Modified rubber cement seam repairing material for bridge

A modified rubber and technology for bridges, applied in the field of modified rubber cement joint filling materials for bridges, to achieve the effects of reducing road noise, high mechanical strength and corrosion resistance, and strong physical and chemical stability

Active Publication Date: 2017-11-24

厦门百城建材有限公司

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AI-Extracted Technical Summary

Problems solved by technology

[0003] In order to solve the problems existing in the bridge seam filling materials in the prior art, the present ...

Abstract

The invention provides a modified rubber cement seam repairing material for a bridge. A preparation method of the modified rubber cement seam repairing material comprises the following steps: firstly, preparing modified rubber powder: weighing the following components in parts by weight: 100 parts of natural rubber, 5 to 20 parts of glycidyl methacrylate, 5 to 10 parts of potassium stearate and 3 to 5 parts of calcium lignosulfonate; uniformly mixing and adding a mixture into an internal mixer, wherein the internal mixing time is 5min to 8min and the internal mixing temperature is 110 DEG C to 120 DEG C; adding 3 to 10 parts of 8 to 10 parts of high-styrene resin by weight and mixing for 10min to 15min; putting a mixed mixture on an extruder and extruding. According to the modified rubber cement seam repairing material for the bridge, provided by the invention, the modified rubber powder is added to increase the porosity of concrete and the deformation of rubber powder particles absorbs sound waves so that road surface noises are reduced; inorganic materials including talcum powder and quartz powder are introduced into modified rubber powder-emulsion so that a modified rubber powder-emulsion-inorganic powder three-dimensional net-shaped structure can be formed in a cement system and the material has a very good enhancing effect on a cement matrix system; the material has strong physical and chemical stability.

Application Domain

Ceramicware

Technology Topic

EmulsionInorganic materials +14

Examples

Experimental program(4)

Example Embodiment

[0019] Example 1

[0020] A modified rubber cement jointing material for bridges, and its manufacturing method includes the following steps: firstly manufacturing modified rubber powder: weigh 100 parts by weight of natural rubber, 15 parts of glycidyl methacrylate, and 6 parts of potassium stearate , 3 parts of calcium lignosulfonate are mixed uniformly, add to the internal mixer, banbury time is 6 minutes, banbury temperature is 120℃, add 10 parts by weight of high styrene resin 5 parts, mix for 10 minutes, and mix well The compound is placed on the extruder for extrusion. The extrusion temperature is 65°C, the extruded material is put into a pulverizer for pulverization to obtain modified rubber powder,

[0021] To prepare modified rubber powder emulsion: add 20 parts by weight of silicone acrylic emulsion, 10 parts of butyl acrylate, 5 parts of silica sol, 2 parts of sodium succinate sulfonate, and 2 parts of cetyltrimethylammonium bromide. In the mixer, stir for 2 minutes at a stirring speed of 300r/min, then add 10 parts of the above modified rubber powder and stir for 5 minutes at a speed of 700r/min, then adjust the pH to 7.5 to obtain a modified rubber powder emulsion.

[0022] Preparation of modified rubber cement joint material for bridges: mix 12 parts by weight of Portland cement, 10 parts of gypsum, 5 parts of talcum powder, and 4 parts of quartz powder, and mix them for 5 minutes before grinding, and the grinding time is 1 hour. , The mixture is obtained; the resulting mixture is stirred in water, then 2 parts of fatty alcohol polyoxyethylene ether, 0.6 part of silane coupling agent, 0.6 part of dibutyl phthalate are added, and then placed in a mixer and stirred at a stirring speed of 200r/min After 9 minutes, add 10 parts of the above modified rubber powder emulsion and stir evenly to obtain the modified rubber cement joint material for bridges.

Example Embodiment

[0023] Example 2

[0024] A modified rubber cement jointing material for bridges, and its manufacturing method includes the following steps: firstly manufacturing modified rubber powder: weigh 100 parts by weight of natural rubber, 20 parts of glycidyl methacrylate, and 10 parts of potassium stearate , Mix 5 parts of calcium lignosulfonate evenly, add it to the internal mixer, banbury time 8 minutes, banbury temperature 110℃, add 8 parts by weight of high styrene resin 7 parts, mix for 13 minutes, and mix well The compound is placed on the extruder for extrusion. The extrusion temperature is 55°C, and the extruded material is put into a pulverizer for pulverization to obtain modified rubber powder.

[0025] Prepare modified rubber powder emulsion: add 22 parts by weight of silicone acrylic emulsion, 15 parts of butyl acrylate, 9 parts of silica sol, 3 parts of sodium succinate sulfonate, and 2 parts of cetyltrimethylammonium bromide. In the mixer, stir for 2 minutes at a stirring speed of 400r/min, then add 12 parts of the above modified rubber powder and stir for 8 minutes at a speed of 700r/min, and then adjust the pH to 8.0 to obtain a modified rubber powder emulsion.

[0026] Preparation of modified rubber cement joint materials for bridges: mix 13 parts by weight of Portland cement, 11 parts of gypsum, 7 parts of talc powder, 4 parts of quartz powder, and mix for 3 minutes before grinding, and the grinding time is 2 hours. , The mixture is obtained; the resulting mixture is added to water and stirred, then 1 part of fatty alcohol polyoxyethylene ether, 0.7 part of silane coupling agent, 0.6 part of dibutyl phthalate are added, and then placed in a mixer and stirred at a stirring speed of 250r/min After 8 minutes, finally add 8 parts of the above modified rubber powder emulsion and stir evenly to obtain a modified rubber cement joint material for bridges.

Example Embodiment

[0027] Example 3

[0028] A modified rubber cement jointing material for bridges, and its manufacturing method includes the following steps: firstly manufacture modified rubber powder: weigh 100 parts by weight of natural rubber, 12 parts of glycidyl methacrylate, and 8 parts of potassium stearate , 3 parts of calcium lignosulfonate are mixed uniformly, add to the internal mixer, banbury time is 6 minutes, banbury temperature is 115℃, add 9 parts by weight of high styrene resin 6 parts, mix for 11 minutes, and mix well The compound is placed on the extruder for extrusion. The extrusion temperature is 55°C, and the extruded material is put into a pulverizer for pulverization to obtain modified rubber powder.

[0029] To prepare modified rubber powder emulsion: add 26 parts by weight of silicone acrylic emulsion, 14 parts of butyl acrylate, 8 parts of silica sol, 3 parts of sodium succinate sulfonate, and 4 parts of cetyltrimethylammonium bromide. Stir in the mixer at 350r/min for 2 minutes, then add 8 parts of the above modified rubber powder and stir for 8min at 650r/min, then adjust the pH to 7.5 to obtain a modified rubber powder emulsion.

[0030] Preparation of modified rubber cement joint material for bridges: mix 10 parts by weight of Portland cement, 10 parts of gypsum, 7 parts of talcum powder, 3 parts of quartz powder, and mix for 5 minutes and then grind, and the grinding time is 1.5 hours. , The mixture is obtained; the obtained mixture is added to water and stirred, then 1 part of fatty alcohol polyoxyethylene ether, 0.5 part of silane coupling agent, 0.6 part of dibutyl phthalate are added, and then placed in a mixer and stirred at a stirring speed of 300r/min After 7 minutes, finally add 8 parts of the above modified rubber powder emulsion and stir evenly to obtain the modified rubber cement joint material for bridges.

PUM

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