解凝劑 的英文怎麼說
中文拼音 [jiěníngjì]
解凝劑
英文
deflocculating agent-
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。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。Firstly, the surface characteristic of polystyrene particle is changed from water detesting to water intimity by using special techniques and admixtures so mat the compound quality with inorganic materials is insured. secondly, the contradiction between the weight and strength is solved through optimizing the particle size and using composite fiber and the best heat conductivity is achieved under the condition that the necessary strength is met. in the research process, the author solved the problem of fiber dispersing in insulating materials so that the contraction of the material is controlled
課題研究中，首先採用特殊的改性工藝及外加劑實現對聚苯乙烯顆粒表面的成功改性，使其表面由憎水轉化為完全親水，確保與無機材料的復合質量；其次，通過採用優化骨料級配及使用復合纖維等措施解決了保溫材料的輕質與強度的矛盾，使保溫材料在滿足必要的強度的前提下，導熱系數降至最小；並且，課題研究中成功解決了纖維在保溫材料中均勻分散的問題，達到了抑制保溫材料收縮的目的；最後，通過採用復合外加劑、合適的膠凝材料及合理的配比等措施確保該保溫材料具有良好的和易性，滿足施工的要求。The pertinent research work has been carried out as follows : the transparent nano - tio2 films on soda - lime glass substrates were obtained by sol - gel process. the precursor of nano - tio2 film was ti ( oc4h9 ) 4 and the menstruum was c2h5oh. the preparation conditions which were effecting the nano - tio2 quality were researched
本文主要就納米tio _ 2薄膜的制備、探索用ecr氮等離子納米tio _ 2的摻雜改性等開展了如下的工作：本文採用溶膠?凝膠法，以鈦酸丁醋做前驅體、無水乙醇做溶劑，水解制備溶膠，然後通過提拉法制備納米tio _ 2薄膜。The application of polysodium acrylate in as ceramic water - reducing agent
陶瓷解凝劑聚丙烯酸納的研究與應用The new high effective water - reducing agent act - fdn has characteristic of reactivity, it ca n ' t dissolve in water but do in alklia. in the concrete, it decompounds slowly and gives out sulfonate group which has dispersity, this can make the high effective water - reducing agent available for a long time, therefore it can reduce slump loss
研製的新型高效減水劑act - fdn ，具有反應性的特點，不溶於水但溶於堿，在混凝土這樣的堿性環境下可以緩慢分解釋放出具有分散性能的陰離子磺酸基，使高效減水劑能夠持久發揮作用，從而達到了降低坍落度損失的目的。Abstract : the article concludes the function of concrete ? expansion agent and some problems in application, also tells us how to take measures to solve it
摘要:文章介紹混凝土膨劑的功能及在使用中存在的問題和解決措施。Abstract : a solution and conveying equipment for dissolve organic polymer flocculants was designed in the light of the deficiencies of easily absorbing moisture and dissolution difficulty of an organic polymer flocculant with excellent flocculability. it is simple, practical, and easy to popularize to operation process in sewage treatment
文摘:針對具有高效絮凝性能的有機高分子絮凝劑存在易吸潮、難溶解的不足，設計了一種高分子有機絮凝劑的溶解輸送裝置，該裝置簡單實用，易於在污水處理生產中推廣應用。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。We research the causes of concrete cracking, develop the high performance anti - cracking additive, optimize the concrete mix and construction techniques, increase the stability of concrete volume by shrinkage compensation, enhance splitting tensile strength, and can meet demand of high workability of fresh concrete. in the study, a thorough investigation of this problem is made from all points of view, with the aid of various modern measurement & testing technology and different theories & methods in surface physical chemistry, structural chemistry, solid - state chemistry, composite materials, fracture mechanics, etc. our research results have shown that the various shrinkage of concrete cause concrete cracking in building engineering, such as autogenous shrinkage, dry shrinkage, temperature shrinkage, plastic shrinkage, carbonized shrinkage, etc
