JPH0679802B2 - Reconstruction and preservation method of ruins and remains - Google Patents

Description

Detailed Description of the Invention

[0001]

[Industrial field of use] The present invention is for the maintenance and restoration of ruins and remains.
Regarding the preservation method, more specifically, the inside of the ruins / remains is treated with a polysiloxane-polyoxyalkylene block copolymer, and the surface is treated with a polyalkylene glycol-added silicone compound or with these and a silicone-based curable composition. Regarding maintenance and restoration / preservation method of ruins / remains by doing.

[0002]

[Prior Art] People have lived in the Japanese archipelago for tens of thousands of years, and there are dwellings from the Jomon and Yayoi eras to the modern times, agricultural land, graves, shell mounds, temples, and tatara traces. Ware, copper mirror,
Many ruins and remains are left, such as the foundry sites of castings.
These ruins and remains are valuable cultural assets left by our ancestors, and it is strongly desired to preserve them in their original form in order to preserve and utilize them in the future without their destruction. The ruins and remains so far are paddy fields, wilderness, forests,
It has been buried underground in lakes, rivers, etc. and protected by its soil and water. Therefore, even after a long period of several thousand years, it has retained its original shape in good condition.

However, in recent years, because of the construction of roads, houses, factories, playgrounds, stores, cultivated land, etc. due to the improvement of social infrastructure, the opportunity to dig up the ground has increased, and many new archaeological sites have been discovered. If the remains / remains that have been dug up are left as they are, weathering due to wind and rain, shrinkage cracks due to changes in soil water, overgrowth of plants and moss, and destruction by humans will cause the original shape to disappear rapidly, which is a major problem for preservation and utilization. Has become.

[0004] For the purpose of preserving the ruins and exhibiting them for display, so-called archaeological halls, etc. have been constructed in which the entire ruins are covered with a protection building and visitors observe through the glass windows. As a result, the effects of wind and rain and destruction by humans and animals have disappeared, but mold and moss grow on the surface of the ruins, causing insects that feed on them and causing damage to the ruins and remains. ing. As a countermeasure against this, a biocontrol agent such as formalin water or gramxone was sprayed about once a month, but it has little effect of preventing biological damage and has an effect on the human body. Therefore, a new biological control method is desired. On the other hand, preservation by the protection building of the ruins is due to evaporation of soil moisture due to greenhouseization (20
About 800 cc of water evaporates per 1 m ² / day at around ℃), and ruins are dried and cracks occur, and some of them are desertified. In addition, there are some inconveniences such as the inability to distinguish the burned soil from the furnace due to drying etc., the precipitation of soluble salts in a part of the ruins due to evaporation of soil moisture, and the cracking and collapse of the remains. is there.
As a countermeasure against these, polyethylene glycol, acrylamide, magnesium acrylate, vinyl acetate emulsion, etc. have been used to protect the ruins by forming a protective film on the surface. However, polyethylene glycol was fairly stable for about a week after the treatment, but after that it dissolved in the soil water and diffused, and the effect was lost within a few weeks. Acrylamide contracted as the gelled protective film dried. There is a problem that it is raised, and the soil surface is peeled off to peel up into scales, and magnesium acrylate also deteriorates over time and peels off into scales.

There are various facilities where human beings lived in the ruins, and the maintenance and restoration / preservation of them are important issues.
For example, a dwelling site has a three-dimensional structure such as a wooden pillar, a stove, a food storage site, and an underground warehouse, and is mainly composed of soil. Once these remains have been discovered and excavated and the soil that protected them has been removed, they will subsequently collapse in the short term due to the action of rainwater, dryness, humans, animals, insects, and reptiles in the ground. Therefore, there has been a long-felt need for a method of maintaining and restoring these remains in their original state and storing them, but there was no suitable method, and a solution was required.

[0006]

DISCLOSURE OF THE INVENTION The present invention is to maintain and restore remains / remains, etc. so that the restored state lasts for a long period of time, and the surface of the restored remains / remains has mold.
Preventing biological damage such as moss from occurring, and in addition to this, do not peel off the soil surface of ruins, ruins, etc., generate cracks, or make it desert,
The challenge was to provide a method for the maintenance and restoration / preservation of archaeological sites / remains that can prevent changes in color tone, maintain the treatment effect for a long time, and have no adverse effects on the human body. .

[0007]

As a result of earnest research, the present inventors have conducted tests on many low molecular weight compounds and high molecular weight compounds and combinations thereof, and in the case of specific silicone compounds and combinations thereof, The present invention has been completed by demonstrating that the above problem can be solved.

