JPS643832B2 - - Google Patents
Info
- Publication number
- JPS643832B2 JPS643832B2 JP132884A JP132884A JPS643832B2 JP S643832 B2 JPS643832 B2 JP S643832B2 JP 132884 A JP132884 A JP 132884A JP 132884 A JP132884 A JP 132884A JP S643832 B2 JPS643832 B2 JP S643832B2
- Authority
- JP
- Japan
- Prior art keywords
- mortar
- board
- formwork
- shrinkage
- concrete
- 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.)
- Expired
Links
- 239000004570 mortar (masonry) Substances 0.000 claims description 43
- 238000009415 formwork Methods 0.000 claims description 14
- 229910001562 pearlite Inorganic materials 0.000 claims description 6
- 238000000034 method Methods 0.000 claims description 3
- 230000006835 compression Effects 0.000 description 6
- 238000007906 compression Methods 0.000 description 6
- 239000004568 cement Substances 0.000 description 5
- 239000000463 material Substances 0.000 description 5
- 239000003795 chemical substances by application Substances 0.000 description 4
- 238000001035 drying Methods 0.000 description 3
- 230000005484 gravity Effects 0.000 description 3
- 230000002093 peripheral effect Effects 0.000 description 3
- 238000005452 bending Methods 0.000 description 2
- 238000002156 mixing Methods 0.000 description 2
- 230000000149 penetrating effect Effects 0.000 description 2
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 2
- 239000011398 Portland cement Substances 0.000 description 1
- 241000975357 Salangichthys microdon Species 0.000 description 1
- 235000015179 biltong Nutrition 0.000 description 1
- 239000004067 bulking agent Substances 0.000 description 1
- 239000011248 coating agent Substances 0.000 description 1
- 238000000576 coating method Methods 0.000 description 1
- 239000003086 colorant Substances 0.000 description 1
- 239000000945 filler Substances 0.000 description 1
- 238000007730 finishing process Methods 0.000 description 1
- 239000002184 metal Substances 0.000 description 1
- 239000000203 mixture Substances 0.000 description 1
- PSZYNBSKGUBXEH-UHFFFAOYSA-M naphthalene-1-sulfonate Chemical group C1=CC=C2C(S(=O)(=O)[O-])=CC=CC2=C1 PSZYNBSKGUBXEH-UHFFFAOYSA-M 0.000 description 1
- 235000019362 perlite Nutrition 0.000 description 1
- 239000010451 perlite Substances 0.000 description 1
- 230000035699 permeability Effects 0.000 description 1
- 239000004094 surface-active agent Substances 0.000 description 1
Landscapes
- On-Site Construction Work That Accompanies The Preparation And Application Of Concrete (AREA)
- Aftertreatments Of Artificial And Natural Stones (AREA)
Description
【発明の詳細な説明】
細骨材率が４〜９％と極端に低いおこし状コン
クリートは通水性があり、外観もよくない。[Detailed Description of the Invention] Raised concrete with an extremely low fine aggregate ratio of 4 to 9% has water permeability and does not have a good appearance.
前記おこし状コンクリートは骨材として人工軽
量骨材を用いたコンクリートも、天然骨材を用い
たコンクリートも共に乾燥収縮が早く終り、この
ためコンクリートの表面に一般のモルタルを用い
ると、本体のおこし状コンクリートと表面仕上げ
層との乾燥収縮の差から仕上げ面にひび割れが入
り易い。また仕上げ作業中、本体のおこし状コン
クリートの空隙には仕上げ材が進入し易いため、
出来上り製品の正確な重量を予測することが難か
しい。 The drying shrinkage of both the concrete using artificial lightweight aggregate and the concrete using natural aggregate ends quickly, and for this reason, if ordinary mortar is used on the surface of the concrete, the concrete itself will not become erected. The finished surface tends to crack due to the difference in drying shrinkage between the concrete and the surface finish layer. Also, during finishing work, finishing materials can easily enter the voids in the raised concrete of the main body.
It is difficult to predict the exact weight of the finished product.
