201002647 六、發明說明： L考务明戶斤屬才支冷好冷貝3 發明領域 本發明係有關於一種水泥構造物被覆養護劑’具體而 言，係有關於一種藉由被覆水泥構造物之表面而抑制其水 分蒸發且依此可提升水泥構造物之強度的被覆養護劑。 【^tr才支系好；j 發明背景 為了充分地發揮砂漿或混凝土等水泥構造物之性能， 迄今係使用抑制來自水泥表面之水分損失的養護方法’且 通常係使用喷水養護、塗膜養護、片材養護等方法。 然而’喷水養護在氣溫高且水分蒸發速度快的時期必 須增加喷水次數並構成繁雜之作業，又，片材養護必須與 施工面積之增加同時地增加片材，且在大面積之應用上是 有困難的’同時具有難簡應形態之複雜化的缺點。201002647 VI. INSTRUCTIONS: L. The invention relates to a cement structure covering curing agent. Specifically, it relates to a cement structure by covering A coated curing agent that inhibits the evaporation of moisture on the surface and thereby increases the strength of the cement structure. [^tr is a good support; j Background of the invention In order to fully utilize the performance of cement structures such as mortar or concrete, a curing method for suppressing moisture loss from a cement surface has been used so far, and water spray curing and film curing are usually used. , sheet maintenance and other methods. However, in the period of high temperature and rapid evaporation of water, water spray maintenance must increase the number of water sprays and constitute complicated work. Moreover, sheet maintenance must increase the sheet simultaneously with the increase of construction area, and in large-area applications. It is difficult to have 'there is a shortcoming of the complexity of the simple form.
又’雖然塗膜養護並未具有前述問題，然而，習知塗 膜H'j係使用％氧、㈣酸、胺甲酸乙醋等樹脂系塗膜 養㈣’ d等錢養護劑係具有含有溶劑、彻雙液变而 使用煩4或覆膜較硬且難以迎合水泥構造物之變形等問 相對於此種問題， _ 柯於專利文獻1中揭示有一種由含有纖 維素類之水溶液所構成 一 战之塗膜養護劑，且於專利文獻2中揭 不有一種由合成樹脂欢 然而 性分散體等所構成之養護被覆劑， 该4的水分蒸菸女 '、、^抑制效果都還不夠充足。 3 201002647 [專利文獻1]日本專利公開公報特開2004-244255號公報 [專利文獻2]特開2005-162534號公報 I：發明内容3 發明揭示 發明欲解決之問題 本發明係有鑑於此，目的在提供一種可藉由簡便之方 法來使用，同時水泥構造物表面之水分蒸發抑制效果優異 且依此可提升水泥構造物之強度的被覆養護劑。 用以欲解決問題之手段 本發明之水泥構造物用被覆養護劑（以下亦僅稱作被 覆養護劑）係塗布或散佈於水泥構造物之被覆養護劑，且為 了解決前述問題，包含有油性成分，係熔點為70°c以下且 於室溫下呈半固態狀或固態狀之油性成分，並藉由選自於 由高級脂肪酸、高級醇、油脂及烴所構成之群中之一種或 二種以上所構成。 前述油性成分宜為25°C針入度為10以上者。 又，本發明之水泥構造物用被覆養護劑亦可作成前述 油性成分利用界面活性劑分散於水中而構成之水中油型乳 化分散體。 發明效果 若藉由本發明之被覆養護劑，則可減少水分損失率， 藉此，可促進水泥之水合反應並提升初期強度顯現性，故， 藉由乾燥收縮減低效果之增大，可提升防裂紋效果，進而 可提升水泥構造物之耐久性。 201002647 4式】 用以實施發明史最佳形態Further, although the coating film curing does not have the above problems, the conventional coating film H'j is made of a resin coating film such as % oxygen, (tetra) acid or urethane formic acid (4) 'd money curing agent has a solvent. With respect to such a problem, the use of an aqueous solution containing cellulose is disclosed in Patent Document 1 with respect to such a problem. In the case of the film coating curing agent of the war, and in Patent Document 2, there is no curing coating agent composed of a synthetic resin fragrance dispersion, etc., and the effect of the 4 water-steamed tobacco females is insufficient. . [Patent Document 1] Japanese Laid-Open Patent Publication No. 2004-244255 (Patent Document 2) Japanese Laid-Open Patent Publication No. Hei No. Hei. No. 2005-162534. Provided is a coating curing agent which can be used by a simple method and which has an excellent effect of suppressing