A7 . __B7 五、發明説明（:/ ) 本發明係有關一種建築物表'面縫隙處理工法，尤指一 種施工且處理後之建築物表面美觀耐久，並具極佳之環境 適應性之縫隙處理工法者。 按，營建工程上最棘手處理的莫過於建築物表面的縫 5 隙，此種縫隙包括龜裂（crack)或接縫；尤其近年來之建築 物朝向高層化趨勢，而為了減輕大樓之負載，其牆面大都 採用輕質之石膏板或水泥板等薄板，配合模組化骨架施工， 以達方便組裝及降低大樓之重力負苛。 然，利用水泥板等薄板施工而成為牆面時，其最大問 10 題點在於各水泥板之間或水泥板與樑柱、樓板之間會有 接縫，而為了因應熱脹冷縮因素，該接縫之間距（d)—般約 在1〜2mm左右，於是另需以填縫劑填補於接縫中或是在 接縫處黏貼飾帶，使建築物表面平整美觀；惟査，目前習用 之填縫劑或飾帶，其在實際使用時，卻各別仍有不可或缺 15 之問題點，兹將其各別之缺失詳細析述如后： 一、PU填縫材：係如第一圖所示，在建築物表面水泥 板（A)的接縫間（d),灌注PU填縫材（1 1)補平；惟査，這種填 補方法，在剛完工時，或許沒有任何問題，但因水泥板（A) 在施工時，會吸收到泥策等水份，所以內部較潮濕膨脹，隨 20 著時間一久以後，水泥板（A)內部水份漸漸散發，於是水泥 板（A)內部會有些許收縮，致使對接縫間距（d)產生拉張作 用，迫使PU填i材（11)呈現下凹約1mm以上的凹陷狀（12)， 於是原先塗佈在PU填縫材（11)上方之塗料（圖未示），亦 會隨之下陷，而在接縫處形成龜裂（crack)現象，為其最大 第3頁 本紙張尺度適用中國國家標準（CNS ) Λ4規格（210Χ297公釐） 請 間 背 面 Λ 注A7. __B7 V. Description of the invention (: /) The present invention relates to a method for the treatment of gaps on the surface of a building, especially a beautiful and durable construction surface with excellent environmental adaptability. Workers. According to the construction project, the most difficult to deal with is the gap on the surface of the building. Such gaps include cracks or joints. Especially in recent years, buildings have become more high-rise. In order to reduce the load on the building, Most of its walls are made of thin gypsum board or cement board, etc., combined with the construction of the modular framework, in order to facilitate assembly and reduce the building's gravity load. However, the biggest problem when using thin plates such as cement slabs to construct a wall is that there will be joints between the cement slabs or between the cement slabs and the beams, columns, and floors. In order to respond to thermal expansion and contraction, The distance between the joints (d)-generally about 1 ~ 2mm, so it is necessary to fill the joints with a sealant or paste the decorative tape at the joints to make the surface of the building smooth and beautiful; The conventional joint sealers or decorative tapes still have indispensable problems when they are actually used, and their respective shortcomings are described in detail as follows: 1. PU joint sealants: As shown in the first picture, in the joints (d) of the cement surface (A) on the surface of the building, the joints are filled with PU jointing materials (1 1); however, this method of filling may not Any problem, but because the cement board (A) will absorb water such as mud plan during construction, the interior will be wet and swell. After 20 years, the water inside the cement board (A) will gradually dissipate, so the cement board (A) There will be a slight shrinkage inside, which will cause a tension effect on the joint distance (d), forcing PU to fill the material ( 11) It has a concave shape (12) with a depression of about 1mm or more, so the paint (not shown) that was originally applied on top of the PU filler (11) will also sag and form cracks at the joints. (Crack) phenomenon, the largest page 3 of this paper applies Chinese National Standard (CNS) Λ4 specification (210 × 297 mm) Please note on the back side Λ Note
