CN111039602A - Novel water permeable material and preparation method thereof - Google Patents
Novel water permeable material and preparation method thereof Download PDFInfo
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- CN111039602A CN111039602A CN201811199508.3A CN201811199508A CN111039602A CN 111039602 A CN111039602 A CN 111039602A CN 201811199508 A CN201811199508 A CN 201811199508A CN 111039602 A CN111039602 A CN 111039602A
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- permeable material
- aggregate
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- C—CHEMISTRY; METALLURGY
- C04—CEMENTS; CONCRETE; ARTIFICIAL STONE; CERAMICS; REFRACTORIES
- C04B—LIME, MAGNESIA; SLAG; CEMENTS; COMPOSITIONS THEREOF, e.g. MORTARS, CONCRETE OR LIKE BUILDING MATERIALS; ARTIFICIAL STONE; CERAMICS; REFRACTORIES; TREATMENT OF NATURAL STONE
- C04B28/00—Compositions of mortars, concrete or artificial stone, containing inorganic binders or the reaction product of an inorganic and an organic binder, e.g. polycarboxylate cements
-
- C—CHEMISTRY; METALLURGY
- C04—CEMENTS; CONCRETE; ARTIFICIAL STONE; CERAMICS; REFRACTORIES
- C04B—LIME, MAGNESIA; SLAG; CEMENTS; COMPOSITIONS THEREOF, e.g. MORTARS, CONCRETE OR LIKE BUILDING MATERIALS; ARTIFICIAL STONE; CERAMICS; REFRACTORIES; TREATMENT OF NATURAL STONE
- C04B2111/00—Mortars, concrete or artificial stone or mixtures to prepare them, characterised by specific function, property or use
- C04B2111/00241—Physical properties of the materials not provided for elsewhere in C04B2111/00
- C04B2111/00284—Materials permeable to liquids
-
- C—CHEMISTRY; METALLURGY
- C04—CEMENTS; CONCRETE; ARTIFICIAL STONE; CERAMICS; REFRACTORIES
- C04B—LIME, MAGNESIA; SLAG; CEMENTS; COMPOSITIONS THEREOF, e.g. MORTARS, CONCRETE OR LIKE BUILDING MATERIALS; ARTIFICIAL STONE; CERAMICS; REFRACTORIES; TREATMENT OF NATURAL STONE
- C04B2111/00—Mortars, concrete or artificial stone or mixtures to prepare them, characterised by specific function, property or use
- C04B2111/00474—Uses not provided for elsewhere in C04B2111/00
- C04B2111/0075—Uses not provided for elsewhere in C04B2111/00 for road construction
-
- C—CHEMISTRY; METALLURGY
- C04—CEMENTS; CONCRETE; ARTIFICIAL STONE; CERAMICS; REFRACTORIES
- C04B—LIME, MAGNESIA; SLAG; CEMENTS; COMPOSITIONS THEREOF, e.g. MORTARS, CONCRETE OR LIKE BUILDING MATERIALS; ARTIFICIAL STONE; CERAMICS; REFRACTORIES; TREATMENT OF NATURAL STONE
- C04B2201/00—Mortars, concrete or artificial stone characterised by specific physical values
- C04B2201/50—Mortars, concrete or artificial stone characterised by specific physical values for the mechanical strength
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- Chemical & Material Sciences (AREA)
- Engineering & Computer Science (AREA)
- Ceramic Engineering (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Inorganic Chemistry (AREA)
- Materials Engineering (AREA)
- Structural Engineering (AREA)
- Organic Chemistry (AREA)
- Road Paving Structures (AREA)
Abstract
The invention belongs to the field of composite materials, and particularly relates to a water permeable material. The permeable material provided by the invention comprises aggregate and a binder coating the aggregate, wherein the binder comprises a first inorganic binder, a second inorganic binder, a first additive and a second additive; the first additive is silicate and/or phosphate; the second additive is a hydrophilic solid particulate. The permeable material provided by the invention has good fluidity before solidification, can be directly used for paving permeable ground, has high paving efficiency, can primarily filter rainwater when being used as a road surface, and can form a surface layer with obvious filtering effect on solid particles.
Description
Technical Field
The invention belongs to the field of composite materials, and particularly relates to a water permeable material.
