JPH01298086A - Production of decorative fiber cement sheet - Google Patents
Production of decorative fiber cement sheetInfo
- Publication number
- JPH01298086A JPH01298086A JP12799288A JP12799288A JPH01298086A JP H01298086 A JPH01298086 A JP H01298086A JP 12799288 A JP12799288 A JP 12799288A JP 12799288 A JP12799288 A JP 12799288A JP H01298086 A JPH01298086 A JP H01298086A
- Authority
- JP
- Japan
- Prior art keywords
- sheet
- asbestos
- fiber cement
- curing
- decorative
- 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.)
- Granted
Links
- 239000000835 fiber Substances 0.000 title claims abstract description 32
- 239000004568 cement Substances 0.000 title claims abstract description 26
- 238000004519 manufacturing process Methods 0.000 title claims description 6
- 239000011347 resin Substances 0.000 claims abstract description 25
- 229920005989 resin Polymers 0.000 claims abstract description 25
- 239000000839 emulsion Substances 0.000 claims abstract description 24
- BLRPTPMANUNPDV-UHFFFAOYSA-N Silane Chemical group [SiH4] BLRPTPMANUNPDV-UHFFFAOYSA-N 0.000 claims abstract description 6
- 125000003700 epoxy group Chemical group 0.000 claims abstract description 6
- 238000013007 heat curing Methods 0.000 claims abstract description 4
- 239000000758 substrate Substances 0.000 claims description 26
- 239000002002 slurry Substances 0.000 claims description 5
- 239000010425 asbestos Substances 0.000 abstract description 27
- 229910052895 riebeckite Inorganic materials 0.000 abstract description 27
- 239000011248 coating agent Substances 0.000 abstract description 18
- 238000000576 coating method Methods 0.000 abstract description 18
- 238000000034 method Methods 0.000 abstract description 14
- 238000001723 curing Methods 0.000 abstract description 12
- VYPSYNLAJGMNEJ-UHFFFAOYSA-N Silicium dioxide Chemical compound O=[Si]=O VYPSYNLAJGMNEJ-UHFFFAOYSA-N 0.000 abstract description 4
- 229920002978 Vinylon Polymers 0.000 abstract description 4
- -1 acryl Chemical group 0.000 abstract description 3
- 239000000377 silicon dioxide Substances 0.000 abstract description 2
- 239000002893 slag Substances 0.000 abstract description 2
- 239000002994 raw material Substances 0.000 abstract 2
- 230000001070 adhesive effect Effects 0.000 abstract 1
- 230000015572 biosynthetic process Effects 0.000 abstract 1
- 239000003973 paint Substances 0.000 description 9
- NIXOWILDQLNWCW-UHFFFAOYSA-N acrylic acid group Chemical group C(C=C)(=O)O NIXOWILDQLNWCW-UHFFFAOYSA-N 0.000 description 5
- 230000000052 comparative effect Effects 0.000 description 4
- 239000000203 mixture Substances 0.000 description 4
- 125000000129 anionic group Chemical group 0.000 description 3
- 125000002091 cationic group Chemical group 0.000 description 3
- 239000000463 material Substances 0.000 description 3
- 239000007921 spray Substances 0.000 description 3
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 3
- VTYYLEPIZMXCLO-UHFFFAOYSA-L Calcium carbonate Chemical compound [Ca+2].[O-]C([O-])=O VTYYLEPIZMXCLO-UHFFFAOYSA-L 0.000 description 2
- 239000004743 Polypropylene Substances 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 229920001155 polypropylene Polymers 0.000 description 2
- GOXQRTZXKQZDDN-UHFFFAOYSA-N 2-Ethylhexyl acrylate Chemical compound CCCCC(CC)COC(=O)C=C GOXQRTZXKQZDDN-UHFFFAOYSA-N 0.000 description 1
- 239000004925 Acrylic resin Substances 0.000 description 1
- 229920000178 Acrylic resin Polymers 0.000 description 1