I 奢 經濟部中央標準局員工消費合作社印製 經濟部中央標準局員工消費合作社印製 A 7 、 B7五、發明説明) 缺失。 二、 水性彈性樹脂：係如第二圖所示，在建築物表面 的接縫間（d)，填補水性彈性擀脂（13);龙査水性彈性樹脂 (13)的「乾縮率」大，因此要填平接縫（d)，至少需要施工 5 四次以上，不僅施工非常耗費時間，且其與PU填縫材（1 1) 相同，都會使塗料在接縫處表面產生凹陷龜裂之缺失》 三、 石膏土：係如第三圖所示，使用石膏土（14)當其 乾涸後會直接龜裂；亦使表層塗料隨之龜裂剝落。 四、 彈性纖維網：係如第四圖所示，在接縫（d)表面以 —彈性纖維網（15)披覆，然後再以利用披土等塗料（16)飾 平；惟査，彈性纖維網（15)有很多纖維孔隙，因此當塗料塗 佈後會滲入纖維孔內，使表面披土石膏化；是故，當水泥板 (A)產生拉張作用時，彈性纖維網（15)會從兩側處（B),或中 間處（C)撕裂，迫使整個表面之塗料（16)剝落。 五、 無彈性紙帶：如第五圖所示，在接縫處（d)表面以 一無彈性紙帶（17)披覆，然後表面再以披土等塗料（16)飾 平；惟査，此種方式，當拉張作用產生時，亦會從無彈性紙帶 (17)兩側處（B)或中間（C)撕裂；是故，亦缺失。 六、 此外，目前有業者直接使用AB膠填補縫 20隙（圖未示）；惟査AB膠的內應力極強，並大於水泥 板內部應力，致使水泥板內部應力無法由縫隙處釋出，迫 使在水泥板表面形成新的裂痕，為其最大缺失。 職是之故，本發明人乃針對上述問題點，積極加以研 究，並研發一種解決課題之處理工法。 10 15 第4頁 本紙張尺度適用中國國家標準（CNS ).A4規格（210X297公釐） (請先閱讀背面，^注意事項再填寫本頁) ώ -s° 經濟部中央標準局員工消費合作社印製 A7 B7 五、發明説明（5 ) 緣是，本發明之主要目的，係在提供一種建築g表縫 隙之處理工法，其具有施工便捷及不易龜裂，使表面常保 美觀耐久之功效增進者。 本發明之再一目的，則在提供一種建築物表面縫隙之 5 處理工法，其具有極佳環境適應性之功效者。 為使貴審査委員能對本發明之方法特徵及功效有 更具體的瞭解，茲舉較佳實施例，並配合圖式說明如后： (一）附圖說明： 第一圖係以習用PU填縫材填補之建築物表面示 ⑺ 意圖。 第二圓係以習用水性彈性樹脂填補之建築物表面示 意圖。 第三圖係以習用石膏土填補之建築物表面示意圖。 第四圖係以習用彈性纖維網施工之示意圖》 15 第五圖係以習用無彈性紙帶施工之示意圖。 第六圖係本發明之施工流程圖。 第七圖係本發明之一可行實施例的主要構造立體圖。 第八圖係本發明之一可行實施例的耐飾彈性薄層黏 著在建築物表面之示意圖。 2〇 第九圖係本發明之一可行實施例的耐飾彈性薄層固 定在建築物表面之示意圖》 第十圖係本發明之一使用狀態圖。 第十一圖係本發明另一使用狀態圖。 第十二圖係本發明之容許拉伸長度的測試數據 第5頁 本紙張尺度適用中國國家標準（CNS ) A4規格（210X297公釐） (請先閱讀背©-之注意事項再填寫本頁) 、νβI Luxury printed by the Consumer Cooperatives of the Central Standards Bureau of the Ministry of Economic Affairs Printed by the Consumer Cooperatives of the Central Standards Bureau of the Ministry of Economics A7, B7 V. Description of the invention) Missing. 2. Water-based elastic resin: As shown in the second figure, the water-based elastic rolling grease (13) is filled between the joints (d) on the building surface; Longcha water-based elastic resin (13) has a large "dry shrinkage rate". Therefore, to fill the seam (d), it needs to be applied at least 5 times or more. Not only is the construction very time consuming, but it is the same as the PU jointing material (1 1), which will cause the coating to generate cracks on the surface of the joint. The lack of "gypsum soil: As shown in the third picture, the use of gypsum soil (14) will crack directly when it dries; it also causes the surface coating to crack and peel. 4. Elastic fiber net: As shown in the fourth figure, the surface of the joint (d) is covered with -elastic fiber net (15), and then flattened with paint (16) using clay soil; however, it is elastic. The fiber web (15) has many fiber pores, so when the coating is applied, it will penetrate into the fiber pores and gypsum the surface; therefore, when the cement board (A) has a tensile effect, the elastic fiber web (15) It will tear from both sides (B) or middle (C), forcing the coating (16) on the entire surface to peel off. V. Inelastic paper tape: As shown in the fifth picture, the surface of the joint (d) is covered with an inelastic paper tape (17), and then the surface is flattened with paint (16) such as clay. In this way, when the tensioning effect occurs, it will also tear from the sides (B) or the middle (C) of the inelastic paper tape (17); therefore, it is also missing. 6. In addition, at present, some manufacturers directly use AB glue to fill the gap of 20 gaps (not shown); but the internal stress of AB glue is extremely strong and greater than the internal stress of the cement board, so that the internal stress of the cement board cannot be released from the gap. Forcing new cracks to form on the surface of the cement board is its biggest missing. For this reason, the present inventor is actively studying the above problems and developing a scientific and technological method to solve the problem. 