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A platform for research: civil engineering, architecture and urbanism
Impermeable alkali-free liquid accelerator adapting to low-temperature environment
The invention relates to the field of constructional engineering, and discloses an anti-permeability alkali-free liquid accelerator suitable for a low-temperature environment, and the anti-permeability alkali-free liquid accelerator comprises 400-680 parts of aluminum sulfate, 20-120 parts of a complexing early strength agent, 5-20 parts of fumed silica, and 10-50 parts of lithium oxalate. The water-based paint is prepared from the following components in parts by weight: 50-70 parts of water, 5-30 parts of an organic silicon polymer, 200-570 parts of water, 1-10 parts of a dispersing agent and 2-10 parts of the organic silicon polymer. By using the complexing agent and the early strength agent, the stability of the accelerator is improved, and the crystallization phenomenon in a low-temperature environment can be effectively prevented; meanwhile, the lithium oxalate is matched for use, so that the hardening process of the cement at low temperature is accelerated, and the early strength in a low-temperature environment is improved. By adding the silicon dioxide and the nanometer magnesium oxide, the compactness of the concrete is increased, the impermeability and the waterproof performance of the concrete are improved in cooperation with the organosilicon polymer, and the concrete meets the standard requirements of QC/R807-2020 Liquid Alkali-free Accelerator for Tunnel Spraying Concrete.
本申请涉及建筑工程领域，公开了一种适应低温环境下的抗渗无碱液体速凝剂，包括硫酸铝：400‑680份、络合早强剂：20‑120份、气相法纳米二氧化硅：5‑20份、草酸锂：10‑50份；有机硅聚合物：5‑30份、水：200‑570份、分散剂：1‑10份、有机硅聚合物：2‑10份。本发明通过使用络合剂早强剂，提高了速凝剂的稳定性，可以有效防止低温环境下的析晶现象；同时配合草酸锂的使用，加速了低温下水泥的硬化过程，提高了低温环境下的早期强度。通过加入二氧化硅和纳米氧化镁，增加了混凝土的密实度，配合有机硅聚合物提高了混凝土的抗渗防水性能，且符合QC/R807‑2020《隧道喷射混凝土用液体无碱速凝剂》的规范要求。
Impermeable alkali-free liquid accelerator adapting to low-temperature environment
The invention relates to the field of constructional engineering, and discloses an anti-permeability alkali-free liquid accelerator suitable for a low-temperature environment, and the anti-permeability alkali-free liquid accelerator comprises 400-680 parts of aluminum sulfate, 20-120 parts of a complexing early strength agent, 5-20 parts of fumed silica, and 10-50 parts of lithium oxalate. The water-based paint is prepared from the following components in parts by weight: 50-70 parts of water, 5-30 parts of an organic silicon polymer, 200-570 parts of water, 1-10 parts of a dispersing agent and 2-10 parts of the organic silicon polymer. By using the complexing agent and the early strength agent, the stability of the accelerator is improved, and the crystallization phenomenon in a low-temperature environment can be effectively prevented; meanwhile, the lithium oxalate is matched for use, so that the hardening process of the cement at low temperature is accelerated, and the early strength in a low-temperature environment is improved. By adding the silicon dioxide and the nanometer magnesium oxide, the compactness of the concrete is increased, the impermeability and the waterproof performance of the concrete are improved in cooperation with the organosilicon polymer, and the concrete meets the standard requirements of QC/R807-2020 Liquid Alkali-free Accelerator for Tunnel Spraying Concrete.
本申请涉及建筑工程领域，公开了一种适应低温环境下的抗渗无碱液体速凝剂，包括硫酸铝：400‑680份、络合早强剂：20‑120份、气相法纳米二氧化硅：5‑20份、草酸锂：10‑50份；有机硅聚合物：5‑30份、水：200‑570份、分散剂：1‑10份、有机硅聚合物：2‑10份。本发明通过使用络合剂早强剂，提高了速凝剂的稳定性，可以有效防止低温环境下的析晶现象；同时配合草酸锂的使用，加速了低温下水泥的硬化过程，提高了低温环境下的早期强度。通过加入二氧化硅和纳米氧化镁，增加了混凝土的密实度，配合有机硅聚合物提高了混凝土的抗渗防水性能，且符合QC/R807‑2020《隧道喷射混凝土用液体无碱速凝剂》的规范要求。
Impermeable alkali-free liquid accelerator adapting to low-temperature environment
一种适应低温环境下的抗渗无碱液体速凝剂
SHI LEI (author) / ZHU MENGSHOU (author) / CHU DAWEI (author) / WANG YOULIANG (author)
2024-11-12
Patent
Electronic Resource
Chinese
IPC:
C04B
Kalk
,
LIME
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