JP2001311234A - High flow fire resistive coating material and fire resistive coating method making use thereof - Google Patents

High flow fire resistive coating material and fire resistive coating method making use thereof

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Publication number
JP2001311234A
JP2001311234A JP2000130479A JP2000130479A JP2001311234A JP 2001311234 A JP2001311234 A JP 2001311234A JP 2000130479 A JP2000130479 A JP 2000130479A JP 2000130479 A JP2000130479 A JP 2000130479A JP 2001311234 A JP2001311234 A JP 2001311234A
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JP
Japan
Prior art keywords
fire
refractory coating
coating
resistant coating
foam
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Pending
Application number
JP2000130479A
Other languages
Japanese (ja)
Inventor
Koji Nishimuta
Hirotsugu Tashiro
裕嗣 田代
幸治 西牟田
Original Assignee
Asano:Kk
Taiheiyo Cement Corp
太平洋セメント株式会社
株式会社アサノ
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Application filed by Asano:Kk, Taiheiyo Cement Corp, 太平洋セメント株式会社, 株式会社アサノ filed Critical Asano:Kk
Priority to JP2000130479A priority Critical patent/JP2001311234A/en
Publication of JP2001311234A publication Critical patent/JP2001311234A/en
Pending legal-status Critical Current

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Abstract

(57) [Summary] [Problem] To obtain fire resistance performance equal to or higher than that of a fire-resistant coating by a conventional spraying method and to be integrated with an object to be coated, excellent workability, uniform thickness without soiling the site. The present invention provides an economical refractory coating material and a refractory coating method, which can provide a refractory coating having a smooth surface with no waste of material. SOLUTION: A formwork 5 is assembled around a steel frame 1, a refractory coating material having high fluidity developed for the present method is injected into the formwork 5, and a refractory coating layer is formed by curing. The refractory coating material is made by adding water to a premix material mainly composed of an inorganic lightweight aggregate such as vermiculite foam or perlite, a hydraulic binder such as various cements and an admixture, and from immediately after kneading until injection. The flowability of the J funnel with respect to the fluidity in step 4 is about 4 to 30 seconds.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a high-flow refractory coating material that can be injected into a formwork on site and a refractory coating method using such a high-flow refractory coating material.

[0002]

2. Description of the Related Art Conventionally, a construction procedure in a spraying method, which is the most common method as a refractory coating method, is generally as follows (see FIG. 2). A predetermined amount of water is added to the material, and the mixture is kneaded by the mixer 2. The kneaded material is transferred to the hopper 3. The pump 4 feeds the spray gun 11 under pressure. The compressed air is sent from the air compressor 12 to the spray gun 11. The material is sprayed from the spray gun 11 onto the steel frame 1 or the like, which is the spray target, with compressed air.

[0003] In the case of the spraying method, a material having a high viscosity is generally used as a refractory coating material in order to enhance adhesion and prevent sagging.

[0004] As a refractory coating method other than the spraying method,
There is a dry sticking method in which an asbestos calcium silicate plate or an asbestos rock wool plate is stuck to a fire-resistant covering object such as a steel frame.

Japanese Patent Application Laid-Open Nos. 54-73415 and 3-66862 disclose a thin surface material mainly composed of cement, inorganic fiber, or the like, or a metal plate used as a mold frame and surface finishing material. A method is described in which a refractory material slurry such as cellular concrete, foamed gypsum, wet asbestos, or the like is filled between a steel member and a hardened member, and then cured.

[0006]

Problems with the prior art refractory coating by the spraying method have the following problems. It is difficult to spray a refractory coating to a uniform thickness. The fire-resistant coating material sprayed under the beam or the like easily falls, and special technology is required to prevent the falling. Since the spray loss of the refractory coating material is as large as about 10%, it is economically disadvantageous. The working environment is poor due to scattering or dripping of the sprayed material. After spraying, it is necessary to check the thickness and finish the iron. Unevenness on the surface is unavoidable, and the finished product does not look good.

[0007] On the other hand, in the case of a dry-type laminating method in which a plate-like refractory covering material is adhered, labor is required for the on-site laminating work, and it is difficult to secure and integrate with a refractory covering object such as a steel frame. is there.

Further, when a fire-resistant coating material is applied in advance at a factory, the burden of assembling the fire-resistant coating object on site, such as a steel frame to which the fire-resistant coating material is attached, becomes large.
There is a problem of cracking of the refractory coating material during transportation and peeling due to vibration and the like.

