KR101573028B1 - Packing method using a lightweight cellular concrete permeability good - Google Patents
Packing method using a lightweight cellular concrete permeability good Download PDFInfo
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- KR101573028B1 KR101573028B1 KR1020150060038A KR20150060038A KR101573028B1 KR 101573028 B1 KR101573028 B1 KR 101573028B1 KR 1020150060038 A KR1020150060038 A KR 1020150060038A KR 20150060038 A KR20150060038 A KR 20150060038A KR 101573028 B1 KR101573028 B1 KR 101573028B1
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- E—FIXED CONSTRUCTIONS
- E01—CONSTRUCTION OF ROADS, RAILWAYS, OR BRIDGES
- E01C—CONSTRUCTION OF, OR SURFACES FOR, ROADS, SPORTS GROUNDS, OR THE LIKE; MACHINES OR AUXILIARY TOOLS FOR CONSTRUCTION OR REPAIR
- E01C15/00—Pavings specially adapted for footpaths, sidewalks or cycle tracks
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- E—FIXED CONSTRUCTIONS
- E01—CONSTRUCTION OF ROADS, RAILWAYS, OR BRIDGES
- E01C—CONSTRUCTION OF, OR SURFACES FOR, ROADS, SPORTS GROUNDS, OR THE LIKE; MACHINES OR AUXILIARY TOOLS FOR CONSTRUCTION OR REPAIR
- E01C7/00—Coherent pavings made in situ
- E01C7/08—Coherent pavings made in situ made of road-metal and binders
- E01C7/10—Coherent pavings made in situ made of road-metal and binders of road-metal and cement or like binders
- E01C7/14—Concrete paving
- E01C7/142—Mixtures or their components, e.g. aggregate
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Abstract
The present invention relates to a method of packaging an Indian or bicycle road using lightweight foamed concrete so as to have a packaging surface having a sectional structure composed of a ground layer (100), a lightweight foamed concrete layer (200) and a finish layer (300) ; A compaction step for assuring that the ground is maintained at a uniform horizontal level; A mesh laying step of laying a mesh fabric woven with a polypropylene fiber impregnated with glass fiber on the upper surface of the ground; Forming a lightweight foamed concrete layer by spraying a lightweight foamed concrete composition onto the laid mesh; And a finishing layer forming step of finishing an open cell type elastic chip or an elastic block when the lightweight foamed concrete layer is cured, wherein the lightweight foamed concrete composition constituting the lightweight foamed concrete layer comprises: 30 to 50 parts by weight of sodium lauryl sulfate, 5-10 parts by weight of meta-kaolin, 5-10 parts by weight of sodium aluminate, 15 to 25 parts by weight of C 12 A 7 , 5-10 parts by weight of butyl acetate, 5-10 parts by weight of a latex emulsion, 15-30 parts by weight of a first mixture of a copolymer vinyl acetate and ethylene in a weight ratio of 3: 1, 20-30 parts by weight of a Solaeit basalt powder having a particle size of 0.1-0.2 mm The present invention also provides a packaging method using lightweight foamed concrete excellent in water permeability.
Description
The present invention relates to a pavement method using lightweight foamed concrete having excellent water permeability, and more particularly, to a pavement method using lightweight foamed concrete having excellent water permeability, And a packing method.
Typically, asphalt or cement concrete is packed for road construction in parks, promenades, and apartments.
Asphalt or cement concrete has a relatively high strength and has an advantage of easy construction. However, it does not absorb solar radiation and it transfers to the atmosphere as it is, so it increases the atmospheric temperature. In the case of parks and walkways, There is a problem that it takes a lot of cost in construction.
Particularly, since the permeability is poor, the rainwater can not penetrate or absorb into the ground, causing a drastic decrease in the groundwater. This causes destruction of the underground ecosystem such as subsidence, slowing of the development of the roadside tree, do.
In addition, flood damage such as river flooding is increasing due to the lack of subterranean penetration in the rainy season.
In addition, in India and bicycle roads, concrete is usually laid on the ground, and the concrete is laid on blocks or elastic chips on it. Therefore, water permeability is weak in the concrete layer and water is flowing on the roads of India and bicycles. There are significant inconveniences such as limitations.