Background
On the pavement or the lane in places such as park, square even road, for purposes such as antiskid, usually need to make the road surface can permeate water immediately, the road surface also need to possess certain compressive capacity simultaneously for the vehicle can not destroy the road surface when passing through, especially in wide places such as square, has higher requirement to the whole roughness of road surface. For the permeable ground, permeable bricks or permeable concrete are usually paved in the construction. The water permeable bricks are transported to the site from the factory after mass production and are paved manually. The road paving construction method is low in manual paving speed and low in efficiency, the flatness of the road surface is difficult to guarantee by splicing and paving among the water permeable bricks, the flatness of the road surface is not high, the strength of the road surface is inevitably influenced, vehicles are difficult to pass, otherwise, the bricks are easy to move, and the unevenness of the road surface is aggravated. Of course, there are other road paving construction methods, such as leveling the road surface by means of accurate mapping, or performing complex construction procedures such as multiple paving permeable layers and polishing, and finally paving permeable bricks, which inevitably consumes more manpower and material resources, resulting in high construction cost. The pervious concrete has the defects of poor scratch resistance of the surface layer, poor freeze-thaw resistance, fast color fading of the surface layer and the like.
The existing permeable roads are usually paved by permeable concrete roads or permeable bricks. The concrete road that permeates water all needs tamp plain soil earlier when mating formation, then lays the rubble permeable bed, and the concrete layer that permeates water is laid to the upper strata, then uses the road roller to roll and make level, has the colour surface course and need use the mill base to mix organic binder spraying to the concrete surface or will permeate water the concrete layer and mix pigment and make it have the colour to mix, and white cement is selected for use mostly for outstanding colour bright-colored surface course bonding cement this moment. And the brick scheme of laying permeates water, except that the gravel layer of concrete that permeates water and the concrete layer that permeates water still need the screed-coat just can lay the brick that permeates water, the brick that permeates water generally is used for occasions such as pavement and parking area.
However, the paving modes of the two roads are complex, the surface particles of the pervious concrete road are large, rainwater cannot be preliminarily filtered, and large pores are easy to block, so that the water permeability is influenced. The surface course construction needs the main equipment to support, and the energy consumes seriously and consuming time longer, need often maintain, the spraying protective layer for preventing the surface course from fading. The scheme of the water permeable brick can play a role in purifying rainwater and has the advantages of difficult blockage and the like. But the construction is comparatively complicated because the cushion layer is paved and the brick body is cut.
Therefore, how to develop a novel permeable material for paving permeable roads is a problem to be solved urgently by those skilled in the art.
Disclosure of Invention
The invention aims to overcome the defects of unstable water permeability or complicated construction of a permeable road in the prior art, develop a novel permeable road paving material and further provide a novel permeable material.
The above purpose of the invention is realized by the following technical scheme:
a permeable material, which comprises aggregate and a binder coating the aggregate,
the binder comprises a first inorganic binder, a second inorganic binder, a first additive and a second additive;
the first additive is silicate and/or phosphate;
the second additive is a hydrophilic solid particulate.
The first inorganic binder accounts for 1-3% of the weight of the aggregate;
the second inorganic adhesive accounts for 5-35% of the weight of the aggregate.
The hydrophilic solid particulate matter is one or more of dopamine, calcium carbonate, magnesium hydroxide, aluminum hydroxide, silicon dioxide, graphene oxide, artificial ceramsite and aluminum oxide; and/or the presence of a gas in the gas,
the silicate is one or more of sodium silicate, potassium silicate, aluminum silicate and barium silicate; and/or the presence of a gas in the gas,
the phosphate is one or more of sodium phosphate, potassium phosphate, aluminum phosphate and barium phosphate.
The particle size of the aggregate is 20-140 meshes.
The particle size of the hydrophilic solid particles is micron-sized or nano-sized.
The addition amount of the second additive is 3-15% of the weight of the aggregate.
The adding amount of the first additive is 1-5% of the weight of the aggregate.
Also comprises vinyl acetate-ethylene copolymer emulsion and/or acrylic emulsion.
The weight of the vinyl acetate-ethylene copolymer emulsion is 1-8% of the weight of the aggregate; and/or the presence of a gas in the gas,
the weight of the acrylic emulsion is 1-5% of the weight of the aggregate.