Further, the inventions described in JP-A-54-73415 and JP-A-3-66862 include a refractory covering material which is a mold frame / surface finishing material and a cement-based hardening material which is filled inside. Although it is composed of a refractory slurry and the like, the refractory coating layer itself is composed of two layers of different materials. Yes, it is expensive.

[0010] From the above, it is a fact that most of the refractory coating works are performed by the spraying method while having various disadvantages.

The present invention has been developed in view of the above-mentioned background, and provides fire resistance performance equal to or higher than that of a conventional fire-resistant coating by a spraying method and integrity with respect to an object to be coated. Excellent workability, no special skills required, less contamination on site, good environment, fireproof coating with uniform thickness and smooth surface, no waste of materials, economical construction It is an object of the present invention to provide a refractory coating material and a refractory coating method capable of performing the method.

[0012]

According to a first aspect of the present invention, there is provided a fire-resistant coating method, wherein a form is assembled while leaving a required space corresponding to a coating thickness at a portion to be coated with a fire-resistant coating object.
Into the space, a premix material mainly composed of an inorganic lightweight aggregate, a hydraulic binder and an admixture is injected with a refractory coating material having high fluidity obtained by adding water, and after curing, demolded to form a refractory coating. The surface of the object is coated with the refractory coating material.

The first feature of the present invention is that, instead of the spraying method, a formwork is assembled around an object to be coated with fireproof, and the fireproof coating material having high fluidity developed for the present method is used in the formwork. To form a refractory coating layer by curing.

By using a mold, it is possible to form a fire-resistant coating layer having a predetermined thickness and a smooth surface, and there is no problem of scattering or dripping of the material unlike the spraying method. It is also economical because it is not available.

As an index of high liquidity, for example,
As described in the invention according to the above, it is desirable that the J funnel falling time regarding the fluidity before the injection of the refractory coating material is 4 to 30 seconds.

In the case of a material having a very high fluidity such as a J funnel falling time of less than 4 seconds, it is difficult to obtain sufficient strength and adhesion performance as a refractory coating material, and problems such as material separation are likely to occur. On the other hand, when the J funnel flow time is longer than 30 seconds, the flowability is insufficient, so that clogging occurs and the narrow gap between the refractory coating object and the formwork can be spread to every corner. Difficult and can cause defects in the refractory coating.

The material for the refractory coating in the conventional spraying method is to increase the amount of the hydraulic binder, use a material having viscosity in the hydraulic binder or the admixture, or reduce the amount of the thickener. It is necessary to increase the viscosity to some extent, for example, by increasing the number, and it is common that the viscosity is not measured by the J funnel falling time.

When the material used in the spraying method is pressure-fed to a spraying gun by a pump or the like, the flowability is low. Therefore, the flow rate is usually limited to about 100 m. In the case of the refractory coating material described above, for example, 2
The pumping of about 00 m is also possible, and when the pumping distance is short, the pumping with a lower pump pressure becomes possible as compared with the spraying method.

In addition, although it does not necessarily correspond to the J funnel falling time, the flow value obtained by the flow test is about 140 mm for the material for the conventional spraying method, whereas it is about 19 mm.
Those having a fluidity of about 0 to 250 mm are considered to be more preferable ranges.

In order to impart such fluidity, inorganic light-weight aggregates and, if necessary, hydraulic binders whose particle size has been adjusted, high-performance water reducing agents, high-performance AE water reducing agents, and the like can be used. It is conceivable to use an appropriate amount of the admixture.

However, after curing, it is necessary to integrate it with the object to be coated such as a steel frame as a fire-resistant coating layer so that it does not peel or crack, and the fire resistance is equal to or higher than that of the spraying method. Is desired.

For this purpose, the hydraulic binder is made of a material mainly composed of one or more materials selected from various cements, gypsums and blast furnace slags, and a vermiculite foam as an inorganic lightweight aggregate. body,
It is desirable to use one mainly composed of one or more materials selected from pearlite, shirasu balloon, foamed glass beads, clay-based foam, fly ash-based foam, and zeolite. Claim 3 restricts these as inorganic lightweight aggregates. Also, as for these inorganic lightweight aggregates, it is preferable to use those having a small particle diameter in order to have high fluidity as described above.

