silica fume 中文意思是什麼

silica fume 解釋
含硅煙霧
  • silica : n. 【礦物】硅石，二氧化硅。
  • fume : n 1 〈常 pl 〉煙氣；香氣，臭氣；熏煙；水蒸氣；煙霧。2 激昂，激怒。vt 1 （用煙）熏。2 烘製（木材等...
  1. The analysis indicates that micropacking silica fume works to the density and relative density of rpc, and its pozzolanic effect helps the strength of rpc

    硅灰的微填充效應有利於提高活性粉末混凝土的密度和相對密度，而火山灰效應有利於提高其強度。
  2. Through direct pullout test, we examine the effect of the water to cement ratio, contend of steel fiber and silica fume on the bond behavior ; compare the bond behavior of two types of cfrp bars with difference surface treatment ( r1 bars and g1 bars ), and reprocess the one of inferior bond strength ; investigate the bond stress distribution along the bond length of cfrp bars, and assess the adequacy of some exist analytical models of bond - slip behavior to reproduce the experimental bond behavior

    本文主要通過直接拉拔試驗，考察水膠比、鋼纖維摻量、硅灰摻量以及cfrp筋的表面處理類型等材料參數對粘結性能的影響，並對粘結效果較差的cfrp筋研究了表面處理方法，以提高cfrp筋與rpc的粘結性能;通過在cfrp筋表面粘貼應變片，測定了粘結應力沿cfrp筋埋長的分佈情況，並對現有的粘結滑移本構模型與試驗結果的擬合效果進行了比較。
  3. On the basis of analysis on the pairwise action of cement paste, nanometer silica fume and clay, the paper proposes the reinforcement mechanism of the cemented soil stabilized with nanometer silica fume. the reinforcement mechanism includes cementation action of cement hydrate, ionic exchange and quadrate reaction of clay particle, pozzolanic effect, filling effect and cementation action of nanometer silica fume

    在研究水泥漿?納米硅粉、納米硅粉?粘性土、水泥漿?粘性土相互作用的基礎上，將納米硅粉水泥土的固化機理總結為：水泥水化物的膠結作用、粘土顆粒中的離子交換效應和「二次反應」 、納米硅粉的火山灰效應、納米硅粉的填充效應、納米硅粉的膠結作用。
  4. Based on testing results and soil theory, the modified mechanism of the nanometer silica fume in the clay is proposed : water molecule adsorption action, cementation action and filling action. combining the sem tests, the microstructure features of the cemented soil of nanometer silica fume are concluded

    設計了三組室內試驗，分別探討了納米硅粉對粘性土物理力學性能的影響；結合試驗結果和土質學基本理論，提出從水分子吸附作用、膠結作用、填充作用三個方面探討納米硅粉與粘性土之間的作用機理。
  5. Standard specification for silica fume used in cementitious mixtures

    粘結混合料中使用的硅酸氣體的標準規范
  6. The paper discusses mechanism performance, durability and resistance to de - icing salt concrete, this kind of concrete is made with air - entraining agent or silica fume and used in the trial section construction of benxi - dandong freeway ' s charge square which is located in dandong

    本文通過在混凝土中摻入引氣劑或硅粉，來配製抗除冰鹽混凝土，並對其進行力學性能和耐久性測試，重點試驗其抵抗鹽凍能力，並用於本丹高速公路丹東段的收費廣場試驗路施工。
  7. Orthogonal design application for the experiment of silica fume concrete

    正交設計在硅粉混凝土試驗中的應用
  8. Study on strength property of nanometer silica fume reinforced cemented soil and reinforcement mechanism

    納米硅粉水泥土的強度特性及固化機理研究
  9. A study of pore specific surface area and its correlation with the strength of silica fume cement paste

    硅粉水泥石中的孔比表面積及其與強度的相關性
  10. In this article, the steel fibre is a kind of industrial wastes - stainless steel fibre dregs. the use of it is helpful in comprehensive utilization of resource and environment protection. the author of this article used orthogonal test design, arranged the test scheme scientifically, selected material, at last yield a high strength concret, whose strength exceeded c60, mainly by using 42. 5 ordinary portland cement, silica fume, superplasticizers, stainless steel fibre dregs and so on

    本文所用的鋼釬維是一種工業廢料?不銹鋼纖維渣，它的應用有利於資源的綜合利用和生態環境的保護本文在廣泛閱讀國內外有關資料的基礎上，採用正交設計，科學地安排試驗方案，精心選擇材料，用42 . 5普通硅酸鹽水泥、硅灰、高效減水劑、不銹鋼纖維渣等材料，採用常規工藝配製出了強度達到c60的高強混凝土，並且通過對試驗數據的分析，給出了最優配比方案。
  11. The author of this article used orthogonal test design, arranged the test scheme scientifically, selected material aboratively, at last yield a ultrahigh strength cement - based material ( uhscm ), whose compressive strength exceeded 120 mpa, mainly by using 625r ordinary portland cement, superfine aggregate - - silica fume, superplasticizers and so on

    本文在廣泛閱讀國內外有關資料的基礎上，採用正交設計，科學地安排試驗方案，精心選材，用625r普通硅酸鹽水泥、超細顆粒集料硅灰、高效減水劑等材料，採用常規工藝配製出了一種抗壓強度超過120mpa的超高強水泥基材料。
  12. It is indicated that the hydration process of cement - based materials with slag, fly ash and silica fume is different in some degree from that of neat cement because of the difference in mineral structure and hydration mechanism. the periods of accelerating, decelerating and terminating are prolonged and hydration reaction decelerates. the second peak of rate curve of the heat evolution could be divided into two small peaks, which are contributed to the hydration of clinkers and mineral mixtures at the temperature of 30 but when temperature comes to 50, the two small peaks combine into one and the reaction accelerates