- 101100313164 Caenorhabditis elegans sea-1 gene Proteins 0.000 description 1
- 238000010521 absorption reaction Methods 0.000 description 1
- PNEYBMLMFCGWSK-UHFFFAOYSA-N aluminium oxide Inorganic materials [O-2].[O-2].[O-2].[Al+3].[Al+3] PNEYBMLMFCGWSK-UHFFFAOYSA-N 0.000 description 1
- CQEYYJKEWSMYFG-UHFFFAOYSA-N butyl acrylate Chemical compound CCCCOC(=O)C=C CQEYYJKEWSMYFG-UHFFFAOYSA-N 0.000 description 1
- 229910000019 calcium carbonate Inorganic materials 0.000 description 1
- 239000003795 chemical substances by application Substances 0.000 description 1
- 238000013329 compounding Methods 0.000 description 1
- 238000005336 cracking Methods 0.000 description 1
- 238000005034 decoration Methods 0.000 description 1
- 230000006866 deterioration Effects 0.000 description 1
- 238000011156 evaluation Methods 0.000 description 1
- 239000004744 fabric Substances 0.000 description 1
- 239000000945 filler Substances 0.000 description 1
- 239000010881 fly ash Substances 0.000 description 1
- 238000009472 formulation Methods 0.000 description 1
- 239000003365 glass fiber Substances 0.000 description 1
- 239000011491 glass wool Substances 0.000 description 1
- 230000005484 gravity Effects 0.000 description 1
- 238000010422 painting Methods 0.000 description 1
- 230000035515 penetration Effects 0.000 description 1
- 230000000704 physical effect Effects 0.000 description 1
- 230000002250 progressing effect Effects 0.000 description 1
- 238000007789 sealing Methods 0.000 description 1
- 238000005507 spraying Methods 0.000 description 1
Landscapes
- Aftertreatments Of Artificial And Natural Stones (AREA)
- Curing Cements, Concrete, And Artificial Stone (AREA)
Abstract
Description
【発明の詳細な説明】
(産業上の利用分野)
この発明は、化粧繊維セメント板の製造方法に関するも
のである。さらに詳しくは、この発明は、養生硬化後に
塗布形成する化粧層の塗膜密着性、塗膜耐候性を向上さ
せることのできる、ノンアスベスト配合基板等からなる
化粧繊維セメント板の製造方法に関するものである。DETAILED DESCRIPTION OF THE INVENTION (Industrial Field of Application) The present invention relates to a method of manufacturing a decorative fiber cement board. More specifically, the present invention relates to a method for manufacturing a decorative fiber cement board made of a non-asbestos compounded substrate, etc., which can improve the adhesion and weather resistance of the decorative layer applied after curing and curing. be.
(従来の技術)
従来より、グラスウール、ファイバー等の繊維によって
補強した建築用板として有用な化粧繊維セメント板が知
られている。この化粧繊維セメント板の表面の化粧は、
通常、養生硬化した後の繊維セメント板に有機系の塗料
によって塗膜を形成することにより行われている。(Prior Art) Decorative fiber cement boards, which are reinforced with fibers such as glass wool and fibers and are useful as building boards, have been known. The surface decoration of this decorative fiber cement board is
Usually, this is done by forming a coating film using an organic paint on a fiber cement board after curing and hardening.
一方、この外装材や屋根材等の建築用板として用いられ
ている化粧繊維セメント板については、従来アスベスト
配合の繊維セメント基板が多用されてきていたが、近年
、アスベストを配合しないノンアスベスト配合への社会
的要請が高まってきている。このため、アスベストの代
替品としてパルプや、ビニロン、アクリル、ポリプロピ
レン等の樹脂繊維を配合したノンアスベスト配合の化粧
繊維セメント板の開発が進められてきている。On the other hand, for decorative fiber cement boards used as architectural boards for exterior materials and roofing materials, asbestos-containing fiber cement boards have traditionally been widely used, but in recent years, non-asbestos compositions that do not contain asbestos have been used. social demands are increasing. For this reason, as an alternative to asbestos, the development of non-asbestos decorative fiber cement boards containing pulp and resin fibers such as vinylon, acrylic, and polypropylene has been progressing.