Accordingly, techniques related to a water permeable packaging material have been disclosed. For example, a number of patent technologies such as a registered patent No. 0826297 (Apr. 23, 2008) and a registered patent No. 0821320 (Apr.
However, since they concentrate only on improvement of permeability, they are weak in durability, and they are not only heavy but also difficult to assemble, which causes inconvenience and cost in construction, and takes a long time for construction.
SUMMARY OF THE INVENTION The present invention has been made in view of the above-described problems in the prior art, and has been made in view of the above problems, and it is an object of the present invention to provide a method of using a lightweight foamed concrete to improve permeability and durability, The present invention also provides a pavement method using lightweight foamed concrete excellent in permeability that can obtain effects such as suppression of flooding during heavy rainfall.
As a means for achieving the above object, the present invention provides a method of producing a lightweight foamed concrete (100), a lightweight foamed concrete layer (200) and a finish layer (300) In the method of packing an Indian or bicycle road; A compaction step for assuring that the ground is maintained at a uniform horizontal level; A mesh laying step of laying a mesh fabric woven with a polypropylene fiber impregnated with glass fiber on the upper surface of the ground; Forming a lightweight foamed concrete layer by spraying a lightweight foamed concrete composition onto the laid mesh; And a finishing layer forming step of finishing an open cell type elastic chip or an elastic block when the lightweight foamed concrete layer is cured, wherein the lightweight foamed concrete composition constituting the lightweight foamed concrete layer comprises: 30 to 50 parts by weight of sodium lauryl sulfate, 5-10 parts by weight of meta-kaolin, 5-10 parts by weight of sodium aluminate, 15 to 25 parts by weight of C 12 A 7 , 5-10 parts by weight of butyl acetate, 5-10 parts by weight of a latex emulsion, 15-30 parts by weight of a first mixture of a copolymer vinyl acetate and ethylene in a weight ratio of 3: 1, 20-30 parts by weight of a Solaeit basalt powder having a particle size of 0.1-0.2 mm The present invention also provides a packaging method using lightweight foamed concrete excellent in water permeability.
At this time, 25-35 parts by weight of a second mixture in which a nano-modified sulfur and 0.1-0.2 mm of clay powder are mixed at a weight ratio of 2: 1 to 100 parts by weight of the lightweight foamed concrete composition is further added to the lightweight foamed concrete layer (200) is further provided with crack resistance, chemical resistance, freeze-thaw resistance, and salt resistance.
Further, with respect to 100 parts by weight of the lightweight foamed concrete composition, 15 to 25 parts by weight of a third mixture obtained by uniformly dispersing a granite powder having a size of 0.1-0.2 mm in a solution obtained by dissolving an acrylic resin in Ethyl Cellosolve And it is also characterized in that it is formed so as to enhance adhesion and keep the gap smooth.
According to the packaging method of the present invention, water permeability of the packaging material is excellent, and a short time construction is possible, thereby reducing cost and time, preventing water from being floated on the roads of India and bicycles, have.
BRIEF DESCRIPTION OF THE DRAWINGS FIG. 1 is an exemplary view showing a construction section packaged by a packaging method according to the present invention. FIG.
Hereinafter, preferred embodiments of the present invention will be described in detail with reference to the accompanying drawings.
Before describing the present invention, the following specific structural or functional descriptions are merely illustrative for the purpose of describing an embodiment according to the concept of the present invention, and embodiments according to the concept of the present invention may be embodied in various forms, And should not be construed as limited to the embodiments described herein.
In addition, the embodiment according to the concept of the present invention can make various changes and have various forms. However, it should be understood that the embodiments according to the concept of the present invention are not intended to limit the present invention to specific modes of operation, but include all modifications, equivalents and alternatives falling within the spirit and scope of the present invention.
The present invention uses lightweight foamed concrete. Although lightweight foamed concrete itself has a problem that its compressive strength is somewhat lower than that of ordinary concrete, its specific gravity is significantly lower than that of ordinary concrete, and it is also excellent in thermal insulation. In the case where it is used in a portion excluding the bearing wall of a building, As well as being able to protect the building from its own load, it has excellent ability to block the temperature difference between the inside and outside of the building and has the use as an insulation material.
Such lightweight foamed concrete is mixed with a foam agent in cement. An animal, vegetable, protein foam, aluminum powder, anionic surfactant and the like are usually used as a foam agent.