In particular, from the viewpoint of fire resistance and strength, it is desirable to increase the ratio of the inorganic lightweight aggregate to the hydraulic binder in the composition.

The form is not particularly limited, and the same form as that used in conventional concrete works can be used. In order to enhance the smoothness of the surface of the covering material, use of a mold made of metal or synthetic resin is conceivable.

According to a fourth aspect of the present invention, in the refractory coating method according to the first, second or third aspect, the corner portions of the object to be refractory coated and other portions having a complicated shape are partially defined by the first and second aspects.
This is a case where a fire-resistant coating method other than the fire-resistant coating method according to 2 or 3 is used in combination, such as a spraying method or a sticking method.

In the present invention, basically, the refractory coating material is injected and filled by using a mold, and the construction is performed while diverting the mold. When the cross-sectional shape of the object is complicated, if you try to perform all the work using the formwork, the work may be rather complicated, and in such a case, the conventional spraying method and fireproof function are partially provided The work efficiency can be increased by using the plate material attaching method together.

[0027] The high-flowability refractory coating material according to claim 5 comprises 20 to 60% by weight of an inorganic lightweight aggregate and a hydraulic binder 10%.
A required amount of water is added to a premix material mainly containing 〜50% by weight and an admixture material of 10 to 30% by weight.
It is set to 0 seconds.

The high-flowability refractory coating material of the present invention is prepared by previously mixing an inorganic lightweight aggregate, a hydraulic binder, and an admixture as a premix material. In order to secure the strength and fire resistance performance of the fire-resistant coating layer, inorganic light-weight aggregates are used for the reasons described above, and the amount of hydraulic binder is 10 to 50 wt. %.

Depending on the type and composition of the inorganic lightweight aggregate and the admixture, if the amount of the hydraulic binder is less than 10% by weight, the binder is hardened to a sufficient strength and has sufficient adhesion performance. When the amount of the hydraulic binder is more than 50% by weight, it is difficult to have high fluidity in relation to the inorganic lightweight aggregate. Further, drying shrinkage becomes large, and cracks are easily generated.

[0030] The inorganic lightweight aggregate is mainly considered to have a small particle size.
It is difficult to increase the fluidity after having the necessary strength and fire resistance as a fire-resistant coating material, and the bulk specific gravity tends to be large. If the amount is more than 60% by weight, it becomes difficult to obtain sufficient adhesion performance and strength and the material is liable to be separated due to the amount of the hydraulic binder and the admixture.

The admixture has a meaning of a filler material as a refractory material, a meaning of an auxiliary material in terms of fire resistance performance, and a meaning of crack prevention such as fiber reinforcement. About 10 to 30% by weight is considered to be a suitable range, and if it is more than that, there is a possibility that a problem may occur in terms of strength and non-adhesion performance. 10% by weight
If the number is smaller, workability may be reduced.

According to a sixth aspect of the present invention, in the high fluidity refractory coating material according to the fifth aspect, the inorganic lightweight aggregate is made of vermiculite foam, perlite, shirasu balloon, foamed glass beads, clay-based foam, fly ash foam. , One or more materials selected from zeolites, the hydraulic binder is various cement, gypsum,
One or more materials selected from blast furnace slag, wherein the admixture is calcium carbonate, aluminum hydroxide, short glass fiber, mica, rock wool,
The case is limited to a case where one or more materials selected from inorganic materials having no hydraulic property such as serpentine, talc, and sepiolite are mainly used.

The reasons for these limitations are as described in the refractory coating method according to claims 1 to 3, and by using these, the amount of water required for hardening the hydraulic binder while providing high fluidity. And a high quality refractory coating layer can be formed.

According to a seventh aspect of the present invention, in the high-flowability refractory coating material according to the sixth aspect, the high-flowability refractory coating material contains an admixture such as a high-performance water reducing agent, a high-performance AE water reducing agent, or a thickener. It is limited to the case in which

The high-performance water reducing agent and the high-performance AE water reducing agent have a function of providing high fluidity while reducing the amount of water, and the thickener is mainly used for improving the adhesion performance to the fire-resistant coating object.

