JP2002048694A - Test method for water permeability of constructional material - Google Patents
Test method for water permeability of constructional materialInfo
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- JP2002048694A JP2002048694A JP2000233311A JP2000233311A JP2002048694A JP 2002048694 A JP2002048694 A JP 2002048694A JP 2000233311 A JP2000233311 A JP 2000233311A JP 2000233311 A JP2000233311 A JP 2000233311A JP 2002048694 A JP2002048694 A JP 2002048694A
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- water
- water permeability
- test
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Abstract
Description
【０００１】[0001]
【発明の属する技術分野】本発明は建築用材料の透水性
試験方法に関する。The present invention relates to a method for testing the permeability of building materials.
【０００２】[0002]
【従来の技術】従来、建築用材料の透水性試験方法は、
ＪＩＳ Ａ ６９０９ 建築用仕上塗材の中で透水試験
Ｂ法により行われている。2. Description of the Related Art Conventionally, a method for testing the water permeability of a building material is as follows.
JIS A 6909 The water permeability test is carried out in the finish coating material for construction by the method B.
【０００３】しかし、上記の方法では、図７に示すよう
に、試験体１０Ｂ上に透水試験器具５０Ｂ（ロート５１
Ｂとメスピペット５２Ｂを連結用管５５Ｂで連結したも
の）をシリコーンシーリング材６０Ｂによって止め付
け、４８時間以上放置した後、２０±２℃の水を試験体
の表面から高さｈｂ＝約２５０ｍｍまで入れ、その時の
水頭の高さと２４時間後の水頭の高さとの差を求め、透
水量として示される。この方法では試験体に水頭分の水
圧がかかるため、無圧に近い水にしか効果を発揮しない
ような弱い防水処理を施したものに対しては明確な耐透
水性評価ができない。例えば、図８に示すように、ＪＩ
Ｓ Ａ ６９０９ 建築用仕上塗材の透水試験Ｂ法によ
り試験体Ａ（防水処理なし）と試験体Ｂ（僅かに防水処
理をしたもの）の試験時間１〜５時間の間の透水量を測
定したものであるが、殆ど差が認められずバラツキが大
きいという問題点があった。However, in the above method, as shown in FIG. 7, a water permeability test device 50B (a funnel 51) is placed on a test body 10B.
B and the pipette 52B are connected by the connecting pipe 55B) with the silicone sealing material 60B and left for 48 hours or more, and then water of 20 ± 2 ° C. is applied from the surface of the specimen to a height hb = about 250 mm. The difference between the height of the water head at that time and the height of the water head after 24 hours is obtained, and the difference is shown as the water permeability. In this method, since the water pressure equivalent to the water head is applied to the test body, it is not possible to make a clear evaluation of the water permeability of a material that has been subjected to a weak waterproof treatment that is effective only for water near no pressure. For example, as shown in FIG.
SA 6909 The water permeability of the test specimen A (no waterproof treatment) and the test specimen B (slightly waterproofed) during the test time of 1 to 5 hours was measured by the water permeability test B method of the architectural finish coating material. However, there was a problem that there was little difference and the variation was large.
【０００４】また、ＪＩＳ Ａ ６９０９ 建築用仕上
塗材の透水試験Ｂ法に規定されるような透水試験器具を
立てて建築用材料の透水性を測定する方法は水平面にお
いた材料の測定は可能だが、建てられた後の住宅外壁材
のような水平でない面での透水量の測定はできないとい
う問題があった。また、ＪＩＳ Ａ ６９０９ 建築用
仕上塗材の透水試験Ｂ法では２４時間後の透水量（減水
量）を測定すると規定されており、時間がかかるという
問題点があった。[0004] In addition, a method of measuring the water permeability of a building material by setting up a water permeability test instrument as specified in JIS A 6909, a water permeability test B method for a building finish, can measure the material on a horizontal plane. However, there is a problem that it is not possible to measure the water permeability on a non-horizontal surface such as a house exterior wall material after the building has been built. In addition, JIS A 6909 The water permeability test (method of water reduction) after 24 hours is stipulated in the water permeability test B method of the finish coating material for building, and there is a problem that it takes time.