However, since such lightweight foamed concrete must be cured in a high-temperature and high-pressure reactor (autoclave), the manufacturing cost is increased, and furthermore, a high heat energy is required to cure the foamed cement, It is difficult to utilize it as a packaging material. However, the present invention solves this problem and provides a paving method in which water permeability is improved while having a rapidity, thereby facilitating paving construction.
The paving method according to the present invention is mainly applied to India or bicycle roads, and includes a soil compaction step, a mesh installation step, a lightweight foamed concrete layer formation step, and a finish layer formation step.
Then, as shown in FIG. 1, a pavement having a sectional structure having the
At this time, the ground compaction step is a step of leveling the ground to be packed so as to maintain a uniform horizontal level by using a heavy equipment such as a compactor or the like.
When the ground compaction is completed, a mesh installation step is performed in which a mesh fabric woven with polypropylene fiber impregnated with glass fiber is installed on the upper surface of the ground.
The above-mentioned mesh installation step is intended to reduce permeability between the ground and the lightweight foamed concrete layer, to increase the water permeability structurally by forming a gap naturally while having a mutual wedge-type connection structure.
Here, the reason for using polypropylene fibers is to maximize the binding with the lightweight foamed concrete layer, and the reason for using glass fibers is to increase the durability. Impregnated.
The lightweight foamed concrete layer is formed by spraying and coating the following composition.
The lightweight foamed concrete having excellent water permeability according to the present invention further comprises a foaming agent and a rapid setting agent, a repairing agent, an emulsifying agent, a binder and a pore forming agent in the main component of the portland cement to enhance the room temperature hardening property, And a composition that prevents cracks through increase and increases tensile force by including fibers to make them suitable as repair reinforcements.
The composition is prepared by mixing 30 to 50 parts by weight of sodium lauryl sulfate, 5-10 parts by weight of meta-kaolin, 5-10 parts by weight of sodium aluminate, and 15 to 25 parts by weight of C 12 A 7 with respect to 100 parts by weight of portent cement as a main component 5-10 parts by weight of butyl acetate, 5-10 parts by weight of latex emulsion, 15-30 parts by weight of a first mixture of copolymer vinyl acetate and ethylene in a weight ratio of 3: 1, having a particle size of 0.1-0.2 mm 20-30 parts by weight of Solaeite basalt powder.
In order to increase the resistance to cracking, chemical resistance, freeze-thaw resistance and salt resistance, the lightweight foamed
In this case, the mixing ratio of the nano-modified sulfur and the white clay powder is such that the white clay powder is added to prevent corrosion and decay of the lightweight foamed
In addition, a third mixture, in which an elvan powder of 0.1-0.2 mm was evenly dispersed in a solution of acrylic resin dissolved in Ethyl Cellosolve so as to increase the adhesion and keep the pores smooth, 15 to 25 parts by weight based on 100 parts by weight of the resin.
The reason for limiting the numerical values of the components constituting the composition will be described as follows.
The sodium lauryl sulfate is a kind of surfactant as a foaming agent, and acts to increase the foaming property by lowering the tension at the interface.
Therefore, when the amount is less than 30 parts by weight, the foaming property is deteriorated. When the amount is more than 50 parts by weight, the flowability of the portland cement is deteriorated due to the increase in the flowability due to the foaming property.
Particularly, the sodium lauryl sulfate is preferably diluted with water. In this case, the dilution ratio should be 1: 2 in terms of the volume ratio of water to laurylsulfate so that the dilution ratio can contribute to the increase in the foamability without deteriorating the function.
The meta-kaolin is added to fill the voids between the cement particles and the repair reinforcement materials such as fine-grained materials so that the cured body can have a dense structure. The meta kaolin can be SiO 2 , Al 2 O 3 , Fe 2 O 3 as a main component and contains CaO, MgO, K 2 O, Na 2 O and the like.
In particular, the meta-kaolin converts calcium hydroxide produced by the hydration reaction of cement into calcium silicate hydrate to increase the adhesion with the reinforcing material, thereby enabling high-strength development.
In addition, by densifying the internal structure of the hardened body, permeability and water absorbency are reduced, and resistance to neutralization, freezing and thawing is increased, thereby improving durability.