The first inorganic binder and/or the second inorganic binder is cement.
The aggregate also comprises a reinforcing agent, wherein the addition amount of the reinforcing agent is 0.03-0.1% of the weight of the aggregate, and the preferable reinforcing agent is hydroxypropyl methyl cellulose.
The aggregate also comprises an accelerating agent, wherein the addition amount of the accelerating agent is 0.5-2% of the weight of the aggregate, and the preferable accelerating agent is at least one of chloride (such as sodium chloride and calcium chloride), nitrate (such as sodium nitrate and calcium nitrate), nitrite (such as sodium nitrite and calcium nitrite) and carbonate (such as sodium carbonate and sodium bicarbonate).
The aggregate is hard particles.
The hard particles are one or more of silica sand, artificial quartz sand, precoated sand, reclaimed sand, tailing slag and ceramsite.
The silica sand is color silica sand and/or the artificial quartz sand is color artificial quartz sand.
The preparation method of the permeable material comprises the step of mixing the binding agent and the aggregate.
The mixing is to mix the aggregate with a first additive, a second additive and a first binder;
and continuously adding a second inorganic binder and mixing.
The mixing is to mix the aggregate, a first additive and a first binder;
then adding a second inorganic binder and a second additive, and mixing.
Further comprising the step of wetting the aggregate with an appropriate amount of water.
The coated sand described in the present invention can be selected from the coated sands described in chinese patent documents CN103028694A, CN104889313A, CN104588569A, CN1274626A and CN 1274625A.
The technical scheme of the invention has the following beneficial effects:
1. the permeable material provided by the invention comprises aggregate and a binder coating the aggregate, wherein the binder comprises a first inorganic binder, a second inorganic binder, a first additive and a second additive; the first additive is silicate and/or phosphate; the second additive is a hydrophilic solid particulate. The permeable material provided by the invention has good fluidity before solidification, can be directly used for paving permeable ground, and has high paving efficiency. In the prior art, the permeable road surface is mostly paved by large-particle permeable concrete, the road surface can be paved and leveled by a road roller, and the permeable material provided by the invention is used as a surface layer material, wherein the aggregate has good fluidity and is easy to compact and level, so that better flatness is obtained. When the permeable material provided by the invention is used for paving the on-site permeable road, a leveling layer is not required to be paved, and compared with the permeable brick pavement in the prior art, the permeable material has high construction efficiency and low cost. In addition, the prior art adopts a pervious concrete solution for site pavement, the aggregate particle size of the surface layer is about 3-10mm, although the pervious speed is ensured, the pores of the surface layer are large, so that the rainwater cannot be preliminarily filtered and purified, and dust and particle impurities easily enter to block the pores, thereby affecting the water permeability. The permeable material provided by the invention can primarily filter rainwater when being laid on a road for use as a road surface, and a surface layer formed by the permeable material can have a relatively obvious filtering effect on solid particles.
2. The permeable material provided by the invention has good fluidity and further improves the water permeability by optimizing the aggregate grain diameter and the binder, and the strength and the toughness of a cast-in-place road can be simultaneously ensured by paving the permeable material provided by the invention on the existing permeable ground.
Detailed Description
The technical solutions of the present invention will be described clearly and completely below, and it should be apparent that the described embodiments are some, but not all, embodiments of the present invention. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention. In addition, the technical features involved in the different embodiments of the present invention described below may be combined with each other as long as they do not conflict with each other.
Example 1
The embodiment provides a water permeable material, which comprises 100g of 20-mesh coated sand, 3g of sodium silicate compound, 2g of silica sand-coated cement, 0.06g of carbon black, 2g of acrylic emulsion, 20g of cement, 0.1g of hydroxypropyl methyl cellulose and 5g of micron-sized dopamine.
The embodiment also provides a preparation method of the water permeable material, which comprises the following specific steps:
mixing 100g of 20-mesh coated sand, 3g of sodium silicate compound, 2g of silica sand-coated cement (first inorganic binder), 0.06g of carbon black, 2g of acrylic emulsion, 5g of micron dopamine and a proper amount of water to obtain a first mixture;
the first mixture was mixed with 20g of cement (second inorganic binder) and 0.1g of hydroxypropylmethylcellulose.
