煤凝結值 的英文怎麼說
中文拼音 [méiníngjiēzhí]
煤凝結值
英文
agglomerating value of coal-
The expansion agents can only make up the shrinkage to some extent, and the compensation effects would be reduced when the retardener and fly - ash are used. the expansion agents are not panaceas to avoid the shrinkage cracking as expansion can also reduce the concrete soundness. under bad curing condition, the polypropylene fibrillated film fiber can improve concrete ' s anti - crarking property, while the nominal steels have very unobvious effects. to reduce the concrete shrinkage thus avoid the cracking, the former factors must all be taken into account in concrete proportion design to develop sound concrete
研究結果表明，水泥的品種和用量是影響混凝土收縮值的主要因素之一，當混凝土中水泥用量超過470kg / m ~ 3時，混凝土的收縮值超過400 10 ~ （ - 6 ） ，在約束狀態下存在高開裂風險；採用細砂使混凝土單位用水量顯著提高，收縮值也大幅增加；優質粉煤灰總體上能抑制混凝土的收縮，以超量方式摻入其抑制作用更加明顯，但粉煤灰混凝土早期的粘聚性較差，應注意養護，以免失水產生龜裂；早強減水劑和緩凝減水劑都會使混凝土收縮值增加；膨脹劑只能補償混凝土部分收縮，同時受緩凝劑和粉煤灰的抑制，而且膨脹使混凝土的體積安定性增加了不確定因素，膨脹劑不是解決混凝土收縮裂縫的良方。The results indicated that in the precondition of eligible durability, 11 % of fa content and 7 % of stone powder content had the composition effects, which made concretes have best workability and strength, and restrain the shrinkage to a degree
結果表明，在耐久性滿足要求的前提下， 11 %摻量的粉煤灰與7 %含量的石粉產生了良好的復合疊加效應，使混凝土獲得了最佳和易性和強度值，且對干縮起到了一定的抑制作用。Combined with the experimental values of eleven sgrc frames, the results calculated by computer program of this paper have some errors, so this paper analysis some relative reasons which can cause error. the proper ascertainment of the value of stiffness reduction factor of the components of sgrc frames is discussed. by contrasting push - over method with some other nonlinear analytical methods, this paper indicates this method in this paper is a simple and convenient method, and this method is practicable and applicable in future engineering
通過比較這11榀煤矸石混凝土框架由本文方法得到的計算值與其試驗值，總結了本文方法產生誤差的一些相關原因，討論了煤矸石混凝土框架剛度折減系數的取值問題，對比其它非線性分析方法，表明了本文方法的簡便性和準確性，進而預測了本文所使用方法在未來工程實際中的可用性和適用性。
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