workability of concrete 中文意思是什麼

workability of concrete 解釋
混凝土和易性
  • workability : 操作性能
  • of : OF ＝Old French 古法語。
  • concrete : adj 1 具體的，有形的；實在的，實際的。2 固結成的，混凝土製的。3 圖案詩歌的（參閱concrete poetry）...
  1. The results of research on the workability of hbc concrete show that hbc concrete, when compared with opc concrete, has excellent compatibility with superplasticizer, in terms of better initial fluidity, less slump loss, definite saturation point and less dosage at saturation point. in addition, good mineral admixture such as i class fly ash can obviously improve the workability of hbc concrete. moreover, hbc concrete exhibits more excellent workability under the condition of low w / c ratio, which indicates hbc is more suitable for making super high strength concrete whose w / c ratio is very low

    對高貝利特水泥高性能混凝土工作性能的研究結果表明，高貝利特水泥與高效減水劑具有良好的適應性，表現為初始流動度較大，經時損失較小，具有明顯的飽和點且飽和點摻量較小；此外，優質的礦物摻和料如一級粉煤灰能明顯改善hbc混凝土的工作性能；更為突出的是hbc混凝土在低水膠比的情況下表現出更為優異的工作性，這一特性預示著高貝利特水泥更適宜配製水膠比很低的超高強混凝土。
  2. The results prove that sra can improve the workability of hpc and promote effectively anti - cracking performance of concrete, without any negative effect on the mechanical property of concrete

    研究結果表明：減縮劑能夠改善高性能混凝土的工作性，對混凝土的力學性能無副作用，能夠有效地提高混凝土的抗裂性能。
  3. The compatibility and harmony among workability, mechanical grade and durability are optimized, with the ground of adjusting composition and dosage of fd - 1 ; after analyzing anti - freezing damage mechanism, it is concluded that temperature is main factor, which affects structure and property of concrete. after two processes of temperature - elevation of hydration heat and temperature - descent of cold - environment, there is original damage in concrete and its existence leads to temperature fields, as results in temperature damage on transition phase > aggregate and cement mortar of concrete

    通過對負溫混凝土早期防凍分析研究認為，環境溫度對混凝土的結構形成及其性能的影響十分突出，水泥水化溫升和環境散熱降溫兩個過程導致混凝土結構內部產生不均勻溫度場，對過渡相、水泥砂漿以及骨料都能產生不同程度的溫度損傷，產生內部溫差應力裂紋，初始損傷也是不可避免的。
  4. 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。
  5. Based on the principles of designs of self - compacting and light aggregate concrete mix, sclc of lc30 - lc50 was developed by using absolute volume method. the main factors affecting the workability of sclc were studied by adopting the modified l - 800 fluidity instrument. the results indicate that the key techniques insuring good workability of sclc are about 30 % first - grade fly ash, about 50 % volume sand ratio, 2 % ~ 6 % dosages of silicon fume and compounded superplasticicizers with viscous ingredient

    採用改進l - 800流動儀，研究了影響lc40自密實輕骨料高性能混凝土工作性的主要因素，結果表明：粉煤灰摻量保持30左右，硅灰摻量為2 6 ，體積砂率為50左右和摻加具有粘塑組分的復合高效減水劑是保證sclc拌合物具有較好工作性的關鍵。
  6. Self - compacting concrete is a kind of concrete with low w / b ratio and good workability, which does not need to pug. it is a trend for both the researchers and the concrete engineer

    自密實混凝土是一種在較低水灰比條件下，不泌水，不離析，不需振搗或只需少量振搗即達到均勻密實的混凝土，是混凝土工程技術的一個重要發展方向，也是目前國內外學者研究的一個熱點。
  7. The results of research work show that the values of sand rate, aggregate grading, paste content and mineral admixtures control the degree of tightness pile up and the workability of fresh concrete, furthermore, they determined the mechanics performance and the durability of self - compacting concrete

