JPH0446408Y2 - - Google Patents

Info

Publication number
JPH0446408Y2
JPH0446408Y2 JP1986104418U JP10441886U JPH0446408Y2 JP H0446408 Y2 JPH0446408 Y2 JP H0446408Y2 JP 1986104418 U JP1986104418 U JP 1986104418U JP 10441886 U JP10441886 U JP 10441886U JP H0446408 Y2 JPH0446408 Y2 JP H0446408Y2
Authority
JP
Japan
Prior art keywords
lightweight
mortar
specific gravity
concrete
layer
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
Application number
JP1986104418U
Other languages
Japanese (ja)
Other versions
JPS6310120U (en
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed filed Critical
Priority to JP1986104418U priority Critical patent/JPH0446408Y2/ja
Publication of JPS6310120U publication Critical patent/JPS6310120U/ja
Application granted granted Critical
Publication of JPH0446408Y2 publication Critical patent/JPH0446408Y2/ja
Expired legal-status Critical Current

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  • Panels For Use In Building Construction (AREA)
  • Laminated Bodies (AREA)

Description

【考案の詳細な説明】[Detailed explanation of the idea]

〔産業上の利用分野〕 本考案は主として物置等の簡易な建物の外壁や
間仕切り等に使用する複合軽量コンクリート板に
関する。 〔従来の技術〕 物置等の小型の簡易な建物の外壁、間仕切り、
床等には、軽くて加工し易く断熱性に優れた軽量
気泡コンクリートからなる軽量コンクリート板が
使用されているが、脆弱であるために、施工時の
衝撃等により角部が欠け易い欠点があつた。 又、軽量コンクリート板は、空気連行剤(AE
剤)や起泡剤により気泡を多量に混入させた軽量
気泡コンクリートからなり、ポーラスな材質であ
るために吸水性があり、屋外設置の物置等の外壁
として使用するにはこの点で必ずしも満足できる
ものではなかつた。 そこで、軽量コンクリート板の一表面に通常の
モルタルを打設し、養生して硬化させた複合軽量
コンクリート板が提案されているが、モルタル層
と軽量コンクリート板との乾燥収縮量や熱膨張係
数の違いが大きく、両者が剥離し易かつた。 〔考案が解決しようとする問題点〕 本考案は、モルタル層と軽量気泡コンクリート
層が強固に接着し、軽くて加工性及び断熱性に優
れると共に、充分な強度と低減された吸水性を有
する複合軽量コンクリート板を提供することを目
的とする。 〔問題点を解決するための手段〕 本考案の複合軽量コンクリート板は、気泡を含
まず、多孔質軽量骨材粉末を含有する比重1.0〜
1.6のモルタル層と、該モルタルの少なくとも一
面に一体に形成された比重0.6〜0.8の軽量気泡コ
ンクリート層とからなる。 〔作用〕 従来から知られている通常のモルタルの比重は
約2.3であるが、本考案のモルタル層はAE剤等に
よる気泡を含まず、セメント、珪石粉の他にパー
ライトやヒル石等の多孔質軽量骨材の粉末を含有
することによつて比重を1.0〜1.6に調整してあ
り、この範囲の比重に調整することにより比重
0.6〜0.8の軽量気泡コンクリート層との強固な接
着が得られる。 又、上記モルタル層は気泡を含まないうえ、軽
量化のために混入する多孔質軽量骨材も粉末にし
て添加されているので,同程度の比重の軽量気泡
コンクリートと比べて多孔質軽量骨材粉末間を結
合している気泡を含まないモルタル部分により吸
水性が大幅に低減されている。従つて、外壁とし
て使用する場合でも、モルタル層を外側にして施
工すれば充分満足できる耐水性を得ることができ
る。 モルタル層の比重が1.0未満では複合軽量コン
クリート板の強度の向上が充分ではなく、又気泡
を含まなくても多孔質軽量骨材粉末の量が多くな
るため吸水率の低下が少なく、比重1.6を超える
とモルタル層と前記軽量気泡コンクリート層の乾
燥収縮量、熱伝導率等の差が大きくなり、養生に
よつて剥離や反りを生じ易くなるからである。 軽量気泡コンクリート層とモルタル層との接着
性を更に向上させるために、上記比重のモルタル
を型枠に打設した後、その表面を櫛状のへら等で
ならして粗面とすること、打設したモルタルを約
2〜3時間放置してセメントの水和反応を開始さ
せてから軽量気泡コンクリートを打設すること、
及び/又は軽量気泡コンクリートを打設してから
約20時間放置して取扱い可能な状態(圧縮強度約
5Kg/cm2程度)になるまで徐々に強化させること
が好ましい。 〔実施例〕 第2図aに示すように、型枠1内に下記第1表
の配合で比重1.20のモルタル2を打設し、型枠1
に振動を与えてモルタル2をならしたのち、表面
に櫛状のへらで凹凸を付けて粗面3とした。
[Industrial Application Field] The present invention relates to a composite lightweight concrete plate used mainly for the exterior walls and partitions of simple buildings such as storerooms. [Prior art] External walls, partitions, and
Lightweight concrete plates made of lightweight aerated concrete are used for floors, etc., which are light, easy to process, and have excellent heat insulation properties, but because they are brittle, they have the disadvantage that corners are easily chipped due to impacts during construction. Ta. In addition, lightweight concrete plates are coated with air entraining agents (AE).
