KR101173576B1 - Binder for pervious pavement - Google Patents

Abstract

PURPOSE: A binder for a water-permeable paving material is provided to reduce damage to a water-permeable paving material caused by waste accumulated on the gaps of the water-permeable paving material. CONSTITUTION: A binder for a water-permeable paving material comprises 6-13 weight% of quicklime, 6-13 weight% of sodium sulfonate, 9-19 weight% of water-soluble starch, 18-37 weight% of sodium silicate, and 0.1-3 weight% of silicate minerals based on 100 weight% of water.

Description

Binder for pervious pavement

The present invention relates to a binder for a permeable packaging material that is mixed with aggregates such as molten slag, gravel or soil and permeable packaging material containing cement, to increase the permeability and strength of the permeable packaging material, more specifically water, quicklime , Including sodium sulfonate and water-soluble starch, mixed with a permeable packaging material containing one or more aggregates of cement, molten slag, gravel or soil and cement, to ensure a constant gap between the aggregate and the aggregate permeable packaging material The present invention relates to a water-permeable packaging material binder that can improve the permeability of the product and at the same time improve the strength of the water-permeable packaging material.

Typical permeable packaging materials consist of a major composition of aggregate and cement, such as a quantity of molten slag, gravel or soil. In addition, in recent years, in order to improve the permeability and strength of the permeable packaging material, the composition of the aggregate and cement further comprises a geosynthetic or functional composition (binder) having a particle size smaller than the void formed between the aggregate and the aggregate I'm doing it.

However, as described above, the water-permeable packaging material composed of only the aggregate and cement as a main composition exhibits water permeability due to the inflow and movement of water located in the upper portion of the packaging material through the gap formed between the aggregate and the aggregate. Wastes accumulate in the voids due to the inflow and movement, and the accumulated wastes are repeatedly frozen or thawed according to seasonal changes, causing cracks in the packaging material or raising the surface of the packaging material.

In addition, the permeable packaging material in which the geosynthetic fiber or the functional composition is further mixed with the aggregate and cement in the main composition has insufficient water permeability and strength due to the geotextile or the functional composition, resulting in insufficient functional improvement of the permeable packaging material.

The following is a representative prior art for permeable packaging materials.

Korean Patent No. 10-0995092 relates to a method for constructing a permeable package using the domestic waste molten slag, which is filed by the applicant, and passes 80% or more in a 2.5mm sieve and 100% in a 5mm sieve. 20 to 30 parts by weight of circulating crushed aggregate based on 100 parts by weight of slag passing 45 to 55 parts by weight, 90% or more in a 5 mm sieve, and less than 90% in a 2.5 mm sieve, and usually 12 to 12 parts Presenting a permeable pavement layer consisting of 23 parts by weight, 3 to 8 parts by weight of water, 0.6 to 1.3 parts by weight of color pigments and 0.1 to 0.4 parts by weight of admixtures, to prevent water film phenomenon by draining the water flowing into the surface The pattern installed on the surface layer improves the usability of the surface and prevents slippage and beautiful road surface, and the incoming water is stored in the basement surface to help the surrounding vegetation and prevent flooding.

However, the prior art improves the strength of the permeable packaging material by filling the voids formed between the aggregate and the aggregate more effectively, and at the same time insufficient construction to secure more permeability, the binder for permeable packaging material to solve this problem Ongoing research and development is required.

The present invention has been made to improve the problems according to the prior art of the binder for water-permeable packaging material, the conventional water-permeable packaging material does not include a binder for improving water permeability, water is repeated in the gap between the aggregate and the aggregate Inflow and movement of wastes accumulate in the voids, and the accumulated wastes freeze or thaw as the season changes, causing cracks in the packaging material, or the surface of the packaging material is raised.

The permeable packaging material in which the geotextile or functional composition is further mixed with the aggregate and cement composition is a geotextile or functional composition, which reduces the size of the pores formed between the aggregate and the aggregate, thereby reducing the amount of waste accumulated in the pores. Although the effect of solving a little is realized, the problem which the effect is insignificant arises, and the main objective is to provide the solution to this.

The present invention is to realize the desired object as described above,

A binder for permeable packaging material, which is mixed with a permeable packaging material comprising at least one aggregate of molten slag, gravel or soil and cement, comprising: 6 to 13 parts by weight of quicklime, based on 100 parts by weight of water; 6-13 parts by weight of sodium sulfonate; It proposes a water-permeable packaging binder comprising 9 to 19 parts by weight of water-soluble starch.