(発明が解決しようとする課題)
しかしながら、このノンアスベスト配合品については、
養生硬化後に基板表面に塗布する化粧層の基板への密着
性や、その耐候性が低下するという問題があり、依然と
してこの問題は未解決のままになっている。(Problem to be solved by the invention) However, regarding this non-asbestos compounded product,
There is a problem in that the adhesiveness of the decorative layer applied to the substrate surface after curing and curing and its weather resistance deteriorate, and this problem still remains unsolved.
すなわち、アスベストの代替品としてパルプや有機繊維
を配合する場合には、繊維セメント板は低比重で吸水率
か大きなものとなる。このため、この繊維セメント板か
らなる基板の表面に塗料を塗布する場合には、第2図の
塗膜の顕微鏡観察の結果に示したように、従来のアスベ
スト配合の基板(ア)の場合(第2図(a))の塗ry
A(イ)の厚さ(to)に比べて、1/4〜1/2の厚
さ(第2図(b))にしかならない、これはノンアスベ
スト配合の基板の場合には、低比重のため塗料が基板に
浸み込み、このため基板に十分な厚さの塗膜が得られな
いことによるものと考えられる。このことは、塗膜形成
後の化粧繊維セメント板の塗膜の密着性、耐候性を低下
させ、クラックを生じやすい原因になっている。In other words, when pulp or organic fiber is mixed as a substitute for asbestos, the fiber cement board has a low specific gravity and a high water absorption rate. For this reason, when applying paint to the surface of a substrate made of fiber cement board, as shown in the results of microscopic observation of the coating film in Figure 2, in the case of the conventional asbestos-containing substrate (A), Painting in Figure 2 (a)
Compared to the thickness (to) of A (a), the thickness is only 1/4 to 1/2 (Fig. 2 (b)). This is thought to be due to the fact that the paint permeated into the substrate, making it impossible to obtain a sufficiently thick coating film on the substrate. This reduces the adhesion and weather resistance of the coating film on the decorative fiber cement board after the coating film has been formed, and is a cause of easy cracking.
この発明は、以上の通りの事情に鑑みてなされたもので
あり、これまでに知られているノンアスベスト配合の化
粧繊維セメント板の欠点を解消し、アスベスト配合品と
同程度以上の塗膜の密着性と耐候性を有し、クラックの
発生を防止することのできる新しい化粧繊維セメント板
の製造方法を提供することを目的としている。This invention was made in view of the above-mentioned circumstances, and eliminates the drawbacks of the conventional non-asbestos-containing decorative fiber cement boards, and provides a coating film that is equal to or higher than that of asbestos-containing products. The object of the present invention is to provide a new method for producing a decorative fiber cement board that has adhesion and weather resistance and can prevent the occurrence of cracks.
(課題を解決するための手段)
この発明は、上記の課題を解決するために、基板スラリ
ーから抄き上げた基板シートを湿熱養生するに先立って
、基板シート表面にエポキシ基またはシラン基を有する
樹脂エマルジョンを塗布することを特徴とする化粧繊維
セメント板の製造方法を提供する。(Means for Solving the Problems) In order to solve the above-mentioned problems, the present invention provides that the surface of a substrate sheet is provided with an epoxy group or a silane group prior to moist heat curing of a substrate sheet made from a substrate slurry. To provide a method for manufacturing a decorative fiber cement board, which is characterized by applying a resin emulsion.