10 15 Page 4 This paper size applies to Chinese National Standard (CNS). A4 size (210X297 mm) (Please read the back, ^ Note before filling out this page) FREE -s ° Printed by the Employees' Cooperatives of the Central Standards Bureau of the Ministry of Economic Affairs System A7 B7 V. Description of the invention (5) The main purpose of the present invention is to provide a technical method for the construction of the gap between the g surface of the building, which has the advantages of convenient construction and not easy cracking, so that the surface is always beautiful and durable. Yet another object of the present invention is to provide a method for treating surface cracks in buildings, which has excellent environmental adaptability. In order to enable your reviewing committee to have a more specific understanding of the features and effects of the method of the present invention, the preferred embodiment will be described with the illustrations as follows: (1) Description of the drawings: The first picture is to fill the gap with conventional PU The surface of the building filled with wood shows intention. The second circle is an illustration of the building surface filled with a water-based elastic resin. The third picture is a schematic diagram of the building surface filled with conventional gypsum soil. The fourth diagram is a schematic diagram of the construction with a conventional elastic fiber mesh. 15 The fifth diagram is a schematic diagram of the construction with a conventional inelastic paper tape. The sixth diagram is a construction flowchart of the present invention. The seventh diagram is a perspective view of the main structure of a feasible embodiment of the present invention. The eighth diagram is a schematic diagram of a durable elastic thin layer adhering to a building surface according to a possible embodiment of the present invention. 20 The ninth picture is a schematic diagram of a durable elastic thin layer fixed on a building surface according to one of the feasible embodiments of the present invention. The tenth picture is a use state diagram of the present invention. The eleventh figure is another use state diagram of the present invention. The twelfth figure is the test data of the allowable stretch length of the present invention. Page 5 The paper size is applicable to the Chinese National Standard (CNS) A4 specification (210X297 mm) (Please read the precautions on the back ©-before filling out this page) , Νβ
A7 ._B7_ 五、發明説明C孝） 圖表。. . 第十三圖係本發明之伸縮彈性區分佈示意圖 (二）圖號說明： (ll)PU填縫材 5 (12)凹陷部 水性彈性樹脂 (14) 石膏土 (15) 彈性纖維網 (16) 塗料 10 (17)無彈性紙帶 (2)耐蝕彈性薄層 (21) 彈性膠 (22) 離形紙 (23) 兩側處 15 首先，請參閱第六圖及第七〜九圖所示，本發明之一 較佳可行實施工法，其步驟包括： (a) ·首先，將建築物表面縫隙（D)之兩側予以整平，此 因水泥板（A)在施工後表面會有凹凸不平現象； 經濟部中央標準局員工消費合作社印裝 纖維 (4) 塗料 (5) 樑柱 (6) 樓板 (7) 流展性塗料 (A)水泥板 (C) 中央 (D) 縫隙 (請先閱讀背面之注意事項再填寫本頁) (b) .依縫隙（D)長度截取一段耐蝕彈性薄層（2);而該 20 耐蝕薄層（2)的寬度以60mm以上為較佳； (c) .該耐蝕性薄層（2)之內緣面預先設有黏著用之彈 性膠（21)，當然，最佳實施狀態，係該彈性膠（21)表面設有 離形紙（22)，當欲使用時，再將離形紙（22)撕去，使得耐蝕 彈性薄層（2)成為一種具自黏功能之薄片體； 第6頁 本紙張尺度逋用中國國家標準（CNS ) A4規格（210X297公釐） — A7 B7 五、發明説明) (d).將耐蝕薄彈性薄層（2)披覆黏著在縫隙（D)表面緣， 如第八圖所示之狀態者； m (e).