韌度指數 的英文怎麼說
中文拼音 [rèndùzhǐshǔ]
韌度指數
英文
toughness index-
Based on these results and the theory of fracture mechanics set up the new evaluation method ? racture - cmod toughness method. the concept of strength and toughness index of steel fiber concrete is founded
在此基礎之上，建立了以斷裂力學為理論基礎的鋼纖維韌性評測方法? ?斷裂cmod韌度指數法；提出鋼纖維混凝土強韌雙重指標概念。The influence factors of brittleness of hslc such as w / b ratio, sand percentage, type of aggregate and binder constitution are analyzed by the experiment : in order to improve the toughness of hslc, we study the function of fiber, polymer, aggregate and low - layer steel fiber on improving toughness, and explain the mechanism of improving toughness of them
最後採用這四種技術復合增韌，得到了和理想結構模型相符的高強高韌性輕集料混凝土，較基準輕集料混凝土抗壓強度增加16 . 3 ，抗彎強度增加97 ，沖擊韌性提高171 . 9 ；劈裂抗拉強度增加52 . 6 ，韌性指數提高19 . 2倍，並且具有耐久、經濟等優良性能。Under the direction of such theories, the influence of the composition of the concrete to the workability, mechanical property and durability of hplc is analyzed systematically ; the key technology of the preparation of hplc was grasped. the theory of strength improvement of subsidiary bonder is detected, special additive - fdl for hplc is made, lc40 - lc60 hplc with the slump over 18cm, the slump flow over 50cm, segregation degree below 5 %, small drying shrinkage, high tension strength and long durability is prepared. the concept and experimental method of the segregation degree of the mixture is put out and the analytical system of high performance hplc is built
以設計理念和設計理論為指導，系統研究了輕集料、輔助膠凝材料等組分及其配比參數對輕集料混凝土工作性能、力學性能和耐久性能的影響規律，探明了輔助膠凝材料對于輕集料混凝土的增強機理，研製出能夠有效控制輕集料混凝土拌和物分層離析度和降低坍落度經時損失的專用外加劑fdl ，掌握了制備高性能輕集料混凝土的關鍵技術，制備出坍落度大於18cm 、擴展度大於50cm 、分層度小於5 、低干縮、高韌性、高耐久的lc40 lc60高性能輕集料混凝土。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。In addition, woven fiber grid can overcome the shortcoming of steel " s easy corrosion and high density. so it is also a new researchful tendency to substitute woven fiber grid for steel in concrete
在混凝土梁中鋪設編織纖維格柵后，其抗彎強度與抗彎韌性指數得到大大提高，另外纖維格柵還克服了鋼筋易銹蝕和容重大的缺陷。Based on these test results, the effect of the kind of fiber on the reinforcing and toughening state of sfrc is analyzed the experimental results show that the kind of fiber affect the reinforcing and toughness state of sfrc greatly. the experimental results are analyzed using fracture - cmod toughness method, flexural toughness index isjiojao and toughness index design value
在試驗的基礎上，分析了纖維種類對鋼纖維混凝土增強、增韌性能的影響；運用斷裂cmod韌度法、 《鋼纖維混凝土試驗方法標準》 cecs13 : 89推薦的彎曲韌性指數評價方法和美國astmc1018 - 89標準推薦的韌度設計值分析本文中的試驗結果。分享友人