The binder for a water-permeable packaging material according to the present invention as described above ensures a constant gap between the aggregate and the aggregate contained in the water-permeable packaging material to ensure that the water-permeable packaging material exhibits excellent water permeability, and accumulates in the voids. By reducing the amount of waste, it is possible to reduce the damage of permeable packaging material caused by waste, and to improve the cohesion between aggregates and aggregates adjacent to each other with respect to voids, thereby providing a high strength permeable packaging material. .

The present invention relates to a binder for a permeable packaging material that is mixed with aggregates such as molten slag, gravel or soil and permeable packaging including cement to increase the permeability and strength of the permeable packaging, and among the molten slag, gravel or soil A binder for permeable packaging material which is mixed in a permeable packaging material containing any one or more aggregates and cement, comprising: 6 to 13 parts by weight of quicklime, based on 100 parts by weight of water; 6-13 parts by weight of sodium sulfonate; It relates to a water-permeable packaging binder, characterized in that comprises; 9 to 19 parts by weight of water-soluble starch.

Specifically, the quicklime according to the present invention is configured to be easily combined with the lime component, which is one of the cement components of the permeable packaging material, and the calcium, silica, and alumina components in the cement produce more dense hydrate, and whitening. It suppresses the dissolution and migration of calcium hydroxide, the hydrate corresponding to the substance causing the phenomenon, thereby suppressing the whitening of the permeable packaging material.

At this time, when the quicklime is included in less than 6 parts by weight with respect to 100 parts by weight of water contained in the binder for permeable packaging material, the composition ratio of the quicklime is insignificant, causing a problem of weakening the whitening phenomenon of the permeable packaging material, 13 parts by weight If it is included in excess, since the problem occurs that can promote the whitening of the permeable packaging material completed because of the excess included quicklime, it is preferable to be included in the binder for permeable packaging material in the above composition ratio.

In addition, sodium sulfonate, when the binder for water-permeable packaging material according to the present invention is mixed in the water-permeable packaging material, performs an anionic surfactant function, thereby improving the dispersion of the cement mixed in the water-permeable packaging material to the water to hydrate the cement It exhibits the effect of increasing the activity, improves the fluidity of the water-permeable packaging material, and exhibits the effect of facilitating the construction of the water-permeable packaging material.

At this time, sodium sulfonate, in which hydrogen of sulfonic acid having a basic structure of RS (= O) 2-OH (R is alkyl or allyl), is substituted with sodium, corresponds to one of sulfonic acid salts, and a function corresponding to R Various kinds of groups can be appropriately adopted and used according to the judgment of those skilled in the art.

In addition, when sodium sulfonate is included in less than 6 parts by weight with respect to 100 parts by weight of water contained in the binder for permeable packaging material, the composition ratio of sodium sulfonate is insignificant, so that the dispersibility and water permeability of cement contained in the permeable packaging material It is difficult to smoothly realize the effect of improving the fluidity of the packaging material, if included in excess of 13 parts by weight, the viscosity of the water-permeable packaging material occurs, so that the composition ratio within the above range included in the binder for water-permeable packaging material It is preferable to be.

In addition, the water-soluble starch is a component for improving the material separation resistance between inorganic compositions other than the water-soluble starch included in the binder for water-permeable packaging materials, and general synthetic resin binders such as urethane-based binders, epoxy-based binders, acrylic binders or ester-based binders, and the like. Since it is composed of natural organic materials differently, it exhibits an effect of not generating a harmful component to the human body during or after construction of the water-permeable packaging material.

At this time, when the water-soluble starch is included in less than 9 parts by weight with respect to 100 parts by weight of water contained in the binder for water-permeable packaging material, the composition ratio of the water-soluble starch is insignificant, and the inorganic composition included in the binder for water-permeable packaging material according to the present invention (quick lime , Does not provide smooth adhesion between sodium sulfonate, sodium silicate, calcium chloride, squalesite, soda fluorite and chlorophyll), resulting in a problem of a slight improvement in material separation resistance between inorganic compositions, and 19 parts by weight When included in excess, since the water-soluble starch is excessively included in the binder for permeable packaging material may cause a problem that the strength and durability of the finished permeable packaging material may be degraded, it is preferable that the binder is included in the binder for permeable packaging material in a composition ratio within the above range. .

