煤的膨脹度 的英文怎麼說

中文拼音 [méidepéngzhàngdù]
煤的膨脹度 英文
coal dilatation
  • 煤 : 名詞（黑色固體礦物） coal
  • 的 : 4次方是 The fourth power of 2 is direction
  • 膨 : 動詞（物體的長度或體積增加） expand; swell
  • 脹 : 動詞1. （膨脹） expand; dilate; inflate 2. （脹大） swell; distend; bloat
  • 度 : 度動詞[書面語] （推測; 估計） surmise; estimate
  • 膨脹 : expand; swell; dilate; inflate; puff; bulge; inflation; expansion; dilatation; buckling; swelling...
  1. The effects of mineral additive such as fly ash, slag, and dura fiber on concrete expansive property are studied, the results show that these mineral admixture reduce shrinkage in common concrete and also reduce expansive value in shrinkage - compensating concrete

    本文討論了粉煤灰、礦渣、杜拉纖維對混凝土膨脹性能的影響，在補償收縮混凝土中，摻合料使其膨脹率減低，杜拉纖維可以提高混凝土的體積穩定性，顯著提高劈拉強度。
  2. The pore of schsc is smaller and more homogeneous than that of nhsc. fourth, the contribution to concrete microstructure of the expanding agent is very little at early ages ; however it is obvious at late ages to a certain extent. fifth, for the contribution of the mixing content of fly ash is that the contribution to the degree of early age concrete hydration is obvious to some extent, and that the contribution to the shape of hydrate of concrete is obvious

    實驗研究表明:自密實混凝土由於粉煤灰的摻量較高，其早期的水化程度較低，但後期其細觀結構較普通混凝土好；自密實混凝土的骨料界面過渡區與水泥石的差別始終較普通混凝土小，其孔隙較普通混凝土小而均勻；膨脹劑對自密實混凝土早期的細觀結構影響不大，但對後期的細觀結構有一定影響；粉煤灰摻量對自密實混凝土的早期水化程度有一定影響，且其對自密實混凝土水化物的形態影響較大。
  3. Some respects of self - compacting high - strength concrete ( schsc ) made of fujian province ' s local material have been studied in this thesis as follows : 1. studies on microstructure of the schsc. three different mixed schsc and one normal high - strength concrete ( nhsc ) were observed by the scanning electron microscope at different sites and different ages of 1 day, 3 days, 7 days, 28 days and 60 days. from the test, the effects due to no vibrating and admixture on the microstructure of schsc were studied

    通過四組強度等級相當，分別為普通混凝土、兩組不摻膨脹劑的自密實混凝土（其粉煤灰的摻量不同）和摻有膨脹劑的自密實混凝土，在同一養護齡期的條件下（ 1天、 3天、 7天、 28天和60天） ，分別選擇粗骨料過渡區、細骨料過渡區、水泥石和砂坑作為觀測點，採用sem進行細觀掃描對比實驗，以研究自密實混凝土因免振搗的特性及摻合料對其骨料界面和水泥石結構的影響。
  4. In this paper, with the aid of orthogonal method, a cement insulation mortar was studied

    研究結果是對水泥保溫砂漿抗壓強度和干密度影響因素的主次順序是膨脹珍珠巖、粉煤灰、砂漿塑化劑。
  5. The expansion and strength of middle strength superplasticized expansive concrete develop more coordinately. fa reduces the early strength of middle strength superplasticized expansive concrete, and this make more expansion become invalid when the concrete is in plastic state

    中強流態膨脹混凝土的膨脹與強度性能發展比較協調，粉煤灰的加入降低了早期強度，使更多的膨脹變為無效膨脹消耗在仍處于塑性狀態的混凝土中，混凝土限制膨脹率減小。
  6. This paper analyses the problem of concrete cracking and leakage, and set up the model of the middle or low - strength steel slag anti - cracking and impermeable concrete ( acic ) on the base of the analysis. the four principles of water permeable resistance character, volume stability character, toughness and anti - chemical corroded character have been put forward for raw materials selection and durability design of acic, acic is designed by the theory of composite material and the theory of fiber - reinforced, and two series of acic, such as fly ash series and steel slag series, have been manufactured by means of mineral admixture, hybrid fiber and chemical admixture. hydrating heat, macro - mechanics quality, durability and microstructure of the acic have been researched

    本文對中低標號大體積混凝土滲透開裂問題進行了研究，從混凝土自身結構形成與經濟角度指出大摻量粉煤灰與膨脹劑復合配製大體積混凝土的問題所在，提出採用鋼渣微細礦粉配製中低標號防滲抗裂混凝土的思路，運用復合材料理論設計中低標號防滲抗裂混凝土，提出了低水化熱、抗滲性能、體積穩定性、韌性和抗沖磨性能是中低標號防滲抗裂混凝土材料選擇和耐久性設計的主要原則，採用鋼渣微細粉復合混雜纖維、化學外加劑的技術路線，配製了適合於深水等特殊環境中的大體積中低標號鋼渣系列防滲抗裂混凝土，對其進行水化特性、宏觀物理力學性能、耐久性和微觀結構研究。
  7. The results show that the shrinkage of cement paste can be compensated by the new mgo - based expansive materials well, only if the burning temperature and burning time of expansive material are controlled and the dosage of expansive material in cement is suitable according to the hydration temperature and with fly ash or not

    結果表明，根據一定條件下（如養護溫度、摻加粉煤灰等）水泥漿體的收縮特性來調整膨脹材料的煅燒溫度和煅燒時間，控制合理的摻加量，新型鎂質膨脹材料可以有效地補償水泥漿體的收縮。
  8. Abstract : controlling aar with high quality i grade fly ash has been researched. the result shows that the content is more important than the quality for the effect on controlling aar. the solubility of the fly ash contained alkali is inquired in differ alkali concentration solution. the mechanism of low content accelerating swell and yet high content controlling swell is discussed when controlling aar with the fly ash contained high alkali content

    文摘:研究優質級粉煤灰對堿骨料反應的抑制效果，結果表明，用粉煤灰抑制堿骨料反應，其摻量因素的影響大於品質因素的影響；探討了粉煤灰中的堿在不同濃度堿溶液中的溶出情況及用高堿含量粉煤灰抑制堿骨料反應時，低摻量促進膨脹，高摻量抑制膨脹的機理。
  9. In this paper, the influences on concrete shrinkage and splitting tensile strength by the varieties and contents of the raw materials, such as cement, sand, fly ash, water - reducer and expansion agents, are studied. the possibility of the prevention of the concrete cracking by proper concrete proportion design is discussed

    本文著重研究了水泥、砂、粉煤灰、減水劑、膨脹劑等材料的品種、用量對混凝土收縮性能及混凝土劈裂抗拉強度的影響，探討了通過合理的配合比設計達到減少混凝土收縮、提高混凝土劈裂抗拉強度進而降低混凝土開裂風險的可能性。
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