That is, according to the present invention, in a method of maintaining and restoring deteriorated ruins / remains according to an actual measurement map and further preserving them as they are, the soil layers and the like constituting the remnants / remains are arranged from the bottom to the first layer. Reconstruction to a thickness of ~ 50 cm according to the measurement map, and evenly spraying the solution of polysiloxane-polyoxyalkylene block copolymer on the surface, and performing the same work as above on the original form of the ruins and remains. Remains characterized by repeating 1 to 50 cm below the top layer, reconstructing a soil top layer having a thickness of 1 to 50 cm, and evenly spraying a solution of a polyalkylene glycol-added silicone compound on the surface. Reconstruction / restoration method of remains.

A preferred embodiment of the method for maintaining, restoring and preserving ruins and remains of the present invention is to use the above polyalkylene glycol-added silicone compound in combination with a silicone-based curable composition.

In another preferred embodiment of the present invention, the polyalkylene glycol-added silicone compound has the following formula (Formula 2):

[Chemical 2] (In the formula, m is 0 to 10, n is 1 to 10, x is 2 to 6, y
Is 3 to 10, z is 0 to 10, A is -H, -C.
_{H 3, -C 2 H 5,} -C 3 H 7, -COCH 3 and -
It represents a group selected from COC ₂ H ₅ . ) Is used.

In the present invention, the actual measurements of ruins and remains are
It is a drawing made by actually measuring the holes, furnaces, food storage places, etc. where the pillars of houses, etc. were made in the old times of the Jomon and Yayoi eras. It is equivalent.

The ruins have passed a long time since they were built, and the remains are weathered, damaged or disappeared due to rainwater / insect damage, wind damage, human livestock damage, bird damage, damage due to drying, etc. . Due to this, the ruins once dug up are sometimes lost forever. It is essential for cultural activities to maintain, restore, and preserve the ruins / remains, which are valuable cultural properties, and to preserve them for eternity. This is the reason why it is necessary to maintain and restore the remains and ruins as in the present invention.

[0013] In the present invention, the soil layer constituting the ruins / remains (partially lost one is formed by bringing the surrounding soil according to the actual measurement map) is once dug up (in this case,
If possible, it is desirable to cut it out as a block with a certain thickness and a certain area so that the soil will not fall apart), and restore it from the bottom according to the actual maps of the ruins and remains. At the time of restoration, a soil layer having a thickness of 1 to 50 cm is formed at the bottom, a polysiloxane-polyoxyalkylene block copolymer aqueous solution is uniformly sprayed on the surface, and the same work as above is performed on it. 1 to the top layer
Repeat leaving a thickness of 50 cm.

One of the major causes of ruin collapse is the repeated drying or moistening of the soil that composes the ruins.
Studies by the present inventors have shown that it is indispensable for a certain amount of water to move from the lower part to the upper part of the archeological site in order to keep it stable. And 1-50c as above
When the aqueous solution of polysiloxane-polyoxyalkylene block copolymer is uniformly sprayed on the surface of the soil layer having a thickness of m, the polysiloxane-polyoxyalkylene block copolymer may be present from the soil surface layer to the inside of the soil layer. It has been found that the copolymer retains a certain amount of soil moisture to prevent drying of the soil, allows excess moisture to permeate, and evaporates from the ground surface to the atmosphere. It has also been found that this copolymer has a gelling effect and a soil agglomerating effect, and thus a function of preventing the collapse of the soil layer.

The polysiloxane-polyoxyalkylene block copolymer which can be used in the present invention includes the following. (1) The following formula (Formula 3):

[Chemical 3] (Wherein, a is 50 to 2000, b is 10 to 500, c is 2 to 6, d is 3 to 500, and e represents 0 to 500, and R is -H, -CH _3, -C ₂ H _5, -C ₃ H
₇ represents a group selected from -COCH ₃ and -COC ₂ H _5. ) (2) The following formula (Formula 4):

[Chemical 4] (In the formula, a'is an integer of 4 or more, b'is an integer of 4 or more,
c'is an integer of 5 or more, R'represents a monovalent hydrocarbon group, and R "represents a monovalent hydrocarbon group.) A linear polysiloxane-polyoxyalkylene block represented by Molecular weight non-hydrolyzable block copolymer.