Example 2
The embodiment provides a water permeable material, which comprises 13Kg of 100-mesh quartz sand, 130g of sodium silicate, 130g of acrylic emulsion, 4.94Kg of cement, 0.78g of hydroxypropyl methyl cellulose and 117g of micron-sized calcium carbonate.
Example 3
The embodiment provides a water permeable material, which comprises 15Kg of 140-mesh quartz sand, 75g of sodium silicate, 15g of cement (first binder) coating the silica sand, 75g of acrylic emulsion, 525g of cement (second binder), 1.35g of hydroxypropyl methyl cellulose and 160g of magnesium hydroxide.
The embodiment also provides a preparation method of the novel water permeable material, which comprises the following specific steps:
15Kg of 140 mesh quartz sand was wetted with water, mixed with 75g of sodium silicate, 15g of silica sand-coated cement (first binder), 75g of acrylic emulsion, and 1.35g of hydroxypropylmethylcellulose, and then added with 525g of cement (second binder), 160g of magnesium hydroxide, and an appropriate amount of water, and mixed.
Example 4
The embodiment provides a permeable material, which comprises 100g of 20-mesh coated sand, 3g of sodium silicate compound, 2g of silica sand-coated cement, 0.06g of carbon black, 2g of vinyl acetate-ethylene copolymer emulsion, 20g of cement, 0.1g of hydroxypropyl methyl cellulose and 8g of micron-sized magnesium hydroxide.
The preparation method of the permeable material provided by the invention comprises the following steps: mixing 100g of 20-mesh coated sand, 3g of sodium silicate compound, 2g of silica sand-coated cement (first inorganic binder), 0.06g of carbon black, 2g of vinyl acetate-ethylene copolymer emulsion, 8g of micron-sized magnesium hydroxide and a proper amount of water to obtain a first mixture;
the first mixture was mixed with 20g of cement (second inorganic binder) and 0.1g of hydroxypropylmethylcellulose.
Example 5
The embodiment provides a water permeable material, which comprises 13Kg of 100-mesh quartz sand, 130g of sodium silicate, 130g of acrylic emulsion, 4.94Kg of cement, 0.78g of hydroxypropyl methyl cellulose and 39g of nano-scale aluminum hydroxide. The specific preparation method of the permeable material provided by the embodiment is to wet quartz sand with water, add the rest materials, and add a proper amount of water and a water reducing agent to obtain the permeable material.
Example 6
The embodiment provides a water permeable material, which comprises 15Kg of 60-mesh colored silica sand, 75g of sodium silicate, 15g of silica sand-coated cement (first binder), 75g of acrylic emulsion, 3Kg of cement (second binder), 60g of hydroxypropyl methyl cellulose and 225g of micron-sized hydrophilic silica.
Example 7
The embodiment provides a water permeable material, which comprises 100g of 80-mesh coated sand, 3g of a sodium silicate compound, 2g of silica sand-coated cement, 0.06g of carbon black, 2g of vinyl acetate-ethylene copolymer emulsion, 20g of cement, 0.1g of hydroxypropyl methyl cellulose and 8g of micron-sized graphene oxide.
The preparation method of the permeable material provided by the invention comprises the following steps: mixing 100g of 20-mesh coated sand, 3g of a sodium silicate compound, 2g of silica sand-coated cement (a first inorganic binder), 0.06g of carbon black, 2g of vinyl acetate-ethylene copolymer emulsion, 8g of micron-sized graphene oxide and a proper amount of water to obtain a first mixture;
the first mixture was mixed with 20g of cement (second inorganic binder) and 0.1g of hydroxypropylmethylcellulose.
Example 8
The embodiment provides a water permeable material, which comprises 13Kg of 100-mesh quartz sand, 130g of sodium silicate, 130g of acrylic emulsion, 4.94Kg of cement, 0.78g of hydroxypropyl methyl cellulose and 39g of nano-scale artificial ceramsite.
The invention also provides a preparation method of the permeable material, which comprises the following steps:
and wetting the quartz sand with water, adding the rest materials, and adding a proper amount of water and a water reducing agent to obtain the water permeable material.