基板シートは、いわゆる湿式抄造法によって得られるグ
リーンシー1〜であり、セメンI〜、スラグ、フライア
ッシュ等からなる混和材に、アルミナ、シリカ、炭酸カ
ルシウム、マクネシアなどの充填材を加え、さらにバル
ブまたはビニロン、アクリル、ポリプロピレン等の有機
15J脂繊維を混入して調製した基板スラリーから抄き
上げたものを使用する。この時、アスベス1へは繊維混
人材としては使用しない。The substrate sheet is Green Sea 1~, which is obtained by a so-called wet papermaking method, and is made by adding fillers such as alumina, silica, calcium carbonate, and maknesia to an admixture consisting of cement I~, slag, fly ash, etc., and then forming a valve. Alternatively, a substrate slurry prepared by mixing organic 15J resin fibers such as vinylon, acrylic, polypropylene, etc. is used. At this time, Asbeth 1 is not used as a fiber blend material.
抄造法としては、その種類に格別の限定はなく、たとえ
ば長網式抄造法、ハチニック式抄造法などの適宜なもの
を採用することができる。There are no particular limitations on the type of paper-making method, and suitable methods such as the Fourdrinier paper-making method and the Honeynick paper-making method may be employed.
養生前の基板シート表面に塗布するエポキシ基またはシ
ラン基を有する樹脂エマルジョンとしては、アクリルを
主体とした軟質樹脂の一部にエポキシ基またはシラン基
を付加した樹脂のエマルジョンとすることができる。The resin emulsion having an epoxy group or a silane group to be applied to the surface of the substrate sheet before curing can be an emulsion of a resin in which an epoxy group or a silane group is added to a part of a soft resin mainly composed of acrylic.
たとえば樹脂成分としては、2−エチルへキシルアクリ
レート、ブチルアクリレート等を含むアクリル樹脂で、
アクリル成分の一部にエポキシ基またはシラン基を付加
したものを好適に用いることができる。これらの樹脂は
、アニオン、カチオン、ノニオンの任意のエマルジョン
として使用することができる。For example, the resin component is an acrylic resin containing 2-ethylhexyl acrylate, butyl acrylate, etc.
An acrylic component to which an epoxy group or a silane group is added can be preferably used. These resins can be used as any anionic, cationic, or nonionic emulsion.
養生硬化に先立ってのこの樹脂エマルジョンの散布は、
5〜50倍程度の水と混和した状態において、基板シー
ト表面に、たとえば、0.002〜0、020g /−
程度の1で塗布するようにすればよい、もちろん、この
範囲は格別に限定的なものではなく、基板シートの組成
、物性等によって適宜に選択することができる。Spraying this resin emulsion prior to curing and curing
For example, 0.002 to 0.020 g/- is applied to the surface of the substrate sheet in a state mixed with about 5 to 50 times as much water.
Of course, this range is not particularly limited, and can be appropriately selected depending on the composition, physical properties, etc. of the substrate sheet.
樹脂エマルジョンは、基布シート表面に適宜な方法によ
って塗布することができる。スプレー塗布でもよい。The resin emulsion can be applied to the surface of the base fabric sheet by an appropriate method. Spray application may also be used.
以上の樹脂エマルジョンの塗布の終了後に養生硬化し、
次いで塗料を塗布することによって化粧繊維セメント板
を製造する。After the above resin emulsion is applied, it is cured and hardened.
A decorative fiber cement board is then produced by applying a paint.
(作 用)
この発明の樹脂エマルジョンを塗布する方法によって、
ノンアスベスト配合のグリーンシートにおいてもそ°の
基板表面への塗料塗布における塗料の浸み込み防止と、
これにより実質塗膜厚みを確保することができる。化粧
層塗膜の密着性、耐候性の低下を防止し、アスベスト配
合品と同等以上の特性を実現する。(Function) By the method of applying the resin emulsion of this invention,
Even with non-asbestos-containing green sheets, it is necessary to prevent paint from seeping into the surface of the substrate.
This makes it possible to ensure a substantial coating film thickness. It prevents deterioration of the adhesion and weather resistance of the decorative layer coating, and achieves properties equivalent to or better than products containing asbestos.
樹脂エマルジョンの塗布は、基板表面の目止め作用を実
現する。Application of the resin emulsion achieves a sealing effect on the substrate surface.
