Environment-friendly water-permeable concrete and preparation method thereof

A technology of water permeability and concrete, which is applied in the field of concrete, can solve the problems that the compressive performance and water permeability of permeable concrete cannot be improved simultaneously, and restrict development, and achieve low preparation costs, improved mechanical properties, and good freeze-thaw resistance.

Active Publication Date: 2020-05-08
威海冠宏商品混凝土有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The compressive performance and water permeability of the permeable concrete disclosed in this invention usually cannot be improved simultaneously, which limits its further development

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0035] An environment-friendly permeable concrete is characterized in that it comprises the following raw materials in parts by weight: 30 parts of ordinary Portland cement, 3 parts of modified nano silicon powder, 1 part of ammonium glycyrrhizinate, 1 part of ferric ammonium edetate parts, 50 parts of crushed granite, 15 parts of volcanic rock, 10 parts of rectorite, 10 parts of nano-zinc oxide coated reinforcing fiber, 20 parts of water; the particle size of the crushed granite is 5mm; the particle size of the volcanic rock is 50 mesh, and the particle size of the rectorite is 100 mesh.

[0036] The reinforcing fiber is formed by mixing nano-boron fiber and mullite fiber at a mass ratio of 1:3.

[0037]The preparation method of described modified nano silicon powder, comprises the steps:

[0038] Step D1, adding amino-modified dextran, glycidic acid, and sodium hydroxide to tetrahydrofuran, stirring and reacting at 70°C for 3 hours, and then adjusting the pH to 7 with hydro...

Embodiment 2

[0046] An environment-friendly permeable concrete, characterized in that it comprises the following raw materials in parts by weight: 32 parts of slag Portland cement, 4 parts of modified nano silicon powder, 1.2 parts of ammonium glycyrrhizinate, 1.2 parts of ferric ammonium edetate part, 53 parts of floating beads, 16 parts of volcanic stones, 12 parts of rectorite, 12 parts of nano-zinc oxide coated reinforcing fibers, 23 parts of water; the particle size of the floating beads is 6mm; the particle size of the volcanic stones is 80 mesh, the particle size of the rectorite is 130 mesh.

[0047] The reinforcing fiber is formed by mixing nano-boron fiber and mullite fiber at a mass ratio of 1:3.5.

[0048] The preparation method of described modified nano silicon powder, comprises the steps:

[0049] Step D1. Add amino-modified dextran, glycidic acid, and sodium carbonate to N,N-dimethylformamide, stir and react at 72°C for 3.5 hours, and then adjust the pH to 7 with hydrochlo...

Embodiment 3

[0057] An environment-friendly permeable concrete, characterized in that it comprises the following raw materials in parts by weight: 35 parts of pozzolanic Portland cement, 4.5 parts of modified nano-silica fume, 1.5 parts of ammonium glycyrrhizinate, ammonium iron edetate 1.5 parts, 55 parts of corundum, 20 parts of volcanic rock, 15 parts of rectorite, 15 parts of nano-zinc oxide coated reinforcing fibers, 25 parts of water; the particle diameter of the emery is 7mm; the particle diameter of the volcanic rock is 120 mesh, the particle size of the rectorite is 200 mesh; the reinforcing fiber is formed by mixing nano-boron fiber and mullite fiber at a mass ratio of 1:4.

[0058] The preparation method of described modified nano silicon powder, comprises the steps:

[0059] Step D1. Add amino-modified dextran, glycidic acid, and potassium hydroxide to N,N-dimethylacetamide, stir and react at 75°C for 4 hours, and then adjust the pH to 7 with hydrochloric acid to obtain interme...

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Abstract

The invention discloses environment-friendly water permeable concrete. The concrete is characterized by comprising the following raw materials in parts by weight: 30-40 parts of cement, 3-6 parts of modified nano silicon powder, 1-2 parts of ammonium glycyrrhizinate, 1-2 parts of ethylenediamine tetraacetic acid ferric ammonium salt, 50-60 parts of coarse aggregate, 15-25 parts of vesuvianite, 10-20 parts of rectorite, 10-20 parts of nano zinc oxide coated reinforcing fibers and 20-30 parts of water. The invention also discloses a preparation method of the environment-friendly water-permeableconcrete. The environment-friendly water-permeable concrete disclosed by the invention has the advantages of good water permeability and fatigue resistance, high compressive strength, good freeze-thawresistance, wear resistance, and safety and environmental protection in use.

Description

technical field [0001] The invention relates to the technical field of concrete, in particular to an environment-friendly permeable concrete and a preparation method thereof. Background technique [0002] In recent years, with the rapid development of my country's economy and the accelerating pace of urbanization and construction, the original natural vegetation and bare soil are gradually hardened and covered by water-blocking materials such as buildings and concrete, forming an ecological "artificial desert". Urban roads, sidewalks, squares and other urban facilities are basically dense and impermeable, whether in design or construction, which brings environmental impacts such as heat island effect and groundwater level drop to the city. Due to the imperviousness of urban roads and the lack of drainage system functions, urban waterlogging phenomenon is increasing day by day, leading to traffic paralysis in severe cases, life and property safety is threatened, and the munic...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C04B28/04C04B28/02C04B28/08C04B28/18C04B38/02C04B20/10C04B20/02
CPCC04B20/023C04B20/1066C04B28/021C04B28/04C04B28/08C04B28/18C04B2111/00284C04B2201/50C04B14/062C04B24/04C04B24/121C04B14/048C04B14/14C04B14/04C04B14/4643C04B14/38C04B38/02C04B18/08C04B14/324
Inventor 张礼国
Owner 威海冠宏商品混凝土有限公司
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