In addition, as an index relating to the performance of the fire-resistant coating material, the fire resistance when applied to columns and beams is 1 to 3 hours.
Adhesive strength to fireproof coating object is 0.7 × 10 −1 or more
1.5 × 10 −1 N / mm 2 , curing time of the refractory coating material injected into the mold is 5 to 24 hours, bulk specific gravity 400 to 900 k
g / m 3 , thermal conductivity 0.04-0.2 W / (mK), compressive strength 0.8-1.0 N / mm 2 , pH 12-12.
A range of about 5 (alkaline) is desirable.

The reason why the curing time of the refractory coating material is 5 to 24 hours is to take into account the conversion of the formwork. If necessary, the use of early-strength cement or ultra-high-strength cement may be considered.

[0038]

FIG. 1 schematically shows an embodiment of a refractory coating method using a refractory coating material having high fluidity according to the present invention.

As a work procedure at the site, a predetermined amount of water is added to the premix material mainly composed of the inorganic lightweight aggregate, the hydraulic binder and the admixture described in the section of the means for solving the problem, and the mixer 1 is used. Knead with. The kneaded refractory coating material is transferred to a hopper 2 and pumped by a pump 3.

A steel frame 1 (in this example, H
Formwork 5 is assembled around the section of the steel column at intervals according to the thickness of the refractory coating, and the material pumped by the pump 3 is fed through the injection port 6 below the formwork 5. Inject into frame 5,
The refractory coating material is filled between the surface of the steel frame 1 and the inner surface of the mold 5. In the figure, reference numeral 7 denotes an air vent.

As described above, the refractory coating material has a high fluidity, and the filling of the mold 5 can be confirmed by overflowing the refractory coating material injected from the air vent 7. In this state, the curing of the refractory coating material is waited, and after the mold is released, the mold 5 is diverted to the next operation.

The material composition (premix material) of the refractory coating material used in the refractory coating method was 41% by weight of a hydraulic binder (Portland cement), 44% by weight of an inorganic lightweight aggregate (vermiculite + pearlite), and an admixture ( 14% by weight of calcium carbonate) and 1% by weight of a thickener (methylcellulose). To 100 parts by weight of this premix material, 170 parts by weight of kneading water were added and kneaded.

Even when the material used in the conventional spraying method is pumped into a spray gun by a pump or the like, the flowability is low. Therefore, the material is usually limited to about 100 m. In the case of a refractory coating material with a time of 4 to 30 seconds, for example, pumping of about 200 m is possible, and when the pumping distance is short, pumping with a lower pump pressure is possible as compared with the spraying method. Become.

In addition, although it does not necessarily correspond to the J funnel falling time, the flow value obtained by the flow test indicates that the material for the conventional spraying method is about 140 mm, whereas the flow value is about 140 mm.
Those having a fluidity of about 0 to 250 mm are considered to be more preferable ranges.

In the case of the above embodiment, the J funnel flow time was 23 seconds (the flow value by the flow test was 230 m
m) and at a pumping pressure of 75 kg / cm 2 ,
m could be pumped. In addition, it was possible to discharge 30 kg / min from the standard discharge rate of 20 kg / min in the conventional spraying.

Table 1 summarizes the composition and test results of representative examples of samples used in tests for confirming the effects of the high flow refractory coating material of the present invention.

As the cement in Table 1, Portland cement was manufactured by Taiheiyo Cement Co., Ltd., and alumina cement was manufactured by Asano Co., Ltd. As an inorganic lightweight aggregate, vermiculite is manufactured by Nissho Iwai Corporation.
Perlite used was made by Asano Corporation. Calcium carbonate used as the admixture was manufactured by Taiheiyo Cement Co., Ltd., and as a thickener, high-metroose manufactured by Shin-Etsu Chemical Co., Ltd. and a high performance attenuator manufactured by Taiheiyo Cement Co., Ltd. were used. In addition, tap water was used as water.

Of samples 1 to 11, samples 2, 4, 6,
Samples 8 and 9 correspond to the test example of claim 5 of the present application.
3, 5, 7, 10, and 11 correspond to test examples.

[0049]

[Table 1] In Sample 1, the weight of the inorganic lightweight aggregate (vermiculite) in the premix material was 20% by weight, which was the lower limit specified in claim 5, and the hydraulic binder was 63% by weight.
Is out of the range defined in claim 5.

In this case, the J funnel flow time is relatively long at 30 seconds, and there are some problems in fire resistance and cracking properties, and there is a drawback that bulk specific gravity becomes large. Although it can be applied to the fire-resistant coating method of the present invention, it is not necessarily in a preferable range.