(実施例)
第1図に示したハチニック式抄造方法によって基板シー
トを製造した。すなわち、基板スラリー槽(1)にフェ
ルトシート(2)を通して、メ−キングロール(3)上
に基板シート(4)を作製した0次いで得られた基板シ
ート(4)の表面に樹脂エマルジョン(5)をスプレー
装置(6)によって塗布し、その後温熱養生し、さらに
有機塗料を塗布して化粧繊維セメント板を製造した。(Example) A substrate sheet was manufactured by the Hachinik papermaking method shown in FIG. That is, a felt sheet (2) was passed through a substrate slurry tank (1), and a substrate sheet (4) was prepared on a making roll (3). ) was applied using a spray device (6), then heated and cured, and an organic paint was further applied to produce a decorative fiber cement board.
この際に、配合繊維としてはアスベストを使用せず、叩
解バルブ(Zoo C3F:NIJKP)4%、およ
びビニロン(径1.8デニール、長さ4市)1%を配合
した。At this time, asbestos was not used as the blended fiber, but 4% of beaten valve (Zoo C3F: NIJKP) and 1% of vinylon (diameter 1.8 denier, length 4 cities) were blended.
樹脂エマルジョンとして、表1に示した通り、アニオン
およびカチオンの4種の樹脂エマルジョンを塗布した。As shown in Table 1, four types of anionic and cationic resin emulsions were applied as resin emulsions.
これにアクリルエマルジョン塗料0.01g/cJを塗
布して化粧繊維セメント板を得た。An acrylic emulsion paint of 0.01 g/cJ was applied to this to obtain a decorative fiber cement board.
このセメント板について化粧層塗膜の厚みと耐温水テス
ト後の塗膜のクラック11、さらに耐候性について評価
した。The thickness of the decorative layer coating film, cracks 11 in the coating film after the hot water resistance test, and weather resistance of this cement board were evaluated.
その結果を示したものが表1の実施例1〜4である。Examples 1 to 4 in Table 1 show the results.
また、比較のために、上記のノンアスベスト繊維配合で
はあるが、樹脂エマルジョンを塗布しない場合(比較例
1)、さらに、繊維としてアスベスト13%を配合し、
樹脂エマルジョンを塗布しない場合(比較例2)につい
ても同様に評価を行った。この結果も表1に示した。In addition, for comparison, the above-mentioned non-asbestos fiber formulation was used but no resin emulsion was applied (Comparative Example 1), and in addition, 13% asbestos was blended as fiber,
The same evaluation was performed for the case where no resin emulsion was applied (Comparative Example 2). The results are also shown in Table 1.
表1の結果から明らかなように、ノンアスベスト配合の
基板シートの表面に樹脂エマルジョンを塗布する場合に
は、エマルジョンの塗布量が0.008 tr/cJに
おいて化粧層の塗膜の厚みはアスベスト配合の場合(比
較例2)と同等以上であり、塗布のクラックはアスベス
ト配合の場合以上に発生しにくくなっている。As is clear from the results in Table 1, when a resin emulsion is applied to the surface of a non-asbestos-containing substrate sheet, the thickness of the coating film of the decorative layer is the same as that of the asbestos-containing coating when the emulsion coating amount is 0.008 tr/cJ. (Comparative Example 2), and cracks in the coating are less likely to occur than in the case of asbestos.
樹脂エマルジョンはアニオンの場合よりもカチオンのも
のが特性はさらに良好である。Cationic resin emulsions have better properties than anionic resin emulsions.
なお、ノンアスベスト配合の場合に樹脂エマルジョンを
塗布しないものは、その特性がかなり劣っている(比較
例1)。In addition, in the case of non-asbestos compounding, the properties are considerably inferior when resin emulsion is not applied (Comparative Example 1).