本発明はこのような問題点を解決するために提
案されたもので、脱型されたおこし状コンクリー
トよりなるPC板の全外表面に硬練りのシラスモ
ルタルまたはパーライトモルタルを被着し、次い
で底面に無収縮モルタルを敷均らした型枠内に前
記PC板を装入し、前記モルタルの硬化後脱型し
たPC板を反転して底面に無収縮モルタルを敷均
らした型枠内に装入するとともに、同型枠と前記
PC板の外周側端面との間に無収縮モルタルを填
装し、同モルタルの硬化後、脱型することを特徴
とするおこし状コンクリートから構成されたPC
板の表面仕上げ方法に係るものである。 The present invention has been proposed to solve these problems, and consists of applying hard shirasu mortar or pearlite mortar to the entire outer surface of a PC board made of demolded concrete, and then coating the bottom surface. The PC board is placed in a formwork on which non-shrinkage mortar has been evenly spread, and after the mortar has hardened, the demolded PC board is inverted and placed in the formwork on which non-shrinkage mortar has been spread evenly on the bottom. At the same time, the same formwork and the above
A PC made of raised concrete characterized by filling non-shrinkage mortar between the outer peripheral end face of the PC board and removing the mold after the mortar hardens.
This relates to a method for finishing the surface of a plate.
本発明においては前記したように、脱型された
おこし状コンクリートよりなるPC板の全外表面
に硬練りのシラスモルタルまたはパーライトモル
タルを被着することによつてPC板の外表面近傍
のコンクリート内部への空隙を閉塞し、仕上げ過
程において仕上げ材がおこし状コンクリート内部
に侵入して製品重量を増大することを防止するも
のである。 In the present invention, as described above, by applying hardened shirasu mortar or pearlite mortar to the entire outer surface of the PC board made of demolded concrete, the inside of the concrete near the outer surface of the PC board is This prevents finishing materials from penetrating into the raised concrete during the finishing process and increasing the weight of the product.
次いで本発明においては前記のように前処理さ
れたPC板を底面に無収縮モルタルの敷均らされ
た型枠内に装入し、同モルタルの硬化後、脱型す
るようにしたので同モルタルが前記PC板の底面
に一体的に層着され、同モルタルの型枠に接した
面が仕上げ面となる。この際PC板には前記した
ように硬練りのシラスモルタルまたはパーライト
モルタルが被着されているので、前記モルタルが
PC板の主体を構成するおこし状コンクリートに
侵入して重量が増大する惧れがない。また前記モ
ルタルは無収縮モルタルより構成されているの
で、前記PC板の仕上げ面に乾燥収縮によるひび
割れの生じる惧れがなくなる。 Next, in the present invention, the pretreated PC board as described above is placed in a formwork with non-shrinkage mortar spread on the bottom, and after the mortar hardens, it is removed from the mold. is integrally layered on the bottom surface of the PC board, and the surface of the mortar in contact with the formwork becomes the finished surface. At this time, the PC board is coated with hard shirasu mortar or pearlite mortar as described above, so the mortar is
There is no risk of it penetrating into the raised concrete that makes up the main body of the PC board and increasing its weight. Furthermore, since the mortar is made of non-shrinkage mortar, there is no risk of cracks occurring on the finished surface of the PC board due to drying shrinkage.
次いで本発明においては前記PC板を反転して、
底面に無収縮モルタルの敷均らされた型枠に装入
するとともに、同型枠と前記PC板の外周側端面
との間に無収縮モルタルを装入してその硬化後脱
型するようにしたので、前記PC板の全外周面に
無収縮モルタルの仕上げ面が形成されることとな
る。 Next, in the present invention, the PC board is reversed,
It was charged into a formwork with non-shrinkage mortar evenly spread on the bottom, and non-shrinkage mortar was also charged between the formwork and the outer peripheral end face of the PC board, and after it had hardened, it was removed from the mold. Therefore, a finished surface of non-shrinkage mortar is formed on the entire outer peripheral surface of the PC board.
このように本発明によれば簡単な構成で、おこ
し状コンクリートより構成されたPC板の表面仕
上げを容易に行なうことができ、この際、仕上げ
面が均質に構成され、表面ひび割れや、仕上げ材
の内部侵入による重量の増加を招来しない等、本
発明は多くの利点を有するものである。 As described above, according to the present invention, it is possible to easily finish the surface of a PC board made of raised concrete with a simple structure. The present invention has many advantages, such as not causing an increase in weight due to intrusion into the interior.
以下本発明を実施例について説明する。 The present invention will be described below with reference to Examples.
下記の配合例によるおこし状コンクリートによ
つてPC板を製造する。 A PC board is manufactured using raised concrete according to the following mixing example.
配合例
早強セメント 285Kg
細骨材 33.4 62Kg
粗骨材 634.6 895Kg
細骨材率 ５％
水セメント比 35％
増量剤 400
流動剤 2500c.c.
