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pulverulent adj.1.粉的,灰塵的,滿是粉末[灰塵]的。2.(巖石...

pulvillus

The concrete with the a 28 days compressive strength of c60 can be produced by using suitably pulverulent coal - fired ash , the higher the quantity of pulverlent coal - fired ash mixed in concrete with 10 % - 20 % is , the higher the strength of concrete is . then , we carry out the studies on the technics properties that reflect the comprehensive properties of concrete . we find that the separating and excreting water of the concrete can be avoided efficiently when the pulverulent coal - fired ash and superplasticizer are used suitably , the higher the quantity ration of coal - fired ash and super plasticizer are , the higher the caving degree of the concrete is 在上述研究基礎上,對摻細化粉煤灰后混凝土的強度變化規律進行了分析研究,在適當配合比及高效減水劑的作用下,摻一定數量的磨細粉煤灰,在28天齡期可以配制出抗壓強度高于c60的粉煤狄高強混凝土;當磨細粉煤灰以10 - - 20不同的摻量分別摻入粉煤灰中時,粉煤灰高強混凝土的強度隨摻量的增大,各齡期強度均逐漸降低;在摻入8硅灰+ 10粉煤灰可使高強混凝土的各齡期強度都有很大增加,當單摻8粉煤灰時,混凝土的后期強度增加較快;粉煤灰混凝土必須加入高效減水劑遼十l彬技術人學碩十學位論文后j ”能達到高強的目的。

The results indicate that the all properties of pulverulent coal - fired ash are obviously higher than that if original coal - fired ash . based on the above studies , the studies on the strength changing mode of concrete with pulverulent are carried out . arrange of results are attained 首先對比研究了磨細灰與原狀灰在高強混凝土中的作用,結果表明,磨細粉煤灰的各種性能均好于原狀粉煤灰,這為下一步性能研究奠定了基礎。

All results show , the performance of the high - strength concrete with mixture of pulverulent coal - fired ash is higher than the standard high - strength concrete , and is increased significantly 綜合研究結果表明,摻入磨細粉煤灰后的高強混凝土的各種性能均高于基準高強混凝土,得到了良好的改善。

Rolling stock . rail trucks having pneumatic emptying , for the transport of loose pulverulent products , with emptying under a maximum operating pressure of 2 , 67 bar - dome and closing device 鐵路機車車輛.在最大壓力為2 . 67bar的散裝粉狀產品運輸用氣動排空鐵路貨車.圓蓋和封閉裝置

Transport and handling . rail cars and road tankers . permanent stations for the loading and unloading of pulverulent products 運輸與裝卸.軌道車和道路罐車.粉狀產品的裝載和卸載用永久車站

The results show , the concrete produced by using pulverulent coal - fired ash has very nice durability 結果表明,摻細化粉煤灰高強混凝土表現出優良的耐久性。