On the other hand, in Sample 2, the inorganic lightweight aggregate (vermiculite) is 43% by weight, the hydraulic binder is 40% by weight, and the flow time of the admixture and the J funnel is also defined in claim 5. Meets requirements.

Further, it is excellent in workability (particularly pumpability), fire resistance and general physical properties, and can be said to be suitable for the fire-resistant coating method of the present invention.

Sample 3 was made of 65% by weight of inorganic lightweight aggregate (vermiculite) and 18% by weight of hydraulic binder in the premix material. The flowability of the sample was so low that it was impossible to measure the J funnel flow time. There is no problem in terms of fire resistance and cracking, but it is not suitable for the fire-resistant coating method of the present invention.

The premix material in sample 4 was sample 2
It is equivalent to a part of vermiculite of inorganic lightweight aggregate of which is replaced with perlite. Even if the mixing water amount is slightly reduced, the J funnel flow down time is as short as 23 seconds, and it is suitable for the fire-resistant coating method of the present invention in terms of various performances. Results were obtained.

Sample 5 corresponds to the one obtained by replacing Portland cement in Sample 1 with alumina cement.
The result is almost the same as that of the sample 1, which is also applicable to the refractory coating method of the present invention, but is not necessarily in a preferable range.

Sample 6 corresponds to a sample obtained by replacing Portland cement in Sample 2 with alumina cement.
Approximately the same result was obtained, and the J funnel flow-down time was slightly longer at 28 seconds, but the adhesive strength was slightly improved.

Sample 7 corresponds to a sample obtained by replacing Portland cement in Sample 3 with alumina cement. However, like Sample 3, it is not suitable for the refractory coating method of the present invention.

Sample 8 corresponds to the one obtained by replacing Portland cement in Sample 4 with alumina cement.
Almost the same results were obtained, and although the adhesive strength was slightly improved, the thermal conductivity was slightly higher, but the results suitable for the refractory coating method of the present invention were obtained.

Sample 9 was obtained by replacing the pearlite in Sample 8 with mica or the like, but gave substantially the same results, and is considered to be suitable for the refractory coating method of the present invention.

In Samples 10 and 11, the amount of the inorganic lightweight aggregate in the premix material was greatly increased and the amount of the hydraulic binder was decreased. Even if the amount of water was increased, the required fluidity could not be obtained. It was impossible to measure the J funnel falling time, and it was inferior not only in workability but also in fire resistance and cracking properties, and it was found that it was not suitable for the fire-resistant coating method of the present invention.

[0061]

According to the fire-resistant coating material and the fire-resistant coating method of the present invention, fire resistance performance equal to or higher than that of the fire-resistant coating by the conventional spraying method and the integration with the object to be coated can be obtained. Compared to the workability, it does not require special skills, does not pollute the site due to scattering of fire-resistant coating material, dripping, etc., in a good environment, a fire-resistant coating having a uniform thickness and a smooth surface can be obtained. .

Further, since the refractory coating material is injected into the mold and does not scatter, the material is not wasteful and is economical.

Since the refractory coating material has a high fluidity, it can be pumped over a long distance by a pump or the like as compared with a material for a conventional spraying method, and when the pumping distance is short, a smaller pump can be used. I can deal with it.

[0064] The load on the on-site work, such as the conventional sticking method, is small, and the cost of the refractory coating material is lower than that of the method using a disposable formwork, and it is advantageous in terms of integration with the object to be coated. Therefore, problems such as peeling are unlikely to occur.

[Brief description of the drawings]

FIG. 1 shows an embodiment of a refractory coating method using a refractory coating material having high fluidity according to the present invention, wherein (a) is an overall schematic view and (b) is an AA cross-sectional view thereof. It is.

FIG. 2 is a schematic view of a conventional fireproof coating method by a spraying method.

