A platform for research: civil engineering, architecture and urbanism
A platform for research: civil engineering, architecture and urbanism
The invention discloses grouting concrete for subway construction, and relates to the technical field of grouting concrete. The grouting concrete comprises the following components in parts by weight: 40-50 parts of cement, 55-70 parts of fine aggregate, 10-15 parts of fly ash, 5-10 parts of mineral powder, 5-10 parts of silica fume, 3-5 parts of a superplasticizer, 2-4 parts of a plastic expanding agent, 3-5 parts of an early strength agent, 6-10 parts of anhydrous sodium sulphate, 1-3 parts of lignosulfonate, 1-3 parts of a naphthalene sulfonate formaldehyde polymer, 1-3 parts of a thickening agent and 15-20 parts of water. According to the invention, the cement, the fly ash, the mineral powder, the silica fume and the like are used as base materials, and are matched with the aggregate and other auxiliary materials to be mixed according to a certain ratio, so that the cement has good weather resistance, compressive strength and fluidity, and has good dispersity on cement particles, the unit cement consumption is reduced, and the production cost is reduced. The grouting device can be suitable for grouting of various complex structures and narrow spaces.
本发明公开了一种地铁施工用注浆混凝土，涉及注浆混凝土技术领域，该注浆混凝土的成分按重量份分为：水泥40—50份、细骨料55—70份、粉煤灰10—15份、矿粉5—10份、微硅粉5—10份、高效减水剂3—5份、塑性膨胀剂2—4份、早强剂3—5份、元明粉6—10份、木质素磺酸盐1—3份、萘磺酸盐甲醛聚合物1—3份、增稠剂1—3份、水15—20份，本发明通过以水泥、粉煤灰、矿粉和微硅粉等作为基料，配合骨料和其他辅料通过配比混合而成，不仅具有良好的耐候性以及抗压强度和流动性，而且对水泥颗粒具有良好的分散性，减少单位水泥用量，可以适应多种复杂结构以及狭窄空间的注浆。
The invention discloses grouting concrete for subway construction, and relates to the technical field of grouting concrete. The grouting concrete comprises the following components in parts by weight: 40-50 parts of cement, 55-70 parts of fine aggregate, 10-15 parts of fly ash, 5-10 parts of mineral powder, 5-10 parts of silica fume, 3-5 parts of a superplasticizer, 2-4 parts of a plastic expanding agent, 3-5 parts of an early strength agent, 6-10 parts of anhydrous sodium sulphate, 1-3 parts of lignosulfonate, 1-3 parts of a naphthalene sulfonate formaldehyde polymer, 1-3 parts of a thickening agent and 15-20 parts of water. According to the invention, the cement, the fly ash, the mineral powder, the silica fume and the like are used as base materials, and are matched with the aggregate and other auxiliary materials to be mixed according to a certain ratio, so that the cement has good weather resistance, compressive strength and fluidity, and has good dispersity on cement particles, the unit cement consumption is reduced, and the production cost is reduced. The grouting device can be suitable for grouting of various complex structures and narrow spaces.
本发明公开了一种地铁施工用注浆混凝土，涉及注浆混凝土技术领域，该注浆混凝土的成分按重量份分为：水泥40—50份、细骨料55—70份、粉煤灰10—15份、矿粉5—10份、微硅粉5—10份、高效减水剂3—5份、塑性膨胀剂2—4份、早强剂3—5份、元明粉6—10份、木质素磺酸盐1—3份、萘磺酸盐甲醛聚合物1—3份、增稠剂1—3份、水15—20份，本发明通过以水泥、粉煤灰、矿粉和微硅粉等作为基料，配合骨料和其他辅料通过配比混合而成，不仅具有良好的耐候性以及抗压强度和流动性，而且对水泥颗粒具有良好的分散性，减少单位水泥用量，可以适应多种复杂结构以及狭窄空间的注浆。
Grouting concrete for subway construction
一种地铁施工用注浆混凝土
LIU WEIDONG (author)
2024-05-31
Patent
Electronic Resource
Chinese
IPC:
C04B
Kalk
,
LIME
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