moisture evaporation on the surface of a cement structure and thereby enhancing the strength of the cement structure. Means for Solving the Problem The cement structure of the present invention is coated with or coated with a coating curing agent for a cement structure, and contains an oily component in order to solve the above problems. An oily component having a melting point of 70 ° C or less and being semi-solid or solid at room temperature, and being selected from one or two selected from the group consisting of higher fatty acids, higher alcohols, oils, and hydrocarbons. The above is constituted. The oily component is preferably a penetration of 10 or more at 25 °C. Further, the coating material for a cement structure according to the present invention may be an oil-in-water emulsion dispersion in which the oil component is dispersed in water by using a surfactant. According to the coated curing agent of the present invention, the water loss rate can be reduced, whereby the hydration reaction of the cement can be promoted and the initial strength developability can be improved, so that the crack resistance can be improved by the increase in the drying shrinkage reduction effect. The effect can further improve the durability of the cement structure. 201002647 Type 4] The best form for implementing the history of invention
於本發明中所使用的油性成分係藉由選自於由高級脂 肪酉文而'、及醇、油脂及烴所構成之群中之疏水性化合物的 一種或一種以上所構成，且於常溫下呈半固態狀或固態 狀。在此’所謂「半固態狀或固態狀」係指非液體狀者， 更具體而言’係指在按照日本總理府令『有關危險物之限 制規則』第69條之2中所訂定的液狀定義之確認試驗中，於 20C下需要90秒以上者。又，該等油性成分係作成熔點7〇 °C以下者。 前述油性成分宜為25。(：針入度為10以上者，此時，水 刀損失抑制效果會更加優異，且依此亦可進一步地提升水 泥構造物之強度顯現效果。 月述油性成分之較佳例可列舉如碳數12至碳數16之高 級脂肪酸或高級醇，具體而言，可列舉如：月桂酸、肉豆 缝酸、軟脂酸、硬脂酸、月桂醇、肉豆蘿醇、舰醇、硬 脂醇。其他較佳例可列舉如：蜜蠟、鯨蠟'羊毛脂、石蠟、 石堪脂等_，其巾，由於對水泥構造物之變形的迎合性 優異，因此宜為於室溫下呈半㈣狀之物f的羊毛脂及石 蠟脂。 +本發明之被覆養護劑可作成將前述油性成分直接或依 需要加熱而進行塗布’或者亦 ^ v 作成刖述油性成分利用界 面活性劑分散於水令而構成之 兩者進行比較，則前者在水八 型礼化分散體。右將 在^4發_縣上較為優異， 5 201002647 後者則是作業性方面較為優異。 於則者％加熱可依需要進行至構成容易塗布油性成 分之狀態為止’且其加熱溫度可依照油性成分之種類、為 塗布對象之水泥構造物、作#環鮮㈣當地決定。 於後者時’水中油型乳化分散體可藉由迄今用來調製 相同分散體之方法來調製n來分散油性成分而作成 水中油型礼化分散體之界面活性劑只要是不料本發明被 覆養護劑之性能造成不良影響者，則無特殊之限制而可加 以使用’且可使用陰離子系及非離子系界面活性劑，其中， 宜使用非離子系界面活性劑。又，調製方法可使用下述方 法’即：一點一點地加入水並利用相轉換之相轉換乳化法; 技入大里之水中而利用自乳化分散性之自然乳化法；利用 均質機或膠磨機等機械作用之強制乳化法等。 為了得到良好之施工性，本發明之被覆養護劑宜為黏 度為10,000mPa· 3以下者，且更為理想的是5〇〇mpa . s至 5000mPa . s者。 在未脫離本發明目的之範圍内，於本發明之被覆養護 劑中亦可適當地添加如黏土礦物或肥皂般之黏度調整劑等 添加物。 本發明之被覆養護劑係藉由塗布或散佈於水泥構造物 表面來進行施工。塗布或散佈量並無特殊之限制，然而， 若由不會產生被覆養護劑之浪費而可得到所期望之效果且 施工性亦良好的觀點來看’則宜為50g/m2至500g/m2，且更 為理想的是l〇〇g/m2至300g/m2。 6 201002647 將被覆養護劑塗布或散佈於水泥構造物表面之方法可 使用一般方法，舉例言之，於塗布中，可使用能將前述油 性成分或其分散液塗在水泥構造物表面之刷毛或滾筒等。 又，於進行散佈時，可使用手壓泵式噴灑機、機械式喷灑 機等。 實施例 以下藉由實施例更具體地說明本發明，然而本發明並 不限於以下實施例。 [實施例1至實施例5、比較例1至比較例6] 將表1所示之油性成分等及作為非離子界面活性劑之 聚氧乙烯月桂醚投入水中並進行攪拌，且得到為油性成分 20重置％(純度）、非離子界面活性劑1 〇重量％之水中油型乳 化分散體的被覆養護劑，然而，比較例丨係作成空白試樣。 將所使用的油性成分等之熔點及於25»c之針入度同時記載 於表1中，另’熔點及針入度係根據JIS K2235(石油蠟）而 預先測定。 使用所得到之被覆養護劑，且如下述般測定水泥試驗體 之水分損失量與壓縮強度。又，將結果同時記載於表丨中。 水分損失量：使用(|)50mmxl00mm之簡易模框，成形業 經混練之砂漿（水泥/砂= 1/3，W/C二60%)，並於20°C、 60%RH之恆溫恆濕槽中養護24小時。脫模後，藉由刷毛以 200g/m2將前述被覆養護劑塗布於砂漿表面。