接著，將耐蝕彈性薄層（2)之兩側〔23) 固定在 10 建築物表面；此一施工法有其必要性，然固定方式很 多，本發明所揭示之一較佳實施例，係在iTif彈性薄層（幻 的兩側處（23)，於成型時即熔接固著 性纖維（3)係比耐蝕性薄層（2)還要薄，並^其底面與耐蝕 彈性薄層（2)之底面切平，如此才能平整g覆在建築物表 面；然後利用硬固性黏膠（非彈性膠），將1^1纖維（3)固定； (f)·之後係如第九圖所示，將耐蝕薄層（2)兩側利 用白土或披土等披覆塗料（4)予μ補平，使其上方係呈平A7 ._B7_ V. Description of invention C filial pie chart. . The thirteenth figure is a schematic diagram of the distribution of the stretch elastic zone of the present invention (b) The description of the drawing number: (ll) PU jointing material 5 (12) Water-based elastic resin in the depression (14) Gypsum soil (15) Elastic fiber network ( 16) Coating 10 (17) Non-elastic paper tape (2) Corrosion-resistant elastic sheet (21) Elastic glue (22) Release paper (23) On both sides 15 First, please refer to the sixth and seventh to ninth figures As shown, one of the preferred and feasible implementation methods of the present invention includes the following steps: (a) · First, level both sides of the gap (D) on the surface of the building. This is because the surface of the cement slab (A) will be on the surface after construction. Bumps; printed fibers (4) coatings (5) beams (6) floor slabs (7) flowable coatings (A) cement boards (C) central (D) gaps (please (Read the precautions on the back before filling in this page) (b). Take a section of the corrosion-resistant elastic thin layer (2) according to the length of the gap (D); and the width of the 20 corrosion-resistant thin layer (2) is preferably 60mm or more; ( c). The inner edge surface of the corrosion-resistant thin layer (2) is provided with an elastic glue (21) for adhesion in advance. Of course, in the best implementation state, the surface of the elastic glue (21) is provided with a release adhesive. Paper (22), when you want to use it, tear off the release paper (22), so that the corrosion-resistant elastic thin layer (2) becomes a sheet with self-adhesive function; page 6 This paper uses the Chinese national standard (CNS) A4 specification (210X297 mm) — A7 B7 V. Description of the invention) (d). Cover the surface of the gap (D) with a thin, elastic thin layer of corrosion resistance (2), as shown in Figure 8 M; (e). Next, the two sides [23] of the corrosion-resistant elastic thin layer (2) are fixed on the surface of the building 10; this construction method is necessary, but there are many fixing methods, one of which is disclosed in the present invention. In a preferred embodiment, the elastic thin layer (23) on both sides of the iTif is fused, and the fixing fiber (3) is thinner than the corrosion-resistant thin layer (2) during molding, and the bottom surface thereof is Cut flat with the bottom surface of the corrosion-resistant elastic thin layer (2), so that g can be covered on the surface of the building. Then, the 1 ^ 1 fiber (3) is fixed by using hard solid adhesive (non-elastic adhesive); (f) · After that, as shown in the ninth figure, the two sides of the corrosion-resistant thin layer (2) are covered with a coating of white clay or terracotta (4) to μ, so that the upper part is flat.
(請先閲讀背面' 之注意事項再填寫本頁) 齊狀，而此一步驟順便可加強纖維（3)固定在.建築物 表面，此因披覆塗料（4)會滲入其布面之纖維孔，進而使其 與建築物穩穩結合固定； 15 (g).最後，在表層施予流展性塗料，諸如油漆、水泥漆 等，使其美化（圖未示）；而此處須說明的，該耐蝕彈性薄一層 (2)表面勿須披土即可直接上油漆或水泥漆，此因其表面 光滑平整且具有耐蝕功能，因此不怕油漆之侵蝕。 而，前述之耐蝕彈性薄層（2)係以PU材加上耐蝕原料 20 所構成之韌性可拉伸薄片體為較佳，當然等效材質所製成 者亦可；其寬度之裁切對於一般正常之縫隙（D)間距2mm 者，其寬度則以40〜60mm以上為較佳，當然其可依不同 縫隙間距而增減。惟如用寬度面積較大時，須如表面增設 微細透氣孔（圖未示），俾使覆蓋面內部之空氣能釋放出來， 第7頁 本紙張尺度適用中國國家標準（CNS ) A4規格（210X297公釐） 訂 經濟部中央標準局員工消費合作社印製 經濟部中央標準局貝工消費合作社印製 A7 B7 五、發明説明C5 ) 以避免將來膨鬆。 · _ 第十圖係本發明之一使用狀態示意圖，即在建築物表 面之縫隙處（D)，以上揭技術手段，將耐蝕彈性層（2)逐一黏 貼固定在縫隙（D)的表面周緣，其施工非常便捷，且具有極 5 佳之環境適應性；此如第十一圖所示，該耐蝕彈性薄層（2) 對於樑柱（5)與水泥板（A)之間的平面或垂直縫隙（D1)、 (D2)或是與樓板（6)之間的縫隙（D3);都可用耐蝕彈性薄 層（2)來處理貼平，最後再以流展性塗料（7)來美化表層；因 此，其對於各種不同環境皆方便施工使用。 