In the present invention, in the internal structure of the ruins, the operation of treating with an aqueous solution of the polysiloxane-polyoxyalkylene block copolymer from the upper part of each soil layer having a thickness of 1 to 50 cm is repeated by the above-mentioned method, The top layer of soil is treated with an aqueous solution of polyalkylene glycol-added silicone compound.

The polyalkylene glycol-added silicone compound used in the present invention is preferably one represented by the above general formula, for example, the following chemical formula (Chem.
This is represented by Chemical formula 10).

[Chemical 5]

[Chemical 6]

[Chemical 7]

[Chemical 8]

[Chemical 9]

[Chemical 10]

In the present invention, the polyalkylene glycol-added silicone compound mainly plays a role of preventing the generation of mold and moss. The polyalkylene glycol-added silicone compound itself is a known compound, and its use as a surface tension lowering agent has been known so far, but the effect of preventing the generation of mold and moss on the soil surface as in the present invention. Has never been reported, and this property was first discovered in the present invention.

In the present invention, in order to spray the polyalkylene glycol-added silicone compound on the soil surface of the ruins / remains, it is desirable to dissolve the compound in water, alcohols and organic solvents and carry out by air spray method. In addition, it is desirable that this spraying be performed uniformly on the soil surface.
The amount of polyalkylene glycol-added silicone compound applied to the soil surface is 100 to 3000 g / soil surface 1
A ratio of m ² is desirable. If the amount is 100 g / m ² or less, there is no effect of preventing the formation of mold and moss, and 3000 g
Even if the spray amount is increased by more than / m ^{2, the} effect reaches the saturation point and is not economical.

Next, the case where the polyalkylene glycol-added silicone compound and the silicone-based curable composition are used in combination will be described. The use of polyalkylene glycol-added silicone compounds alone prevents the growth of mold and bryophytes, but this is not limited to the case where archaeological sites and archaeological sites are preserved in good condition. , Even if there is a protective building, the water content in the soil is too high or too low, the temperature and humidity of the outside air are too high or too low, and there is a case where wind and rain directly affect it or humans and animals come into direct contact with it. In some cases, these protective films are required. A silicone-based curable composition is used together as the protective film forming agent. Examples of the silicone-based curable composition include the following. Example 1 The following formula: R ¹ _n Si (OR ² ) _4-n (wherein R ¹ represents a methyl group, an ethyl group, an amyl group, a phenyl group or a vinyl group, and R ² represents a methyl group, an ethyl group, a propyl group. Represents a group, a butyl group or an acetyl group, n
Represents an integer of 1 to 3) and at least 1 of organoalkoxysilane or organoacetoxysilane
After dissolving the seed in an acidic or neutral aqueous solution, at least one of lithium silicate and other silicate compounds is added and dissolved in the aqueous solution, and the aqueous solution is adjusted to have an alkaline pH of 11 to 12, A solution prepared by adding an oxide, the details of which are disclosed by the present inventors.
No. 7974. Example 2 0.3 to 30 parts by weight of a crosslinking agent (tetraethyl silicate, tetrapropyl silicate, etc.), a curing catalyst (dibutyl tin laurate) based on 100 parts by weight of a hydroxylated diorganopolysiloxane having two or more hydroxyl groups in the molecule. Of dicarboxylic acid such as dibutyltin diacetate, dibutyltin dioctate, dioctyltin dilaurate, dioctyltin dipalmitate, dioctyltin distearate, tin laurate, tin octylate, iron octylate, lead octylate, tetrabutyl titanate 0.01 to 8 parts by weight of a metal salt, an amine compound such as n-hexylamine or guanidine, or a hydrochloride thereof, etc. is added to the composition.
Water, alcohols, fibers, inorganic powders, oily ingredients and the like may be added. Example 3 Crosslinking agent (hydrogenated diorganopolysiloxane having two or more Si—H groups in the molecule) 20 per 100 parts by weight of vinylated diorganopolysiloxane having two or more vinyl groups in the molecule To 100 parts by weight, and 0.001 to 3 parts by weight of a curing catalyst (chloroplatinic acid, platinum black, platinum asbestos, platinum silica gel, platinum activated carbon, potassium chloroplatinate, etc.) are added. Surfactants, water, alcohols, fibers, inorganic powders, organic solvents, oily components and the like may be added. Examples of surfactants: polyoxyethylene octyl dodecyl alcohol, polyoxyethylene 2-decyl tetradecyl alcohol, polyoxyethylene oleyl alcohol ether, sorbitan monooleate, sorbitan monolaurate, polyoxyethylene sorbitan monooleate, glyceryl monooleate. Oleate, glyceryl monomyristearate, polyoxyethylene glyceryl monooleate, polyoxyethylene dihydrocholesterol ether, polyoxyethylene octylphenol ether, glycerol monoisostearyl ether, polyoxyethylene glycerol monoisostearate, diglyceryl monostearate , Decaglyceryl decasterate; potassium of higher fatty acids such as myristic acid, stearic acid, and oleic acid Beam, sodium, diethanolamine, triethanolamine, salts of amino acids and the like; particularly diorganopolysiloxane - polyoxyalkylene copolymer. Examples of alcohols: ethanol, butanol, ethylene glycol, polyethylene glycol, propylene glycol, 1,3-butylene glycol, 1,4-butylene glycol, dipropylene glycol, polypropylene glycol, glycerin, diglycerin, triglycerin, tetraglycerin, Glucose, maltose, maltose, sucrose, fructose, xylitose, sorbitol and the like. Examples of fibers: microcrystalline cellulose, silk fibroin, fibroin powder, silk, cotton, wool, nylon, polyester, vinylon and other short fibers. Examples of inorganic powders: silicic acid anhydride, magnesium silicate, talc, kaolin, mica, titanium mica, bismuth oxychloride, zirconium oxide, magnesium oxide, zinc oxide, titanium oxide, calcium carbonate, magnesium carbonate,
Yellow iron oxide, Gunjou, carbon black, calamine, etc. Examples of organic solvents: benzene, toluene, xylene, isopropyl alcohol, ethylene glycol acetate, ethylene glycol dimethyl ether, ethylene glycol monobutyl ether, isopropyl acetate, ethyl acetate, butyl acetate, diisopropyl ketone, ethylene glycol diacetate, dimethyl ether and the like. Examples of oily ingredients: beef tallow, squalane, olive oil, evening primrose oil, rice bran oil, hydrocarbons, liquid paraffin, etc.