In connection with the above, the binder for water-permeable packaging according to the present invention further comprises sodium silicate (sodium meta-silicate, Na 2 SiO 2 · nH 2 O) in the binder for water-permeable packaging comprising water, quicklime, sodium sulfonate and water-soluble starch. It is possible to include a configuration.

That is, the sodium silicate reacts with various metal ions such as calcium, magnesium, aluminum or barium in cement components included in the water-permeable packaging material to form an insoluble silicate metal hydrate to fill voids formed between the aggregate and the aggregate. The effect is to make.

At this time, when the sodium silicate is contained less than 18 parts by weight with respect to 100 parts by weight of water contained in the binder for permeable packaging material, the composition ratio of sodium silicate is insignificant compared to the amount of metal ions contained in the general cement of the permeable packaging material, The problem that it is difficult to form metal ions smoothly into silicate metal hydrate occurs, and when included in excess of 37 parts by weight, there is a fear that metal ions and unreacted sodium silicate may promote whitening phenomenon within the above range. It is preferable that it is contained in the binder for permeable packaging materials by a composition ratio.

In addition, the present invention may be configured such that the binder for permeable packaging material comprising water, quicklime, sodium sulfonate and water-soluble starch or the binder for permeable packaging material further comprising sodium silicate further includes calcium chloride.

Specifically, the calcium chloride is configured to control the curing rate of the cement mixed in the water-permeable packaging material, and generally, the curing of the cement in which the initial set, the setting, and the final set steps are sequentially performed. In the process, by exhibiting the effect of adjusting the cement curing rate in the initial stage during the construction work, it is possible to obtain the effect of adjusting the work speed of the permeable packaging material construction.

At this time, when calcium chloride is contained in less than 21 parts by weight with respect to 100 parts by weight of water contained in the binder for water-permeable packaging material, the composition ratio of calcium chloride is insignificant, so that it is difficult to shorten the cement curing rate of the water-permeable packaging material, 32 weight If it is included in excess of the amount, the calcium chloride is contained in an excessive composition ratio, the cement curing rate is too fast, so that the construction work of the permeable packaging material must proceed too fast, the composition ratio contained in the binder permeable packaging material within the above range It is preferable.

In addition, the present invention, instead of the calcium chloride, water, quicklime, sodium sulfonate and water-soluble starch binder or water-permeable binder further comprises a sodium silicate binder is configured to further include calcium sulfate You may.

That is, the calcium sulfate is configured to control the curing rate of the cement mixed in the water-permeable packaging material, it is possible to obtain the effect of controlling the working speed of the water-permeable packaging construction by the same principle as the calcium chloride, according to the detailed description Is replaced by the description of the calcium chloride.

In addition, when calcium sulfate is contained in less than 10 parts by weight with respect to 100 parts by weight of water contained in the binder for water-permeable packaging material, the composition ratio of calcium sulfate is insignificant, it is difficult to shorten the cement curing rate of the water-permeable packaging material, 15 When included in excess of the weight part, calcium sulfate is contained in an excessive composition ratio, the cement curing rate is too fast, so that the construction work of the permeable packaging material must proceed too fast, the composition ratio within the above range in the binder for permeable packaging material It is preferred to be included.

In addition, the present invention is a binder for permeable packaging material comprising water, quicklime, sodium sulfonate and water-soluble starch or a binder for permeable packaging material further comprises sodium silicate, any one or more of squalesite, soda fluorite or chlorophyll It may be configured to further contain silicate minerals (although the binder for permeable packaging may further contain calcium chloride or calcium sulfate).

That is, since the silicate mineral contains a large amount of the same silica dioxide component as the silica dioxide contained in the tricalcium silicate (3CaO-SiO2) and dicalcium silicate (2CaO-SiO2) which are the main components of cement, it is easily mixed with cement and permeable It provides the effect of increasing the strength of the sex packaging.

In addition, it will be apparent that silicate minerals further included in the binder for permeable packaging materials have an average particle size smaller than the size of aggregates included in the permeable packaging material, and the silicate mineral of this size is used between the aggregate and the aggregate of the permeable packaging material. It fills in the pores and fills the pores, and at the same time realizes the effect of allowing water to penetrate into the smaller pores formed between the silicate mineral particles.

In connection with the above, it is more preferable that the average particle size of the silicate mineral be as large as possible with other inorganic compositions so that it can be easily mixed with other inorganic compositions of the binder for permeable packaging according to the present invention, and more specific silicates The average particle size of the mineral is freely adjustable according to the judgment of those skilled in the art.

