緩凝 的英文怎麼說

中文拼音 [huǎnníng]
緩凝 英文
delayed coagulation
  • 緩 : Ⅰ形容詞1 （遲; 慢） slow; unhurried 2 （緩和; 不緊張） not tense; relaxed Ⅱ動詞1 （延緩; 推遲） d...
  • 凝 : 動詞1. （凝結） congeal; curdle; coagulate 2. （注意力集中） fix
  1. The result shows, for this composite cement system, retarding action of dihydrate gypsum is more obvious than that of anhydrite, meanwhile, anhydrite tends to cause setting time short and water needed increased

    結果表明：二水石膏對該種復合體系水泥的緩凝作用比硬石膏明顯，硬石膏易引起復合體系水泥急凝和需水量增大。
  2. The expansion agents can only make up the shrinkage to some extent, and the compensation effects would be reduced when the retardener and fly - ash are used. the expansion agents are not panaceas to avoid the shrinkage cracking as expansion can also reduce the concrete soundness. under bad curing condition, the polypropylene fibrillated film fiber can improve concrete ' s anti - crarking property, while the nominal steels have very unobvious effects. to reduce the concrete shrinkage thus avoid the cracking, the former factors must all be taken into account in concrete proportion design to develop sound concrete

    研究結果表明，水泥的品種和用量是影響混凝土收縮值的主要因素之一，當混凝土中水泥用量超過470kg / m ~ 3時，混凝土的收縮值超過400 10 ~ （ - 6 ） ，在約束狀態下存在高開裂風險；採用細砂使混凝土單位用水量顯著提高，收縮值也大幅增加；優質粉煤灰總體上能抑制混凝土的收縮，以超量方式摻入其抑制作用更加明顯，但粉煤灰混凝土早期的粘聚性較差，應注意養護，以免失水產生龜裂；早強減水劑和緩凝減水劑都會使混凝土收縮值增加；膨脹劑只能補償混凝土部分收縮，同時受緩凝劑和粉煤灰的抑制，而且膨脹使混凝土的體積安定性增加了不確定因素，膨脹劑不是解決混凝土收縮裂縫的良方。
  3. Hi this thesis, the setting time of various retarders had been tested, in which three retarders with good retarding action, citric acid, sodium tripolyphosphate, bone glue are respectively chosen from three types of retarders, hydroxyl carboxylic acid type, phosphate type and protein type, and the strength and setting time of gypsum added with them are determined. effect of some factors, such as ph value, fineness of hemihydrate, type of gypsum on the retarding action of the retarders is also studied

    本文對多種緩凝劑進行凝結時間測試，選擇效果良好的羥基羧酸、無機鹽和蛋白質類型的三種緩凝劑：檸檬酸、多聚磷酸鈉和骨膠，測定它們對石膏凝結時間、強度等宏觀性能的影響，並分別研究ph值、石膏細度和石膏種類等因素對它們的緩凝效果的影響。
  4. Through the analyzing the macro - structure to micro - structure, the author considers that retarding mechanism of citric acid is that citric acid and ca in the gypsum form the complexant ion, and hinder the crystallization center of dihydrate crystal bigger ; that of sodium tripolyphosphate is that it combined with ca, hinders the dissolve of hemihydrate. formation and growth of crystallization center ; that of bone glue is the glue - protection and chemical absorption action of active group, which also retards the formation and growth of crystallization center

    通過宏觀到微觀的分析，筆者認為，檸檬酸的緩凝作用的原因主要在於檸檬酸與鈣形成絡合離子，影響了二水石膏晶體的晶核長大過程；多聚磷酸鈉與鈣形成某種復鹽，對于石膏晶體的溶解、成核和長大過程均有強烈的阻礙影響；骨膠則在於膠體對半水石膏的包裹和活性基團的化學吸附，使二水石膏晶體的成核和長大困難。
  5. Such methods as compounding retardants, compounding water - reducing agents ( which has various the extent of condensation ), changing the ways of addition and retardarce method, are used to impolder new water - reducing agent and construction method to salve slump loss, but it can not work drastically

    通過復合緩凝組分、不同縮合度減水劑的復合、改變摻加方式、緩釋法等技術路線開發新型減水劑和施工方法來解決坍落度損失問題，但是這一問題並沒有得到根本解決。
  6. Gypsum for portland cement retarder

    硅酸鹽水泥緩凝劑用石膏
  7. Research on retarder available for alkali activated carbonatite - slag cementitious material

    礦渣膠凝材料的緩凝劑研究
  8. There is some about that retarders or retarding plasticisers really alter the total heat output or, for that matter, the rate of heat generation.