Example 9
The embodiment provides a water permeable material, which comprises 15Kg of black-dyed 20-mesh quartz sand, 75g of sodium silicate, 15g of silica sand-coated cement (first binder), 75g of acrylic emulsion, 525g of cement (second binder), 1.35g of hydroxypropyl methyl cellulose and 225g of nano-scale artificial ceramsite.
Example 10
The embodiment provides a water permeable material, which comprises 100g of 80-mesh coated sand, 3g of sodium silicate compound, 2g of silica sand-coated cement, 0.06g of carbon black, 2g of vinyl acetate-ethylene copolymer emulsion, 20g of cement, 0.1g of hydroxypropyl methyl cellulose and 8g of micron-grade alumina.
The preparation method of the permeable material provided by the invention comprises the following steps: mixing 100g of 80-mesh coated sand, 3g of a sodium silicate compound, 2g of silica sand-coated cement (a first inorganic binder), 0.06g of carbon black, 2g of a vinyl acetate-ethylene copolymer emulsion, 8g of micron-sized alumina and a proper amount of water to obtain a first mixture;
the first mixture was mixed with 20g of cement (second inorganic binder) and 0.1g of hydroxypropylmethylcellulose.
Example 11
The embodiment provides a water permeable material, which comprises 15Kg of 60-mesh tailing slag, 75g of sodium silicate, 15g of silica sand-coated cement (first binder), 75g of acrylic emulsion, 525g of cement (second binder), 1.35g of hydroxypropyl methyl cellulose and 225g of a mixture of micron-sized dopamine and graphene oxide.
Examples of the experiments
And (3) testing the compressive strength:
125g of the surface layer paving materials provided by each example and comparative example are taken and made into cylindrical samples to be tested with the diameter of 50mm and the height of 40mm by using a mould. And demolding after natural curing for 24h, and carrying out strength test after watering and curing for 14 d. And (3) placing the sample to be measured into a servo pressure tester, controlling the stress at a speed of 0.4-0.6 Mpa/s, and measuring the strength. The test results were averaged over 5 samples from the same batch.
The compressive strength is calculated according to the following formula:
in the formula:
rc-compressive strength in Mega pascals (MPa);
p-maximum load in newtons (N);
a-area of the pad on the sample or the area of the sample under pressure, in square millimeters (mm)2)。
Testing the water permeability and water filtration performance:
firstly, preparing a test sample, paving a permeable concrete layer, then paving the novel permeable materials provided by each embodiment and comparative example on the surface to form a surface layer, rolling to make the surface layer compact and flat, naturally curing for 14 days, and watering at times during curing to obtain a sample with the surface layer thickness of 8 mm. The natural curing period must not be trampled or soaked. After curing, the sample was cut into 150 × 80mm samples to be tested. And (3) measuring the water permeability rate, the water filtration rate and the water permeability rate attenuation rate of the sample to be measured by adopting a test method in the JG/T376-2012 Standard of Sand-based water permeable brick.
TABLE 1 test results
It should be understood that the above examples are only for clarity of illustration and are not intended to limit the embodiments. Other variations and modifications will be apparent to persons skilled in the art in light of the above description. And are neither required nor exhaustive of all embodiments. And obvious variations or modifications therefrom are intended to be within the scope of the invention.
Claims (19)
1. A permeable material comprises aggregate and a binder coating the aggregate, and is characterized in that,
the binder comprises a first inorganic binder, a second inorganic binder, a first additive and a second additive;
the first additive is silicate and/or phosphate;
the second additive is a hydrophilic solid particulate.
2. The water permeable material of claim 1,
the first inorganic binder accounts for 1-3% of the weight of the aggregate;
the second inorganic adhesive accounts for 5-35% of the weight of the aggregate.
3. The water-permeable material of claim 1 or 2, wherein the hydrophilic solid particulate matter is one or more of dopamine, calcium carbonate, magnesium hydroxide, aluminum hydroxide, silica, graphene oxide, artificial ceramsite and alumina; and/or the presence of a gas in the gas,
the silicate is one or more of sodium silicate, potassium silicate, aluminum silicate and barium silicate; and/or the presence of a gas in the gas,
the phosphate is one or more of sodium phosphate, potassium phosphate, aluminum phosphate and barium phosphate.