It is made of lightweight aerated concrete with a large amount of air bubbles mixed in using a foaming agent or a foaming agent, and because it is a porous material, it has water absorption properties, so it is not necessarily satisfactory for use as the exterior wall of outdoor storage sheds, etc. It wasn't something. Therefore, a composite lightweight concrete board has been proposed in which ordinary mortar is cast on one surface of the lightweight concrete board and cured to harden, but the drying shrinkage and thermal expansion coefficient between the mortar layer and the lightweight concrete board The difference was large, and both were easy to peel off. [Problems to be solved by the invention] This invention is a composite material that has a mortar layer and a lightweight aerated concrete layer that are firmly bonded together, is lightweight, has excellent workability and heat insulation properties, and has sufficient strength and reduced water absorption. The purpose is to provide lightweight concrete plates. [Means for solving the problem] The composite lightweight concrete board of the present invention does not contain air bubbles and has a specific gravity of 1.0 to 1.0 containing porous lightweight aggregate powder.
It consists of a mortar layer with a specific gravity of 1.6 and a lightweight cellular concrete layer with a specific gravity of 0.6 to 0.8 integrally formed on at least one surface of the mortar. [Function] Conventionally known normal mortar has a specific gravity of approximately 2.3, but the mortar layer of the present invention does not contain air bubbles caused by AE agents, etc., and contains porous materials such as perlite and vermiculite in addition to cement and silica powder. The specific gravity is adjusted to 1.0 to 1.6 by containing high-quality lightweight aggregate powder, and by adjusting the specific gravity within this range, the specific gravity
Provides strong adhesion with lightweight aerated concrete layers of 0.6-0.8. In addition, the mortar layer does not contain air bubbles, and powdered porous lightweight aggregate is added to reduce the weight, so compared to lightweight cellular concrete with a similar specific gravity, porous lightweight aggregate is not included. Water absorption is significantly reduced by the bubble-free mortar that binds the powder. Therefore, even when used as an exterior wall, sufficient water resistance can be obtained by constructing with the mortar layer on the outside. If the specific gravity of the mortar layer is less than 1.0, the strength of the composite lightweight concrete plate will not be sufficiently improved, and even if it does not contain air bubbles, the amount of porous lightweight aggregate powder will increase, so there will be little decrease in water absorption. This is because, if it exceeds, the difference in the amount of drying shrinkage, thermal conductivity, etc. between the mortar layer and the lightweight cellular concrete layer becomes large, and peeling and warping are likely to occur during curing. In order to further improve the adhesion between the lightweight cellular concrete layer and the mortar layer, after pouring mortar with the above specific gravity into the formwork, smooth the surface with a comb-shaped spatula etc. to make it rough. Allow the mortar to stand for about 2 to 3 hours to start the hydration reaction of the cement before pouring lightweight aerated concrete.
And/or it is preferable to leave the lightweight aerated concrete for about 20 hours after pouring it and gradually strengthen it until it reaches a handleable state (compressive strength of about 5 kg/cm 2 ). [Example] As shown in Figure 2a, mortar 2 with a specific gravity of 1.20 is placed in the formwork 1 with the composition shown in Table 1 below.
After leveling the mortar 2 by applying vibration to the mortar 2, the surface was roughened with a comb-shaped spatula to form a rough surface 3.

