CN104291742A - Coir concrete and preparation method thereof - Google Patents

Abstract

Coir concrete is prepared from the following raw materials in parts by weight: 2-3 parts of nonylphenol polyoxyethylene ether, 20-24 parts of coir, 50-70 parts of expanded perlite, 3-4 parts of urea, 20-30 parts of montmorillonite, 5-6 parts of citric acid, 270-300 parts of sand, 150-160 parts of cement, 470-500 parts of gravel, proper amount of water, and 20-30 parts of an auxiliary agent. The mortar is good in thermal insulation performance, is increased in cracking resistance by adding coir, is increased in compactness, anti-penetrability performance and impact resistance by adding montmorillonite, is increased in tensile property, rupture resistance, compression-resistant strength and compactness by using the auxiliary agent, is capable of radiating fragrance, preventing moth and preventing corrosion, is enhanced in rust resistance, waterproofness and anti-penetrability performance, and is good in water-reducing property, plasticity and pumping effect.

Description

A kind of coir fibre concrete and preparation method thereof

Technical field

The invention belongs to building material field, particularly a kind of coir fibre concrete and preparation method thereof.

Background technology

Concrete has abundant raw material, cheap, the simple feature of production technique, thus makes its consumption increasing.Simultaneously also to have ultimate compression strength high for concrete, good endurance, the features such as strength grade wide ranges.These features make its use range very extensive, and not only using in various civil engineering work, is exactly shipbuilding, mechanical industry, the exploitation of ocean, geothermal engineering etc., and concrete is also important material.

Along with the development of component materials of concrete, people are not only confined to ultimate compression strength to concrete performance requriements, but on the basis basing oneself upon intensity, more focus on concrete weather resistance, deformation performance, fire-and explosion-proof performance, water-impervious performance, toughness, erosion resistance, heat retaining property, health environment-friendly and to reduce costs etc. the balance and coordination of overall target.The requirement of concrete property indices is than clearer and more definite, refinement in the past and concrete.Meanwhile, the lifting of Architectural Equipment level, the continuing to bring out and promoting of novel construction process, concrete technology is adapted to different designs, construction and service requirements, develops very fast.

Concrete also be unable to do without the raw-material development of the reinforcement of concrete, be unable to do without the development and change of concrete engineer applied object.Therefore, develop that performance is more excellent, function is more powerful, more adapt to novel process, the concrete of new building object just seems particularly important.

Summary of the invention

The object of the present invention is to provide a kind of coir fibre concrete and preparation method thereof, this concrete heat-insulating performance is good, and resistance to cleavage is good, also has good density, anti-permeability performance, shock resistance.

Technical scheme of the present invention is as follows:

A kind of coir fibre concrete, is characterized in that being made up of the raw material of following weight part: polyoxyethylene nonylphenol ether 2-3, coir fibre 20-24, pearlstone 50-70, urea 3-4, montmorillonite 2 0-30, citric acid 5-6, sand 270-300, cement 150-160, stone 470-500, water are appropriate, auxiliary agent 20-30;

Described auxiliary agent is made up of the raw material of following weight part: epoxy acrylate 2-3, methyl acrylate 2-3, tetramethylolmethane 1-2, vinyl cyanide 2-3, allyl oenanthate 2-3, ethyl propenoate 1-2, mandarin oil 0.4-0.6, benzotriazole 1-2, trimeric cyanamide 1-2, 12-hydroxy lithium stearate 1-2, steel fiber 4-6, active calcium silicate 4-5, Prunus amygdalus oil 1-1.7, triethylene tetramine 0.2-0.3, perfluoro octyl sulfonic acid sodium 0.6-0.9, sodium malate 0.5-0.7, coconut oil diethanol amide 0.5-0.8, ammonium persulphate 0.1-0.2, Potassium Persulphate 0.1-0.2, water 15-18, , preparation method is: by water, epoxy acrylate, methyl acrylate, tetramethylolmethane, vinyl cyanide, allyl oenanthate, perfluoro octyl sulfonic acid sodium, sodium malate, coconut oil diethanol amide, benzotriazole, steel fiber mixing, be heated to 70-80 DEG C, add ammonium persulphate stirring reaction 20-30 minute, mix with other remaining components again, be heated to 80-90 DEG C, stirring reaction 40-50 minute, to obtain final product.

The concrete preparation method of described coir fibre, is characterized in that comprising the following steps:

(1) montmorillonite is ground to form 100-130 order particle, mix with polyoxyethylene nonylphenol ether, coir fibre, urea, citric acid, water, stir, obtain mixed serum;

(2) pearlstone, sand, cement, stone are mixed, the mixed serum obtained with (1) step and other remaining components mix, and stirring reaction 8-12 minute, then pours into a mould, and vibrates;

(3) in the wet environment of 5-28 DEG C, carry out maintenance 7-9 days after building, to obtain final product.