（註１） 骨材は人工軽量骨材、ビルトン（商品
名：膨脹頁岩を焼成粉砕したもの、住友金属鉱
山株式会社製造）を使用した。Mixing example Early strength cement 285Kg Fine aggregate 33.4 62Kg Coarse aggregate 634.6 895Kg Fine aggregate ratio 5% Water-cement ratio 35% Bulking agent 400 Flow agent 2500c.c. (Note 1) The aggregate is artificial lightweight aggregate, biltong ( Product name: Expanded shale calcined and crushed (manufactured by Sumitomo Metal Mining Co., Ltd.) was used.
（註２） 増量材はパーライトＣ種を軽詰状態で
使用した。(Note 2) Perlite C type was used as the filler in a lightly packed state.
（註３） 流動化剤はマイテイFD（商品名：ナフ
タリンスルフオン酸塩を主成分とする界面活性
剤（花王石鹸株式会社製造）を使用した。(Note 3) As the fluidizing agent, Mighty FD (trade name: a surfactant whose main component is naphthalene sulfonate (manufactured by Kao Soap Co., Ltd.) was used.
流動化剤は水セメント比を少なくし、しかも
粗骨材を囲繞するモルタル量を或る程度均等に
するために使用した。 The fluidizing agent was used to reduce the water-cement ratio and to make the amount of mortar surrounding the coarse aggregate more or less uniform.
（註４） 容積は絶対容積、重量は表乾状態であ
る。粗骨材は表乾状態で用いた。(Note 4) Volume is absolute volume, weight is surface dry. The coarse aggregate was used in a surface dry state.
（註５） なお、おこし状コンクリートの水セメ
ント比は28〜37％、気乾比重が1.3以下が適当
である。(Note 5) The appropriate water-cement ratio for raised concrete is 28 to 37%, and the air-dry specific gravity is 1.3 or less.
前記おこし状コンクリートの特性は下記のとお
りである。 The characteristics of the raised concrete are as follows.
スランプ 0.4cm
気乾比重 1.272
次に前記おこし状コンクリートの強度試験結果
を挙げる。 Slump: 0.4cm Air-dried specific gravity: 1.272 Next, the strength test results of the above-mentioned raised concrete are listed.
(A) 養生条件 標 準
材令 １日 圧縮 128Kg／cm2
材令 １週 圧縮 174Kg／cm2
曲げ 30Kg／cm2
材令 ４週 圧縮 213Kg／cm2
曲げ 33Kg／cm2
附着 100Kg／cm2
(B) 養生条件 蒸 気
材令 １日 圧縮 171Kg／cm2
材令 １週 圧縮 206Kg／cm2
曲げ 22Kg／cm2
材令 ４週 圧縮 226Kg／cm2
曲げ 21Kg／cm2
以上のようにして製造されたPC板の上下左右
前後全外表面に亘つて硬練りのシラスモルタル、
またはパーライトモルタルを被着し、前記外表面
の空隙を封塞する。(A) Curing conditions Standard Age of material 1 day Compression 128Kg/cm Age of 2 materials 1 week Compression 174Kg/cm 2 bending 30Kg/cm Age of 2 materials 4 weeks Compression 213Kg/cm 2 bending 33Kg/cm 2 Attachment 100Kg/cm 2 ( B) Curing conditions Steam Lumber age 1 day Compression 171Kg/cm 2Lumber age 1 week Compression 206Kg/cm 2Bending 22Kg/cm 2Lumber age 4 weeks Compression 226Kg/cm 2Bending 21Kg/cm 2 Manufactured as above. Hard-kneaded whitebait mortar is applied to the entire outer surface of the PC board, top, bottom, left, right, front and back.
Alternatively, pearlite mortar is applied to seal the voids on the outer surface.
前記モルタルの配合例を次に挙げる。 Examples of the composition of the mortar are listed below.
普通ポルトランドセメント ……350Kg
水 ……380
水セメント比 ……109％
AE剤 ……175c.c.
パーライトＣ種 ……1160
スランプ 15cm
気乾比重 0.8
次にPC板の平板式型枠の底面に無収縮モルタ
ルを、平板若しくは棒状バイブレータを使用して
３〜５mm厚に均等に敷均らし、その上に前記PC
板を装入する。Ordinary Portland cement...350Kg Water...380 Water-cement ratio...109% AE agent...175c.c. Pearlite type C...1160 Slump 15cm Air-dried specific gravity 0.8 Next, the bottom of the PC plate flat formwork was Spread the shrink mortar evenly to a thickness of 3 to 5 mm using a flat plate or rod-shaped vibrator, and then apply the PC on top of it.