【０００５】[0005]
【発明が解決しようとする課題】本発明は、上記欠点に
鑑みてなされたものであって、その目的とするところ
は、無圧に近い水にしか効果を発揮しないような弱い防
水処理を施した建築用材料の透水性の評価が短時間でで
き、また水平面にない建築用材料の透水性試験方法を提
供することにある。SUMMARY OF THE INVENTION The present invention has been made in view of the above-mentioned drawbacks, and has as its object to provide a weak waterproofing treatment that is effective only in near-no-pressure water. It is an object of the present invention to provide a method for testing the permeability of a building material which can be evaluated in a short time and which is not on a horizontal surface.
【０００６】[0006]
【課題を解決するための手段】以下本発明を詳細に説明
する。請求項１記載の建築用材料の透水性試験方法は、
透水性試験器具である容器に一定量の水を満たし、その
中に水面より所定寸法高くなるように架台を設置し、架
台上に親水性布を、架台を跨いで親水性布の両端が十分
に水に浸かるように、また架台と親水性布との間に空気
が入らないように被せ、その親水性布の上に木口面を防
水処理した重量既知の試験片を載せ所定時間経過後の試
験片の重量から重量変化量を測定することにより透水性
を評価することを特徴とする。Hereinafter, the present invention will be described in detail. The method for testing water permeability of a building material according to claim 1,
A container that is a water permeability test device is filled with a certain amount of water, and a gantry is installed in the container so as to be higher than the water surface by a predetermined dimension. So as to be immersed in water, and put air between the pedestal and the hydrophilic cloth, and place a test piece with a known weight with a waterproof finish on the front of the hydrophilic cloth. It is characterized in that the water permeability is evaluated by measuring the weight change amount from the weight of the test piece.
【０００７】親水性布としては、ガーゼ、不織布、フェ
ルト等吸湿性に優れたものであればよく、特にガーゼが
安価であり好ましい。As the hydrophilic cloth, gauze, non-woven fabric, felt and the like having good hygroscopicity may be used, and gauze is particularly preferred because it is inexpensive.
【０００８】請求項２記載の建築用材料の透水性試験方
法は、被測定材料の被測定面に透水性試験器具をあてが
って、透水性を評価する建築用材料の透水性試験方法で
あって、透水性試験器具は一端側が開口された筒状の容
器で他端側には垂直に伸びる筒状の測定部を有するもの
であり、該開口側を垂直面又は傾斜面上の被測定材料に
取付け、開口の周辺の被測定材料との間をシールし、該
透水性試験器具の測定部の上部まで水を満たし、所定時
間経過後の水位変化を測定することにより透水性を評価
することを特徴とする。According to a second aspect of the present invention, there is provided a method for testing the permeability of a building material in which a device for measuring the permeability is applied to a surface to be measured of the material to be measured to evaluate the water permeability. The water-permeability test device is a cylindrical container having one end opened, and has a cylindrical measuring portion extending vertically at the other end, and the opening is formed on a material to be measured on a vertical surface or an inclined surface. Mounting, sealing between the material to be measured around the opening, filling the upper part of the measuring part of the water permeability test instrument with water, and evaluating the water permeability by measuring the water level change after a predetermined time has passed. Features.
【０００９】[0009]
【作用】請求項１記載の建築用材料の透水性試験方法
は、親水性布の上に木口面を防水処理した重量既知の試
験片を載せ所定時間（例えば３０分）経過後の試験片の
重量から重量変化量を測定する方法であるので、ＪＩＳ
Ａ ６９０９ ６．１３透水試験Ｂ法におけるような
水頭圧がかかることがなく、無圧状態での透水性試験方
法であり、弱い防水処理を施した建築用材料においても
明確な透水性の差を得ることができる。また、ＪＩＳ
Ａ ６９０９ ６．１３透水試験Ｂ法に比べて短時間で
試験結果が得られる。また、親水性布がガーゼであるの
で安価である。According to the method for testing the water permeability of a building material according to the first aspect, a test piece having a known weight and a water-proofed surface of the wood is placed on a hydrophilic cloth and the test piece after a predetermined time (for example, 30 minutes) has passed. Since it is a method of measuring the weight change from the weight, JIS
A 6909 6.13 Water permeability test This is a water permeability test method without applying a head pressure as in the method B, and in a no-pressure state, and a clear difference in water permeability even in a building material subjected to a weak waterproof treatment. Obtainable. Also, JIS
A 6909 6.13 Permeability test A test result can be obtained in a shorter time than the B method. Also, since the hydrophilic cloth is gauze, it is inexpensive.