[Explanation of symbols]

1 ... steel frame, 2 ... mixer, 3 ... hopper, 4 ... pump,
5 ... mold, 6 ... injection port, 7 ... air vent, 11 ... spray gun, 12 ... air compressor

 ────────────────────────────────────────────────── ─── Continued on the front page (72) Inventor Yuji Tashiro 3-8-1, Nishikanda, Chiyoda-ku, Tokyo Asanouchi F-term (reference) 2E001 DE01 EA05 FA01 FA02 HA01 HA03 HA22 HA28 HA32 HA33 HE10 JA01 JA02 JA12 JA13 JA14 JA22 JA25 KA01 LA00

Claims (7)

[Claims]
1. A formwork is assembled by leaving a required space corresponding to a coating thickness at a portion of a fire-resistant coating object to be coated, and the space is mainly composed of an inorganic lightweight aggregate, a hydraulic binder, and an admixture. A fire-resistant coating method in which a high-flowability fire-resistant coating material obtained by adding water is poured into the premixed material, and after curing, the mold is released and the surface of the fire-resistant coating material is coated with the fire-resistant coating material.
2. The refractory coating method according to claim 1, wherein the flow rate of the J funnel relating to the flowability of the refractory coating material before injection is 4 to 30 seconds.
3. The inorganic lightweight aggregate mainly comprises one or a plurality of materials selected from vermiculite foam, perlite, shirasu balloon, foam glass beads, clay-based foam, fly ash-based foam, and zeolite. The refractory coating method according to claim 1 or 2, wherein the coating is performed.
4. A fire-resistant coating method in which a fire-resistant coating method other than the fire-resistant coating method according to claim 1, 2 or 3 is partially applied to a corner portion or a portion having a complicated shape of the fire-resistant coating object.
5. A required amount of water is added to a premix material mainly composed of 20 to 60% by weight of an inorganic lightweight aggregate, 10 to 50% by weight of a hydraulic binder, and 10 to 30% by weight of an admixture. A highly fluid refractory coating material having a J funnel falling time of 4 to 30 seconds from immediately after kneading until injection.
6. The inorganic lightweight aggregate is mainly composed of one or more materials selected from vermiculite foam, perlite, shirasu balloon, foam glass beads, clay-based foam, fly ash foam, and zeolite. Wherein the hydraulic binder is mainly composed of one or more materials selected from various types of cement, gypsum, and blast furnace slag, and the admixture is calcium carbonate, aluminum hydroxide, short glass fiber, mica, and rock. The high-flowability refractory coating material according to claim 5, which is mainly composed of one or more materials selected from inorganic materials having no hydraulic property, such as wool, serpentine, talc, and sepiolite.
7. The high-flow refractory coating material according to claim 6, wherein the high-flow refractory coating material contains an admixture such as a high-performance water reducing agent, a high-performance AE water reducing agent, and a thickener.
JP2000130479A 2000-04-28 2000-04-28 High flow fire resistive coating material and fire resistive coating method making use thereof Pending JP2001311234A (en)

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Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2010126961A (en) * 2008-11-27 2010-06-10 Nichias Corp Construction method of inorganic hollow body composition
KR101016156B1 (en) * 2010-08-20 2011-02-17 (주)이알테크 Fire protecting method of concrete structures using high heat resistant mortar
WO2013109058A1 (en) * 2012-01-17 2013-07-25 Jung Moon-Hyoung Method for constructing building made of dried soil and temporary frame used in same
CN104040084A (en) * 2012-01-17 2014-09-10 郑文炯 Method for constructing building made of dried soil and temporary frame used in same
CN108978902A (en) * 2018-09-03 2018-12-11 李伟苗 Insulated fire formed steel construction

Cited By (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2010126961A (en) * 2008-11-27 2010-06-10 Nichias Corp Construction method of inorganic hollow body composition
KR101016156B1 (en) * 2010-08-20 2011-02-17 (주)이알테크 Fire protecting method of concrete structures using high heat resistant mortar
WO2013109058A1 (en) * 2012-01-17 2013-07-25 Jung Moon-Hyoung Method for constructing building made of dried soil and temporary frame used in same
CN104040084A (en) * 2012-01-17 2014-09-10 郑文炯 Method for constructing building made of dried soil and temporary frame used in same
KR101454276B1 (en) * 2012-01-17 2014-10-23 정문형 method for constructing soil structure
JP2015508464A (en) * 2012-01-17 2015-03-19 ジュン、ムン−ヒョン Method for constructing soil structure and temporary formwork used therefor
US9187915B2 (en) 2012-01-17 2015-11-17 Moon-Hyoung Jung Method for constructing building made of dried soil and temporary frame used in same
CN104040084B (en) * 2012-01-17 2018-12-21 郑文炯 The temporary mold for building method and its use of native structure
CN108978902A (en) * 2018-09-03 2018-12-11 李伟苗 Insulated fire formed steel construction

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