A platform for research: civil engineering, architecture and urbanism
A platform for research: civil engineering, architecture and urbanism
Underwater sealant for concrete and preparation method thereof
The invention provides an underwater sealant for concrete and a preparation method thereof, and belongs to the technical field of underwater sealing materials. The underwater sealant for concrete is prepared by mixing a component A and a component B in a mass ratio of 1: (0.4-0.55). Wherein the component A comprises 30-45 parts of Portland cement, 35-45 parts of coarse sand, 25-38 parts of fine sand, 5-10 parts of an active admixture, 2-5 parts of a composite anti-dispersing agent, 3-6 parts of an expanding agent, 20-30 parts of fly ash, 15-20 parts of silica fume and 1-3 parts of a water reducing agent; and the component B is prepared by mixing hydroxy propyl cellulose, calcium metasilicate and xanthan gum in a mass ratio of 1: (2-5): (0.3-1). The sealant is convenient to use, and can be used after the component A and the component B are quickly and uniformly mixed according to the mass ratio. The sealant provided by the invention can be rapidly condensed underwater, has high underwater compressive strength, and provides convenience for underwater concrete repair work.
本发明提供了一种混凝土用水下密封剂及其制备方法，属于水下密封材料技术领域。本发明的混凝土用水下密封剂由质量配比为1：0.4～0.55的A组分和B组分混合制备得到。其中A组分包含30～45份硅酸盐水泥、35～45份粗砂、25～38份细砂、5～10份活性掺合料、2～5份复合抗分散剂、3～6份膨胀剂、20～30份粉煤灰、15～20份硅灰、1～3份减水剂；B组分由质量比为1：2～5：0.3～1的羟丙基纤维素、偏硅酸钙和黄原胶混合得到。本发明的密封剂使用方便，将A组分和B组分按照质量配比快速混合均匀即可使用。本发明的密封剂能够在水下快速凝结、水下抗压强度高，为水下混凝土修补工作提供方便。
Underwater sealant for concrete and preparation method thereof
The invention provides an underwater sealant for concrete and a preparation method thereof, and belongs to the technical field of underwater sealing materials. The underwater sealant for concrete is prepared by mixing a component A and a component B in a mass ratio of 1: (0.4-0.55). Wherein the component A comprises 30-45 parts of Portland cement, 35-45 parts of coarse sand, 25-38 parts of fine sand, 5-10 parts of an active admixture, 2-5 parts of a composite anti-dispersing agent, 3-6 parts of an expanding agent, 20-30 parts of fly ash, 15-20 parts of silica fume and 1-3 parts of a water reducing agent; and the component B is prepared by mixing hydroxy propyl cellulose, calcium metasilicate and xanthan gum in a mass ratio of 1: (2-5): (0.3-1). The sealant is convenient to use, and can be used after the component A and the component B are quickly and uniformly mixed according to the mass ratio. The sealant provided by the invention can be rapidly condensed underwater, has high underwater compressive strength, and provides convenience for underwater concrete repair work.
本发明提供了一种混凝土用水下密封剂及其制备方法，属于水下密封材料技术领域。本发明的混凝土用水下密封剂由质量配比为1：0.4～0.55的A组分和B组分混合制备得到。其中A组分包含30～45份硅酸盐水泥、35～45份粗砂、25～38份细砂、5～10份活性掺合料、2～5份复合抗分散剂、3～6份膨胀剂、20～30份粉煤灰、15～20份硅灰、1～3份减水剂；B组分由质量比为1：2～5：0.3～1的羟丙基纤维素、偏硅酸钙和黄原胶混合得到。本发明的密封剂使用方便，将A组分和B组分按照质量配比快速混合均匀即可使用。本发明的密封剂能够在水下快速凝结、水下抗压强度高，为水下混凝土修补工作提供方便。
Underwater sealant for concrete and preparation method thereof
一种混凝土用水下密封剂及其制备方法
2023-03-14
Patent
Electronic Resource
Chinese
IPC:
C04B
Kalk
,
LIME
Concrete surface reinforcing sealant and preparation method thereof
| European Patent Office | 2016