In addition, the meta kaolin increases the initial strength by the formation of ettringite and activation of C 3 S in the cement in the short term, and improves durability and compressive strength by reaction with calcium hydroxide in the medium and long term.
When the amount of the meta-kaolin is less than 5 parts by weight, the activity of transferring the calcium hydroxide produced by the hydration reaction to the calcium silicate hydrate is low and durability and high strength are difficult to be expressed. When the amount is more than 10 parts by weight, It is not only difficult to make the construction workable, but it also improves the bonding strength, but it completely fills the voids and deteriorates the water permeability.
In addition, sodium aluminate is a representative aluminum-based liquid-phase sizing agent, and is commonly used as a coagulation agent.
In the present invention, it is necessary to add 5-10 parts by weight in consideration of complementarity with C 12 A 7. When added in an amount of less than 5 parts by weight, the cohesive force drops to lower the floccability and when the amount exceeds 10 parts by weight, And therefore should be added to the above range.
In addition, C 12 A 7 is a water-cooled amorphous mineral, such as a calcium aluminate amorphous material. The calcium aluminate-based amorphous material C 12 A 7 is added to accelerate the formation of the cement, thereby lowering the water content of the cement and increasing the initial strength. Particularly, the C 12 A 7 has no irritating properties against the human body, It is environment-friendly material because there is no leaching.
In addition, when C 12 A 7 is bound to a sodium aluminate, which is an aluminum-based liquid-phase quick-setting filler, at a given amount, it is possible to further enhance the toughness and ensure stability.
In the present invention, it is preferable to add 15 to 25 parts by weight. If less than 15 parts by weight is added, the water content can not be lowered to lower the tackiness. If the amount exceeds 25 parts by weight, .
In addition, the butyl acetate is added to prevent cracking of the lightweight foamed
Therefore, the butyl acetate should be added in the same amount as the latex emulsion.
The latex emulsion is added in order to increase the water retention after permeation. The latex emulsion should be limited to the above range in consideration of the reactivity with the butyl acetate and considering compatibility and application properties. In particular, it promotes the emulsification of portland cement.
In addition, the copolymer vinyl acetate and ethylene are blended in a weight ratio of 3: 1, and the blend should be used in a diluted form in about 2-10 times water.
This is the main pore forming agent which forms pores with curing by spheronization at the time of spraying. In order to maintain the elastic absorption power in the middle of pavement surface, cork, natural rubber, synthetic rubber and the like can be further added. In this case, the additive should be in powder form with a particle size of 0.1-0.2 mm.
If it is added in an amount of less than 15 parts by weight, voids can not be formed smoothly, resulting in poor water permeability. If the amount exceeds 30 parts by weight, bonding force and adhesion force are lowered.
Lastly, the Solaeite basalt powder is the primary use to prevent excessive alkalization and is added to contribute to pore formation.
Therefore, when the amount is less than 20 parts by weight, the lightweight foamed
When the lightweight foamed
In this case, the
Then, the packaging surface as shown in Fig. 1 can be constructed.
Since the
Hereinafter, examples will be described.
[Example]
In order to confirm the characteristics of the lightweight foamed concrete excellent in water permeability according to the present invention, a lightweight foamed concrete composition formed within the above composition range was applied on an iron plate with a thickness of 1 cm and cured, .
At this time, lightweight foamed concrete was prepared as the inventive materials 1, 2 and 3 shown in the following Table 1, and the conventional material to be compared was a general concrete packing material.
(In the above Table 1, the component composition ratio is the relative mixing ratio (parts by weight) of the remaining components relative to 100 parts by weight of the portland cement as the basic component. Further, RA is sodium lauryl sulfate, Mt is meta kaolin, Alsa is sodium aluminate, BA Is butyl acetate, RTx is a latex emulsion, and SI is a solaeite basalt powder.)
The same amount of water was poured to confirm the permeability and the degree of permeability was confirmed. The results are shown in Table 2.
As a result of the measurement, the inventive materials according to the present invention were found to have high permeability, but it was confirmed that the permeability of the conventional materials was very low due to the low permeability.
Thus, when the packaging method according to the present invention was adopted, it was predicted that sufficient permeability could be secured.