    結果表明，與硅酸鹽水泥相比，由於礦物摻合料與水泥熟料在活性和水化機理上的差異，水化歷程有較大的改變：多組分體系誘導期、加速期和衰減期延長，水化反應速率明顯降低；低溫時，水化放熱速率曲線上的第二放熱峰細化成分別對應于熟料和礦物摻合料水化的兩個小峰；高溫時，反應速率加快，雙峰合併；進一步研究發現，摻合料的種類與摻量對水化歷程也有較大的影響；建立了適用於多組分水泥基材料不同水化階段的水化動力學方程。
  13. The conclusions are as follows : ( 1 ) the compose of rpc has an effect on the bond behavior between cfrp bars and rpc : the bond strength between cfrp bars and rpc will increase with the decrease of water to cement ratio, but doesn ’ t obviously ; the adding of steel fiber can improve the bond behavior between cfrp bars and rpc significantly, but steel fiber will also effect the workability of rpc, consider the bond behavior and economy, the content of steel fiber should be 2 % ;. silica fume can improve the bond strength between cfrp bar and rpc, but the bond strength isn ’ t in proportion to the content of silica fume, in this experiment, the optimal content of silica fume is 0. 25 to 0. 35

    試驗研究得到如下結果: （ 1 ） rpc的材料組成對rpc與cfrp筋粘結強度的影響: cfrp筋與活性粉末混凝土的粘結強度隨著水膠比的降低而提高，但是提高的幅度並不明顯;鋼纖維的摻入，可以顯著提高cfrp筋與rpc的粘結強度，但是鋼纖維的增強效果與摻量並不是線性增加的關系，從綜合經濟性及粘結強度兩方面考慮，鋼纖維的最佳摻量為2 % ;摻入硅灰有利於改善粘結性能，但其摻量有一最佳范圍，在本次試驗中，硅灰的最佳摻量為0 . 25 0 . 35 。
  14. Through strength tests and xrd tests for cemented stone, the paper presents action mechanism of the nanometer materials in the cement hydration and hardening process : pozzolanic effect, filling effect, acceleration action for the cement hydration, and improving action for microstructure. from the four aspects, the modified mechanism of the nanometer silica fume and ordinary silica fume in cement paste are compared. the analysis results show that the particular properties of the nanometer silica fume include particle fineness, crystal structure and surface hydroxy, etc. a serial of laboratory tests are performed to study physical and mechanic properties of the clay with the addition of the nanometer silica fume

    結合水泥石強度試驗和xrd試驗，從火山灰效應、填充效應、水泥水化促進作用和微結構改善作用等方面探討了三種納米礦粉在水泥水化硬化過程中的作用機理；從這四個方面出發，對比分析了納米硅粉和普通硅粉作用機理的異同點，分析表明，納米硅粉的優異特性主要表現為顆粒細度、晶體結構、表面羥基等特性。
  15. To the common concrete, adding fly ash or blast furnace slag can decrease the shrinkage rate, but adding silica fume deteriorate the shrinkage rate

    其早期收縮主要是塑性收縮，而後是冷縮和自收縮，長期收縮以乾燥收縮為主。
  16. The results suggest that nanometer silica fume ( nanometer siox ) can greatly improve the strength of cemented soil at various curing period, nanometer aluminium fume ( nanometer aljos ) can not improve the strength, and nanometer titanium fume ( nanometer tio2 ) still reduce the strength until curing period of 90d

    試驗結果表明，適宜的納米硅粉摻入比下，各個齡期的水泥土強度顯著提高；納米鋁粉對水泥土的增強效果不明顯；直至90d時，納米鈦粉仍然降低水泥土強度。
  17. At the same time fly ash and silica fume also can repress the anti - sulfate attack and the alkali - aggregate reaction ; in addition, the relation between air - entraining admi xture, cementitious materials quantity with freezing - thaw property of concrete were studied ; and according to the different affecting factors the durable life of concrete was estimated

    同時粉煤灰、硅灰還可以抑制硫酸鹽侵蝕及堿集料反應；此外，分析了混凝土中含氣量、膠凝材總量等與混凝土抗凍性的關系。並且，根據相應影響因素對混凝土耐久性壽命進行了預測。
  18. Based on this system the cracking resistence of portland cement paste system was tested. also the effect of fly ash, slag, silica fume and admixtures on the cracking at early ages was studied

    本文對純硅酸鹽水泥膠凝體系的抗裂性能進行了研究，同時試驗考察了粉煤灰、礦渣、硅灰和外加劑對膠凝體系早期抗裂性能的影響。
  19. The borderline w / b ratio for fly ash and silica fume concrete is about 0. 36 and 0. 4, respectively. 5 ) polypropylene fiber can make them quite effective in the suppression and stabilization of microcracks in fresh concrete matrix

    7 ）在室外太陽輻射、 8m / s風速條件下，新拌混凝土的塑性開裂與水灰比有關，水灰比界限約為0 . 4 。
  20. The author of this article used orthogonal test design, arranged the test scheme scientifically, selected material carefully, at last yielded an high strength lightweight aggregate concrete material ( hslacm ), whose compressive strength exceeded 50 mpa and quality under 1950kg / m3, mainly by using 42. 5 ordinary portland cement, expanded fly ash aggregate, silica fume, superplasticizers and so on

    本文是在廣泛閱讀國內外有關資料的基礎上，採用正交設計，科學地安排試驗，精心選材，用42 . 5普通硅酸鹽水泥、粉煤灰陶粒、硅灰、高效減水劑等材料，採用一般工藝配製出了一種抗壓強度超過50mpa 、質量低於1950kg m ~ 3的高強輕骨料混凝土材料。
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