放置於2(rc、 600/〇RH之伎溫恆濕室中，並測定！日後、2曰後、3曰後、5 曰後、7日後之試驗體重量，然後，藉由1〇(rc之乾燥機乾 7 201002647 燥4日，並測定試驗體重量。自乾燥前之重量與乾燥後之重 量及試驗體之體積算出水分損失量（g/m2)。 又，根據HS A1108『混凝土之壓縮強度試驗方法』， 測定壓縮強度。 [實施例6、實施例7] 將表1所示之油性成分加熱至35°C，並使用橡膠製抹砂匙， 以40g/m2之比例塗布於水泥試驗體之表面。針對該水泥試 驗體，作成與前述相同地測定水分損失量及壓縮強度。又， 將結果同時一併記載於表1中。 表1 油性成分等 熔點 CC) 針入度 (25 °〇 水分損失量(g/m2) 壓縮強夜 (N/mm2) 1曰後 2曰後 3日後 5日後 7日後 28曰後 實施例1 月桂酸 44 25 578 1235 1604 2556 4196 18.4 實施例2 錄壤醇 56 35 550 1219 1575 2456 3983 20.2 實施例3 羊毛脂 40 40< 496 1164 1603 2361 3902 20.5 實施例4 石蠟脂 56 40< 482 1040 1384 2232 3885 21.0 實施例5 蜜蠟 63 20 540 1265 1651 2548 4097 19.8 實施例6 羊毛脂 40 40< 421 931 1204 2022 3538 21.8 實施例7 石蠟脂 56 40< 400 896 1106 1899 3276 22.4 比較例1 無添加 - - 829 1762 2178 3369 5029 17.2 比較例2 鯊烷 - - 909 1696 2140 3208 5014 17.4 比較例3 甘油 - - 1093 1866 2538 3689 5855 17.0 比較例4 地蝶 74 10 856 1590 2186 3249 4922 17.5 比較例5 微晶蠟 80 34 1029 1570 2163 3159 4999 17.6 比較例6 蟲膠 93 2 1238 1876 2285 3261 5213 17.4 8 201002647 如表1所示，相較於比較例者，實施例者從1日後到7曰 後皆為水分損失量小且具有優異之壓縮強度。 產業之可利用性 本發明之被覆養護劑可使用在土木、建築領域中所使 用的各種水泥構造物，例如隧道之覆工混凝土、一般構造 物之牆壁或地板等。 t圖式簡單說明3 (無） 【主要元件符號說明】 (無）The oily component used in the present invention is composed of one or more selected from the group consisting of high-grade fats, and a hydrophobic compound composed of alcohols, oils, and hydrocarbons, and is at normal temperature. It is semi-solid or solid. Here, the term "semi-solid or solid" means non-liquid, and more specifically, 'in accordance with Article 69 of the "Rules for the Limitation of Hazardous Materials" of the Japanese Prime Minister's Decree. In the confirmation test of the liquid definition, it takes 90 seconds or more at 20C. Further, these oily components are formed to have a melting point of 7 〇 ° C or less. The aforementioned oil component is preferably 25. (When the penetration degree is 10 or more, the water knife loss suppression effect is more excellent, and the strength development effect of the cement structure can be further improved by this. The preferred example of the oily component of the month can be exemplified by carbon. The higher fatty acid or higher alcohol having a number of 12 to 16 carbon atoms, specifically, for example, lauric acid, myristic acid, palmitic acid, stearic acid, lauryl alcohol, myristyl alcohol, stearyl alcohol, and stearic acid Other preferred examples include: beeswax, cetyl' lanolin, paraffin, stellite, etc., and the towel is excellent in the resistance to deformation of the cement structure, so it is preferably at room temperature. The lanolin and paraffin fat of the semi-tetrazed material f. The coated curing agent of the present invention can be prepared by heating the oily component directly or as needed, or by dissolving the oily component by using a surfactant. The comparison between the two is made by the water, and the former is in the water-type ritual dispersion. The right is superior in ^4 hair_county, 5 201002647 The latter is excellent in workability. Easy to apply as needed The heating temperature