dense concrete 中文意思是什麼
dense concrete
解釋
密實混凝土-
Based on the motion law of equal - width slit steady flow, the seepage calculation model simulating concrete face slab joints and face slab with dense cracks is studied and established under the extreme condition that slabs are destroyed
摘要基於等寬縫隙穩定流的運動規律，研究建立了混凝土面板極端破壞情況下面板接縫及密集裂縫型面板的滲流計算模型。 -
Under the central reclamation phase iii project, a world - class waterfront promenade will be built so people can stroll along the harbour front and enjoy the scenery. an oasis in a dense concrete jungle
因此，我們計劃發展一條連綿的海濱散步長廊，讓市民細覽海港景色，也為這旅遊點增添魅力，促進旅遊事業。 -
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。 -
At present, an anti - crack method is that expansive agent is mixed into concrete. the proper amount of the expansive agent mixed into concrete can ’ t only lessen the shrinkage of concrete but also improve the dense of concrete, the anti - infiltrate of concrete swell too
適量膨脹劑的摻入，不但可以明顯的減少混凝土的收縮，而且由於混凝土自身的膨脹作用，處于限制狀態下的混凝土密實性得以提高，其抗滲性能也得到顯著改善。 -
In recent years, during the detection of the established reinforced concrete or the prestressed concrete box girder bridges etc. the large structures, we can find that the concrete in particular structural positions such as the anchorage zones of prestressed reinforcement with dense reinforcement, the prestressed pipe in which the space of reinforcement or the thickness of concrete cover is small, the top and bottom flange of box girder and so on has brought great difficulty to concrete construction because of the small size and densely - packed reinforcement
對于變截面t梁、工字梁、箱梁等常見結構，截面形式復雜，一些部位尺寸較小且密集配筋，如梁頂板，梁底板，預應力管道間，混凝土不可避免的造成不密實導致耐久性降低，而這些問題往往為設計者所忽略。對于新建橋梁混凝土的密實度問題，尤其是新建橋梁關鍵部位的混凝土密實度和耐久性問題，人們研究和關心的較少，這也為橋梁的質量監督控制和使用壽命埋下了隱患。 -
The aggregate graduation and asphalt quality are two important aspects to ensure the road performance of asphalt concrete mixture. with its well - combined structure, the dense frame work structure, sma has eased up many conflicts in the road performance of the mixture to a such degree
混合料的級配和瀝青性能是保證瀝青混合料路用性能的兩個重要的方面，在級配上將骨架密實結構結合的較好的sma結構從很大程度上平衡了瀝青混合料的一些路用性能的矛盾。 -
The paper through making marshall and the wheel rut test sample joining the fiber in the asphalt concrete, carries on a series of experiments and studied the asphalt concrete to mix the textile fiber by the marshall stability, the water stability, the high temperature stability, the low temperature crack resistance energy, and carries on the contrast analysis to the ordinary dense gradation asphalt concrete of the performance
摘要通過將纖維加人瀝青混凝土中製成馬歇爾和車轍試件，進行一系列的試驗，研究瀝青混凝土摻纖維后的馬歇爾穩定度、水穩定性、高溫穩定性、低溫抗裂性能，並與普通密級配瀝青混凝土進行路用性能的對比分析。 -
Additional open space will be provided to meet shortfalls and serve as an oasis to the large population in central and wan chai who have hitherto been bounded within a dense concrete jungle
古典碼頭成新地標我們也會提供額外休憩用地，改善中環灣仔這石屎森林的環境，發揮市肺的功效。 -
The project is completed in the collaboration of the transportation college of jilin university and transportation science institute in jilin province. the paper mainly studies the characteristics and mechanical performance of small size member of bridge, the problems of concrete dense degree and shear lag effect of wide flange. the static load test and supersonic nondestructive test of four pieces of prestressed i - girder with varying section are carried out in bridge structure laboratory of jilin university
本文針對橋梁構件局部尺寸較小部位的混凝土密實度問題，進行了2片腹板寬度為14cm ， 2片腹板寬度為16cm的變截面預應力工字梁的靜載試驗和超聲無損檢測試驗，提出密實度系數的概念，對試驗梁的密實度進行定量評定，推導了工字梁的塑性系數公式，基於塑性理論給出了試驗梁的開裂荷載和極限承載能力計算公式，分析了試驗梁的密實度對其開裂荷載和極限承載能力的影響。
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