Beneficial effect of the present invention

Concrete heat-insulating performance of the present invention is good, by adding coir fibre, adds concrete resistance to cleavage, by adding montmorillonite, adds concrete density, anti-permeability performance, shock resistance; By making used additives, add concrete tension, anti-folding, ultimate compression strength and density, can be scentetd, mothproof protection against corrosion, enhances antirust, waterproof, barrier performance, water reducing ability, plasticity-and can pumping effective.

Embodiment

A kind of coir fibre concrete, is made up of the raw material of following weight part (kilogram): polyoxyethylene nonylphenol ether 2.5, coir fibre 22, pearlstone 60, urea 3.5, montmorillonite 25, citric acid 5.5, sand 280, cement 155, stone 480, water are appropriate, auxiliary agent 25;

Described auxiliary agent is made up of the raw material of following weight part (kilogram): epoxy acrylate 2.5, methyl acrylate 2.5, tetramethylolmethane 1.5, vinyl cyanide 2.5, allyl oenanthate 2.5, ethyl propenoate 1.5, mandarin oil 0.5, benzotriazole 1.5, trimeric cyanamide 1.5, 12-hydroxy lithium stearate 1.5, steel fiber 5, active calcium silicate 4.5, Prunus amygdalus oil 1.4, triethylene tetramine 0.2, perfluoro octyl sulfonic acid sodium 0.8, sodium malate 0.6, coconut oil diethanol amide 0.6, ammonium persulphate 0.2, Potassium Persulphate 0.2, water 16, , preparation method is: by water, epoxy acrylate, methyl acrylate, tetramethylolmethane, vinyl cyanide, allyl oenanthate, perfluoro octyl sulfonic acid sodium, sodium malate, coconut oil diethanol amide, benzotriazole, steel fiber mixing, be heated to 75 DEG C, add ammonium persulphate stirring reaction 25 minutes, mix with other remaining components again, be heated to 85 DEG C, stirring reaction 45 minutes, to obtain final product.

The concrete preparation method of described coir fibre, comprises the following steps:

(1) montmorillonite is ground to form 110 order particles, mix with polyoxyethylene nonylphenol ether, coir fibre, urea, citric acid, water, stir, obtain mixed serum;

(2) pearlstone, sand, cement, stone are mixed, the mixed serum obtained with (1) step and other remaining components mix, and stirring reaction 10 minutes, then pours into a mould, vibrate;

(3) in the wet environment of 5-12 DEG C, carry out maintenance 9 days after building, to obtain final product.

Experimental data:

The strength grade of concrete of this embodiment is C30, and the slump is 17cm, ultimate compression strength 38.9MPa, folding strength 16.8MPa.

Claims (2)

1. a coir fibre concrete, is characterized in that being made up of the raw material of following weight part: polyoxyethylene nonylphenol ether 2-3, coir fibre 20-24, pearlstone 50-70, urea 3-4, montmorillonite 2 0-30, citric acid 5-6, sand 270-300, cement 150-160, stone 470-500, water are appropriate, auxiliary agent 20-30;

Described auxiliary agent is made up of the raw material of following weight part: epoxy acrylate 2-3, methyl acrylate 2-3, tetramethylolmethane 1-2, vinyl cyanide 2-3, allyl oenanthate 2-3, ethyl propenoate 1-2, mandarin oil 0.4-0.6, benzotriazole 1-2, trimeric cyanamide 1-2, 12-hydroxy lithium stearate 1-2, steel fiber 4-6, active calcium silicate 4-5, Prunus amygdalus oil 1-1.7, triethylene tetramine 0.2-0.3, perfluoro octyl sulfonic acid sodium 0.6-0.9, sodium malate 0.5-0.7, coconut oil diethanol amide 0.5-0.8, ammonium persulphate 0.1-0.2, Potassium Persulphate 0.1-0.2, water 15-18, , preparation method is: by water, epoxy acrylate, methyl acrylate, tetramethylolmethane, vinyl cyanide, allyl oenanthate, perfluoro octyl sulfonic acid sodium, sodium malate, coconut oil diethanol amide, benzotriazole, steel fiber mixing, be heated to 70-80 DEG C, add ammonium persulphate stirring reaction 20-30 minute, mix with other remaining components again, be heated to 80-90 DEG C, stirring reaction 40-50 minute, to obtain final product.

2. the concrete preparation method of coir fibre according to claim 1, is characterized in that comprising the following steps:

(1) montmorillonite is ground to form 100-130 order particle, mix with polyoxyethylene nonylphenol ether, coir fibre, urea, citric acid, water, stir, obtain mixed serum;

(2) pearlstone, sand, cement, stone are mixed, the mixed serum obtained with (1) step and other remaining components mix, and stirring reaction 8-12 minute, then pours into a mould, and vibrates;

(3) in the wet environment of 5-28 DEG C, carry out maintenance 7-9 days after building, to obtain final product.