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Environment-friendly fair-faced concrete pumping agent and preparation method thereof

A technology of fair-faced concrete and pumping agent, which is applied in the field of concrete additives, and can solve problems such as easy bleeding of concrete, slump retention and water reduction effects need to be further improved, and poor frost resistance, so as to improve honeycomb pockmarking, Guaranteed workability and fluidity, slump retention and water-reducing effects

Inactive Publication Date: 2020-06-12
路雪芹
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, the concrete using this pumping agent is prone to bleeding, poor frost resistance, and the effect of slump retention and water reduction needs to be further improved

Method used

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  • Environment-friendly fair-faced concrete pumping agent and preparation method thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0031]An environment-friendly clear-water concrete pumping agent is characterized in that it comprises the following components in parts by weight: 1 part of epoxy-based single-terminated silicone oil modified casein, dihydro-2,4,6-trioxo -1,3,5-triazine-1,3(2H,4H)-dipropionic acid / 2-(diethanolamino)ethanesulfonate polycondensate 30 parts, humic acid 2 parts, phosphate modified starch 0.1 part, 0.2 part of simethicone oil, 0.5 part of magnesite powder, 0.5 part of sodium sucrose octasulfate, and 35 parts of water; the particle diameter of the magnesite powder is 300 mesh.

[0032] The preparation method of the epoxy mono-capped silicone oil modified casein comprises the following steps: adding epoxy mono-capped silicone oil, casein and sodium hydroxide to the mixed solvent, stirring and reacting at 80°C for 4 hours , followed by rotary evaporation to remove the solvent, and then washed with water for 3 times, and finally placed in a vacuum drying oven at 85° C. to dry to const...

Embodiment 2

[0036] An environment-friendly clear-water concrete pumping agent is characterized in that it comprises the following components in parts by weight: 1.5 parts of epoxy-based single-terminated silicone oil modified casein, dihydro-2,4,6-trioxo -1,3,5-triazine-1,3(2H,4H)-dipropionic acid / 2-(diethanolamino)ethanesulfonate polycondensate 33 parts, humic acid 2.5 parts, phosphate modified starch 0.15 parts part, 0.3 part of emulsified silicone oil, 0.7 part of magnesite ore powder, 0.7 part of sodium sucrose octasulfate, and 37 parts of water; the particle diameter of the magnesite ore powder is 350 mesh.

[0037] The preparation method of the epoxy mono-terminated silicone oil modified casein comprises the following steps: adding epoxy mono-terminated silicone oil, casein and sodium hydroxide to the mixed solvent, stirring and reacting at 83°C for 4.5 hours , followed by rotary evaporation to remove the solvent, and then washed with water for 4 times, and finally placed in a vacuu...

Embodiment 3

[0041] An environment-friendly clear-water concrete pumping agent is characterized in that it comprises the following components in parts by weight: 2 parts of epoxy-based single-terminated silicone oil modified casein, dihydro-2,4,6-trioxo -1,3,5-triazine-1,3(2H,4H)-dipropionic acid / 2-(diethanolamino)ethanesulfonate polycondensate 35 parts, humic acid 3 parts, phosphate modified starch 0.2 part, 0.35 part of simethicone oil, 1 part of magnesite powder, 1 part of sodium sucrose octasulfate, and 40 parts of water; the particle diameter of the magnesite powder is 400 mesh.

[0042] The preparation method of the epoxy mono-terminated silicone oil modified casein comprises the following steps: adding epoxy mono-terminated silicone oil, casein and sodium hydroxide to the mixed solvent, stirring and reacting at 85°C for 5 hours , followed by rotary evaporation to remove the solvent, then washed with water for 5 times, and finally placed in a vacuum drying oven at 90° C. to dry to co...

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Abstract

The invention discloses an environment-friendly fair-faced concrete pumping agent which comprises the following components in parts by weight: 1 to 3 parts of epoxy group single-terminated silicone oil modified casein, 1 to 3 parts of dihydro- 2,4,6-trioxo-1,3,5-triazine-1,3-(2H,4H)-dipropionic acid / 2-(diethanolamine) sodium ethanesulfonate polycondensate, 2 to 4 parts of humic acid, 0.1 to 0.3 part of phosphate modified starch, 0.2 to 0.5 part of an antifoaming agent, 0.5 to 1.5 parts of magnesite powder, 0.5 to 1.5 parts of sucrose octasulphate sodium and 35 to 45 parts of water. The invention further discloses a preparation method of the environment-friendly bare concrete pumping agent. The environment-friendly fair-faced concrete pumping agent disclosed by the invention can effectivelyimprove the phenomenon of honeycomb pitted surfaces on the surface of fair-faced concrete; according to the pumping agent, the workability and fluidity of concrete in the pumping process are guaranteed, the slump retaining and water reducing effects are remarkable, the mixing amount is small, fair-faced concrete using the pumping agent does not bleed water and is good in impermeability, waterproofness and frost resistance, and the pumping agent is environmentally friendly in the preparation and use process and high in economic value, social value and ecological value.

Description

technical field [0001] The invention relates to the technical field of concrete additives, in particular to an environment-friendly clear-water concrete pumping agent and a preparation method thereof. Background technique [0002] Concrete is one of the most important contemporary building materials. It is made of cementing materials, aggregates, aggregates and water in a certain proportion. It is formed by stirring and vibrating and cured under certain conditions. Rich, simple production process, low price, high compressive strength, wide range of strength grades, good durability, etc., are widely used in civil engineering, as structural materials in civil engineering, therefore, its performance directly determines Civil engineering quality. [0003] Fair-faced concrete, also known as decorative concrete, is named for its great decorative effect, that is, the concrete is cast at one time, and the surface is not decorated after the pouring formwork is removed. The natural ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C04B24/42
CPCC04B40/0039C04B24/42C04B24/166C04B24/24C04B24/243C04B2103/50C04B14/26C04B24/16C04B22/002
Inventor 路雪芹
Owner 路雪芹
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