    研究表明，砂率、集料級配、水泥漿量、礦物摻合料等因素的取值決定了免振搗混凝土的緊密堆積程度及新拌混凝土的工作性能，從而進一步決定了免振搗混凝土的物理力學性能及耐久性能。
  8. The study of the influence of sand percentage on the workability and strength of concrete

    砂率對砼和易性及強度影響的試驗研究
  9. L & t is required to control the quality of supplied concrete to ensure the qualified slump and workability of concrete during casting

    要求l & t注意控制混凝土的質量，保證供到施工現場的混凝土塌落度及和易性。
  10. A new kind of multiple anti - cracking additive composed of multiple organic and inorganic ingredient is developed. lt improves anti - cracking and impermeability property of concrete. and can meet the demands of compressive strength and workability of fresh concrete. at the same time, we offer the integrity manufacture method of anti - cracking hpc. we discussed the relationship among compositions, construction and properties, studied the chemical reactions of phases, made the mechanism of reinforced and crack - resistance of concrete clear, and made concrete designed according to properties and engineering demand

    通過系統深入的理論分析，運用多種現代分析測試手段，從材料各組份間的物理化學作用入手，系統研究材料中各組分與結構性能之間的關系，各相之間化學反應和各相分佈狀態，在已知的化學反應動力學和反應機理的基礎上，探明材料增強和抗裂原理，胡建勤：高性能混凝土抗裂性能及其機理的研究實現材料性能可設計的目的。
  11. This paper deals with high fluid concrete in which high strength ceramsite made from shale was used as coarse aggregate. effects of cement content, water - cement ratio, sand percentage, mineral admixture, grading and pretreatment of lightweight aggregate on compressive strength and workability of high fluid structural lightweight aggregate concrete have been studied. the rules of water absorption of high strength lightweight aggregate under different pressure and effects on uniformity of high fluid structural lightweight aggregate concrete have been studied too

    本文採用高強頁巖陶粒，摻加高效減水劑配製大流動性結構輕集料混凝土，討論了水泥用量、水灰比、砂率、礦物摻料及輕集料的級配和預濕方式對大流動性結構輕集料混凝土強度和工作性的影響；系統研究了高強陶粒在常壓和壓力下的吸水規律；研究了影響大流動性結構輕集料混凝土勻質性的因素，提出了解決大流動性結構輕集料混凝土分層離析的具體措施。
  12. In this paper, the so preparing self - compacting concrete with low and middle strength using super fine mountain sand artifical sand and phosphorus slag is studied systemically. through the study the influence of the shape, the proportion of the dust and the grade of sand to the workability and the mechanical property of self - compacting concrete, it is found that super fine mountain sand artifical sand are not suit to prepare low and middle strength self - compacting concrete, but when they are combined and the additive and assistant band material are used, c20 - c40 high performance self - compacting concrete is prepared ; the corresponding additive is developed to solve the delamination caused by the low proportion of banding material ; the evaluating system for the workability of low and middle strength self - compacting concrete is built ; the controlling method for production, construction and curing was set up. and the result of the research is applied into several projects

    通過分析特細山砂和機制砂的顆粒形態、粉末含量、顆粒級配等特性對自密實混凝土的工作性能和力學性能的影響，發現特細山砂、機制砂不宜單獨用於配製中低強度等級自密實混凝土，宜將特細山砂和機制砂進行合理復配，並選擇合適的外加劑和礦物摻合料，優化配合比設計，可生產c20 c40中低強度等級自密實高性能混凝土；研製開發出了具有高效減水、保塑、抗離析功能的外加劑，有效解決了中低強度等級自密實混凝土由於膠凝材料用量少而出現的離析、泌水問題；應用正交設計方法，對因素和水平進行合理選擇，確定了生產中低等級自密實混凝土的最優配合比；建立了中低強度等級自密實混凝土的工作性評價體系；提出了生產、施工及養護的質量控制技術方法。
  13. And compared with ordinary concrete, high performance concrete adding fly ash shows better workability. but there is an optimum mixing dosage of fly ash for crack resistance of concrete