Load the board.
前記無収縮モルタルの硬化後、脱型すると、硬
化した同モルタルの型枠に接した面が、PC板底
面の仕上げ面となる。 When the non-shrinkage mortar is removed from the mold after hardening, the surface of the hardened mortar in contact with the formwork becomes the finished surface of the bottom of the PC board.
次いで、前記型枠底面に前工程の場合と同様に
無収縮モルタルを均等に敷均らし、前記PC板を
反転してその上面が前記モルタル層に接するよう
に型枠内に装入し、同型枠内にPC板が定着した
のち、同PC板の前後左右端面と前記型枠との間
に無収縮モルタルを填装する。 Next, non-shrinkage mortar is evenly spread on the bottom of the mold as in the previous step, and the PC board is turned over and placed in the mold so that its top surface is in contact with the mortar layer. After the PC board is fixed in the frame, non-shrinkage mortar is filled between the front, rear, left and right end surfaces of the PC board and the formwork.
かくして前記無収縮モルタルの硬化後脱型する
と、硬化した同モルタルの型枠に接する面がPC
板の底面及び前後左右端面の仕上げ面となる。 Thus, when the non-shrinkage mortar is removed from the mold after hardening, the surface of the hardened mortar in contact with the formwork becomes PC.
This will be the finished surface of the bottom, front, rear, left and right end surfaces of the board.
なおこの無収縮モルタルは前工程に使用される
無収縮モルタルと同一であつても、異なるもので
あつてもよい。 Note that this non-shrinking mortar may be the same as or different from the non-shrinking mortar used in the previous step.
また前記無収縮モルタルには必要に応じて着色
剤を添加したり、質感を変えるようにしてもよ
い。 Further, a coloring agent may be added to the non-shrinkage mortar as necessary, or the texture may be changed.
なお本方法は開口部を有するPC板、その他複
雑な形状を有するPC板の仕上げにも適用される。 This method can also be applied to finishing PC boards with openings and other complicated shapes.
以上本発明を実施例について説明したが、本発
明は勿論このような実施例にだけ局限されるだけ
ものではなく、本発明の精神を逸脱しない範囲内
で種々の設計の改変を施しうるものである。 Although the present invention has been described above with reference to embodiments, the present invention is of course not limited to such embodiments, and can be modified in various ways without departing from the spirit of the invention. be.
Claims (1)
PC板の全外表面に硬練りのシラスモルタルまた
はパーライトモルタルを被着し、次いで底面に無
収縮モルタルを敷均らした型枠内に前記PC板を
装入し、前記モルタルの硬化後脱型したPC板を
反転して底面に無収縮モルタルを敷均らした型枠
内に装入するとともに、同型枠と前記PC板の外
周側端面との間に無収縮モルタルを填装し、同モ
ルタルの硬化後、脱型することを特徴とするおこ
し状コンクリートから構成されたPC板の表面仕
上げ方法。1 Made of demolded concrete
Hard kneaded shirasu mortar or pearlite mortar is applied to the entire outer surface of the PC board, then the PC board is placed in a formwork with non-shrinkage mortar spread on the bottom, and after the mortar hardens, the mold is removed. The PC board was turned over and charged into a formwork with non-shrinkage mortar spread evenly on the bottom, and non-shrinkage mortar was filled between the formwork and the outer edge of the PC board, and the mortar A surface finishing method for a PC board made of raised concrete, which is characterized by demolding after hardening.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP132884A JPS60145975A (en) | 1984-01-10 | 1984-01-10 | Surface finishing process for pc board comprising foamed concrete |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP132884A JPS60145975A (en) | 1984-01-10 | 1984-01-10 | Surface finishing process for pc board comprising foamed concrete |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS60145975A JPS60145975A (en) | 1985-08-01 |
| JPS643832B2 true JPS643832B2 (en) | 1989-01-23 |
Family
ID=11498426
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP132884A Granted JPS60145975A (en) | 1984-01-10 | 1984-01-10 | Surface finishing process for pc board comprising foamed concrete |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS60145975A (en) |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| MY133607A (en) * | 1999-12-29 | 2007-11-30 | Takachiho Corp | Paint material for constructional finishing, and panel for constructional finishing and method of preparing these |
-
1984
- 1984-01-10 JP JP132884A patent/JPS60145975A/en active Granted
Also Published As
| Publication number | Publication date |
|---|---|
| JPS60145975A (en) | 1985-08-01 |
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