10 請再回到第十圖所示，該建築物表面之縫隙（D)係因 兩片水泥板（A)之間的接縫所自然而成，發明人累積的施 工經驗發現，利用有接縫的水泥板（Aj作牆面之建築物，其 表面（A1)不易有RC牆面經常產生的不規則小裂痕，經研 究發現，此因水泥板（A)其內部應力因有縫隙（D)[約1〜 15 2mm]可以釋放所致；是故，如果可以有效處理好兩水泥板 (A)，或水泥板（A)與樑柱（5)或樓板（6)之間的縫隙（D)，則水 泥板所構成的牆面反而較一般的RC牆面更不易形成不 規格的小裂痕，基於如是原理，對於一般使用RC灌注或 粉光的牆面（R)，如預先在一定面積內施以1mm〜2mm的 20 縫隙（D)加以區隔，則再利用本發明之處理工法，在縫隙（D) 處加以處理，則上塗料之建築物表面，不易有小裂痕（t)產 生。此為本發明工法之可衍生應用之優點。 請再參閱第十二圖所示，本發明之耐蝕彈性薄層（2) 作容許拉伸長度試驗之數據圖表，由圖表中顯示，當20mm. 第8頁 本紙張尺度適用中國國家標準（CNS ),A4規格（210X297公釐） I.:----；—·—L—r-1'裝— (請先閲讀背面之注意事項再填寫本頁) '訂· 經濟部中央標準局員Η消費合作社印製 A7 . __^_ B7 _ 五、發明説明（:7Ί 寬度的耐蝕彈性薄層（2)，其可容許拉伸長度約為lmm,而 60mm的寬度時則可達6mm左右的容許拉伸長度，此數據 即表示如果是60mm的耐蝕彈性薄層（2),其拉張長度在 6mm以內，都不會斷裂，而本發明為取得絕對的安全值，該 5耐蝕彈性薄層（2)的寬度以在40〜60mm以上的寬度為較 佳。 又，本發明之所以能夠克服並解決習用填縫材及飾疖 的缺失，即是依據第十二圖之試驗數據加以應用所獲致的， 因此請參閱第十三圖，兹以一片寬度60mm的彈性薄 10層（2)作說明，該耐蝕彈性薄層（2)之兩側係為方式固 定在建築物表面，所以當兩片水泥板（A)拉張時，這二個位 置都不會撕裂，故其表面之塗料不會剝落，至於，該中間部 份約60mm的寬度是為彈性伸縮區，此因耐蝕彈性薄層（2) 具有彈性，且其底面黏著用之黏膠亦為彈性膠（21)，故當 15 縫隙（D)拉大1mm時，其平均分佈在耐蝕彈性薄層（2)單位 面積上的，僅有l/60mm的拉伸，因此l/60mm的拉伸對於 耐蝕彈性薄層（2)的內應力，雖然會有些微變化，但表層肉 眼並看不出來，所以塗佈在表面之塗料無剝落或產生裂痕 之虞。此亦為本發明之精髓所在，即將縫隙（D)無可避免 2〇 約1mm的拉張長度，平均分佈在60mm的表面上，使其均 勻稀釋以達表面耐久美觀，無虞產生凹陷或龜裂之功效增 進者。 是以，本發明與習用填縫材或飾布比較，具有如下之 差異性及増進功效之處： ____________第 9 頁__ 本紙張尺度適用中國國家標準（CNS ) A4規格（21〇Χ297公釐） —41. nn m nn an ί«· -I 1 - - - cl, 士n»^ m mu nn \'J (請先閲讀背面之注意事項再填寫本頁) 五、發明説明) A7 ______ B7 PU填縫材 其PU填縫材能填補的寬度非常有限，故當拉張 1 mm時，將迫使下凹約1 mm，使塗料剝裂 水性彈性樹脂 缺點同上，且其乾縮率大，須施工四、石次以h 不符經濟效益。 石膏土 表面會直接龜裂，致使塗料剝落並出現 裂痕。 彈性纖維網 施工前雖有彈性，但塗佈塗佈後會滲入孔內，使其 無彈性，致使拉張時，將由兩側或中間斷裂。 無彈性紙帶 因無彈性，所以拉張時，亦會由兩側或中央 斷裂。 鋼性AB膠 本身內應力太強，迫使建築物表面產生新 裂痕。 本發明 Φ兩側為驟$固性，所以不會撕裂，因此兩 側塗料不會龜裂。 ② 中央為彈性伸縮區，其單位面積僅變化約 l/60mm，因此塗料不會出現異狀或龜裂。 ③ 可確保表層美觀耐久。 ④ 施工便捷，環境適應性佳。 . 由以上分析得知，本發明不僅施工方便，且其處理工 請 先 閱 讀 背 面 之- 注 意 事- 項· 再 寫 本 頁 訂, 法可達預期功效增進，以防止表面龜裂現象產生，確具可 供產業利用性》 r 經濟部中央標準局員工消費合作社印製 第10頁 本紙張尺度適用中國國家標準（CNS ) A4規格（210X297公釐）(Please read the “Notes on the back side” before filling out this page), and this step can strengthen the fiber (3) fixed on the building surface, because the coating (4) will penetrate the fiber on the cloth 15 (g). Finally, beautify the surface with a flowable coating, such as paint, cement paint, etc. (not shown); and it must be explained here The surface of the thin layer of corrosion-resistant elasticity (2) can be directly coated with paint or cement paint without covering the soil. Because the surface is smooth and flat and has a corrosion-resistant function, it is not afraid of paint erosion. In addition, the aforementioned corrosion-resistant elastic thin layer (2) is preferably a tough stretchable sheet made of PU material and corrosion-resistant raw material 20, of course, the equivalent material can also be made; Generally, if the normal gap (D) is 2mm, the width should be more than 40 ~ 60mm. Of course, it can be increased or decreased according to different gaps. However, if the width area is large, it is necessary to add micro ventilation holes (not shown) on the surface so that the air inside the cover can be released. Page 7 This paper size applies the Chinese National Standard (CNS) A4 specification (210X297) (%) Order printed by the Consumer Standards Cooperative of the Central Standards Bureau of the Ministry of Economic Affairs. Printed by the Central Standards Bureau of the Ministry of Economic Affairs. Printed by the Shellfish Consumer Cooperatives. · _ The tenth diagram is a schematic diagram of the state of use of the present invention, that is, at the gap (D) on the surface of the building, the above-mentioned technical means are used to adhere and fix the corrosion-resistant elastic layer (2) one by one on the surface periphery of the gap (D). Its construction is very convenient and has excellent environmental adaptability; as shown in Figure 11, the corrosion-resistant elastic thin layer (2) is suitable for the plane or vertical gap between the beam and column (5) and the cement board (A). (D1), (D2) or the gap (D3) between the floor and the floor (6); all can be treated with the anti-corrosive elastic thin layer (2) for flattening, and finally the surface layer is beautified with the flowable coating (7); Therefore, it is convenient for construction and use in various environments. 10 Please return to the tenth figure. The gap (D) on the surface of the building is naturally formed by the joint between the two pieces of cement board (A). The construction experience accumulated by the inventor found that The cement board (Aj is used as a wall building, the surface (A1) is not easy to have irregular small cracks often generated by the RC wall. After research, it is found that the internal stress of the cement board (A) is due to the gap (D). ) [About 1 ~ 15 2mm] can be released; therefore, if the two concrete slabs (A), or the gap between the concrete slabs (A) and the beams and columns (5) or floor slabs (6) can be effectively treated ( D), the wall surface made of cement board is more difficult to form irregular cracks than the general RC wall surface. Based on the principle, for the wall surface (R) generally using RC infusion or light finish, 20 gaps (D) of 1mm ~ 2mm are used to separate the area, and then the method of the invention is used to treat at the gap (D), so the surface of the painted building is not easy to have small cracks (t) This is the advantage of the derivable application of the engineering method of the present invention. Please refer to FIG. Corrosion-resistant elastic thin layer (2) is a data chart for the allowable tensile length test, which is shown in the chart, when it is 20mm. Page 8 This paper applies the Chinese National Standard (CNS), A4 size (210X297 mm) I.:- ---; — · —L—r-1'pack— (Please read the precautions on the back before filling out this page) 'Order · Printed by A7, member of the Central Standards Bureau of the Ministry of Economic Affairs and Consumer Cooperatives. __ ^ _ B7 _ V. Description of the invention (: 7Ί width of the corrosion-resistant elastic thin layer (2), the allowable stretch length is about 1mm, and the width of 60mm can reach the allowable stretch length of about 6mm, this data means that if it is 60mm corrosion resistance The elastic thin layer (2) has a tensile length of less than 6 mm and will not break. In order to obtain an absolute safety value, the width of the 5 corrosion-resistant elastic thin layer (2) is 40 to 60 mm or more. In addition, the reason why the present invention can overcome and solve the lack of conventional jointing materials and decoration is based on the application of the test data of Figure 12, so please refer to Figure 13 As an illustration, there are 10 thin elastic layers (2) with a width of 60 mm. Two of the thin elastic corrosion resistant layers (2) It is fixed