【００１０】請求項２記載の建築用材料の透水性試験方
法は、建物の外壁材のような水平でない面に対して直接
試験する事ができる。また、事前に実験室的に被測定材
料の水平でない面に対する透水量の時間変化を取ること
で現場での測定時間が短くても、透水量の時間変化を推
定することができ、約２時間程度の測定時間でも２４時
間後の透水量レベルの推定が可能である。このため、居
住者のいる建物の外壁や、離れた場所にある建築用材料
の測定も容易になる。The method for testing the permeability of a building material according to claim 2 can directly test a non-horizontal surface such as an outer wall material of a building. In addition, even if the measurement time at the site is short, it is possible to estimate the time change of the water permeability by taking the time change of the water permeability with respect to the non-horizontal surface of the material to be measured in advance in the laboratory. It is possible to estimate the water permeation level after 24 hours even with a measurement time of the order. For this reason, it becomes easy to measure the outer wall of a building where a resident is located or a building material at a remote location.
【００１１】[0011]
【発明の実施の形態】次に、本発明の実施の形態を図に
基づいて説明する。図２は請求項１に記載の発明の建築
用材料の透水性試験方法を示し、（イ）は透水性試験器
具の断面図、（ロ）は試験器具の斜視図である。図３は
上記試験方法で試験した結果を示すグラフである。Next, an embodiment of the present invention will be described with reference to the drawings. FIG. 2 shows a method for testing the water permeability of a building material according to the first aspect of the present invention. (A) is a cross-sectional view of a water-permeability test device, and (B) is a perspective view of the test device. FIG. 3 is a graph showing the results of the test performed by the above test method.
【００１２】本発明の建築用材料の透水性試験方法は、
以下に示す手順で行われる。 （１）試験器具の準備 図２に示すように、トレイ５０内に架台２０として断面
３．８ｃｍ×８．９ｃｍのツーバイフォー材を入れ、台
上面が水面４０よりｈ＝２ｃｍ高くなるように水を入れ
る。次に２重に折り重ねた幅３０ｃｍのガーゼ３０（日
本薬局方ガーゼタイプＩ）を、架台２０を跨いで両端が
十分水に浸かるように被せる。この時、ガーゼ３０を事
前に湿らせておき、ガーゼ３０と架台２０上面との間に
空気が入らないように架台２０上面に密着させる。１時
間放置して、ガーゼの吸水状態を一様にする。The method for testing the water permeability of a building material according to the present invention comprises:
This is performed according to the following procedure. (1) Preparation of Test Apparatus As shown in FIG. 2, a two-by-four material having a cross section of 3.8 cm × 8.9 cm was placed as a gantry 20 in a tray 50, and water was placed so that the height of the pedestal surface was h = 2 cm higher than the water surface 40. Put in. Next, a gauze 30 (gauze type I, Japanese Pharmacopoeia) having a width of 30 cm that is double folded is put on the gantry 20 so that both ends are sufficiently immersed in water. At this time, the gauze 30 is moistened in advance, and is brought into close contact with the upper surface of the gantry 20 so that air does not enter between the gauze 30 and the upper surface of the gantry 20. The gauze is allowed to stand for one hour to make the water absorption state of the gauze uniform.
【００１３】（２）試験片の準備 試験に供する外壁材から試験片１０を切り出す。寸法は
厚さ１．６ｃｍ、（長さ×幅）を（５ｃｍ×５ｃｍ）と
する。その後初期重量ｗ0 を測定する。次いで、試験片
１０の木口面にブチルゴムテープ貼り又はエポキシ樹脂
塗布により防水処理を行う。（試験片の吸水側の反対側
は特に処理は必要ない）。その後木口処理後の重量ｗ1
を測定する。(2) Preparation of Test Piece A test piece 10 is cut out from an outer wall material to be subjected to a test. The dimensions are 1.6 cm thick and (length x width) is (5 cm x 5 cm). Thereafter, the initial weight w 0 is measured. Next, a waterproof treatment is performed on the tip of the test piece 10 by applying a butyl rubber tape or applying an epoxy resin. (The opposite side of the water absorption side of the test piece does not require any special treatment.) After that, the weight w 1 after kiguchi processing
Is measured.
