 1200 parts of coarse aggregate, 100 to 150 parts of reinforced fiber, 10 to 20 parts of water reducing agent, 5 to 10 parts of hydroxypropyl methyl cellulose ether and 140 to 200 parts of water. The reinforced fibers are modified by a silane coupling agent before being added. According to the thin-wall concrete pipe pile, the mineral admixture is added to replace part of cement, the mineral admixture is used for improving the activity of a gel material, increasing pozzolanic reaction, generating hydrated calcium silicate and improving the overall strength of concrete, in addition, hydroxypropyl methyl cellulose ether is added, the binding power among all the components is improved, meanwhile, the water retention effect is improved, and the water retention effect is improved. Meanwhile, the reinforcing fibers treated by the silane coupling agent are added into the reinforcing fibers, and the silane coupling agent can connect the reinforcing fibers with the hydroxypropyl methyl cellulose ether to form a three-dimensional network structure, so that the strength of the concrete is improved, and the crack resistance is improved.
本申请属于混凝土管桩技术领域，具体涉及一种薄壁混凝土管桩，包括如下重量份的各组分：水泥300‑500份、矿物掺合料100‑150份、细骨料600‑800份、粗骨料1000‑1200份、增强纤维100‑150份、减水剂10‑20份、羟丙基甲基纤维素醚5‑10份、水140‑200份；所述增强纤维添加前由硅烷偶联剂进行改性处理。本申请的薄壁混凝土管桩，通过添加矿物掺合料代替部分水泥，通过矿物掺合料提高凝胶材料的活性，增加火山灰反应，生成水化硅酸钙，提高混凝土的整体强度，另外，添加羟丙基甲基纤维素醚，提高各组分之间粘结力的同时提高保水效果，同时增强纤维添加硅烷偶联剂处理的增强纤维，硅烷偶联剂可将增强纤维与羟丙基甲基纤维素醚连接起来，形成三维网状结构，提高混凝土强度，提高抗裂性能。
The invention belongs to the technical field of concrete pipe piles, and particularly relates to a thin-wall concrete pipe pile which is prepared from the following components in parts by weight: 300 to 500 parts of cement, 100 to 150 parts of mineral admixture, 600 to 800 parts of fine aggregate, 1000 to 1200 parts of coarse aggregate, 100 to 150 parts of reinforced fiber, 10 to 20 parts of water reducing agent, 5 to 10 parts of hydroxypropyl methyl cellulose ether and 140 to 200 parts of water. The reinforced fibers are modified by a silane coupling agent before being added. According to the thin-wall concrete pipe pile, the mineral admixture is added to replace part of cement, the mineral admixture is used for improving the activity of a gel material, increasing pozzolanic reaction, generating hydrated calcium silicate and improving the overall strength of concrete, in addition, hydroxypropyl methyl cellulose ether is added, the binding power among all the components is improved, meanwhile, the water retention effect is improved, and the water retention effect is improved. Meanwhile, the reinforcing fibers treated by the silane coupling agent are added into the reinforcing fibers, and the silane coupling agent can connect the reinforcing fibers with the hydroxypropyl methyl cellulose ether to form a three-dimensional network structure, so that the strength of the concrete is improved, and the crack resistance is improved.
本申请属于混凝土管桩技术领域，具体涉及一种薄壁混凝土管桩，包括如下重量份的各组分：水泥300‑500份、矿物掺合料100‑150份、细骨料600‑800份、粗骨料1000‑1200份、增强纤维100‑150份、减水剂10‑20份、羟丙基甲基纤维素醚5‑10份、水140‑200份；所述增强纤维添加前由硅烷偶联剂进行改性处理。本申请的薄壁混凝土管桩，通过添加矿物掺合料代替部分水泥，通过矿物掺合料提高凝胶材料的活性，增加火山灰反应，生成水化硅酸钙，提高混凝土的整体强度，另外，添加羟丙基甲基纤维素醚，提高各组分之间粘结力的同时提高保水效果，同时增强纤维添加硅烷偶联剂处理的增强纤维，硅烷偶联剂可将增强纤维与羟丙基甲基纤维素醚连接起来，形成三维网状结构，提高混凝土强度，提高抗裂性能。
Thin-wall concrete pipe pile
一种薄壁混凝土管桩
CHEN ZHITAO (author)
2022-05-13
Patent
Electronic Resource
Chinese
IPC:
C04B
Kalk
,
LIME
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