粗劈理 的英文怎麼說
中文拼音 [cūpīlǐ]
粗劈理
英文
macrocleavage-
Following is the factors ideating with the surface of old concrete in different way ( including brushing surface, chiseling surface, cleaving surface ), adherence agent ( including cement slurry, cement sand slurry, cement slurry with the u expansion agent ), the freeze - thaw circulation times and air - entraining. as a result, we found that the roughness influence on the adhesion capability of the new on old concrete to a large degree. the larger rougeness is, the larger the splitting tensile strength on the adhension face is. the kind of adhesion agent is also influence on the adherence capability of new on old concrete. the circulation times of freez - thaw have a large influence on the splitting tensile strength of adherence face of new on old concrete. the analysis of tests give some advices to the practical engineering
主要考察了老混凝土表面不同處理方式（刷毛面，鑿毛面，劈裂面） 、界面粘結劑類型（水泥凈漿，水泥砂漿， u型膨脹劑水泥漿） 、凍融循環次數等對新老混凝土粘結面劈拉強度的影響，以及凍融作用下新混凝土加氣對粘結面劈拉強度的影響。試驗結果表明，粗糙度對新老混凝土粘結性能有重要影響，隨著粘結面粗糙度的增大，粘結面劈拉強度不斷增加；界面粘結劑類型對新老混凝土粘結性能有一定影響，在凍融作用下， u型膨脹劑水泥漿粘結效果不如水泥凈漿和水泥砂漿；凍融循環對粘結面劈拉強度有較大影響，加氣能明顯改善新老混凝土粘結面的抗凍能力。The main content is : splitting tensile experiments were carried out about the standardized cube bonding specimens ( 150x 150x 150mm3 ) of the new - old concrete after high temperature. the temperature is divided into 9 groups from normal atmospheric temperature to 900, the cooling styles are natural cooling and spraying water cooling ; different interfacial treating methods : brushed with steel - wire brush, man - made chiseling ( not evenly ), man - made chiseling ( quite evenly ) ; different interfacial agents : no interfacial agent, neat cement paste, cement paste mixed with 10 % expanding agent
主要內容有：本文對75個高溫作用后的標準立方體新老混凝土粘結試件進行了劈拉試驗，溫度從常溫到900c分9個溫度段，降溫方式分自然冷卻和噴水冷卻兩種。著重考察了溫度、降溫方式、界面粗糙度及界面劑對新老混凝土粘結劈拉強度的影響規律，闡述了高溫后粘結強度下降的機理。
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