Concrete pipe grouting agent and preparation method thereof

Abstract

The invention discloses a concrete pipe grouting agent and a preparation method thereof. The grouting agent comprises a swelling agent, an active agent, a water retaining agent, a stabilizer and an anti-freezing agent. The preparation method of the grouting agent comprises the following steps: calcining a configured first mixture at a high temperature, adding the active agent step by step, and then continuing to maintain the low temperature calcination; preparing a second mixture; adding organic bentonite, polyacrylic acid, sodium alginate, latex powder and mineral oil into the second mixturestep by step; adding the stabilizer into the second mixture, mixing with the first mixture, and then adding the anti-freezing agent; stirring in a dry mixer; and drying. According to the invention, the type and the content of raw materials are optimized, the concrete grouting agent is prepared, and slurry performance indexes are improved through a synergistic effect among the components, so that the grouting fluidity, the bleeding rate, the expansion ratio, the mechanics performance and other indexes can meet and exceed the technical specification requirements, and the construction quality isfurther ensured.

Description

technical field

[0001] The invention relates to a concrete pipeline grouting agent and a preparation method. Background technique

[0002] With the rapid development of my country's economy, my country's railway construction, especially the construction of passenger dedicated lines, has entered a period of rapid development. At present, the scale of passenger dedicated lines under construction and about to start construction in China is huge, of which bridges account for nearly 50%, and high-speed trains run fast. The quality of passenger dedicated line projects is directly related to the safety of people's lives and property. In the construction of passenger dedicated line bridges, bridges and other structural projects must be guaranteed to be used for 100 years. In order to ensure the quality of bridge construction in passenger dedicated line projects, the Ministry of Railways issued on July 1, 2006 Implemented the "TB / T 3192-2008 Railway Post-tensioned Prestressed Concrete ...

Examples

Embodiment 1

[0038] This embodiment provides a concrete pipeline grouting agent, which includes the following components in parts by mass:

[0039] Bulking agents, which include:

[0040] 10 parts of calcium aluminate, 8 parts of alum stone, 5 parts of fly ash, 3 parts of gypsum, 2 parts of iron;

[0041] active agents, which include:

[0042] 0.5 part of sodium dodecylbenzenesulfonate, 0.3 part of cetyltrimethylammonium bromide;

[0043] Water retaining agents, which include:

[0044] 0.2 parts of low viscosity carboxymethyl cellulose, 0.3 parts of methyl hydroxyethyl cellulose ether, 0.2 parts of sodium polyacrylate, 0.1 parts of defoamer, 0.2 parts of diatomaceous earth;

[0045] Stabilizers, which include:

[0046] 0.2 part of organic bentonite, 0.4 part of polyacrylate, 0.3 part of sodium alginate, 0.5 part of latex powder, 0.1 part of mineral oil;

[0047] Antifreeze, which includes:

[0048] 0.8 part of furan resin, 0.1 part of stearic acid, 0.3 part of phenylacetic acid, 0.5 ...

Embodiment 2

[0050] The present embodiment provides a kind of preparation method of concrete pipeline grouting agent, and the steps comprise:

[0051] 1) Grinding 10 parts of calcium aluminate, 8 parts of alunite, 5 parts of fly ash, 3 parts of gypsum, and 2 parts of iron in parts by weight to obtain the first mixture with a particle size of 8 mm;

[0052] 2) Put the first mixed material into a calciner to calcinate into expanded clinker at a temperature of 800°C for 3 hours;

[0053] 3) Add 0.5 part of sodium dodecylbenzenesulfonate into the calciner to continue calcining, the calcining temperature is 400°C, and calcining for 2 hours;

[0054] 4) Add 0.3 parts of cetyltrimethylammonium bromide into the calciner to continue calcining, the calcining temperature is 100°C, and calcining for 1 hour;

[0055] 5) Mix 0.2 parts of low-viscosity carboxymethyl cellulose, 0.3 parts of methyl hydroxyethyl cellulose ether, 0.2 parts of sodium polyacrylate, 0.1 parts of defoamer, and 0.2 parts of diat...

