slow permeability 中文意思是什麼
slow permeability
解釋
慢滲透性- slow : adj 1 慢的，緩慢的 （opp fast; quick; rapid; swift）。2 遲鈍的，笨的；沒精神的，不活潑的；（表演...
- permeability : n. 1. 透過性，可透性，滲透性；滲蝕度；【航空】（氣球氣體的）透出量。2. 【物理學】磁導率，磁導系數（＝magnetic permeability）。
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The research shows that main hydrogeological characteristics of the beishan area is water - bearing character, low permeability and slow water movement while the major chemical feature of groundwater is high mineralization
研究表明，弱含水、低滲透、慢流速是區內主要水文地質特徵，蒸發濃縮形成的高礦化是地下水的主要化學面貌。 -
The result of macro - quality experiments show : mineral admixtures markedly slow the hydrating velocity of cement slurry, decrease and delay the hydrating max - temperature, in which steel slag is more effective ; expansive agents compensate concrete shrinkage, enhance the concrete dense degree, strengthen the interfacial layer between fiber and cement matrix and improve the physical mechanics qualities of acic ; minimal admixtures markedly improve the concrete workability property, increase the concrete later intensity & density and the capability of anti - chemical attack and anti - permeability ; hybrid fiber reinforces the toughness of obviously acic by the means of anti - cracking effect of fiber with different sizes and different properties in the corresponding construction levels
實驗結果顯示：鋼渣摻合料能顯著減緩水泥漿體水化速率，降低砂漿的水化溫升並延遲最高溫升時間；補償混凝土收縮，提高混凝土密實度，加強纖維與水泥石的界面粘結，增強混凝土力學性能，但不能明顯改善混凝土韌性。混雜纖維通過纖維的不同尺度與不同性質在相應的結構層次上產生阻裂效應，增韌鋼渣防滲抗裂混凝土；增加混凝土的破壞極限能，極大提高混凝土抗彎曲能力和韌性指數，改善混凝土脆性。 -
When the stress acted on concrete specimens exceed 60 % of ultimate compressive strength, the coefficient ( k ) will increase obviously but the largest change is still within the order of 10 - 9 cm / s. the time - dependant characteristic can be expressed by the function k = ( a + ct ) / ( l + bt ). the coefficient k decreased significantly in the first 40 ~ 60 hours of the water permeability test, and the decreasing rate became slow as the time goes on
混凝土的滲透穩定性則表現為滲透系數會隨滲透時間增加而減小，減小的趨勢是起初的40 60小時內下降最快，其後愈來愈平緩，其規律可用公式k = （ a + ct ） （ 1 + bt ）來表示。 -
Abstract : the differences between loess and sand in liquefaction mechanism, models of pore water pressure generation, coefficients of volumetric compressibility and permeability coefficients are preliminarily analyzed to realize the characteristics, the rapid increase, slow dissipation of pore water pressure and large settlement during loess liquefaction
文摘:初步分析了黃土與砂土在液化機理、孔壓增長模型、體積壓縮系數以及滲透系數方面的差異以便認識黃土液化具有的孔壓增長快、消散慢和沉降大的特性。
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