【表】 モルタル2を打設してから約2〜3時間放置し
た後、第2図bに示すように未硬化状態のモルタ
ル2上に下記配合で比重0.75の軽量気泡コンクリ
ート4を打設し、約20時間放置してから型枠1を
取り外してオートクレーブ養生した。
[Table] After placing the mortar 2 and leaving it for about 2 to 3 hours, as shown in Figure 2b, lightweight aerated concrete 4 with a specific gravity of 0.75 was poured on the uncured mortar 2 with the following composition. After leaving it for about 20 hours, formwork 1 was removed and cured in an autoclave.

〔考案の効果〕[Effect of idea]

本考案によれば、軽くて加工性及び断熱性に優
れると共に施工時に欠損を生じない充分な強度を
備え、気泡を含まないモルタル層により低減され
た吸水性を有し、強固に密着したモルタル層と軽
量気泡コンクリート層からなる複合軽量コンクリ
ート板を簡単に提供することがきる。
According to the present invention, it is light and has excellent workability and heat insulation properties, has sufficient strength to prevent breakage during construction, has reduced water absorption due to the mortar layer that does not contain air bubbles, and has a tightly adhered mortar layer. It is possible to easily provide a composite lightweight concrete plate consisting of a lightweight aerated concrete layer and a lightweight aerated concrete layer.

【図面の簡単な説明】[Brief explanation of the drawing]

第1図は本考案の複合軽量コンクリート板の角
部の斜視図である。第2図a及びbは本考案の複
合軽量コンクリート板の製造を工程順に示した断
面図である。 1……型枠、2……モルタル、3……粗面、4
……軽量気泡コンクリート、5……モルタル層、
6……軽量気泡コンクリート層。
FIG. 1 is a perspective view of a corner of the composite lightweight concrete plate of the present invention. FIGS. 2a and 2b are cross-sectional views showing the manufacturing process of the composite lightweight concrete plate of the present invention in the order of steps. 1... Formwork, 2... Mortar, 3... Rough surface, 4
... Lightweight cellular concrete, 5 ... Mortar layer,
6...Lightweight aerated concrete layer.

Claims (1)

【実用新案登録請求の範囲】[Scope of utility model registration request] 気泡を含まず、多孔質軽量骨材粉末を含有する
比重1.0〜1.6のモルタル層と、該モルタル層の少
なくとも一面に一体に形成された比重0.6〜0.8の
軽量気泡コンクリート層とからなる複合軽量コン
クリート板。
Composite lightweight concrete consisting of a mortar layer with a specific gravity of 1.0 to 1.6 that does not contain air bubbles and contains porous lightweight aggregate powder, and a lightweight cellular concrete layer with a specific gravity of 0.6 to 0.8 integrally formed on at least one side of the mortar layer. Board.
JP1986104418U 1986-07-08 1986-07-08 Expired JPH0446408Y2 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP1986104418U JPH0446408Y2 (en) 1986-07-08 1986-07-08

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP1986104418U JPH0446408Y2 (en) 1986-07-08 1986-07-08

Publications (2)

Publication Number Publication Date
JPS6310120U JPS6310120U (en) 1988-01-23
JPH0446408Y2 true JPH0446408Y2 (en) 1992-10-30

Family

ID=30977893

Family Applications (1)

Application Number Title Priority Date Filing Date
JP1986104418U Expired JPH0446408Y2 (en) 1986-07-08 1986-07-08

Country Status (1)

Country Link
JP (1) JPH0446408Y2 (en)

Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5363428A (en) * 1976-02-06 1978-06-06 Nippon Sheet Glass Co Ltd Manufacture of foamy concrete plate having glass fiberrreinforced cement surface layer
JPS6013159A (en) * 1983-07-01 1985-01-23 旭化成株式会社 Light weight aerated concrete panel and production thereof

Family Cites Families (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS61118729U (en) * 1985-01-09 1986-07-26

Patent Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5363428A (en) * 1976-02-06 1978-06-06 Nippon Sheet Glass Co Ltd Manufacture of foamy concrete plate having glass fiberrreinforced cement surface layer
JPS6013159A (en) * 1983-07-01 1985-01-23 旭化成株式会社 Light weight aerated concrete panel and production thereof

Also Published As

Publication number Publication date
JPS6310120U (en) 1988-01-23

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