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混凝土攪拌罐車的罐行駛中總是轉動是怎麽回事?

來源:http://www.nordic-bebee.com 日期:2020-12-29 發布人:zhongke
為何混凝土攪拌罐車的罐行駛中總是轉,盡管常常見到,但很多人的想法都不太一樣,也是有很多人感覺原理非常簡單。混凝土攪拌站料機剛出去的混凝土是初料,隻不過在配料後完成比較簡單的拌和,為了更好地確保混凝土的均質性,須要在混凝土攪拌罐車裏完成第二次拌和。
Although we often see why the concrete mixer always turns when driving, many people have different ideas, and many people feel that the principle is very simple. The concrete just out of the concrete mixing plant is the initial material, but the simple mixing is completed after batching. In order to better ensure the homogeneity of concrete, the second mixing must be completed in the concrete mixing tank truck.
通常攪拌罐車須要確保每分十-三十轉的速度,夏天很有可能更低,隻須要確保混凝土不產生離析和初凝就可以,過於頻繁的拌和反倒會導致混凝土中的水份過於揮發導致出料和易性差,影響到混凝土構件澆築產品質量,反映在蜂窩表麵漏筋等產品質量瑕疵上。
Generally, the mixing tank truck needs to ensure the speed of 10-30 revolutions per minute, which is likely to be lower in summer. It only needs to ensure that the concrete does not produce segregation and initial setting. On the contrary, too frequent mixing will lead to excessive evaporation of water in the concrete, resulting in poor workability, affecting the quality of concrete pouring products, which is reflected in the product quality defects such as honeycomb surface reinforcement leakage.
中科攪拌機
混凝土攪拌罐車物流運輸中途的第二次拌和應屬深加工,可是並不是比較簡單的轉動,罐體轉動次數對混凝土的均質性尤其至關重要,6~8轉/分鍾為宜;過慢,混凝土內部粗骨料容易下沉,太快,對駕駛員的安全有一定的影響到,而且也會增加混凝土水份的流逝,坍落度增大,影響到卸料;6~8轉/分鍾時,混凝土的初凝時間通常在3~6個小時。短暫的堵車對混凝土的影響到微乎其微,如果堵車時間過長,混凝土的罐體轉動次數要適當加快1~2圈,並要時刻注意罐體轉動是否異常,適當的時候可以加水來保持混凝土的和易性,避免粘罐和悶罐。
However, it is not easy for the driver to rotate the coarse aggregate too fast, and it is not easy for the concrete to sink in the second 8-6 minutes The initial setting time of concrete is usually 3-6 hours at 6-8 rpm. The short-term traffic jam has little effect on the concrete. If the traffic jam is too long, the rotation times of the concrete tank should be appropriately accelerated by 1 ~ 2 circles, and attention should be paid to whether the rotation of the tank is abnormal at all times. When appropriate, water can be added to maintain the workability of the concrete to avoid sticking and stuffy tank.
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