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Low-alkali plant-growing concrete for protection and preparation method of low-alkali plant-growing concrete

A technology of planting concrete and concrete, which is applied in the field of concrete, can solve problems such as conditions where the strength is difficult to meet engineering applications, environmental damage, etc., and achieve the effects of compact structure, prolonging service life, and improving alkaline environment

Active Publication Date: 2022-07-15
盐城市福奇混凝土有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, when the porosity of this concrete can meet the requirements of plant growth, its strength is often difficult to meet the conditions for engineering applications, and the contact between concrete and water, the release of alkali in water will cause damage to the environment

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0026] Step 1: Amino acid stripping and preparation of modified molybdenum disulfide nanosheets:

[0027] Take 30g of glycine and 200ml of deionized water, mix well, add 2.5g of molybdenum disulfide powder, stir at a speed of 470r / min for 23h, ultrasonicate for 12h, centrifuge at a speed of 1450r / min for 65min, wash, and dry to obtain amino acid modified amino acids. Sexual molybdenum disulfide powder.

[0028] Step 2: Preparation of Hyperbranched Epoxy Resin:

[0029] Take 6g of trimethylolpropane triglycidyl ether and 17g of 1,6-naphthalenediol, heat up to 95-105°C, react for 13min, add 0.4g of tetrabutylammonium bromide, heat up to 130°C, react for 3h, heat up to 150 ° C, add 0.3 g of ethyl triphenyl phosphine bromide, react for 2 h, cool down to 57 ° C, add 220 g of epoxy resin, stir evenly for 3 h to obtain hyperbranched epoxy resin.

[0030] Step 3: Preparation of amino acid modified molybdenum disulfide / epoxy resin:

[0031] Take 15ml of N-methylpyrrolidone and 3g of...

Embodiment 2

[0036] Step 1: Amino acid stripping and preparation of modified molybdenum disulfide nanosheets:

[0037] Take 30g of glycine and 200ml of deionized water, mix well, add 2.5g of molybdenum disulfide powder, stir at a speed of 450r / min for 22h, ultrasonicate for 11h, centrifuge at a speed of 1400r / min for 60min, wash, and dry to obtain amino acid modified amino acids. Sexual molybdenum disulfide powder.

[0038] Step 2: Preparation of Hyperbranched Epoxy Resin:

[0039] Take 6g of trimethylolpropane triglycidyl ether and 17g of 1,6-naphthalenediol, heat up to 95°C, react for 10min, add 0.4g of tetrabutylammonium bromide, heat up to 125°C, react for 2.5h, heat up to 145°C ℃, add 0.3 g of ethyl triphenylphosphine bromide, react for 1.5 h, cool down to 55 ℃, add 220 g of epoxy resin, stir evenly for 2.5 h, to obtain hyperbranched epoxy resin.

[0040] Step 3: Preparation of amino acid modified molybdenum disulfide / epoxy resin:

[0041] Take 15ml of N-methylpyrrolidone and 3g of...

Embodiment 3

[0046] Step 1: Amino acid stripping and preparation of modified molybdenum disulfide nanosheets:

[0047] Take 30g of glycine and 200ml of deionized water, mix well, add 2.5g of molybdenum disulfide powder, stir at a speed of 500r / min for 24h, ultrasonicate for 13h, centrifuge at a speed of 1500r / min for 70min, wash, and dry to obtain amino acid modified amino acids. Sexual molybdenum disulfide powder.

[0048] Step 2: Preparation of Hyperbranched Epoxy Resin:

[0049] Take 6g of trimethylolpropane triglycidyl ether and 17g of 1,6-naphthalenediol, heat up to 105°C, react for 15min, add 0.4g of tetrabutylammonium bromide, heat up to 135°C, react for 3.5h, heat up to 155°C ℃, add 0.3g of ethyl triphenylphosphine bromide, react for 2.5h, cool down to 60℃, add 220g of epoxy resin, stir evenly for 3.5h to obtain hyperbranched epoxy resin.

[0050] Step 3: Preparation of amino acid modified molybdenum disulfide / epoxy resin:

[0051] Take 15ml of N-methylpyrrolidone and 3g of amin...

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Abstract

The invention discloses low-alkali plant-growing concrete for protection and a preparation method of the low-alkali plant-growing concrete. Portland cement, broken stone, fly ash, silica fume, slag, rice husk charcoal, water, a PCA polycarboxylate-type high-performance water reducer, amino-modified graphene oxide-carboxymethyl cellulose and amino acid modified molybdenum disulfide / epoxy resin are taken and evenly stirred, concrete is obtained and cured, an oxalic acid solution is sprayed to the surface of a concrete test piece, alkali reduction treatment is conducted, and the concrete is obtained. Therefore, the low-alkali vegetation concrete for protection is prepared. By controlling the particle size of the added gravel and the volume density of each component, the concrete which has excellent compressive property, water permeability and low alkali and is suitable for plant growth is obtained.

Description

technical field [0001] The invention relates to the technical field of concrete, in particular to a low-alkali planted concrete for protection and a preparation method thereof. Background technique [0002] With the rapid development of my country's economy and the continuous improvement of the level of urbanization, people are more and more aware of the importance of environmental protection, and it is required that the slope protection project should not only consider its stability but also have a greening function. Pervious concrete is a porous structure with certain continuous voids that provide the possibility for plants to grow. The plant-type permeable concrete developed on this basis is made of permeable concrete by reducing alkalinity, injecting matrix, laying foreign soil, sowing plants and post-maintenance. However, when the porosity of this kind of concrete can meet the requirements of plant growth, its strength is often difficult to meet the conditions of engin...

Claims

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Application Information

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IPC IPC(8): C04B28/04C04B41/50
CPCC04B28/04C04B41/5016C04B2201/50C04B2111/00284C04B2111/00758C04B2111/00732C04B14/04C04B18/08C04B18/146C04B18/141C04B18/101C04B2103/302C04B14/024C04B24/383C04B24/123C04B24/281C04B14/36Y02W30/91
Inventor 金生林宋波王绪洲倪荣凤纪小敏陈迪李云杰
Owner 盐城市福奇混凝土有限公司
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