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Formless construction technology of an environment-friendly high-strength micro-expansion grouting material

A technology of construction technology and grouting material, which is applied in the direction of foundation structure engineering, on-site coagulation pavement, wellbore lining, etc., which can solve the difficulty in quality control of hidden projects of pre-embedded components, the construction of grouting material is not allowed, and the construction difficulty is increased and other issues, to achieve the effect of maximizing the effect of enterprises and society, shortening the construction period and reducing construction costs

Active Publication Date: 2017-10-24
ANGANG CONSTR CONSORTIUM
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] 1) Grouting requires supporting formwork, especially the general formwork for building vaults, sheds, beam bottoms, tunnels, and culvert vaults is limited, and special design and special formwork are required for it, which consumes a lot of materials and increases construction difficulty
[0004] 2) High labor intensity, labor-intensive, time-consuming, long construction period and high cost
[0005] 3) The positioning of embedded components and the quality control of concealed items are difficult
[0006] 4) Vibration is not allowed in the grouting material construction, and the air bubbles are difficult to eliminate, so there are defects of cells, honeycombs, and pockmarks

Method used

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  • Formless construction technology of an environment-friendly high-strength micro-expansion grouting material
  • Formless construction technology of an environment-friendly high-strength micro-expansion grouting material
  • Formless construction technology of an environment-friendly high-strength micro-expansion grouting material

Examples

Experimental program
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Effect test

example 1

[0041] 1) The main performance index of environment-friendly high-strength micro-expansion grouting material adopts compressive strength: 45MPa;

[0042] 2) Control the ratio of water to material: 0.25:1;

[0043] 3) The mixing water shall be in accordance with the "Concrete Mixing Water Standard" (JGJ63), the water temperature: 40°C, and the mortar mixer shall be used for mixing;

[0044] 4) Stirring and feeding sequence and stirring time: first add grouting material and reinforcing material and stir for 1 minute, then add water and stir, the total stirring time is 3 minutes;

[0045] 5) Before pouring, the surface of the reinforced base should be chiseled and cleaned, and no debris such as gravel, laitance, dust, oil, and release agent should be left; 24 hours before pouring, the surface of the base should be fully wet, and 1 hour before grouting, absorb water;

[0046] 6) Set the cloth scraper 3 on the upper end of the metal pouring pipe 9, the metal pipe is 5mm higher th...

example 2

[0050] 1) The main performance index of environment-friendly high-strength micro-expansion grouting material adopts compressive strength: 50MPa;

[0051] 2) Control the ratio of water to material: 0.23:1;

[0052] 3) The water for mixing shall comply with the "Standard for Water for Concrete Mixing" (JGJ63).

[0053]4) Stirring and feeding sequence and stirring time: first add grouting material and reinforcing material and stir for 1 minute, then add water and stir, the total stirring time is 3.5 minutes;

[0054] 5) Before pouring, the surface of the reinforced base should be chiseled, cleaned, and no debris should be left; 24 hours before pouring, the surface of the base should be fully wet, and 1 hour before grouting, the accumulated water should be absorbed;

[0055] 6) Set the cloth scraper 3 on the upper end of the metal pouring pipe 9, the metal pipe is 5mm higher than the upper plane of the clamp 8, and at the same time use bolts and nuts to fix the clamp and the meta...

example 3

[0059] 1) The main performance index of environment-friendly high-strength micro-expansion grouting material adopts compressive strength: 55MPa;

[0060] 2) Control the ratio of water to material: 0.21:1;

[0061] 3) The mixing water shall be in accordance with the "Concrete Mixing Water Standard" (JGJ63), the water temperature: 20°C, and the mortar mixer shall be used for mixing;

[0062] 4) Stirring and feeding sequence and stirring time: first add grouting material and reinforcing material and stir for 1min, then add water and stir, the total stirring time is 4.0min;

[0063] 5) Before pouring, the surface of the reinforced base should be chiseled, cleaned, and no debris should be left; 24 hours before pouring, the surface of the base should be fully wet, and 1 hour before grouting, the accumulated water should be absorbed;

[0064] 6) Set the cloth scraper 3 on the upper end of the metal pouring pipe 9, the metal pipe is 8mm higher than the upper plane of the clamp 8, and...

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Abstract

The invention provides a moldless construction process of an environment-friendly high-strength micro-expansion grouting material, which strictly controls the main performance, setting time, water-material ratio, mechanical stirring sequence and mechanical stirring time of the environment-friendly high-strength micro-expansion grouting material, The plunger pump is used for conveying during pouring, accompanied by compressed air pouring, and the cloth scraper on the pouring pipe is used to scrape the surface of the material during pouring. Through the above process and construction method, it is used to realize the non-toxicity of the environmentally friendly high-strength micro-expansion grouting material. Formwork pouring. The construction process of the present invention has less dust and greater uniformity during mixing, can cancel the formwork, reduce the labor intensity of the operator, and has no material consumption such as formwork, saving labor and time, less rebound, and higher pouring rate and productivity. Higher and lower costs; pre-embedded components, concealed items, and quality of pouring slurry during construction are intuitive, easy to detect and control; shorten construction period, reduce construction costs, and maximize corporate and social effects.

Description

technical field [0001] The invention relates to a formless construction technology of an environment-friendly high-strength micro-expansion grouting material in reinforcement projects such as concrete buildings, concrete bridges, concrete roads, concrete towering structures, water conservancy buildings, hydropower buildings, port buildings, tunnels and tunnels. Background technique [0002] At present, when reinforcing concrete buildings, concrete bridges, concrete roads, high-rise concrete structures, water conservancy buildings, hydropower buildings, port buildings, culverts and tunnels, etc., the high-level funnel method grouting behind the support formwork, self-weight method grouting or pressure method grouting is mainly used. The existing construction methods of grouting materials have the following disadvantages: [0003] 1) Grouting requires supporting formwork, especially the general formwork for building vaults, sheds, beam bottoms, tunnels, and culvert vaults is l...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): E04G23/02E01D22/00E01C7/14E01C19/44E02D15/02E21D11/10
Inventor 吕洪彦齐兴洲陈川钢崔瑛琦
Owner ANGANG CONSTR CONSORTIUM
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