properties of fresh concrete 中文意思是什麼

properties of fresh concrete 解釋
可塑混凝土性能
  • properties : （特性）命令修改特性
  • of : OF ＝Old French 古法語。
  • fresh : adj 1 新產生的，新制的；新獲得的；新近的，新到的。2 清新的；生氣勃勃的，強健的，氣色好的，鮮艷的...
  • 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. A new kind of multiple anti - cracking additive composed of multiple organic and inorganic ingredient is developed. lt improves anti - cracking and impermeability property of concrete. and can meet the demands of compressive strength and workability of fresh concrete. at the same time, we offer the integrity manufacture method of anti - cracking hpc. we discussed the relationship among compositions, construction and properties, studied the chemical reactions of phases, made the mechanism of reinforced and crack - resistance of concrete clear, and made concrete designed according to properties and engineering demand

    通過系統深入的理論分析，運用多種現代分析測試手段，從材料各組份間的物理化學作用入手，系統研究材料中各組分與結構性能之間的關系，各相之間化學反應和各相分佈狀態，在已知的化學反應動力學和反應機理的基礎上，探明材料增強和抗裂原理，胡建勤：高性能混凝土抗裂性能及其機理的研究實現材料性能可設計的目的。
  2. Workability - design of fresh concrete was studied from rheology aspect. mortar slump flow test was further developed to evaluate properties of water - reducers and compatibility between cement and water - reducer for mortar. a method for measuring water absorbed by coarse aggregate in fresh concrete was put forward

    從流變學角度對新拌混凝土工作性進行了以下研究：進一步完善了砂漿坍落擴展度試驗方法，用於測評砂漿中減水劑飽和摻量及水泥對外加劑的適應性。
  3. Measures for further developing concrete mix design were presented based on above work. for example, adopts pfca as an index in designing durability of concrete, uses mortar slump flow test to select cements and water - reducers and to measure saturation dosage of water - reducer in mortar and then determine optimum dosage of it in concrete, uses bar - slump test to determine stability and fluidity of fresh concrete, and consequently, the workability of high fluidity and high stability concrete such as pumped or self - compacting concrete can be designed by adopting proper cfvm determined in terms of rheological properties of designed mortar measured with cone - based rheometer

    如採用粗集料破碎率作為耐久性設計的一個指標；採用砂漿坍落擴展度試驗選擇水泥和減水劑，確定砂漿中減水劑的飽和摻量，並通過上述數學模計算混凝土中減水劑的飽和摻量，以此為參照確定最佳摻量；採用障礙坍落度試驗確混凝土的穩定性和流動性，結合由漏斗式砂漿流變儀測定的砂漿流變性能確定合理的砂漿填充系數，從而實現對高流動性高穩定性要求的混凝土（如泵送和免振自密實等）的工作性設計。
  4. Properties of fresh concrete

    可塑混凝土性能37
  5. Due to the diversity and complexity of the scc ingredients which influence each other, it is difficult to describe the relationship between the workability of fresh concrete and a single mixing effect factor, so as the mechanical properties of hardened concrete

    由於自密實混凝土組分復雜多樣，各組分間又相互影響，故其拌合物的工作性和硬化后的力學性能很難用單因素的回歸關系加以描述。
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