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Preparation method of water-permeable concrete

A technology of permeable concrete and preparation steps, which is applied in the field of permeable concrete preparation, can solve the problems of lower concrete compressive strength and affect the use range of concrete, and achieve the effect of good water permeability and rich pore structure

Inactive Publication Date: 2017-10-13
CHANGZHOU SIYU ENVIRONMENTAL PROTECTION MATERIAL SCI & TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0006] The technical problem mainly solved by the present invention is aimed at the defect that the common permeable concrete mostly adopts porous structure to improve the water permeability of concrete, but the high porosity formed by the porous structure causes the compressive strength of concrete to decrease and affects the scope of use of concrete. A kind of preparation method of permeable concrete

Method used

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  • Preparation method of water-permeable concrete

Examples

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Effect test

example 1

[0026]Weigh the elephant ear sponge and put it into a jet mill to pulverize and screen out the elephant ear sponge particles with a particle size of 5 mm, rinse the obtained elephant ear sponge particles with water for 30 minutes, and then put the washed elephant ear sponge particles into the fumigation furnace , preheated to 170°C, then heated the tetraethyl orthosilicate to boiling, and passed the tetraethyl orthosilicate vapor generated after boiling into the tube furnace, fumigated the washed elephant ears with tetraethyl orthosilicate vapor Sponge granule 5h, obtain pretreatment elephant ear sponge granule; Pretreatment elephant ear sponge granule and mass concentration are 3g / L dopamine solution by mass ratio after being mixed in 1:8 and put into the ultrasonic vibrator, at power is 300W, frequency Under the condition of 50kHz, ultrasonic vibration treatment for 2h, filtration, and separation to obtain the filter residue; according to the mass ratio of 1:5, the filter res...

example 2

[0028] Weigh the honeycomb cotton and put it into a jet mill to pulverize and screen out the honeycomb cotton particles with a particle size of 3 mm, rinse the obtained honeycomb cotton particles with water for 20 minutes, then put the washed honeycomb cotton particles into a fumigation furnace, and preheat to 160°C, then heat the tetraethyl orthosilicate to boiling, and pass the tetraethyl orthosilicate vapor generated after boiling into the tube furnace, fumigate and wash the honeycomb sponge particles with the tetraethyl orthosilicate vapor for 3 hours, and obtain Pretreated honeycomb cotton particles; mix pretreated honeycomb cotton particles with a mass concentration of 3g / L dopamine solution at a mass ratio of 1:8, put them into an ultrasonic oscillator, and ultrasonically oscillate at a power of 200W and a frequency of 40kHz Treat for 1 hour, filter, and separate to obtain the filter residue; mix the filter residue and the sodium silicate solution with a mass fraction of...

example 3

[0030] Weigh the silk floss and put it into a jet mill to pulverize and screen out the silk floss particles with a particle size of 4 mm, rinse the obtained silk floss particles with water for 25 minutes, then put the rinsed silk floss particles into a fumigation furnace, preheat to 165°C, and then Heating tetraethyl orthosilicate to boiling, and passing the tetraethyl orthosilicate vapor generated after boiling into a tube furnace, and using tetraethyl orthosilicate vapor to fumigate and wash the silk floss particles for 4 hours to obtain pretreated silk floss particles; Mix the pretreated silk floss granules and dopamine solution with a mass concentration of 3g / L at a mass ratio of 1:8, put them into an ultrasonic oscillator, conduct ultrasonic oscillation treatment for 2 hours at a power of 250W, and a frequency of 45kHz, filter, and separate to obtain filter residue; according to the mass ratio of 1:5, the filter residue and the sodium silicate solution with a mass fraction...

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Abstract

The invention relates to the technical field of preparation of road surface construction materials and in particular relates to a preparation method of water-permeable concrete. The preparation method comprises the following steps: taking natural sponge as a template; after washing the natural sponge with water, carrying out fumigation on the natural sponge with tetraethyl orthosilicate steam and then mixing the natural sponge with a dopamine solution; filtering and separating to obtain filtering residues; mixing the filtering residues with a sodium silicate solution and regulating the pH (Potential of Hydrogen) with hydrochloric acid; carrying out oscillation reaction to obtain a reaction solution; heating the reaction solution to raise the temperature; after stirring the solution to react, filtering the solution; after carbonizing a filter cake, immersing the filter cake with hydrofluoric acid to obtain self-made water-permeable particles; then crushing bean curd and mildewing; then fermenting and filtering to obtain fermentation filtrate; mixing the self-made water-permeable particles and the fermentation filtrate; fermenting and filtering a mixture to obtain fermented filtering residues, namely modified self-made water-permeable particles; finally, mixing the modified self-made water-permeable particles, common Portland cement, fly ash and the like to obtain the water-permeable concrete. The water-permeable concrete prepared by the preparation method has extremely good water permeability and mechanical compressive property and can be widely applied to road surface construction.

Description

technical field [0001] The invention relates to the technical field of preparation of pavement construction materials, in particular to a preparation method of permeable concrete. Background technique [0002] More and more practice shows that the water entering into the pavement structure is the main cause of causing or accelerating the damage of pavement structure. In this regard, relevant experts have conducted a lot of research, trying to reduce or even eliminate the water damage of the road surface by rationally designing the drainage base material and the internal drainage system, so as to improve the performance of the road surface and prolong its service life. Permeable concrete is a new type of drainage base material developed in this environment. [0003] The academic circles have different names for permeable concrete, some are called porous concrete, macroporous concrete, and some are called sandless concrete, drainage concrete and so on. These names are relate...

Claims

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Application Information

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IPC IPC(8): C04B28/04C04B24/42C04B111/40
CPCC04B28/04C04B40/0039C04B2111/00284C04B2111/0075C04B2111/40C04B2201/50C04B18/08C04B24/18C04B24/42C04B16/08C04B24/122C04B22/122C04B18/18C04B38/08
Inventor 龙海燕薛焱璟林茂兰
Owner CHANGZHOU SIYU ENVIRONMENTAL PROTECTION MATERIAL SCI & TECH
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