【００１４】（３）初期含水率の測定 試験片１０を切り出した外壁材の近傍から、（長さ×
幅）を（２０ｃｍ×１０ｃｍ）の板を切り出す。その後
初期重量Ｗａを測定する。１０５℃の乾燥機に８時間以
上入れて絶乾させ、その後絶乾重量Ｗｂを測定する。初
期含水率（Ｚ）を算出する。 Ｚ＝（Ｗａ−Ｗ
ｂ）／Ｗｂ(3) Measurement of Initial Moisture Content From the vicinity of the outer wall material from which the test piece 10 was cut, (length × length)
Cut out a plate (width) of (20 cm × 10 cm). Thereafter, the initial weight Wa is measured. The sample is put in a dryer at 105 ° C. for 8 hours or more to be absolutely dried, and then the absolute dry weight Wb is measured. Calculate the initial moisture content (Z). Z = (Wa-W
b) / Wb
【００１５】（４）吸水量の測定 試験は、室温２２℃、相対湿度３０〜９０％の条件で行
う。図２（ロ）に示すように、試験器具５０の架台２０
及びガーゼ３０の上に試験面を下にして試験片１０を載
せる。試験片１０の間隔は１ｃｍ以上空ける。３０分間
放置後試験片を取り出し、不織布に軽く押し当て、付着
水を取り除き、吸水後重量Ｗ2 を測定する。(4) Measurement of Water Absorption The test is performed under the conditions of room temperature 22 ° C. and relative humidity 30 to 90%. As shown in FIG.
The test piece 10 is placed on the gauze 30 with the test surface facing down. The interval between the test pieces 10 is 1 cm or more. After standing for 30 minutes, the test piece is taken out, gently pressed against the nonwoven fabric to remove adhering water, and after absorbing water, the weight W 2 is measured.
【００１６】（５）含水率変化量の算出 下式により、各試験片の含水率変化量（Ｘ）を算出す
る。 Ｘ＝吸水量／絶乾重量＝（Ｗ2 −ｗ1 ）／｛ｗ0 ／（１
＋Ｚ）｝(5) Calculation of Water Content Change The water content change (X) of each test piece is calculated by the following equation. X = water absorption / absolute dry weight = (W 2 −w 1 ) / ｛w 0 / (1
+ Z)｝
【００１７】図３に示すように、試験体Ａは防水処理な
しの外壁材から切り出した試験片であり、試験体Ｂは僅
かに防水処理をした外壁材から切り出した試験片の含水
率上昇率（重量％）を比較したものである。グラフに示
すように、試験体Ａ（１）に比べて試験体Ｂ（２）の含
水率上昇率が明らかに低いことが判る。尚、各点におけ
る上下の幅は各試験片の±３σを示し各点はその平均値
である。即ち、±３σに比べて試験体Ａ（１）と試験体
Ｂ（２）とは有為な差であることが判る。As shown in FIG. 3, the specimen A is a test piece cut from the outer wall material without waterproof treatment, and the test specimen B is a water content increase rate of the test piece cut from the slightly waterproof outer wall material. (% By weight). As shown in the graph, it can be seen that the increase rate of the water content of the test piece B (2) is clearly lower than that of the test piece A (1). The vertical width at each point indicates ± 3σ of each test piece, and each point is the average value. That is, it can be seen that the specimen A (1) and the specimen B (2) are significant differences compared to ± 3σ.
【００１８】図４は請求項２に記載の発明の建築用材料
の透水性試験方法を示し、（イ）は透水性試験器具の建
物の外壁材に取付けた状態を示す断面図、（ロ）は試験
器具の斜視図である。図５は上記試験方法で試験した結
果を示すグラフである。図６はＪＩＳ Ａ ６９０９
建築用仕上塗材の透水試験Ｂ法で試験した結果を示すグ
ラフである。FIG. 4 shows a method for testing the water permeability of a building material according to the second aspect of the present invention. FIG. 4 (a) is a cross-sectional view showing a state in which a water permeability test instrument is attached to an outer wall of a building. FIG. 3 is a perspective view of a test device. FIG. 5 is a graph showing the results of the test performed by the above test method. FIG. 6 shows JIS A 6909.
It is a graph which shows the result of having tested by the water permeability test B method of the finish coating material for construction.
