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Special adhesive for FRP-reinforced concrete

A technology for adhesives and concrete, applied in the direction of adhesives, adhesive additives, polymer adhesive additives, etc., can solve problems such as poor shear resistance and poor flame retardancy, and achieve improved shear strength, Improve the flame retardant performance, enhance the effect of bond strength

Inactive Publication Date: 2018-09-18
郦璋
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] The technical problem mainly solved by the present invention is: aiming at the shortcomings of traditional FRP reinforced concrete adhesives, such as poor shear resistance and poor flame retardancy, a special adhesive for FRP reinforced concrete is provided

Method used

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Examples

Experimental program
Comparison scheme
Effect test

example 1

[0028] Add sodium alginate and water into the beaker at a mass ratio of 1:100, stir and mix with a glass rod for 30 minutes, let it stand for swelling for 4 hours, and then move the beaker to a magnetic stirrer with a digital speed measurement and constant temperature at a temperature of 95°C. Under the condition of rotation speed of 500r / min, heat and stir to dissolve for 50min, then add 0.5 times the mass of sodium alginate and 5% sodium periodate solution to No. , continue heating, stirring and mixing for 60min to obtain the modified sodium alginate solution; in parts by weight, put 8 parts of Phanerochaete chrysosporium, 2 parts of glucose solution with a mass fraction of 0.5%, and 30 parts of deionized water in Put the single-necked flask into a single-necked flask, and place the single-necked flask in a magnetic stirrer with a digital display speed measurement and constant temperature. Under the conditions of a temperature of 32 ° C and a rotational speed of 300 r / min, st...

example 2

[0030]Add sodium alginate and water into the beaker at a mass ratio of 1:100, stir and mix with a glass rod for 30 minutes, let it stand for swelling for 4 hours, and then move the beaker to a magnetic stirrer with a digital speed measurement and constant temperature at a temperature of 95°C. Under the condition of rotation speed of 500r / min, heat and stir to dissolve for 50min, then add 0.5 times the mass of sodium alginate and 5% sodium periodate solution to No. , continue heating, stirring and mixing for 60min to obtain the modified sodium alginate solution; in parts by weight, put 8 parts of Phanerochaete chrysosporium, 2 parts of glucose solution with a mass fraction of 0.5%, and 30 parts of deionized water in Put the single-necked flask into a single-necked flask, and place the single-necked flask in a magnetic stirrer with a digital display speed measurement and constant temperature. Under the conditions of a temperature of 32 ° C and a rotational speed of 300 r / min, sti...

example 3

[0032] Add sodium alginate and water into the beaker at a mass ratio of 1:100, stir and mix with a glass rod for 30 minutes, let it stand for swelling for 4 hours, and then move the beaker to a magnetic stirrer with a digital speed measurement and constant temperature at a temperature of 95°C. Under the condition of rotation speed of 500r / min, heat and stir to dissolve for 50min, then add 0.5 times the mass of sodium alginate and 5% sodium periodate solution to No. , continue heating, stirring and mixing for 60min to obtain the modified sodium alginate solution; in parts by weight, put 8 parts of Phanerochaete chrysosporium, 2 parts of glucose solution with a mass fraction of 0.5%, and 30 parts of deionized water in Put the single-necked flask into a single-necked flask, and place the single-necked flask in a magnetic stirrer with a digital display speed measurement and constant temperature. Under the conditions of a temperature of 32 ° C and a rotational speed of 300 r / min, st...

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Abstract

The invention discloses a special adhesive for FRP-reinforced concrete, and belongs to the technical field of concrete structure repair. 5-8 parts by weight of phanerochaete chrysosporium, 1 to 2 parts by weight of a glucose solution and 20-30 parts by weight of deionized water are stirred and mixed at a constant temperature to obtain a phanerochaete chrysosporium bacteria solution; 60 to 80 partsby weight of epoxy resin, 20 to 30 parts by weight of acrylic acid, 8 to 10 parts by weight of a curing agent, 8 to 10 parts by weight of calcium hydrogencarbonate, 8 to 10 parts by weight of urea, 10 to 20 parts by weight of a modified sodium alginate liquid, 5-8 parts by weight of a silane coupling agent, 10-20 parts by weight of phospholipids, 10-20 parts by weight of the phanerochaete chrysosporium bacteria solution and 10-20 parts by weight of alkaline phenolic resin are placed in a mixing machine for mixing and stirring for 40-60min at the rotation speed of 500-800r / min to obtain the special adhesive for the FRP-reinforced concrete. The the special adhesive for the FRP-reinforced concrete has the characteristics of excellent shear resistance and flame retardant performance.

Description

technical field [0001] The invention discloses a special adhesive for FRP reinforced concrete, which belongs to the technical field of concrete structure repair. Background technique [0002] FRP composite material is a new type of composite material used in the reinforcement of civil engineering structures. Because FRP has many well-known advantages (light weight, high strength, corrosion resistance, etc.), many scholars and engineers in the civil engineering field have widely used it in structural reinforcement engineering in the past 10 years, and have carried out a lot of research work. The most common method of using FRP for structural reinforcement is to paste FRP cloth (including sheets) on the surface of the reinforced part, or use FRP bars (rods) to be embedded in the concrete groove on the surface of the reinforced part (inside the concrete protection layer) . Obviously, no matter which reinforcement method is used, the bonding strength between FRP and concrete s...

Claims

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Application Information

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IPC IPC(8): C09J4/02C09J4/06C09J11/00C09J11/08C09J9/00C08B37/04
CPCC09J4/06C08B37/0084C09J9/00C09J11/00C09J11/08
Inventor 郦璋朱冬梅黄浩
Owner 郦璋
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