    與普通混凝土相比，摻入粉煤灰可以改善混凝土拌和物的和易性，但粉煤灰對于混凝土的抗裂性存在一個最優的摻量。
  14. Products and systems for the protection and repair of concrete structures - test methods - determination of workability - part 4 : application of repair mortar overhead

    混凝土結構的防護和維修用產品和系統.試驗方法.加工性測定.第4部分:備用泥漿高空的應用
  15. Influence of water absorption and pre - wetted method of lightweight aggregate on the workability of concrete

    輕集料的吸水率與預處理時間對混凝土工作性的影響
  16. The results indicate that the limiting grain size of coarse aggregate has significant effect on the strength and workability of concrete, but it is lower than that of w / b ratio

    結果表明：粗骨料的最大粒徑對混凝土強度、和易性有明顯影響，但水膠比仍是影響混凝土強度及和易性的主要因素。
  17. By uses of handan raw materials, this paper studies the influence of coarse aggregate limiting grain size, water - binder ratio, fly ash replacement, sand - total aggregate ratio on the strength and workability of concrete prepared with low water - binder ratio

    摘要本試驗採用邯鄲當地的混凝土原材料，利用正交設計方法，試驗研究和分析了粗骨料最大粒徑、水膠比、粉煤灰摻量、砂率對低水膠比混凝土的強度及和易性的影響。
  18. The fourteen simply supported beams mixed with the polypropylene fiber are tested to study the effect of workability of concrete, presentation quality of structures, cracking load and stiffness of beam, and crack resistance of structures due to the polypropylene fiber

    本文通過14根摻聚丙烯纖維鋼筋混凝土梁的試驗，主要研究摻聚丙烯纖維對混凝土和易性和結構物外觀質量影響效果；對鋼筋混凝土梁開裂荷載的影響；對鋼筋混凝土梁剛度的增強效果；以及對鋼筋混凝土結構增韌阻裂的改善效果。
  19. The one of most important factor of affecting durabilities in construction concrete is chloride deterioration. the chloride penetration current exceeds 2, 000 coulomb in the no mineral admixtures silicate cement, using 30 % ~ 40 % fly ash it falls to 800 coulomb and the 60 % micro - slag falls to 500 coulomb ; though silica fume reduces penetration current, it deteriorates the workability of concrete

    氯離子侵蝕是影響混凝土結構安全性最重要因素之一，不摻加任何礦物摻合料，氯離子滲透電量一般大於2000庫侖；粉煤灰摻量在30 40 ，滲透電量達到800庫侖；礦粉摻量在60左右，滲透電量達到500庫侖，並具有較高的綜合性能；硅灰可以改善混凝土氯離子滲透能力，但惡化了混凝土工作性。
  20. Experimental results indicated that the polypropylene fiber can improve the workability of concrete availably, and can increase the presentation quality of structures with the voids and pits decreased ; the cracks of beam are controlled effectively, the width and length of crack decreased, the dispersibility of crack in beam face improved, and the ductility of beam increased ; and the cracking load of reinforced concrete beam is increased, the amplify up to about 30 %, simultaneity the ultimate bear capacity increased

    試驗研究表明，使用聚丙烯纖維后，能有效改善新拌混凝土的和易性，並能增強混凝土構件的外觀質量，減少構件表面蜂窩、麻面、氣孔、細小裂紋等；同時，在破壞試驗過程中發現梁的裂縫能得到有效控制，裂縫寬度減小，裂縫的發展高度降低，裂縫的條數增加，提高了梁截面的裂縫分散能力，增強了梁中混凝土的韌性；提高了鋼筋混凝土梁的開裂荷載，幅度可達30左右，增強了結構的延性，提高了結構的抗裂性能和屈服荷載。
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