【００１９】本発明の建築用材料の透水性試験方法は、
以下に示す手順で行われる。図３に示すように、試験器
具５０Ａは直径ｈｃ＝７５ｍｍの円筒状の本体５１の一
端側を建物の外壁１０Ａに直接取付ける。その際円筒状
の本体５１の一端側と外壁１０Ａとの間をロウ、粘土等
の測定後きれいに取り除けるような材料６０を用いて固
定する。試験器具５０Ａの他端側には目盛りの付いたシ
リンダー５２が取付けられ、シリンダー５２の先端部分
には倒れ止め５４のリング５３により垂直に保持され
る。The method for testing the water permeability of a building material according to the present invention comprises:
This is performed according to the following procedure. As shown in FIG. 3, the test device 50A is configured such that one end side of a cylindrical main body 51 having a diameter hc = 75 mm is directly attached to an outer wall 10A of a building. At that time, the space between one end side of the cylindrical main body 51 and the outer wall 10A is fixed by using a material 60 such as wax or clay that can be removed cleanly after measurement. A graduated cylinder 52 is attached to the other end of the test instrument 50A, and the tip of the cylinder 52 is held vertically by a ring 53 of a stopper 54.
【００２０】試験器具５０Ａを建物の外壁１０Ａに取付
けた後、シリンダー５２の先端より水を入れ、円筒状の
本体５１の中心高さからシリンダー５２の上部目盛り迄
の高さまで約ｈａ＝２５０ｍｍになるように注水する。
一定時間経過後の水位の変化を読み取り透水量（単位：
ｍｌ）を算出する。After the test device 50A is attached to the outer wall 10A of the building, water is poured from the tip of the cylinder 52, and the height from the center height of the cylindrical main body 51 to the upper scale of the cylinder 52 becomes about ha = 250 mm. Pour water as shown.
The change in water level after a certain period of time is read and the water permeability (unit:
ml).
【００２１】図４に示すように、１は耐透水性レベル１
（低）の外壁材、２は耐透水性レベル２（中）の外壁
材、３は耐透水性レベル３（高）の外壁材の時間経過
（時間）と透水量（単位：ｍｌ）の関係を示すグラフで
ある。グラフから明らかなように、耐透水性レベルの程
度の差により透水量に違いのあることが判る。As shown in FIG. 4, 1 is a water resistance level 1
(Low) outer wall material, 2 is the outer wall material having a water resistance level 2 (medium), 3 is the relationship between the time lapse (time) and the water permeability (unit: ml) of the outer wall material having a water resistance level 3 (high) FIG. As is clear from the graph, it can be seen that there is a difference in the amount of water permeability due to the difference in the level of the water resistance.
【００２２】また、図６に示すように、事前にＪＩＳ
Ａ ６９０９ 建築用仕上塗材の透水試験Ｂ法で上記耐
透水性レベル１（低）〜耐透水性レベル３（高）の外壁
材の時間経過（時間）と透水量（単位：ｍｌ）の関係を
取得しておく。現場で図３に示す本発明の建築用材料の
透水性試験方法で垂直面の外壁材の透水量を測定する。
得られた透水量と、図５、図６の関係からＪＩＳ Ａ
６９０９ 建築用仕上塗材の透水試験Ｂ法での透水量を
推定する。また、現場での測定時間を短くても、透水量
の時間変化を推定することができ、約２時間程度の測定
時間でも２４時間後の透水量レベルの推定が可能であ
る。このため、居住者のいる建物の外壁や、離れた場所
にある建築用材料の測定も容易になる。Also, as shown in FIG.
A 6909 Relationship between the passage of time (time) and the amount of water permeation (unit: ml) of the outer wall material having the water resistance level 1 (low) to water resistance level 3 (high) according to the water permeability test B of the building finish coating material. Get it. At the site, the water permeability of the outer wall material on the vertical surface is measured by the method for testing the water permeability of building materials of the present invention shown in FIG.
From the relationship between the obtained water permeability and FIGS. 5 and 6, JIS A
6909 Estimate the water permeability of the finish coating material for building construction by the water permeability test B method. Further, even if the measurement time at the site is short, it is possible to estimate the time change of the water permeability, and even if the measurement time is about 2 hours, it is possible to estimate the water permeability level after 24 hours. For this reason, it becomes easy to measure the outer wall of a building where a resident is located or a building material at a remote location.