4. The water-permeable material according to any one of claims 1 to 3, wherein the aggregate has a particle size of 20 to 140 mesh.
5. The water permeable material of any one of claims 1-4, wherein the hydrophilic solid particles have a particle size on the micrometer or nanometer scale.
6. The permeable material of any one of claims 1-5, wherein the second additive is added in an amount of 3-15% by weight of the aggregate.
7. The permeable material of any one of claims 1-6, wherein the first additive is added in an amount of 1-5% by weight of the aggregate.
8. The water permeable material of any one of claims 1-7, further comprising a vinyl acetate-ethylene copolymer emulsion and/or an acrylic emulsion.
9. The water-permeable material of claim 8, wherein the weight of the vinyl acetate-ethylene copolymer emulsion is 1-8% of the weight of the aggregate; and/or the presence of a gas in the gas,
the weight of the acrylic emulsion is 1-5% of the weight of the aggregate.
10. The water permeable material of any one of claims 1-9, wherein the first inorganic binder and/or the second inorganic binder is cement.
11. The water-permeable material according to any one of claims 1 to 10, further comprising a reinforcing agent, wherein the reinforcing agent is added in an amount of 0.03 to 0.1% by weight based on the weight of the aggregate.
12. The permeable material of any one of claims 1-11, further comprising an accelerator added in an amount of 0.5-2% by weight of the aggregate.
13. The water permeable material of any one of claims 1-12, wherein the aggregate is hard particulate matter.
14. The water-permeable material of claim 13, wherein the hard particulate matter is one or more of silica sand, artificial quartz sand, coated sand, reclaimed sand, tailing slag and ceramsite.
15. The water permeable material of claim 13, wherein the silica sand is colored silica sand and/or the synthetic quartz sand is colored synthetic quartz sand.
16. A method of making a water permeable material according to any one of claims 1 to 15, comprising mixing a binder with the aggregate.
17. The method of claim 16, wherein the mixing is performed by mixing the aggregate with the first additive, the second additive, and the first binder;
and continuously adding a second inorganic binder and mixing.
18. The method of claim 16, wherein the mixing is performed by mixing the aggregate with the first additive and the first binder;
then adding a second inorganic binder and a second additive, and mixing.
19. A method of making as claimed in any one of claims 16 to 19 further including the step of wetting the aggregate with an appropriate amount of water.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
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| CN201811199508.3A CN111039602A (en) | 2018-10-12 | 2018-10-12 | Novel water permeable material and preparation method thereof |
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| CN201811199508.3A CN111039602A (en) | 2018-10-12 | 2018-10-12 | Novel water permeable material and preparation method thereof |
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| CN112125634A (en) * | 2020-11-25 | 2020-12-25 | 北京仁创科技集团有限公司 | Coral sand permeable material and preparation method thereof |
| CN113845346A (en) * | 2021-10-28 | 2021-12-28 | 北华大学 | High-water-permeability concrete combined with acrylic acid and preparation method thereof |
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| CN103103904B (en) * | 2006-09-30 | 2015-11-04 | 北京仁创科技集团有限公司 | Composite water permeable brick and the compound for making composite water permeable brick top layer |
| CN105386379A (en) * | 2015-10-20 | 2016-03-09 | 山东大学 | Plugging-resistant freeze-resistant pervious concrete pavement brick and manufacturing method |
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| JP2005042439A (en) * | 2003-07-23 | 2005-02-17 | Chugai Shoko Kk | Surface covering aggregate for permeable pavement utilizing tile waste material, permeable paving material and paving body utilizing permeable paving material and these manufacturing method |
| CN103103904B (en) * | 2006-09-30 | 2015-11-04 | 北京仁创科技集团有限公司 | Composite water permeable brick and the compound for making composite water permeable brick top layer |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN112125634A (en) * | 2020-11-25 | 2020-12-25 | 北京仁创科技集团有限公司 | Coral sand permeable material and preparation method thereof |
| CN113845346A (en) * | 2021-10-28 | 2021-12-28 | 北华大学 | High-water-permeability concrete combined with acrylic acid and preparation method thereof |
| CN113845346B (en) * | 2021-10-28 | 2022-12-23 | 北华大学 | High-water-permeability concrete combined with acrylic acid and preparation method thereof |
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Application publication date: 20200421 |
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