    無疑地，緩凝劑或緩凝塑化劑確實改變了點總放熱量或放熱速度。
  9. Results of experiment show that the reason of strength decreasing of gypsum added with retarders is that the retarders reduce the supersaturation of liquid phase, and makes the crystal grain largen, and pore is followed to worsen, which lead to the strength drop to a large degree

    實驗結果分析表明：在摻加緩凝劑后石膏硬化體強度下降的原因在於緩凝劑降低了石膏的液相過飽和度，使結晶顆粒變大，使石膏的孔結構惡化，最終導致了宏觀強度大幅度下降。
  10. The effects of various set - retarders on strength of concrete are different. 28 - day strength of concrete decrease in different degree with amount of ca - lignosulphonate, ca - solassate and sucrose increase

    常用緩凝劑對混凝土強度的影響差異較大，木鈣、糖鈣和蔗糖摻量過大，混凝土28d強度都有不同程度的下降。
  11. The effects of gypsum on fluidity of cement mortar and setting time of cement paste are not significant when it used as retarder of cement. whereas, when 0. 3 % ca - lignosulphonate or ca - solassate added in cement used anhydrite gypsum as retarder, loss of fluidity of cement mortar is rapid, quick setting is occurred

    但是，在硬石膏調凝水泥中摻加0 . 3的木鈣和糖鈣緩凝減水劑卻能使水泥砂漿流動度經時損失加快，凈漿表現出促凝現象，發生外加劑與水泥的不相容問題。
  12. 5 as for the working methods in winter, according to the relevant items of the antifreeze

    具有底引氣性和緩凝性，以滿足遠距離運輸的需要。
  13. Some retarders permanently weaken the concrete.

    某些緩凝劑對混凝土起長期的弱化作用。
  14. Standard practice for selection of water vapor retarders for thermal insulation

    熱絕緣用水蒸氣緩凝劑選擇的標準實施規程
  15. Selection of suitable retarding agent and its addition is particularly important for controlling the setting time of gypsum - based material in a certain rang, meeting the requirement of construction process. though the retarder is widely used, the influence factor, the intrinsic reason that induces the strength drop and retarding mechanism are still studied superficially

    盡管石膏緩凝劑的用途廣泛，但是對於它的影響因素、緩凝劑強度降低的內在原因和緩凝劑阻礙石膏水化形成緩凝作用的機理的研究粗淺，認識模糊。
  16. Furthermore, by testing the supersaturation of liquid phase, hydration rate, hydration temperature as hydration of gypsum with the retarders, the effect of retarders on the hydration process is found out

    通過對摻加緩凝劑后對石膏水化過程中的液相過飽和度、水化率和水化溫度的測試，了解緩凝劑對石膏水化進程的影響。
  17. Research the application of titanium white residue as set retarder in cement

    鈦白渣作水泥緩凝劑的應用研究
  18. Application of scour and abrasion resisting high grade concrete mixed with silica powder and retarded water - reducing agent in zipingpu hydropower station

    緩凝高效減水劑配製高標號抗沖耐磨混凝土在紫坪鋪電站中的應用
  19. The paper studies on the principal technologies on coal desulfurization and retardant mechanism of cement retarder and active mechanism of cement mixed material

    摘要介紹了煤炭脫硫產物和它們作水泥緩凝劑、水泥混合材的研究。
  20. As a kind of cement retarder, normal setting time and good effect for mechanical properties and soundness of cement can be got when adding desulfurization gypsum in cement, so it can used instead of natural gypsum to produce cement entirely, coal gangue is activated and coal ash desulfurized have good active, can improve cement output and also can depress consumption when them be used as mixed material, have well economic and environmental effects

    脫硫石膏作水泥緩凝劑時，水泥的安定性、凝結時間正常，可改善水泥的力學性能，完全可替代天然石膏；活化后的煤矸石和脫硫煤灰具有較好的活性，用作水泥混合材可增加水泥產量、降低生產成本，具有良好的經濟和環境效益。
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