阻凍劑 的英文怎麼說
中文拼音 [zǔdòngjì]
阻凍劑
英文
antifreezer-
This paper unfolds engineering disposition and theoretical research of negative temperature high performance concrete ( nthpc ) with the damage of many factors motivation, the project background based on qing - zang railway engineering, which is one of four - emphasized engineering during the tenth five - plan. due to the difference of environment of construction and service between nthpc and ordinary concrete, and therefore durability of nthpc is required to higher level. at a first, nthpc must avoid frozen damage at early age and possess anti - freezing property at later period, in order to meet engineering practicable application need, and this are two emphasized and difficult problems, as for nthpc ; by means of mechanism analysis about deicing - agent ingredient and anti - freezing at early period, adopting composite technique routine of mineral addition + anti - freezing element + water - reducer4 - air - entraining + anti - erosion of steel component etc, based on orthogonal experimental approach, fd - 1 composite functional admixtu re was manufactured, which has more property and orientation on qing - zang railway
負溫混凝土由於和普通混凝土在施工環境及服役環境上存在的差異，因此表現為比普通混凝土更為較高的耐久性要求；負溫混凝土首先要避免早期的凍害以及具備長期抗凍性能，才能夠滿足工程實際應用的要求，這也是負溫混凝土必須解決的兩大技術關鍵；通過對目前常用防凍劑組分作用機理的分析研究及混凝土早期防凍機理探討，採用礦物外加劑+防凍組分+高效減水劑+引氣+阻銹組分功能復合的技術路線，通過正交試驗設計復配了適應青藏鐵路工程要求的專用多功能復合型外加劑fd - 1 ；並在此基礎上配製不同等級負溫高性能混凝土，開展一系列包括硫酸鹽侵蝕、氯離子滲透、抗凍融循環、收縮及耐磨性等耐久性能研究；通過對fd - 1組分和摻量的調整，優化負溫混凝土在施工特性、力學指標和耐久性三個方面的兼容、協調性。Consider this list of chinese products detained by the fda just in the last month : frozen catfish tainted with illegal veterinary drugs, fresh ginger polluted with pesticides, melon seeds contaminated with a cancer - causing toxin and filthy dried dates
以下是fda僅上月阻止入境的中國食品名單：不符合規定的獸藥污染的冷凍鯰魚，殺蟲劑污染的鮮姜，致癌毒素污染的瓜種不潔的干棗。3 when fnj l is used in solution, if the crystal appears because of low temperature, we should make the crystal dissolving by reducing the solution concentration or heating before using. drying mixing is available to avoid unevenly mixing
本產品是由多種材料復合而成的復合型混凝土外加劑，主要由膨脹減水防凍早強緩凝和阻銹等組份組成。
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