(発明の効果)
以上詳しく説明した通り、この発明の方法により、ノン
アスベスト配合の湿式抄造基板シートにおいても、養生
後の化粧層塗布における塗料の浸み込みを防止し、実質
塗膜厚みを確保することができる。(Effects of the Invention) As explained in detail above, the method of the present invention prevents the penetration of paint during the application of the decorative layer after curing and ensures a substantial coating film thickness even for non-asbestos-containing wet paper-formed substrate sheets. can do.
塗膜の密着性および耐候性をアスベスト配合の場合と同
等以上に向上させることができる。The adhesion and weather resistance of the coating film can be improved to the same level or higher than when asbestos is added.
第1図は、この発明の方法の一例を示した工程断面図で
ある。
第2図(a)(b)は、従来のアスベスト配合化粧繊維
セメント板をノンアスベスト配合化粧繊維セメント板と
の各々の塗料塗膜の状態を顕微鏡観察の結果として示し
た断面図である。
1・・・基板スラリー槽 2・・・フェルトシート
3・・・メーキングロール 4・・・基板シート5・
・・樹脂エマルジョン 6・・・スプレー装置代理人
弁理士 西 澤 利 夫第 1 区
第 2
(a)
イ
レ
(b)
イFIG. 1 is a process sectional view showing an example of the method of the present invention. FIGS. 2(a) and 2(b) are cross-sectional views showing the state of the paint film of a conventional asbestos-containing decorative fiber cement board and a non-asbestos-containing decorative fiber cement board as a result of microscopic observation. 1... Substrate slurry tank 2... Felt sheet 3... Making roll 4... Substrate sheet 5.
...Resin emulsion 6... Spray device agent Patent attorney Toshio Nishizawa District 1 2 (a) Ire (b) I
Claims (1)
生するに先立って、基板シート表面にエポキシ基または
シラン基を有する樹脂エマルジョンを塗布することを特
徴とする化粧繊維セメント板の製造方法。(1) A method for producing a decorative fiber cement board, which comprises applying a resin emulsion having an epoxy group or a silane group to the surface of the substrate sheet before subjecting the substrate sheet prepared from the substrate slurry to moist heat curing.
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP63127992A JP2580002B2 (en) | 1988-05-25 | 1988-05-25 | Manufacturing method of decorative fiber cement board |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP63127992A JP2580002B2 (en) | 1988-05-25 | 1988-05-25 | Manufacturing method of decorative fiber cement board |
Publications (2)
Publication Number | Publication Date |
---|---|
JPH01298086A true JPH01298086A (en) | 1989-12-01 |
JP2580002B2 JP2580002B2 (en) | 1997-02-12 |
Family
ID=14973777
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP63127992A Expired - Lifetime JP2580002B2 (en) | 1988-05-25 | 1988-05-25 | Manufacturing method of decorative fiber cement board |
Country Status (1)
Country | Link |
---|---|
JP (1) | JP2580002B2 (en) |
Cited By (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
WO1999028275A1 (en) * | 1997-12-02 | 1999-06-10 | Maranit S.P.A. | Process for the production of fibre-reinforced sheets |
JP2006273656A (en) * | 2005-03-29 | 2006-10-12 | A & A Material Corp | Inorganic board and its manufacturing method |
JP2008156153A (en) * | 2006-12-22 | 2008-07-10 | Taiheiyo Material Kk | Method for preventing dryout in polymer cement composition |
-
1988
- 1988-05-25 JP JP63127992A patent/JP2580002B2/en not_active Expired - Lifetime
Cited By (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
WO1999028275A1 (en) * | 1997-12-02 | 1999-06-10 | Maranit S.P.A. | Process for the production of fibre-reinforced sheets |
JP2006273656A (en) * | 2005-03-29 | 2006-10-12 | A & A Material Corp | Inorganic board and its manufacturing method |
JP2008156153A (en) * | 2006-12-22 | 2008-07-10 | Taiheiyo Material Kk | Method for preventing dryout in polymer cement composition |
Also Published As
Publication number | Publication date |
---|---|
JP2580002B2 (en) | 1997-02-12 |
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