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Method for preparing water-resistant self-repairing bridge deck pavement material

A bridge deck paving and self-repairing technology, applied in bridges, bridge parts, bridge construction, etc., can solve problems such as water resistance, poor low-temperature crack resistance, and affecting the durability of bridge decks, so as to achieve good water resistance and prolong service life Years, good effect of low temperature resistance

Inactive Publication Date: 2017-01-11
CHANGZHOU DINGRI ENVIRONMENTAL PROTECTION TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] The technical problem to be solved by the present invention: In view of the problems that the current common bridge deck paving materials have poor water resistance and low temperature crack resistance, and are prone to cracks affecting the durability of the bridge deck, the present invention uses gluten as a toughening filler, supplemented by rosin And kiwi juice rich in active ingredients, under the action of microorganisms, modify the natural asphalt, increase the number of active groups of the asphalt and the chemical bonding force between the substrates, so as to achieve the effect of thickening and toughening, and then use stalactites as crystal seeds, in When exposed to moisture and carbon dioxide, it will naturally grow and fill the gaps, which has a self-healing effect. Finally, it will work with oleaginous algae and oleaginous microorganisms to increase the number of hydrophobic ester groups on its surface, making it have excellent water resistance. Finally It can be compounded with modified asphalt to obtain bridge deck pavement materials. The invention effectively solves the problems of common bridge deck pavement materials such as poor water resistance, low temperature crack resistance, and easy cracks that affect the durability of bridge decks. It has broad applications Application prospects

Method used

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Examples

Experimental program
Comparison scheme
Effect test

example 1

[0019] First, according to the mass ratio of 2:1, mix flour and distilled water and knead it into a dough, put the obtained dough into a water basin, add water to the basin until the dough is completely submerged, manually wash the dough, and wait until the distilled water in the basin becomes Change the water again when it is milky white, continue to wash the dough until the dough becomes too small to wash out the distilled water, filter to obtain the filter residue, cook at 110°C for 15 minutes, and then pulverize for 20 minutes to obtain gluten powder; mix the gluten powder obtained above with the same quality rosin Pack into the fermenter, then add kiwi fruit juice of 3 times the total mass of the two in the fermenter, and then ferment naturally for 9 days under the condition that the temperature is 45°C and the relative air humidity is 80%, to obtain the fermentation product; Count, weigh 120 parts of natural asphalt and 20 parts of passion fruit pulp into a high-temperatu...

example 2

[0022]First, according to the mass ratio of 2:1, mix flour and distilled water and knead it into a dough, put the obtained dough into a water basin, add water to the basin until the dough is completely submerged, manually wash the dough, and wait until the distilled water in the basin becomes Change the water again when it is milky white, continue to wash the dough until the dough becomes too small to wash out the distilled water, filter the filter residue, cook at 100°C for 10 minutes, and then crush it for 15 minutes to obtain gluten powder; mix the gluten powder obtained above with the same quality rosin Put into the fermenter, then add kiwi fruit juice with 2 times the total mass of the two in the fermenter, at a temperature of 35°C, and a relative air humidity of 60% for natural fermentation for 7 days to obtain a fermented product; by weight Count, weigh 100 parts of natural asphalt and 15 parts of passion fruit pulp into a high-temperature reaction kettle, heat up to 200...

example 3

[0025] First, according to the mass ratio of 2:1, mix flour and distilled water and knead it into a dough, put the obtained dough into a water basin, add water to the basin until the dough is completely submerged, manually wash the dough, and wait until the distilled water in the basin becomes Change the water again when it is milky white, continue to wash the dough until the dough becomes too small to wash out the distilled water, filter to obtain the filter residue, cook at 105°C for 12 minutes, and then pulverize for 17 minutes to obtain gluten powder; mix the gluten powder obtained above with the same quality rosin Pack into the fermenter, then add kiwi fruit juice with 3 times the total mass of the two in the fermenter, at a temperature of 40 ° C, and a relative air humidity of 70% for natural fermentation for 8 days to obtain a fermentation product; by weight Count, weigh 110 parts of natural asphalt and 17 parts of passion fruit pulp and put them into a high-temperature ...

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Abstract

The invention relates to a method for preparing a water-resistant self-repairing bridge deck pavement material and belongs to the technical field of bridge deck pavement material preparation. Surface ribs serve as toughening filler, rosin and kiwi juice rich in active component are also used, natural asphalt is modified under the action of microorganisms, the number of active groups of asphalt and chemical binding force between foundation bases are increased, and accordingly the viscosity increasing and toughening effects are achieved; then by means of the combined action of stalactite serving as seed crystal, oil-producing algae and oil-producing microorganisms, the number of surface hydrophobic ester groups of stalactite is increased, water resistance of stalactite is extremely good, finally stalactite and the modified asphalt are compounded, and the bridge deck pavement material is obtained. The bridge deck pavement material prepared through the method is good in water resistance, the water absorbing rate is lower than 0.4%, low temperature resistance can reach -55-0 DEG C, low temperature resistance is good, cracking is not likely to happen, and the service life of a bridge deck is prolonged.

Description

technical field [0001] The invention relates to a preparation method of a water-resistant self-repairing bridge deck pavement material, which belongs to the technical field of bridge deck pavement preparation. Background technique [0002] Long-span bridges refer to bridges spanning large rivers, rivers and seas, urban viaducts, etc. The bridge deck is mostly composed of steel boxes with hollow structures, commonly known as steel box girders, and bridges with this structure are sometimes referred to as steel box bridges. Due to the large span, the up and down amplitude of the bridge deck itself is also large. For example, when the load is loaded, the design of the central area of ​​the bridge deck allows the amplitude to reach as much as 1 meter (that is, the bridge deck is allowed to sink by 1 meter); the heat capacity of steel is poor, and its surface temperature varies with the environment. The temperature varies with the temperature, and the hollow structure is not vent...

Claims

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Application Information

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IPC IPC(8): E01D21/00E01D19/08
CPCE01D21/00E01D19/083
Inventor 周丽花薛荣飞张晶
Owner CHANGZHOU DINGRI ENVIRONMENTAL PROTECTION TECH
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