When the polyalkylene glycol-added silicone compound and the silicone-based curable composition are used in combination in the present invention, even if the polyalkylene glycol-added silicone compound is first sprayed and then the silicone-based curable composition is sprayed. Alternatively, both may be sprayed as a mixed solution, or the silicone-based curable composition may be sprayed first and then the polyalkylene glycol-added silicone compound.

[0022]

EXAMPLES The present invention will now be described based on examples.
The present invention is not limited to these. In addition, all the tests in the following examples were performed by restoring the pillar traces of the pit type dwelling site traces from the Jomon period to the Kofun period located at 4-11-22 Okamura, Isogo-ku, Yokohama.

Example 1 FIG. 1 is a cross-sectional view showing the present state of a pillar mark of a dwelling,
2 is a measured view of the pillar mark shown in FIG. 1, and FIG. 3 is a cross-sectional view of the pillar mark shown in FIG. 1 after maintenance and restoration. In the figure, 1 is soil,
2 is the present pillar trace, 3 is the original pillar trace, 4 is the soil part that is currently disappearing, 5-9 is the restored soil layer (1st to 4th layers and the top layer), 10 is polysiloxane- The polyoxyalkylene block copolymer dispersion layer, and 11 represent the polyalkylene glycol-added silicone compound (or a combination thereof with a silicone-based curable composition).

In the present pillar trace shown in FIG. 1, the disappeared soil portion 4 shown in FIG. 2 is constructed by using the surrounding soil according to the measurement diagram, and then, as shown in FIG. The boundary of each layer was cut so that each layer was a block in the order of the first layer (the thickness of each layer was 10 cm). Then, the first layer 5 was provided, and 10% of the alternating block copolymer synthesized according to the following method (Polymer Synthesis Example 1) was placed on the surface of the first layer 5.
The aqueous solution was sprayed with a hand spray gun so that the amount was 500 g / m ² (polymer conversion). Next, the block of the second layer 6 was placed on the first layer, and the same treatment as the first layer was performed.
This operation was repeated up to the fourth layer 8.

