Method for realizing adhesion of new and old concrete

A new and old concrete, fine stone concrete technology, applied in the direction of adhesive types, building material processing, ester copolymer adhesives, etc., can solve the problems of difficult driving, large capital consumption, long construction time, etc., and achieve penetration Strong, good fluidity, cost-saving effect

Inactive Publication Date: 2009-12-02
赵海刚
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

This treatment method involves a large amount of engineering, large capital consumption, long construction time, and a great impact on traffic. However, the newly built roads are used for a long time, which fundamentally solves the problem of driving difficulties caused by road damage.

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0018] In the process of pouring 600mm×600mm columns, the concrete pouring is interrupted for some reason, and it has been 5 hours since the pouring can be resumed, exceeding the initial setting time of the concrete, and the following methods are used to deal with it:

[0019] 1. Production of treatment agent: 10kg of cyclohexene, 20kg of methyl acrylate, 25kg of IC type finish oil produced by Kunming Building Waterproof Material Factory, 12kg of nonylphenol polyoxyethylene (10) ether, fatty alcohol polyoxyethylene (15 ) ether 6kg. Production method: Mix cyclohexene and methyl acrylate in proportion, stir at 30°C under normal pressure for 6 hours, then add IC type finish oil produced by Kunming Building Waterproof Material Factory, nonylphenol polyoxyethylene ( 10) Ether, fatty alcohol polyoxyethylene (15) ether, stirred under normal pressure at a temperature of 30° C. for 4 hours to obtain a milky white liquid.

[0020] Second, the construction steps to realize the bonding o...

Embodiment 2

[0024] Road new and old concrete pavement bonding treatment.

[0025] 1. Production of treatment agent: 20kg of cyclohexene, 35kg of butyl acrylate, 40kg of IC type finish oil produced by Kunming Building Waterproof Material Factory, 22kg of nonylphenol polyoxyethylene (10) ether, fatty alcohol polyoxyethylene (15 ) ether 15kg. Production method: Mix cyclohexene and butyl acrylate in proportion, stir at 15°C under normal pressure for 8 hours, then add IC type finish oil produced by Kunming Building Waterproof Material Factory, nonylphenol polyoxyethylene ( 10) Ether, fatty alcohol polyoxyethylene (15) ether, stirred under normal pressure at a temperature of 15° C. for 6 hours to obtain a milky white liquid.

[0026] Second, the construction steps to realize the bonding of new and old concrete:

[0027] ① Mix the above-mentioned treatment agent into the stirred concrete and stir evenly, treatment agent: mixed concrete = 1:100; ② Apply the treatment agent to the joints of the ...

Embodiment 3

[0030] During the pouring process of the building slab, the concrete pouring is interrupted for some reason, and the initial setting time of the concrete has passed when the pouring can be resumed, and the following methods are used to deal with it:

[0031] 1. Production of treatment agent: 17kg of cyclohexene, 30kg of butyl acrylate, 35kg of IC type finish oil produced by Kunming Building Waterproof Material Factory, 18kg of nonylphenol polyoxyethylene (10) ether, fatty alcohol polyoxyethylene (15 ) ether 12kg. Production method: Mix cyclohexene and butyl acrylate in proportion, stir at 25°C under normal pressure for 6 hours, then add IC type finish oil produced by Kunming Building Waterproof Material Factory, nonylphenol polyoxyethylene ( 10) Ether, fatty alcohol polyoxyethylene (15) ether, stirred under normal pressure at a temperature of 25° C. for 5 hours to obtain a milky white liquid.

[0032] Second, the construction steps to realize the bonding of new and old concre...

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PUM

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Abstract

The invention discloses a method for realizing adhesion of new and old concrete, and aims to provide a method capable of connecting the new and old concrete into a whole for collaboration. The technique comprises the following steps: (1) producing a treating agent which comprises 10 to 20 portions of cyclohexene, 20 to 35 portions of acrylic ester, 25 to 40 portions of IC finishing varnish produced by Kunming Building Waterproof Material Factory, 12 to 22 portions of nonylphenol polyoxyethylene (10) ether and 6 to 15 portions of fatty alcohol-polyoxyethylene (15) ether, and is prepared by stirring the materials into milk-white liquid; and (2) realizing the adhesion of the new and old concrete through the treating agent by the following steps: 1, blending the treating agent into stirred concrete for even stirring, wherein the ratio of the treating agent to the stirred concrete is equal to 1:50-100; and 2, pouring the treating agent on the surface of the old concrete, making the old concrete fully absorb the treating agent, casting the concrete obtained in step 1 before the treating agent is solidified, tamping the concrete, and continuously casting common concrete.

Description

technical field [0001] The invention relates to a method for repairing concrete, and more specifically relates to a method for bonding old and new concrete into a whole. Background technique [0002] In the construction of various housing constructions, roads, and bridges, in order to ensure the bonding strength between concrete, the interval between pouring concrete should not exceed the initial setting time of concrete, and the interval between pouring concrete should not exceed 2 hours at room temperature. No more than 1 hour, when the specified time is exceeded, the concrete poured twice cannot be well bonded. Concrete pouring that exceeds the interval time has the following treatment methods depending on the specific situation: ① For the concrete poured in parallel, the joints should be treated as construction joints; pile. Usually there are the following treatment methods: a. If the position of the broken pile is low, take rework; b. For temporary projects or seconda...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): E04G21/02E01C11/00E01C11/06C09J133/06C04B26/04
Inventor 赵海刚
Owner 赵海刚
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