on the surface of the building in a way, so when the two pieces of cement board (A) are stretched, neither of the two positions will tear, so the paint on the surface will not peel off. As for the middle part of about 60mm The width is an elastic stretch zone. This is because the corrosion-resistant elastic thin layer (2) is elastic, and the adhesive used for the bottom surface adhesion is also the elastic adhesive (21). Therefore, when the 15 gap (D) is enlarged by 1mm, it is evenly distributed. On the unit area of the corrosion-resistant elastic thin layer (2), there is only a stretch of 1 / 60mm. Therefore, although the internal stress of the corrosion-resistant elastic thin layer (2) changes slightly, the surface layer is naked to the naked eye. It is not visible, so there is no risk of peeling or cracking of the coating on the surface. This is also the essence of the present invention, that is, the gap (D) is unavoidably with a stretch length of about 20 mm, which is evenly distributed on the surface of 60 mm, so that it is evenly diluted to achieve a durable and beautiful surface, without causing depression or turtles. Increased effect of cracking. Therefore, the present invention has the following differences and advancement effects compared with conventional jointing materials or decorative fabrics: ____________ page 9 __ This paper size applies the Chinese National Standard (CNS) A4 specification (21〇 × 297) Li) —41. Nn m nn an ί «· -I 1---cl, 士 n» ^ m mu nn \ 'J (Please read the precautions on the back before filling out this page) 5. Description of the invention) A7 ______ B7 PU jointing material has a very limited width that can be filled by PU jointing material. Therefore, when it is stretched by 1 mm, it will force a depression of about 1 mm, which will cause the paint to crack the water-based elastic resin. The disadvantages are the same as above, and its shrinkage is large. 4. Construction must be carried out. The use of h is not consistent with economic benefits. The surface of gypsum soil will crack directly, causing the coating to peel and crack. Although the elastic fiber web is elastic before construction, it will penetrate into the holes after coating and make it inelastic. When it is stretched, it will break from both sides or the middle. Inelastic paper tape is inelastic, so it will break from both sides or center when stretched. The internal stress of the rigid AB glue is too strong, forcing new cracks on the building surface. According to the present invention, the two sides of Φ are suddenly solid, so they will not tear, so the paint on both sides will not crack. ② The center is the elastic expansion zone, and the unit area changes only about 1 / 60mm, so the paint will not be abnormal or cracked. ③ It can ensure the surface is beautiful and durable. ④ Easy construction and good environmental adaptability. From the above analysis, it is known that the present invention is not only convenient for construction, but its handlers must first read the-Notes-Items · Items on this page, and then write this page to achieve the expected increase in efficacy to prevent surface cracks “Available for industrial use” r Printed by the Consumer Cooperatives of the Central Bureau of Standards, Ministry of Economic Affairs, page 10 This paper is sized for China National Standard (CNS) A4 (210X297 mm)