【００２３】（実施例の作用）請求項１記載の建築用材
料の透水性試験方法は、簡易な器具であり、吸湿したガ
ーゼの上に木口面を防水処理した試験片を複数載せ３０
分以上経過後の試験片の重量変化量を測定する方法であ
るので、ＪＩＳ Ａ ６９０９ ６．１３透水試験Ｂ法
におけるような水頭圧がかかることがなく、無圧状態で
の透水性試験方法であり、弱い防水処理を施した建築用
材料においても明確な透水性の差を得ることができる。
複数の試料を同時に試験することができ、簡便で効率的
な試験方法である。また、ＪＩＳＡ ６９０９ ６．１
３透水試験Ｂ法に比べて短時間で試験結果が得られる。
また、吸湿材がガーゼであるので安価である。(Effect of the embodiment) The method for testing the permeability of building materials according to claim 1 is a simple tool, in which a plurality of test pieces having a wood-mouth surface subjected to waterproof treatment are placed on moisture-absorbing gauze.
This method measures the weight change of the test piece after a lapse of more than one minute, so that the water head pressure is not applied as in the JIS A 6909 6.13 water permeability test method B, and the water permeability test method without pressure is used. In addition, a clear difference in water permeability can be obtained even with a weakly waterproofed building material.
It is a simple and efficient test method that can test multiple samples simultaneously. Also, JISA 6909 6.1
(3) Test results can be obtained in a shorter time than in the permeability test B method.
In addition, since the hygroscopic material is gauze, it is inexpensive.
【００２４】請求項２記載の建築用材料の透水性試験方
法は、建物の外壁材のような水平でない面に対して直接
試験する事ができる。また、事前にＪＩＳＡ ６９０９
６．１３透水試験Ｂ法で被測定材料の水平面に対する
透水量の時間変化及び水平でない面の請求項２記載の建
築用材料の透水性試験方法で透水量の時間変化を取るこ
とで両試験方法間の相関関係を把握することにより、現
場で測定時間が短くても、透水量の時間変化を推定する
ことができ、約２時間程度の測定時間でも２４時間後の
透水量レベルの推定が可能である。このため、居住者の
いる建物の外壁や、離れた場所にある建築用材料の測定
も容易になる。The method for testing the water permeability of a building material according to claim 2 can directly test a non-horizontal surface such as an outer wall material of a building. In addition, JISA 6909 must be
6.13 Permeability test The time variation of the permeability of the material to be measured with respect to the horizontal plane and the time variation of the permeability of the non-horizontal surface according to the method of claim 2 are determined by the time variation of the permeability in the method B. By grasping the correlation between the two, even if the measurement time is short at the site, it is possible to estimate the time change of the water permeability, and even if the measurement time is about 2 hours, it is possible to estimate the water permeability level after 24 hours It is. For this reason, it becomes easy to measure the outer wall of a building where a resident is located or a building material at a remote location.
【００２５】[0025]
【発明の効果】本発明の試験法は、上述の通りであり、
簡便な器具で短時間に防水処理レベルの評価ができる。
また、建築後の建物の外壁材のような水平でないものに
対しても透水レベルを短時間で測定することができ、現
場で実施することで信頼を得ることができる。The test method of the present invention is as described above,
The level of waterproof treatment can be evaluated in a short time with a simple device.
In addition, the permeability level can be measured in a short time even for non-horizontal materials such as the outer wall material of a building after construction, and reliability can be obtained by performing the measurement on site.
【図１】請求項１及び２に記載の発明の建築用材料の透
水性試験方法を示し、（イ）は請求項１記載の透水性試
験器具の断面図、（ロ）は請求項１記載の試験器具の斜
視図、（ハ）は請求項２に記載の透水性試験器具の建物
の外壁材に取付けた状態を示す断面図、（ニ）は請求項
２に記載試験器具の斜視図である。FIG. 1 shows a method for testing the water permeability of a building material according to the first and second aspects of the invention, wherein (a) is a cross-sectional view of the water permeability test apparatus according to the first aspect, and (b) is a first aspect. (C) is a cross-sectional view showing a state in which the water-permeable test device according to claim 2 is attached to an outer wall of a building, and (d) is a perspective view of the test device according to claim 2. is there.
【図２】請求項１に記載の発明の建築用材料の透水性試
験方法を示し、（イ）は透水性試験器具の断面図、
（ロ）は試験器具の斜視図である。FIG. 2 shows a method for testing water permeability of a building material according to the invention of claim 1, wherein (a) is a cross-sectional view of a water permeability test instrument,
(B) is a perspective view of the test device.
【図３】上記試験方法で試験した結果を示すグラフであ
る。FIG. 3 is a graph showing the results of a test performed by the above test method.