目前，解決混凝土開裂的方法是綜合的，我們調查研究了混凝土開裂的原因，開發研製了高性能抗裂外加劑，優化混凝土的設計和施工方法，並通過補償收縮達到混凝土體積穩定，提高抗裂強度，滿足混凝土拌和物高工作性能的要求。本研究採用多種測試技術，應用表面物理化學、結構化學、固體化學、復合材料學、斷裂力學等多學科的理論與方法，從不同的角度進行深入的研究和探討。通過調查研究建築工程中出現的混凝土開裂、滲漏問題，發現混凝土在非荷載作用下開裂主要是由混凝土的自收縮、乾燥收縮、溫度收縮、塑性收縮、碳化收縮等各種收縮變形引起的。Due to the complex in the hydrolyze process, the inorganic flocculant does a obvious influence on the result of coagu - flocculation in industry
無機混凝劑由於其水解過程的復雜性，在工業使用中對混凝的效果有較明顯的影響。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。Hydrolysate of composite flocculant prepared from fe inorganic flocculants and organic flocculants
鐵鹽類無機有機復合絮凝劑的水解特性及脫色效能The optimum dosing amount of coagulant which make the minimum resistance is in conformity with the optimum value which remove maximum dissolved organic matter in water studied
使膜過濾阻力最小的最佳混凝劑投加量與去除水中溶解性有機物效果最佳的投加量一致。The dissolving equipment was applied to dissolve the organic polymer flocculant for the air - flotation treatment of the refinery sewage with satisfactory reaults obtained
將該溶解裝置用於煉油污水氣浮處理的有機絮凝劑溶解，取得良好的效果。The content of this research include : screening the microorganism that can produce bioflocculant from the microorganism sample, select the best microorganism to optimize its culture condition that can increase the flocculating activity to the utmost ; in order to see about his flocculating activity, then using the bioflocculant flocculate the kaolin suspension and compare the flocculating results with the pac hpam ; on the basis of the bioflocculant has excellence flocculating activity, distill and purify the bioflocculant from the culture mediunu give qualitative analysis of its ingredient and reach its flocculating mechanism. the studies include the enrichment culture of the microorganisms that can produce bioflocculant and their screening suggest that they are broad exist in the soil and active sludge
本課題的研究內容包括：從微生物樣品來源中篩選出微生物絮凝劑；從中挑選具有優良絮凝活性的微生物絮凝劑產生菌，對其產微生物絮凝劑的培養條件進行優化以提高其產絮凝劑的絮凝活性；用該絮凝劑絮凝高嶺土懸液，並與聚合鋁（ pac ）和水解聚丙烯酰胺（ hpam ）進行比較，以考察其對廢水的絮凝效果；在具有優良絮凝活性的基礎上，將該絮凝劑提取和純化，對其進行分析研究，並對其絮凝機理進行探討。The modified starch flocculant has a series of virtues such as green, non - toxicity, low price and biodegradability
改性澱粉絮凝劑具有綠色、無毒、價廉、易於生物降解等優點。The output signal of pda is affected by the suspended particle concentration, particle size, and the type and dosage of coagulant as well. by analysing the fi curve, it is found that the characteristic parameters of fi curve closely relate to aggregates size and turbidity removal the aggregates size and turbidity removal achieve the maximum when the amplitude of fluctuation is the maximum. the mean diameter and fractal dimension increase with agitation time, and finally reach a steady - state
通過對混凝過程的在線監測和對pda輸出信號fi曲線的數學解析表明： fi曲線綜合反映了懸濁液中膠體顆粒濃度和顆粒粒徑，混凝劑種類和投量很大程度上影響了fi曲線形狀， fi曲線的特徵值與絮凝體平均粒徑和濁度去除率之間具有良好的相關關系，在振幅最大處，濁度去除率達到最高，絮體平均粒徑最大，該條件下對應的投藥量為最佳投藥量。The main conclusion are as bwlow : 1. for microflocilation / uf progress, ferric salts were better than aluminum salts ; the more dose of coagulant, the high removal rate of organic matter. however when dose increased to a certain level ( 6mg / l alo2 ), fouling was higher instead
主要成果和結論如下: 1 .微絮凝-超濾工藝中，鐵鹽混凝劑比鋁鹽要好;隨著混凝劑投加量的增加，有機物的去除率也隨著增加，但當混凝劑投加量增加到一定量（以al2o3計為6mg / l ）時，反而會加劇膜污染;投加pam （聚丙烯酰胺）對提高有機物去除率沒有幫助，但可以緩解膜污染。Bioflocculant is the important sort of the crude macromolecular flocculant. it has such advantages : no toxicity, no second pollution, many sorts of microorganism that can produced bioflocculant, be easy to achieve industrialization through biology engineering, can bio - decompose organic pollutant while flocculate the suspension and colloid
微生物絮凝劑是天然高分子絮凝劑的重要種類，它具有無毒，二次污染，產絮凝劑的微生物種類多，生長快，易於採取生物方法實現產業化，在絮凝沉降的同時還具有生化降解功能等優點。分享友人