100: ground layer 200: lightweight foamed concrete layer
300: finish layer
Claims (3)
A compaction step for assuring that the ground is maintained at a uniform horizontal level;
2-3 mm short fiber on top of compaction ground? A mesh installation step of laying a mesh fabric woven with polypropylene fibers impregnated with glass fibers having a shape;
Forming a lightweight foamed concrete layer by spraying a lightweight foamed concrete composition onto the laid mesh;
When the lightweight foamed concrete layer is cured, an open cell type elastic chip or an elastic block is laid on the lightweight foamed concrete layer to form a closed finish layer,
Lightweight foamed concrete composition constituting the light-weight cellular concrete layer is, relative to 100 parts by weight of portland cement, sodium lauryl sulfate 30 to 50 parts by weight, 5 to 10 parts by weight of metakaolin, aluminate soda, 5 to 10 parts by weight C 12 15 to 25 parts by weight of A 7 , 5-10 parts by weight of butyl acetate, 5-10 parts by weight of latex emulsion, 15-30 parts by weight of a first mixture of copolymer vinyl acetate and ethylene in a weight ratio of 3: 1, 20-30 parts by weight of a solaeite basalt powder having a particle size of 0.2 mm;
25 to 35 parts by weight of a second mixture in which a nano-modified sulfur and 0.1 to 0.2 mm of clay powder are mixed at a weight ratio of 2: 1 is further added to 100 parts by weight of the lightweight foamed concrete composition to form the lightweight foamed concrete layer 200 ) To impart crack resistance and chemical resistance, freeze-thaw resistance, and salt resistance;
To 100 parts by weight of the lightweight foamed concrete composition, 15-25 parts by weight of a third mixture obtained by uniformly dispersing an elvan powder of 0.1-0.2 mm in size was added to a solution of an acrylic resin dissolved in Ethyl Cellosolve And the pores are maintained smoothly. The pavement method using lightweight foamed concrete excellent in water permeability.
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Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| KR101740700B1 (en) * | 2017-01-09 | 2017-05-26 | 이호준 | Lightweight foamed concrete with improved insulation and soundproofing |
| KR101920005B1 (en) | 2018-01-25 | 2018-11-19 | 케이지포장건설(주) | Water Permeable Asphalt Concrete Mixtures and Manufacturing Methods |
| KR102007638B1 (en) | 2019-01-10 | 2019-08-06 | 정면 | Construction method for eco-friendly porous pavement |
| KR102183800B1 (en) | 2020-05-19 | 2020-11-30 | 도경건설 주식회사 | A permeable concrete composition having high strength and durability for eco-friendly elastic pavement and eco-friendly method for elastic pavement |
| KR102536616B1 (en) * | 2022-03-25 | 2023-05-26 | 김대생 | Nature-friendly permeable pavement with improved permeability using shells and porous minerals and its construction method |
| KR102694944B1 (en) | 2023-05-18 | 2024-08-14 | 박상진 | Solidification composition provided with lightweight foam |
Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| KR101392433B1 (en) * | 2014-01-03 | 2014-05-07 | 이호준 | Method for manufacturing lightweight aerated concrete with enhanced quick setting property |
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2015
- 2015-04-28 KR KR1020150060038A patent/KR101573028B1/en active IP Right Grant
Patent Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| KR101392433B1 (en) * | 2014-01-03 | 2014-05-07 | 이호준 | Method for manufacturing lightweight aerated concrete with enhanced quick setting property |
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| KR101740700B1 (en) * | 2017-01-09 | 2017-05-26 | 이호준 | Lightweight foamed concrete with improved insulation and soundproofing |
| KR101920005B1 (en) | 2018-01-25 | 2018-11-19 | 케이지포장건설(주) | Water Permeable Asphalt Concrete Mixtures and Manufacturing Methods |
| KR102007638B1 (en) | 2019-01-10 | 2019-08-06 | 정면 | Construction method for eco-friendly porous pavement |
| KR102183800B1 (en) | 2020-05-19 | 2020-11-30 | 도경건설 주식회사 | A permeable concrete composition having high strength and durability for eco-friendly elastic pavement and eco-friendly method for elastic pavement |
| KR102536616B1 (en) * | 2022-03-25 | 2023-05-26 | 김대생 | Nature-friendly permeable pavement with improved permeability using shells and porous minerals and its construction method |
| KR102694944B1 (en) | 2023-05-18 | 2024-08-14 | 박상진 | Solidification composition provided with lightweight foam |
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