【図４】請求項２に記載の発明の建築用材料の透水性試
験方法を示し、（イ）は透水性試験器具の建物の外壁材
に取付けた状態を示す断面図、（ロ）は試験器具の斜視
図である。FIG. 4 shows a method for testing the water permeability of a building material according to the second aspect of the present invention, wherein (a) is a cross-sectional view showing a state in which a water permeability test device is attached to an outer wall of a building, and (b) is a test. It is a perspective view of an apparatus.
【図５】上記試験方法で試験した結果を示すグラフであ
る。FIG. 5 is a graph showing the results of a test performed by the above test method.
【図６】ＪＩＳ Ａ ６９０９ 建築用仕上塗材の透水
試験Ｂ法で試験した結果を示すグラフである。FIG. 6 is a graph showing the results of a JIS A 6909 architectural finish coating material tested by a water permeability test B method.
【図７】ＪＩＳ Ａ ６９０９ 建築用仕上塗材の透水
試験Ｂ法の試験装置を示す断面図である。FIG. 7 is a cross-sectional view illustrating a test apparatus for a water permeability test B method of JIS A 6909 architectural finish coating material.
【図８】ＪＩＳ Ａ ６９０９ 建築用仕上塗材の透水
試験Ｂ法で試験した結果を示すグラフである。FIG. 8 is a graph showing the results of a JIS A 6909 architectural finish coating material tested by a water permeability test B method.
１０ 試験片 １０Ａ 外壁材 ２０ 架台 ３０ ガーゼ ４０ 水面 ５０ 試験器具 ５０Ａ 試験器具（垂直式） ５０Ｂ 試験器具（ＪＩＳ法） ６０ シーリング材 Reference Signs List 10 test piece 10A outer wall material 20 gantry 30 gauze 40 water surface 50 test equipment 50A test equipment (vertical type) 50B test equipment (JIS method) 60 sealing material
フロントページの続き (72)発明者 野原 和宏 茨城県つくば市和台32 積水化学工業株式 会社内Continued on the front page (72) Inventor Kazuhiro Nohara 32 Wadai, Tsukuba, Ibaraki Sekisui Chemical Co., Ltd.
Claims (2)
を満たし、その中に水面より所定寸法高くなるように架
台を設置し、架台上に親水性布を、架台を跨いで親水性
布の両端が十分に水に浸かるように、また架台と親水性
布との間に空気が入らないように被せ、その親水性布の
上に木口面を防水処理した重量既知の試験片を載せ所定
時間経過後の試験片の重量から重量変化量を測定するこ
とにより透水性を評価することを特徴とする建築用材料
の透水性試験方法。1. A container, which is a water-permeability test device, is filled with a certain amount of water, and a gantry is installed therein so as to be higher than a water surface by a predetermined dimension. Place the cloth so that both ends are sufficiently immersed in water and air is not allowed to enter between the base and the hydrophilic cloth. A method for testing water permeability of a building material, wherein water permeability is evaluated by measuring a weight change amount from a weight of a test piece after a predetermined time has elapsed.
をあてがって、透水性を評価する建築用材料の透水性試
験方法であって、透水性試験器具は一端側が開口された
筒状の容器で他端側には垂直に伸びる筒状の測定部を有
するものであり、該開口側を垂直面又は傾斜面上の被測
定材料に取付け、開口の周辺の被測定材料との間をシー
ルし、該透水性試験器具の測定部の上部まで水を満た
し、所定時間経過後の水位変化を測定することにより透
水性を評価することを特徴とする建築用材料の透水性試
験方法。2. A water permeability test method for a building material in which a water permeability test device is applied to a surface to be measured of a material to be measured to evaluate water permeability, wherein the water permeability test device has a cylindrical shape with one end opened. The other end of the container has a vertically extending cylindrical measuring portion, the opening side is attached to the material to be measured on a vertical surface or an inclined surface, and a gap between the material to be measured around the opening is provided. A method for testing water permeability of a building material, wherein the water permeability is evaluated by sealing, filling the upper part of the measuring part of the water permeability test instrument with water, and measuring a water level change after a predetermined time has elapsed.
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| JP2000233311A JP3739256B2 (en) | 2000-08-01 | 2000-08-01 | Permeability test method for building materials |
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|---|---|---|---|
| JP2000233311A JP3739256B2 (en) | 2000-08-01 | 2000-08-01 | Permeability test method for building materials |
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| JP3739256B2 JP3739256B2 (en) | 2006-01-25 |
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