凍脹比 的英文怎麼說
中文拼音 [dòngzhàngbǐ]
凍脹比
英文
heave ratio-
Based on the shrinkage analysis of cement - stabilized aggregate mixture, the performance of cement - stabilized aggregate mixtures with expansion agent or fibre. compared with that without admixtures, such as mechanical property. shrinkage, anti - freeze and durability are studied
同時，分別研究了加膨脹劑和纖維水泥穩定碎石力學性能、收縮性能、抗凍性能和耐久性等路面結構性能，並與沒外加劑水泥穩定碎石作比較。The test obsvervation include air temperature, ground temperature, foundation moisture, freeze depth, freeze capicity, freeze residual capicity, groundwater table and shape transform of canal lining, etc. throught systemic observation, analysis of impact about each factor on fundation freeze capicity, evaluate effect on anti freeze of various canal lining, comparison on technology and ecnomic of different method, a kind of main canal lining format is been recommended to engineering practice with siutable to ningxia local feature, fufilling the need of main canal safey i application, economic and practical, that is using polystyrene plate laying under concrete slate and grit taking replace of filling layer and optimizing design
試驗觀測內容包括氣溫、地溫、基土含水量、凍深、凍脹量、凍脹剩餘量、地下水位和砌體外觀變化等項目。通過系統的觀測，分析各因素對基土凍脹量的影響，評價各種襯砌型式的防凍西安理工大學工程碩士專業學位論文脹效果，並進行技術和經濟綜合分析比較，推薦出了適合我區特點、滿足乾渠安全運行、經濟實用、防凍脹效果好的乾渠防滲襯砌型式，即混凝土板下鋪設聚苯乙烯板和砂礫石換填層結構型式，加以優化設計，用於工程實踐。The results of experiments show out : the frost - heave stress of normal concrete with low w / c ratio was more small than the frost - heave stress of normal concrete with high w / c ratio under freezing condition
試驗研究表明:受凍條件下，低水灰比基準混凝土凍脹應力要比高水灰比基準混凝土的凍脹應力小。Meanwile, the frost - heave stress of all concrete with different w / c ratio decreased with the adding of mineral additives, the decreaseing extent of concrete with high w / c ratio is more bigger between them
同時，摻入礦物摻合料的不同水灰比混凝土的凍脹應力都減小，其中高水灰比混凝土減小幅度較大。The vermiculite could well resist heat, cold and fire ; it is antibacterial and capable of absorbing sound, while it can t coexist with acid. it could be burned in 800 - 1000 and changes its color to golden brown or silvery. and physical volume that inflation, equal to after the inflation originally physical volume of 8 - 20 times. from but made that material increase the ventilate air and the bibulous ability
蛭石經過焙燒，體積迅速膨脹，可增大至原體積的8 - 20倍，膨化后的蛭石呈顆粒狀，直徑大約0 . 5 - 0 . 8mm ，脹后的蛭石比重0 . 06 - 0 . 2噸立方米，具有隔熱耐凍抗菌防火吸聲等優異性能，但不耐酸，其介電特性也比較差。In permafrost areas, thaw - settlement problem is the main content for the frozen harmfulness study ; in the seasonally frozen soil areas, frozen expansion problem is considered most in order to prevent and father the frozen harmfulness for the groundwork, the thaw - settlement index is thought little relatively, but it has been investigated from the data of frozen harmfulness, the thaw - settlement behavior still has an active effect on the construction stability in the seasonally frozen soil areas
在多年凍土區，融沉問題是凍害研究的主要內容;在季節凍土地區，為了防治地基凍害問題，考慮最多的往往是凍脹問題，對融沉指標一般考慮的比較少，但是根據調查凍害資料來看，融沉性在季節凍土地區的建築物穩定性方面的應用仍然具有積極的意義。分享友人