can be determined according to the type of the oil component, the cement structure to be coated, and the #环环(四). In the latter case, the 'oil-oil emulsion dispersion can be used to date. The surfactant of the same dispersion to disperse the oily component to disperse the oily component to form an oily-type emulsified dispersion can be used without any particular limitation as long as it is adversely affected by the performance of the coated curing agent of the present invention. Further, an anionic or nonionic surfactant may be used. Among them, a nonionic surfactant is preferably used. Further, the preparation method may use the following method: that is, adding water little by little and using a phase transition phase transition Emulsification method; natural emulsification method using self-emulsifying dispersibility in the water of Dali; forced emulsification method using mechanical action such as homogenizer or rubber grinder, etc. In order to obtain good workability, the coating curing agent of the present invention is preferably The viscosity is 10,000 mPa·3 or less, and more preferably 5 〇〇mpa. s to 5000 mPa. s. Without departing from the object of the present invention. In the coated curing agent of the present invention, an additive such as a clay mineral or a soap-like viscosity adjusting agent may be appropriately added. The coated curing agent of the present invention is applied by coating or spreading on the surface of the cement structure. There is no particular limitation on the amount of the dispersion, however, it is preferably from 50 g/m2 to 500 g/m2 from the viewpoint that the desired effect can be obtained without the waste of the coating curing agent and the workability is good. More preferably, it is l〇〇g/m2 to 300g/m2. 6 201002647 The method of coating or spreading the coated curing agent on the surface of the cement structure can use a general method, for example, in the coating, the foregoing can be used. The oily component or the dispersion thereof is applied to the bristles, rollers, etc. on the surface of the cement structure. Further, when spreading, a hand pump sprayer, a mechanical sprayer, or the like can be used. EXAMPLES Hereinafter, the present invention will be specifically described by way of examples, but the present invention is not limited to the following examples. [Example 1 to Example 5, Comparative Example 1 to Comparative Example 6] The oil component and the like shown in Table 1 and the polyoxyethylene lauryl ether as a nonionic surfactant were placed in water and stirred to obtain an oily component. 