In addition, the scolecite of the silicate mineral is a silicate and aluminate tetrahedron (such as silicon or aluminum having four oxygen atoms at the center) such as nitrolite, a hydrated sodium aluminum silicate mineral belonging to a group of zeolites. It has a molecular structure composed of chains connected together, and has a fibrous form because the horizontal bonds between the chains are relatively poor. It is effective in increasing resistance to damages such as freezing and thawing.

In addition, the soda-fluorite of the silicate mineral is one of the fluorite minerals similar to the characteristics of squalesite and at the same time is a tetragonal silicate mineral. In addition, since soda-fluorite has an elongated row-shaped columnar or needle-shaped crystal form, like scholite, it densifies the hydrate of the permeable packaging material, which increases long-term durability and resistance to damages such as freezing and thawing. It is effective.

In addition, the calcite mineral (pyrophyllite) is a silicate mineral having a color such as white, green and yellow, and having a smooth surface and gloss.

In addition, since the rock salt has a board-shaped crystal form, the hydrate of the permeable packaging material is compacted like the squalesite or soda fluorite, thereby exerting long-term durability and resistance to damages such as freeze-thawing and salt damage. .

In connection with the above, it is preferable that the silicate mineral according to the present invention is further contained in an amount of 0.1 to 3 parts by weight based on 100 parts by weight of water contained in the binder for permeable packaging material. At this time, when the silicate mineral is included in the binder for water-permeable packaging material less than 0.1 parts by weight, the difficulty of improving the water permeability of the water-permeable packaging material by the binder for water-permeable packaging material containing silicate minerals occurs, and exceeds 3 parts by weight. When included, the effect on improving water permeability is excellent, but the problem of economical disadvantage occurs, it is preferable to be included in the binder for water-permeable packaging material in the composition ratio within the above range.

The following is a comparative example of the water-permeable packaging material using the water-permeable packaging material binder according to a preferred embodiment of the present invention and the water-permeable packaging material according to the prior art.

1. Preparation of binder for permeable packaging

① 100 g of quicklime, 100 g of sodium sulfonate, and 140 g of water-soluble starch are added to 1000 g of water, and stirred and mixed to prepare a binder for permeable packaging material.

② 100 g of quicklime, 100 g of sodium sulfonate, 140 g of water-soluble starch, and 200 g of sodium silicate were added to 1000 g of water, and stirred and mixed to prepare a binder for permeable packaging.

③ 100 g of quicklime, 100 g of sodium sulfonate, 140 g of water-soluble starch, 200 g of sodium silicate and 250 g of calcium chloride are added to 1000 g of water, and stirred and mixed to prepare a binder for permeable packaging material.

④ 100 g of water, 100 g of quicklime, 100 g of sodium sulfonate, 140 g of water-soluble starch, 200 g of sodium silicate and 120 g of calcium sulfate are added and stirred and mixed to prepare a binder for permeable packaging material.

⑤ 100 g of quicklime, 100 g of sodium sulfonate, 140 g of water-soluble starch, 200 g of sodium silicate, 250 g of calcium chloride, and 20 g of squales are added to 1000 g of water, followed by stirring to prepare a binder for permeable packaging material.

2. Manufacture of permeable packaging materials

Example 1

48.9 kg of domestic waste molten slag, 29.3 kg of silica sand, 16.2 kg of cement (portland cement), 0.08 kg of water reducing agent (melamine-based), 5.5 kg of water, and permeable packaging material prepared by ① of the above-mentioned binder for water-permeable packaging material Permeable packaging material is prepared by stirring and mixing 0.02 kg of the binder.

[Example 2]

Stirring mixing 82 kg of crushed aggregate (13 mm), 13.8 kg of cement (Portland cement), 0.08 kg of water reducing agent (melamine), 4.1 kg of water, and 0.02 kg of binder for permeable packaging material prepared by ① of the above-mentioned permeable packaging material To prepare a permeable packaging material.

[Example 3]

No. 3 silica sand 14.3kg, sieved masato 63.9kg, cement (Portland cement) 16.2kg, water reducing agent (melamine-based) 0.08kg, water 5.5kg and the water-permeable packaging material binder prepared by ① of the binder for water-permeable packaging material A water permeable packaging material is prepared by stirring and mixing 0.02 kg.

