silica ratio 中文意思是什麼
silica ratio
解釋
硅率-
The orthogonal optimization of reactive mixture ratio of silica xerogels
正交優化二氧化硅干凝膠反應配比的研究 -
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。 -
Based on tests of nine 1 / 2 - scaled model slabs under vertical loads, the paper analyzed load - deformation curve and proposed limit value of height - width ratio under axial loads. 2. based on aseismic tests, the paper put forward a model of concrete frame, silica brick and a combination of the two, proposed that the silica brick works as a 45 compression bar, analyzed the factors which may influence bearing capacity of the slab and advised a formula including the numbers of bays and of storeys of the frame
通過對墻板模型的抗震性能試驗研究，建立了由鋼筋混凝土框格、砌塊以及兩者協同作用三個部分組成的承載力極限狀態下的理論簡化計算模型；提出了墻板中填充塊等效斜壓桿寬度按45度計算的統一量化標準；分析了影響墻板承載力的主要影響因素，給出了表達墻板框格層數和跨數不同的斜截面承載力實用設計計算公式。 -
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 。 -
The results showed that the melting ratio of silica flux decreases and the complete melting time prolongs with the size of silica flux and matte grade increasing, and the effect of the blowing air and oxygen enrichment is not remarkable in the high grade copper matte converting process
對于高品位冰銅轉爐吹煉，鼓入氣體流量和氧濃度對石英熔劑熔化率影響不顯著；熔劑粒度和冰銅品位對熔化率影響顯著，並隨著熔劑粒度和冰銅品位的增加，熔劑熔化率降低，完全熔化時間延長。 -
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 。 -
6. the durability of concrete structures resisting chloride diffusion in different water cement ratio and different contents of fly ash and silica was analyzed and durable life was predicted based on the results of the test, which will be helpful to preparation of high performance concrete ( hpc ) as well as durability design and assessment of concrete structures
系統地研究了低水膠比及摻加粉煤灰、硅灰的高性能混凝土的電滲透性和氯離子擴散系數，分析了水膠比以及粉煤灰和硅灰等活性集料對混凝土結構抵抗氯離子侵蝕的耐久性能的影響，並對高性能混凝土結構抗氯離子侵蝕的耐久壽命進行了預測，為氯鹽污染環境下高性能混凝土的配製以及混凝土結構耐久性評估與設計提供參考。 -
It analyzes the effect of water / binder ratio, percentage of silica fume and slag and super plasticizer on the strength of the high strength & high performance concrete. and then, the optimum of mix proportions of every composition is acquired according to the comprehensive equilibration theory
分析了水膠比、硅灰摻量、礦渣摻量和高效減水劑摻量對高強高性能混凝土強度的影響，並根據綜合平衡法得出本文所採用的原材料體系的最優配合比。 -
4 ) the effects of fly ash and silica fume on plastic shrinkage cracking were related to the actual w / b ratio of concrete mixture
對粉煤灰，這一水膠比界限約為0 . 36 ，對硅灰約為0 . 4 。 -
There was a borderline w / b ratio, above which concretes containing fly ash or silica fume were more sensitive to plastic shrinkage cracking than that of concretes without fly ash or silica fume, and below which fly ash or silica fume high performance concretes can restrain the plastic shrinkage cracking
6 ）在室內控制環境條件下，降低環境溫度、風速以及提高相對濕度均可減少新拌混凝土水分蒸發速率，從而減少塑性收縮裂縫。相比之下，提高環境相對濕度對減少水分蒸發和裂縫更為明顯。 -
Secondly, preparation of reactive powder concrete with air quench steel slag and its performance are mainly studied through experiment. the results show that : ( 1 ) when binder - to - sand ratio is 1, silica fume percentage of binder is 15, and steel fiber percentage in volume is 4, reactive powder concrete prepared can get best overall performances
其次，作者主要對鋼渣活性粉末混凝土配製及其性能進行了試驗研究，結果表明： （ 1 ）膠砂比為1 : 1 ，硅灰摻量為15 ，鋼纖維摻量為4時所配製的活性粉末混凝土的綜合性能比較理想。 -
Based on the basic principles of densified systems containing homogeneously arranged ultra - fine particles ( dsp ) and reactive powder concrete ( rpc ) adopted by foreign researchers specialized in building materials, silica rume, ultra - fine fly ash, quartz powder, 52. 5 - class portland cement and superplasticizer were selected and mixed, the theoretic of mixed steel fiber reinforced cement - based composite materials and of micro - aggregate filling voids were applied, the composition was adjusted, the mixture ratio of rpc was optimized, a suitable curing schedule was adopted, in the result, an ultra - high performance concrete designated rpc was successfully prepared by normal technology methods
本文基於超細粒聚密材料（ dsp ）和活性粉末混凝土（ rpc ）配製的基本原理，選用硅灰、粉煤灰、石英粉和硅酸鹽水泥，輔以高效減水劑，採用多重復合的技術路線，運用混雜鋼纖維增強理論和微集料填充密實原理，調整材料組成，優化混凝土配合比，結合適宜的養護制度，在現有技術條件下，成功制備出了rpc200材料。 -
For the decrease of the ratio of si / c, c / n from water to sediment, it is suggested that organic carbon is recycled more rapidly than biogenic silica, while organic nitrogen is recycled faster than organic carbon
水體和沉積物中si / c 、 c閃比值的差異顯示有機碳的循環比生物硅快，而有機n組分的循環又比有機c快。
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