20 The % of the (purity), nonionic surfactant 1% by weight of the coating agent for the oily emulsion dispersion in water was replaced. However, the comparative example was used as a blank sample. The melting point of the oily component or the like to be used and the penetration at 25»c are also shown in Table 1, and the melting point and the penetration degree are measured in advance according to JIS K2235 (petroleum wax). Using the obtained coating curing agent, the amount of water loss and the compressive strength of the cement test body were measured as follows. Moreover, the results are simultaneously described in the table. Water loss: using a simple mold frame of (|) 50mmxl00mm, forming a mortar that is mixed (cement/sand = 1/3, W/C two 60%), and a constant temperature and humidity chamber at 20 ° C, 60% RH In the maintenance of 24 hours. After demolding, the above-mentioned coated curing agent was applied to the surface of the mortar by bristles at 200 g/m2. Placed in a temperature and humidity chamber of 2 (rc, 600/〇RH) and measured the weight of the test body after 2 days, 2 weeks, 3 weeks, 5 days, and 7 days, and then by 1 〇 (rc Dryer 7 201002647 Dry for 4 days, and measure the weight of the test body. Calculate the amount of water loss (g/m2) from the weight before drying and the weight after drying and the volume of the test body. Also, according to HS A1108 "Compression of concrete" Intensity test method, the compressive strength was measured. [Example 6 and Example 7] The oily component shown in Table 1 was heated to 35 ° C and applied to a cement test at a ratio of 40 g/m 2 using a rubber shovel. The surface of the body was measured for the amount of water loss and compressive strength in the same manner as described above. The results are also shown in Table 1. Table 1 Melting points such as oily components CC) Penetration (25 °) 〇Water loss (g/m2) Compressed strong night (N/mm2) 1 曰 after 2 曰 after 3 days, 5 days after 7 days after 28 实施 Example 1 lauric acid 44 25 578 1235 1604 2556 4196 18.4 Example 2 Alcohol 56 35 550 1219 1575 2456 3983 20.2 Example 3 Lanolin 40 40 < 496 1164 160 3 2361 3902 20.5 Example 4 Paraffin grease 56 40 < 482 1040 1384 2232 3885 21.0 Example 5 Beeswax 63 20 540 1265 1651 2548 4097 19.8 Example 6 Lanolin 40 40 < 421 931 1204 2022 3538 21.8 Example 7 Paraffin grease 56 40 < 400 896 1106 1899 3276 22.4 Comparative Example 1 No addition - - 829 1762 2178 3369 5029 17.2 Comparative Example 2 Squalane - - 909 1696 2140 3208 5014 17.4 Comparative Example 3 Glycerin - - 1093 1866 2538 3689 5855 17.0 Comparative Example 4地蝶74 10 856 1590 2186 3249 4922 17.5 Comparative Example 5 Microcrystalline wax 80 34 1029 1570 2163 3159 4999 17.6 Comparative Example 6 Shellac 93 2 1238 1876 2285 3261 5213 17.4 8 201002647 As shown in Table 1, compared to the comparative example In the examples, the amount of water loss was small and the compressive strength was excellent from 1 day to 7 hrs. Industrial Applicability The coated curing agent of the present invention can use various cement structures used in civil engineering and construction fields, such as tunneled concrete for concrete, walls or floors of general structures, and the like. t schema simple description 3 (none) [main component symbol description] (none)
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