Polymer Synthesis Example 1 In a 500 ml three-necked flask equipped with a mechanical stirrer, condenser, thermometer and nitrogen inlet, dimethallyl polyether [CH ₂ =
C (CH ₃ ) CH ₂ O (C ₂ H ₄ O) ₁₈ (C ₃ H ₆ O)
₃₃ CH ₂ C (CH ₃ ) = CH ₂ ] 100 g, toluene 3
50 g, 20 ppm Pt in the form of chloroplatinic acid were added. Dihydropolydimethylsiloxane [HMe ₂ was added to the mixture at such a rate as to maintain the temperature at 80 to 100 ° C.
109 g of SiO (MeSiO) ₄₀ SiMe ₂ H] was gradually added. The end of this reaction is AgNO to SiH.
_{3 The} test was judged to be negative. The reaction mixture was then neutralized with NaHCO ₃ , filtered and the solvent was removed on a rotary evaporator at 50 ° C./1 mmHg, then the following formula: — [(MeSiO) ₄₀ Me ₂ SiCH ₂ CH (CH ₃ ) CH ₂ O ( It was obtained alternating block copolymer 203g of molecular weight 52000 with repeat unit _{- C 2 H 4 O) 18} (C 3 H 6 O) 33 CH 2 CH (CH 3) CH 2 ] _16.1.

Next, the moss growing on the surface of the uppermost layer of the remains is carefully removed so as not to damage the surface of the remains,
The surface of the remains is cleaned with a soft brush to expose the fresh surface, and the following formula (Formula 11) is applied to the surface of the remains and the entire top layer:

[Chemical 11] A polyalkylene glycol-added silicone compound represented by the following was prepared as a 10% aqueous solution, and was sprayed with a hand spray gun so as to have a concentration of 500 g / m ² .

Evaluation The ruins were maintained and restored by the above method, but after 2 years, no change in color or structure of each layer was observed, and no moss or mold was found on the surface layer.

Comparative Example 1 The same test as in Example 1 was carried out without using the polysiloxane-polyoxyalkylene block copolymer and the polyalkylene glycol-added silicone compound used in the present invention.

Evaluation A color change appeared at the boundary of each soil layer, the soil collapsed from the side surface (exposed on the surface) of each soil layer, and the original shape of the ruins collapsed. In addition, moss and mold were found on the side of the uppermost layer and each soil layer one month after the start of the experiment.

Example 2 To 78 parts of water, 4 parts of methyltrimethoxysilane was slowly added with stirring, and when the aqueous solution became uniform and transparent, 12 parts of lithium silicate and 2 parts of sodium silicate were added and uniformly added. Stir until it becomes dry, then p with sodium hydroxide.
The H was adjusted to 12. Furthermore, 2 parts of aluminum oxide is added to form a uniform transparent liquid (silicone-based curable composition).
Got On the other hand, the same operation as in Example 1 was carried out except for the treatment of the uppermost layer, and then a polyalkylene glycol-added silicone compound was sprayed on the surface of the remains in the same manner as in Example 1 and the above transparent liquid was added at 1000 ml / m 2. Sprayed at a rate of ² .

Evaluation After 2 years, no moss or mold was found on the surface of the remains, and no influence of rainfall, wind, etc. was found.
Further, the shrinkage of the protective film did not damage the surface of the remains.

Example 3 Hydroxylated dimethyl polysiloxane (molecular weight 300
00) 40 parts by weight, polyethylene glycol (molecular weight 4
000) 5 parts by weight, stearic acid 2 parts by weight, polyoxyethylene sorbitan stearate 3 parts by weight, water 200 parts by weight, tetraethyl silicate 5 parts by weight, dibutyltin dilaurate 0.7 parts by weight, and further mixed by the following formula: 12):

[Chemical 12] 40 parts by weight of the compound represented by the formula (1) were added and mixed by stirring to prepare a treatment liquid (a mixed liquid of a polyalkylene glycol-added silicone compound and a silicone-based curable composition). After operating exactly as in Example 1 except for treating the top layer,
The above treatment liquid was applied to the surface of the remains 300 times in the same manner as in Example 1.
It was sprayed at a rate of 0 ml / m ² .

Evaluation After 2 years, no moss or mold was found on the surface of the remains, and no influence of rain, wind, etc. was found.
Further, the shrinkage of the protective film did not damage the surface of the remains.

Example 4 Vinylated dimethyl polysiloxane (molecular weight 20000)
30 parts by weight, polyoxyethylene octyldodecyl alcohol 6 parts by weight, glycerin monostearate 3 parts by weight, water 100 parts by weight, glycerin 3 parts by weight, hydrogenated dimethylpolysiloxane (molecular weight 8000) 15 parts by weight, platinum silica gel 0.6 By weight, 5 parts by weight of petrolatum were mixed by stirring to obtain a treatment liquid (silicone-based curable composition). On the other hand, after the same operation as in Example 1 except for the treatment of the uppermost layer, the following formula (Chemical Formula 1) was applied to the surface of the remains in the same manner as in Example 1.
3):

[Chemical 13] After the compound represented by the formula (1) was sprayed at a rate of 1500 g / m ² , the treatment solution was sprayed at a rate of 500 ml / m ² .

