易凝縮的 的英文怎麼說
中文拼音 [yìníngsuōde]
易凝縮的
英文
condensative-
Fanned by a constant updraught of ventilation between the kitchen and the chimneyflue, ignition was communicated from the faggots of precombustible fuel to polyhedral masses of bituminous coal, containing in compressed mineral form the foliated fossilised decidua of primeval forests which had in turn derived their vegetative existence from the sun, primal source of heat radiant, transmitted through omnipresent luminiferous diathermanous ether
自廚房至煙囪的孔道，不斷地向上通風，灼熱的火被它煽得從成束的易燃柴禾延燒到多面體煙煤堆上。這種煤炭含有原始森林的落葉堆積后凝縮而成的礦物狀化石森林之發育生長靠的是熱輻射性源-太陽，而熱又是由那普遍存在傳光並透熱的能媒33傳導的。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 results indicated that in the precondition of eligible durability, 11 % of fa content and 7 % of stone powder content had the composition effects, which made concretes have best workability and strength, and restrain the shrinkage to a degree
結果表明，在耐久性滿足要求的前提下， 11 %摻量的粉煤灰與7 %含量的石粉產生了良好的復合疊加效應，使混凝土獲得了最佳和易性和強度值，且對干縮起到了一定的抑制作用。The result indicate that the lightweight aggregate with normal shape are easy to control than that with globular shape. the homogeneity of concrete can be improved by prewetting the ceramisite agitator, and should shorten vibrating time
研究結果表明，普通型陶粒混凝土較圓球型陶粒混凝土勻質性更容易控制;對吸水率較大的陶粒可以通過預濕來改善勻質性，另外應盡量縮短振動時間。But some problems with self - compacting concrete such as high slump loss and the difficulty of harmonizing the cohesiveness and the flowability should be solved. the theory of concrete mix design should also be perfected. in accordance with these problems, this thesis carry out such research works as follows to deal with them
然而，免振搗混凝土特別是高強超高強免振搗混凝土坍落度損失大，粘聚性和流動性難以統一以及易產生收縮裂紋的問題亟待解決；免振搗混凝土的配比設計理論也需要進一步地加以完善。Mineral admixtures have unsuperseded advantages in improving the workability and durability of self - compacting concrete. the reasons of tendency of cracking in self - compacting concrete and the influence factors have been studied, and the new type of mineral admixture has been used in high performance self - compacting concrete, and its defects such as high slump - losing and shrinking or cracking is successfully prevented
分析了免振搗混凝土容易產生收縮開裂的原因及其影響因素，將研製的新型礦物添加劑應用於免振搗高性能混凝土之中，解決了免振搗混凝土坍落度經時損失大、易產生收縮開裂等技術難題，配製出免振搗微膨脹高性能混凝土。In the paper the effects of the made parameters, the main materials and environmental conditions on plastic shrinkage cracking were investigated. it can be concluded as following : 1 ) there was a critical w / c ratio of maximum plastic shrinkage cracking between lower and higher w / c ratio of concrete mixtures made with the same cement content per cubic meter, concretes with lower or higher w / c ratio being less prone to plastic shrinkage cracking and the w / c critical ratio critical of maximum plastic shrinkage cracking being about 0. 5
本文研究了配製參數、主要原材料以及環境條件對新拌混凝土塑性收縮裂縫的影響，結果表明： 1 ）單方混凝土水泥用量一定時，較低水灰比和較高水灰比對應的混凝土拌合物不易開裂，而中間某一臨界水灰比對應的混凝土拌合物開裂較嚴重，這一臨界水灰比為0 . 5 ；單方混凝土水用量或水泥漿量一定時，混凝土拌合物的塑性開裂趨勢與上述情況相似，但臨界水灰比分別為0 . 45 - 0 . 4和0 . 4 。Lwac is becoming one of the important trends in the development of modern concrete. to solve the problems such as poor workability, large shrinkage value and crack easily of lwac, on the basis of systematic experiments, the author establishes lwac workability evaluation system and advances the testing method of pumping performance of lwac ; the control technology of discrete of lwac is introduced through analyzing structure formation process and establishing the mathematic model ; based on studying the strength source of lwac and the function mechanism of artificial additive, this paper not only confirms some major factors which affect concrete strength but explores the preparation technology route of high strength lwac ; the different effects of several fibers in lwac have been studied, and the fiber is introduced in pumping lwac to improve its crack - proof performance
本文針對輕集料混凝土工作性能差、收縮變形大、易於開裂等問題，根據大量實驗建立了高強輕集料混凝土工作性能的評價體系，提出了高強輕集料混凝土可泵性的測試方法；通過分析輕集料混凝土的結構形成過程，建立了輕集料混凝土拌和物物料運動的數學模型，提出了防止輕集料混凝土分層離析的技術措施；通過對輕集料混凝土強度來源和礦物摻合料的作用機理的深入研究，確定了影響輕集料混凝土強度因素的主次關系，提出了配製高強輕集料混凝土的技術路線；研究了纖維在輕集料混凝土中的增強增韌、減少收縮的作用機理。From this point, expensive admixture is a good way to solve the cracks of hpc
從這個意義出發，具有補償收縮作用的膨脹劑可謂是解決高性能混凝土易裂的一種「良藥」 。Because of its many excellent advantages, hpc has come to be used in a wide range. but the existed projects show it ' s weakness, such as the brittleness and the tendency to early age cracking of hpc is more serious and sensitive than ordinary performance concrete ( opc )
高性能混凝土由於其優異的性能得到了越來越廣泛的應用，但已有的工程實踐中也相繼暴露了hpc的一些弱點，如高性能混凝土的脆性和易於收縮開裂的傾向可能比普通混凝土更嚴重。2 ) to a certainty of sand percentage, concretes with moderate critical sand percentage which changed in about 36 % - 43 % were more sensitive to plastic shrinkage cracking than concretes with lower or higher sand percentage. 3 ) concrete made with lower strength grading cement was more prone to plastic shrinkage cracking than that of concrete made with higher strength grading cement
4 ）粉煤灰和硅灰對混凝土塑性收縮裂縫的影響與拌合物的實際水膠比有關，存在一個水膠比界限，在此界限之上，摻入粉煤灰或硅灰的混凝土較易開裂，在此界限之下，粉煤灰或硅灰高性能混凝土對塑性收縮裂縫具有抑制作用。This part is investigated in this paper. what ' s more, a new type admixtures - shrinkage - reducing admixture is also studied with respct to the concrete shrinkage. results indicates that expansive admixture and shrinkage - reducing admixture both decrease early - age shrinkage, but the shrinkage - reducing admixture has the merits of more stable shrinkage - reducing ratio, lower drop in elavation of shrinkage, more substantial reduction in overall shrinkage and so on
此外，減縮劑是一種專門用於減少混凝土乾燥收縮和自收縮的新型外加劑，本文也研究了其對混凝土收縮作用效果，試驗結果表明：膨脹劑和減縮劑都具有改善混凝土早期收縮的作用效果，但同膨脹劑相比，減縮劑具有減縮穩定，收縮落差小易適應變化，改善效果更明顯等優點。分享友人