shrinkage of concrete 中文意思是什麼

shrinkage of concrete 解釋
混凝干收縮
  • shrinkage : n. 1. 皺縮;縮水;減縮;減少。 2. 【物理學】縮誤;縮減量;(肉類在運輸、加工過程中的)重量的損耗。 shrinkage in the market place 市場萎縮。
  • 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. Test methods for dry shrinkage of aerated concrete

    加氣混凝土乾燥收縮試驗方法
  2. Experimental study on autogenous shrinkage of high - strength concrete

    粉煤灰對混凝土補償收縮性能的影響
  3. Study on early autogenous shrinkage of high strength lightweight aggregate concrete hslwac

    高強輕集料混凝土的早期自收縮研究
  4. The calculation modes of the coefficient of shrinkage and creep of the bulgy core concrete in steel tube are discussed. based on a few reasonable hypotheses and the stress - strain relation of concrete acquired by the " adjusting valid modulus depending on load time " method, a compact formula is reasoned out, which is applied to calculate the equivalent elastic modulus of the bulgy core concrete considering the affection of shrinkage and creep. so, the analysis of the affection on cfst arch bridge by shrinkage and creep can be progressed by pole - girder fem, further more, the analysis precision is quite high

    本文還對核心膨脹混凝土特殊的收縮、徐變系數計算模式展開了探討,在合理的假設前提下,採用「齡期調整的有效模量法」得到的混凝土的本構關系,推導出鋼管內核心混凝土在考慮徐變影響后的等效彈性模量計算公式,並以此為基礎採用桿系有限元方法來對鋼管混凝土拱橋進行較高精度的收縮徐變分析。
  5. The experimental results show that these models can express precisely the isotherm hydration heat emission curve of portland cement and the autogenous shrinkage process of concrete prepared with portland cement

    實測數據檢驗結果表明,這2個模型可以用於模擬硅酸鹽水泥的等溫水化放熱曲線,以及用硅酸鹽水泥配製的混凝土的自收縮發展過程。
  6. The results of experiment on the relationship between tensile strength, shrinkage, self - desiccation shrinkage and flat restraint cracking show that sra ' s physical shrinkage - reducing effect and ea ' s chemical expansion effect greatly enhance the volume stability of concrete and reduce the probability of early - cracking

    對減縮劑與膨脹劑抗拉強度、干縮、自乾燥收縮及平板約束開裂的試驗結果表明: sra的物理減縮作用及膨脹劑的化學膨脹作用,大大提高了混凝土早期的體積穩定性,降低了早期開裂的概率。
  7. In the design, the construction measures such as application of shrinkage - compensating concrete, arrangement of spacing layer between the foundation rock and the bottom slab, adding outside waterproof layer, flexible connection between outlet pipe with side - wall, integerated concrete placement of pump seat with bottom slab and design of reinforcement with application of advanced calculation theory are used according to the characteristics of lager span, larger volume and complex loading conditions of the understructure

    針對下部結構跨度大、體積大、受力復雜的特點,在設計中採取多種措施,包括採用補償收縮混凝土、基巖與底板間設隔離層、增設外防水層、出水管與邊墻採用柔性連接、機座與底板整體澆注、採用先進計算理論指導配筋。
  8. The dynamic models of hydration reaction of cement and autogenous shrinkage of concrete were constructed respectively based on the multi - composition and multi - scale hydration reaction of cement

    摘要基於水泥的多組分和多尺度水化反應的原理,分別建立了水泥的水化反應和混凝土自收縮的動力學模型。
  9. But the autogenous shrinkage of core concrete will be increase with the increase of core concrete strength. the influence of autogenous shrinkage to high strength cfst should be investigated

    但是隨著混凝土強度的提高,核心混凝土的自收縮值也將增大,混凝土的自收縮對鋼管高強混凝土構件產生何種影響有待研究。
  10. This paper aims at the seriousness of concrete structure crack and presents one of main cause is that concrete early - age ( especially autogenous shrinkage ) become large through the systems academic analysis

    本文正是針對混凝土結構工程早期裂縫的嚴重性,通過理論分析,指出目前混凝土早期收縮(主要自收縮)的變大是造成這種早期裂縫的主要原因之一。
  11. 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。
  12. Abstract : the continuous composite arch bridges are introduced in this paper. some research results of the bridges, such as the basic performance, creep and shrinkage of concrete, principle of the controlled completed bridge state, relation between structure and internal force, construction methods and cases, are also reported. the suggestions for consideration in design are given in this paper

    文摘:介紹了連續拱梁組合橋在受力性能、混凝土收縮徐變、成橋狀態控制原則、構造與受力關系,以及常用施工方法與工況描述等方面的研究體會,並給出了可供這類橋梁設計參考的意見。
  13. Standard test method for linear drying shrinkage of concrete masonry units

    混凝土砌塊線性乾燥收縮度的標準試驗方法
  14. 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。
  15. The internal force redistribution in continuous steel - concrete composite girders due to shrinkage of concrete

    混凝土收縮引起連續組合梁的內力重分佈計算
  16. It is concluded that we can take measures to reduce shrinkage of concrete during casting of beam in wharf construction

    在現澆碼頭上橫梁時可採取措施,減小混凝土收縮。
  17. If stone ballast block blended with shrinkage - reducing agent, polypropylene fiber and expansion agent can reduce its own shrinkage while can ’ t worsen its own other properties, it is undoubted that modification of stone ballast block is beneficial to prevent crack in wall filled with stone ballast block, because these modification materials can respectively reduce, restrain and compensate shrinkage of concrete

    在混凝土砌塊中摻加減縮劑、聚丙烯纖維和膨脹劑等減縮、限縮和補償收縮材料如能降低砌塊的收縮率,且不劣化砌塊的其它性能,則無疑有利於砌塊墻體的開裂防治。首先進行砌塊材料的改性試驗研究。
  18. Shrinkage of concrete

    混凝土的收縮
  19. Because concrete can be made diversified form and dimension, and have favorable wearing, and it ’ s cost is very low, concrete is the used very widely and generous, but the shrinkage of concrete is puzzling all the engineers, especially the pumping concrete, high performance concrete and high intension concrete. so it is necessary to invent a new shrinkage reducing agent

    但是混凝土的收縮裂縫一直是困擾著工程界的一個難題,尤其是泵送混凝土、高性能混凝土( hpc )及高強混凝土( hsc ) ,所以開發一種新型的、能夠有效降低混凝土收縮的混凝土減縮劑意義重大。
  20. Adopting fd - 1 admixture, c50 concrete can be obtained, which has excellent adaptability for environment temperature ? 5 c ; self - shrinkage of concrete is inevitable, and its variation tendency based on w / c and hydration age, fd - 1 has wonderful inhibition for self - shrinkage, and meanwhile anti - friction property can be promoted

    在fd - 1組分對負溫混凝土的耐久性能研究中,認為影響自收縮的主要因素是水灰比和齡期; fd - 1外加劑對水泥自收縮有很好的抑制作用,能夠有效的提高水泥砂漿的耐磨性能。
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