Example 4

48.9 kg of domestic waste molten slag, 29.3 kg of silica sand No. 3, 16.2 kg of cement (Portland cement), 0.08 kg of water reducing agent (melamine-based), 5.5 kg of water, and water permeable packaging material prepared by ② of the binder for the water-permeable packaging material Permeable packaging material is prepared by stirring and mixing 0.02 kg of the binder.

[Example 5]

Stirring mixing 82 kg of crushed aggregate (13 mm), 13.8 kg of cement (Portland cement), 0.08 kg of water reducing agent (melamine-based), 4.1 kg of water and 0.02 kg of the permeable packaging material binder prepared by ② of the above-mentioned permeable packaging material To prepare a permeable packaging material.

[Example 6]

No. 3 silica sand 14.3kg, sieving masato 63.9kg, cement (Portland cement) 16.2kg, water reducing agent (melamine-based) 0.08kg, water 5.5kg and the water-permeable packaging material binder prepared by ② of the manufacture of the binder for water-permeable packaging material A water permeable packaging material is prepared by stirring and mixing 0.02 kg.

[Example 7]

48.9 kg of domestic waste molten slag, 29.3 kg of silica sand, 16.2 kg of cement (Portland cement), 0.08 kg of water reducing agent (melamine), 5.5 kg of water, and water permeable packaging material prepared by ③ of the above-mentioned binder for water-permeable packaging material Permeable packaging material is prepared by stirring and mixing 0.02 kg of the binder.

Example 8

Stirring mixing 82 kg of crushed aggregate (13 mm), 13.8 kg of cement (Portland cement), 0.08 kg of water reducing agent (melamine type), 4.1 kg of water, and 0.02 kg of binder for permeable packaging material prepared by ③ of the above-mentioned permeable packaging material To prepare a permeable packaging material.

[Example 9]

No. 3 silica sand 14.3kg, sieved masato 63.9kg, cement (Portland cement) 16.2kg, water reducing agent (melamine-based) 0.08kg, water 5.5kg and the binder for water-permeable packaging material prepared by ③ of the binder production for the water-permeable packaging material A water permeable packaging material is prepared by stirring and mixing 0.02 kg.

[Example 10]

Household waste molten slag 48.9kg, No. 3 silica sand 29.3kg, Cement (Portland cement) 16.2kg, Water reducing agent (melamine-based) 0.08kg, Water 5.5kg and Permeable packaging materials prepared by ④ of the binder production for the permeable packaging materials Permeable packaging material is prepared by stirring and mixing 0.02 kg of the binder.

Example 11

Stirring mixing 82 kg of crushed aggregate (13 mm), 13.8 kg of cement (Portland cement), 0.08 kg of water reducing agent (melamine-based), 4.1 kg of water and 0.02 kg of water-permeable packaging material binder prepared by ④ of the above-mentioned water-permeable packaging material To prepare a permeable packaging material.

[Example 12]

No. 3 silica sand 14.3kg, sieving masato 63.9kg, cement (Portland cement) 16.2kg, water reducing agent (melamine-based) 0.08kg, water 5.5kg and the water-permeable packaging material binder prepared by ④ of the manufacture of the binder for water-permeable packaging material A water permeable packaging material is prepared by stirring and mixing 0.02 kg.

[Example 13]

Permeable packaging prepared by ⑤ of domestic waste molten slag 48.9 kg, No. 3 silica sand 29.3 kg, cement (Portland cement) 16.2 kg, water reducing agent (melamine-based) 0.08 kg, water 5.5 kg and binder preparation for the permeable packaging material A water permeable packaging material is prepared by stirring and mixing 0.02 kg of a binder for reuse.

Example 14

Stirring mixing 82 kg of crushed aggregate (13 mm), 13.8 kg of cement (Portland cement), 0.08 kg of water reducing agent (melamine-based), and 4.1 kg of water 4.1 kg of water-permeable packaging material prepared by ⑤ of the above-mentioned water-permeable packaging material To prepare a permeable packaging material.

Example 15

No. 3 silica sand 14.3kg, sieved masato 63.9kg, cement (Portland cement) 16.2kg, water reducing agent (melamine-based) 0.08kg, water 5.5kg and the water-permeable packaging material binder prepared by ⑤ of the manufacture of the binder for water-permeable packaging material A water permeable packaging material is prepared by stirring and mixing 0.02 kg.