Evaluation After 2 years, no moss or mold was found on the surface of the remains, and no influence of rainfall or wind was found.
Further, the shrinkage of the protective film did not damage the surface of the remains.

Example 5 Exactly the same as Example 1 except that the polymer synthesis example 1 used in Example 1 was replaced by a polysiloxane-polyoxyalkylene block copolymer produced according to the following polymer synthesis example 2. The same operation as in Example 1 was obtained when the above operation was performed.

Polymer Synthesis Example 2 Hydroxyl Group Containing
Dimethyl polysiloxane [Me₃SiO (MeSi
₂O) ₁₀₀(SiMeHO)₁₃SiMe₃] 27g
Ryl polyether [CH₂= CHCH₂O (C₂H
_FourO)₁₈(C₃H₆O)₂₀CH₃] 94 g, toluene 3
30 g, and 20 ppm of Pt as a platinum-based addition catalyst
Using the same operation as in Synthesis Example 1, the following formula (Formula 14):

[Chemical 14] Block copolymer 120 having a molecular weight of 35,000 represented by
g was obtained.

[0038]

As described in detail above, the present invention is
The soil of the ruins / remains is divided into blocks as multiple layers, and the surface of each layer except the top layer is treated with an aqueous solution of polysiloxane-polyoxyalkylene block copolymer, so there is no change in the color of the ruins / remains. , Reconstructed and restored without the collapse of the remains due to dryness, wetness, etc.
Furthermore, since the uppermost layer is treated with an aqueous solution of a polyalkylene glycol-added silicone compound, which is harmless to the human body, the occurrence of moss and mold is prevented. As described above, the present invention provides a method for maintaining, restoring, and preserving ruins / remains, which until now had no suitable means.

Further, by using the above-mentioned silicone compound in combination with the silicone-based curable composition, the retaining effect of the silicone compound is enhanced and the moss / mold prevention effect is maintained for a long period of time. The invention also makes it possible to protect the surface from physical and chemical effects. Moreover, the surface of the ruins / remains is not damaged by the expansion and contraction of the protective film itself by the silicone-based curable composition. Therefore, the present invention makes it possible to carry out the maintenance and restoration and preservation of the ruins / remains in a better condition as compared with the conventional method and for a long period of time.

[Brief description of drawings]

FIG. 1 is a cross-sectional view showing a current state of a pillar mark of a residence mark.

FIG. 2 is an actual measurement diagram of a pillar mark shown in FIG.

FIG. 3 is a cross-sectional view after maintenance and restoration of the pillar mark shown in FIG.

[Explanation of symbols]

1 Soil 2 Present Pillar Mark 3 Original Pillar Mark 4 Soil portion that is currently disappearing 5-9 Restored soil layer (1st to 4th layers and top layer) 10 Polysiloxane-polyoxyalkylene block copolymer Dispersion layer of 11 Polyalkylene glycol-added silicone compound (or combination thereof with silicone-based curable composition)
Scatter layer

Claims (3)

[Claims] 1. A method of repairing and reconstructing deteriorated ruins / remains according to an actual measurement map, and further preserving them as they are, in which the soil layers and the like constituting the remnants / remains are from the bottom, and the first layer is 1 to 50 cm thick. In addition, reconstructing according to the actual measurement diagram, the solution of polysiloxane-polyoxyalkylene block copolymer is evenly sprayed on the surface, and the same work as above is performed on it from the top layer of the original shape of the ruins / remains 1 ~ 50c
Repeated up to m down, reconstructing the soil top layer with a thickness of 1 to 50 cm, and spraying the solution of the polyalkylene glycol-added silicone compound evenly on the surface. Preservation method. 2. The method for maintenance / restoration / preservation of ruins / remains according to claim 1, wherein a polyalkylene glycol-added silicone compound and a silicone-based curable composition are used in combination. 3. A polyalkylene glycol-added silicone compound represented by the following formula (Formula 1): (In the formula, m is 0 to 10, n is 1 to 10, x is 2 to 6, y
Is 3 to 10, z is 0 to 10, A is -H, -C.
_{H 3, -C 2 H 5,} -C 3 H 7, -COCH 3 and -
It represents a group selected from COC ₂ H ₅ . The method for maintaining, restoring and preserving ruins and remains according to claim 1 or 2, wherein the compound represented by the formula (4) is used.