Embodiment 3

[0061]This embodiment provides a concrete pipeline grouting agent, which includes the following components in parts by mass:

[0062] Bulking agents, which include:

[0063] 12 parts of calcium aluminate, 10 parts of alunite, 7 parts of fly ash, 5 parts of gypsum, 4 parts of iron;

[0064] active agents, which include:

[0065] 0.8 part of sodium dodecylbenzenesulfonate, 0.5 part of cetyltrimethylammonium bromide;

[0066] Water retaining agents, which include:

[0067] 0.4 part of low viscosity carboxymethyl cellulose, 0.5 part of methyl hydroxyethyl cellulose ether, 0.4 part of sodium polyacrylate, 0.3 part of defoamer, 0.4 part of diatomaceous earth;

[0068] Stabilizers, which include:

[0069] 0.5 part of organic bentonite, 0.6 part of polyacrylate, 0.5 part of sodium alginate, 0.7 part of latex powder, 0.3 part of mineral oil;

[0070] Antifreeze, which includes:

[0071] 1.2 parts of furan resin, 0.3 parts of stearic acid, 0.5 parts of phenylacetic acid, 0.7 parts...

technical field

[0001] The invention relates to a concrete pipeline grouting agent and a preparation method. Background technique

[0002] With the rapid development of my country's economy, my country's railway construction, especially the construction of passenger dedicated lines, has entered a period of rapid development. At present, the scale of passenger dedicated lines under construction and about to start construction in China is huge, of which bridges account for nearly 50%, and high-speed trains run fast. The quality of passenger dedicated line projects is directly related to the safety of people's lives and property. In the construction of passenger dedicated line bridges, bridges and other structural projects must be guaranteed to be used for 100 years. In order to ensure the quality of bridge construction in passenger dedicated line projects, the Ministry of Railways issued on July 1, 2006 Implemented the "TB / T 3192-2008 Railway Post-tensioned Prestressed Concrete ...

Examples

Embodiment 1

[0038] This embodiment provides a concrete pipeline grouting agent, which includes the following components in parts by mass:

[0039] Bulking agents, which include:

[0040] 10 parts of calcium aluminate, 8 parts of alum stone, 5 parts of fly ash, 3 parts of gypsum, 2 parts of iron;

[0041] active agents, which include:

[0042] 0.5 part of sodium dodecylbenzenesulfonate, 0.3 part of cetyltrimethylammonium bromide;

[0043] Water retaining agents, which include:

[0044] 0.2 parts of low viscosity carboxymethyl cellulose, 0.3 parts of methyl hydroxyethyl cellulose ether, 0.2 parts of sodium polyacrylate, 0.1 parts of defoamer, 0.2 parts of diatomaceous earth;

[0045] Stabilizers, which include:

[0046] 0.2 part of organic bentonite, 0.4 part of polyacrylate, 0.3 part of sodium alginate, 0.5 part of latex powder, 0.1 part of mineral oil;

[0047] Antifreeze, which includes:

[0048] 0.8 part of furan resin, 0.1 part of stearic acid, 0.3 part of phenylacetic acid, 0.5 ...

Embodiment 2

[0050] The present embodiment provides a kind of preparation method of concrete pipeline grouting agent, and the steps comprise:

[0051] 1) Grinding 10 parts of calcium aluminate, 8 parts of alunite, 5 parts of fly ash, 3 parts of gypsum, and 2 parts of iron in parts by weight to obtain the first mixture with a particle size of 8 mm;

[0052] 2) Put the first mixed material into a calciner to calcinate into expanded clinker at a temperature of 800°C for 3 hours;

[0053] 3) Add 0.5 part of sodium dodecylbenzenesulfonate into the calciner to continue calcining, the calcining temperature is 400°C, and calcining for 2 hours;

[0054] 4) Add 0.3 parts of cetyltrimethylammonium bromide into the calciner to continue calcining, the calcining temperature is 100°C, and calcining for 1 hour;

[0055] 5) Mix 0.2 parts of low-viscosity carboxymethyl cellulose, 0.3 parts of methyl hydroxyethyl cellulose ether, 0.2 parts of sodium polyacrylate, 0.1 parts of defoamer, and 0.2 parts of diat...

Embodiment 3

[0061]This embodiment provides a concrete pipeline grouting agent, which includes the following components in parts by mass:

[0062] Bulking agents, which include:

[0063] 12 parts of calcium aluminate, 10 parts of alunite, 7 parts of fly ash, 5 parts of gypsum, 4 parts of iron;

[0064] active agents, which include:

[0065] 0.8 part of sodium dodecylbenzenesulfonate, 0.5 part of cetyltrimethylammonium bromide;

[0066] Water retaining agents, which include:

[0067] 0.4 part of low viscosity carboxymethyl cellulose, 0.5 part of methyl hydroxyethyl cellulose ether, 0.4 part of sodium polyacrylate, 0.3 part of defoamer, 0.4 part of diatomaceous earth;

[0068] Stabilizers, which include:

[0069] 0.5 part of organic bentonite, 0.6 part of polyacrylate, 0.5 part of sodium alginate, 0.7 part of latex powder, 0.3 part of mineral oil;

[0070] Antifreeze, which includes:

[0071] 1.2 parts of furan resin, 0.3 parts of stearic acid, 0.5 parts of phenylacetic acid, 0.7 parts...

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