Comparative Example 1

48.9 kg of domestic waste molten slag, 29.3 kg of silica sand No. 3, 16.2 kg of cement (Portland cement), 0.08 kg of water reducing agent (melamine-based) and 5.5 kg of water are stirred and mixed to prepare a permeable packaging material.

Comparative Example 2

A permeable packaging material is prepared by stirring and mixing 82 kg of crushed aggregate (13 mm), 13.8 kg of cement (Portland cement), 0.08 kg of water reducing agent (melamine type), and 4.1 kg of water.

Comparative Example 3

14.3 kg of silica sand, 63.9 kg of sieved masato, 16.2 kg of cement (Portland cement), 0.08 kg of water reducing agent (melamine type), and 5.5 kg of water are stirred and mixed to prepare a permeable packaging material.

Tables 1 to 3 below show Examples 1 to 15 showing the water-permeable packaging material using the binder for water-permeable packaging material prepared according to the present invention and Comparative Examples 1 to 3 showing the water-permeable packaging material according to the prior art. The composition is shown.

3. Test

① After mixing the permeable packaging material according to Examples 1 to 15 and Comparative Examples 1 to 3 so that the sluff becomes 0, a circular mold of ø10 cm × 20 cm for compressive strength test, a permeability test, and a slip resistance test were performed. Is poured into a 30 cm × 30 cm × 5 cm mold, and cured and cured to form a permeable packaging specimen.

② Test the permeable packaging specimens prepared above by the test method according to KS F 2394 (in-situ permeability testing method of permeable packaging material), and measure the permeability of each specimen, and the results are shown in Table 4 below. .

(3) The compressive strength test was carried out for each of the permeable packaging specimens prepared above, and the compressive strength of each specimen was measured, and the results are shown in Table 4 below.

④ The permeable packaging specimens prepared above were tested by the test method according to KS F 2375 (Slip resistance test method of the road surface), and the slip resistance of each specimen was measured, and the results are shown in Table 4 below.

4. Results

Binder for permeable packaging material according to the present invention, as shown in the permeability test results of Examples 1 to 3 and Comparative Examples 1 to 3, there is a slight difference depending on the type of aggregate included in the permeable packaging material, but the same aggregate Depending on the type of (Example 1 and Comparative Example 1, Example 2 and Comparative Example 2 and Example 3 and Comparative Example 3.) it can be seen that it has a superior water permeability than the comparative example according to the prior art.

In addition, the permeable packaging material containing the binder for permeable packaging material according to the present invention, as shown in the compressive strength test results according to Examples 1 to 3, having a superior compressive strength with the permeable packaging material according to Comparative Examples 1 to 3 Able to know.

In connection with the above, as shown in the compressive strength test results according to Examples 4 to 15, if the binder for permeable packaging material according to the present invention further comprises sodium silicate, silicate voids between the aggregate and the aggregate of the permeable packaging material It can be seen that the effect of filling the metal hydrate occurs, thereby exhibiting the effect of improving the compressive strength of the water-permeable packaging material.

In addition, as the compressive strength test results of Examples 13 to 15 show, when the water-permeable packaging binder according to the present invention further contains squalesite, which is one of the silicate minerals, the water permeability is better than that of Examples 4 to 6. It can be seen that it exerts.

In addition, the water-permeable packaging material containing the binder for water-permeable packaging material according to the present invention has a value similar to that of Comparative Examples 1 to 3 according to the prior art even in slip resistance, so that the safety of pedestrians can be obtained smoothly. It can be seen that.

The above has been described with reference to a preferred embodiment of the present invention, but is not limited to the above embodiment, the person having ordinary skill in the art to which the present invention pertains through the above embodiments without departing from the gist of the present invention Can be implemented in a variety of changes.

Claims (5)

delete delete delete delete In the binder for permeable packaging material mixed with a permeable packaging material containing cement and at least one of molten slag, gravel or soil,
6 to 13 parts by weight of quicklime, based on 100 parts by weight of water; 6-13 parts by weight of sodium sulfonate; 9 to 19 parts by weight of water-soluble starch; including,
The binder for water-permeable packaging material is a squalesite having a molecular structure composed of 18 to 37 parts by weight of sodium silicate and a chain bonded by an aluminate tetrahedron with respect to 100 parts by weight of water, and an elongated strip-shaped columnar or needle bed. A binder for a water-permeable packaging material, characterized in that it further comprises 0.1 to 3 parts by weight of one or more silicate minerals of soda-fluorite or plank-shaped calcite having a crystal form.