概述:為何混凝土攪拌車(chē)的罐行駛中總是轉(zhuǎn),盡管常常見(jiàn)到,但很多人的想法都不太一樣,也是有很多人感覺(jué)原理非常簡(jiǎn)單?;炷翑嚢柢?chē)料機(jī)剛出去的混
為何混凝土攪拌車(chē)的罐行駛中總是轉(zhuǎn),盡管常常見(jiàn)到,但很多人的想法都不太一樣,也是有很多人感覺(jué)原理非常簡(jiǎn)單。混凝土攪拌車(chē)料機(jī)剛出去的混凝土是初料,只不過(guò)在配料后完成比較簡(jiǎn)單的拌和,為了更好地確?;炷恋木|(zhì)性,須要在混凝土攪拌車(chē)?yán)锿瓿啥伟韬汀?
Why does the tank of concrete mixer always turn when driving? Although we often see it, many people have different ideas, and many people feel that the principle is very simple. Concrete mixer just out of the concrete mixer is the initial material, but after mixing, it is relatively simple to complete the mixing. In order to better ensure the homogeneity of concrete, it is necessary to complete the secondary mixing in the concrete mixer.
通常攪拌車(chē)須要確保每分十-三十轉(zhuǎn)的速度,夏天很有可能更低,只須要確?;炷敛划a(chǎn)生離析和初凝就可以,過(guò)于頻繁的拌和反倒會(huì)導(dǎo)致混凝土中的水份過(guò)于揮發(fā)導(dǎo)致出料和易性差,影響到混凝土構(gòu)件澆筑產(chǎn)品質(zhì)量,反映在蜂窩表面漏筋等產(chǎn)品質(zhì)量瑕疵上。
Generally, the mixer 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 too much evaporation of water in the concrete, resulting in poor discharge and workability, which will affect the quality of concrete pouring products, which is reflected in the quality defects of honeycomb surface reinforcement leakage and other products.
混凝土攪拌車(chē)物流運(yùn)輸中途的二次拌和應(yīng)屬深加工,可是并不是比較簡(jiǎn)單的轉(zhuǎn)動(dòng),罐體轉(zhuǎn)動(dòng)次數(shù)對(duì)混凝土的均質(zhì)性尤其關(guān)重要,6~8轉(zhuǎn)/分鐘為宜;過(guò)慢,混凝土內(nèi)部粗骨料容易下沉,太快,對(duì)駕駛員的有一定的影響到,而且也會(huì)增加混凝土水份的流逝,坍落度加大,影響到卸料;6~8轉(zhuǎn)/分鐘時(shí),混凝土的初凝時(shí)間通常在3~6個(gè)小時(shí)。短暫的堵車(chē)對(duì)混凝土的影響到微乎其微,如果堵車(chē)時(shí)間過(guò)長(zhǎng),混凝土的罐體轉(zhuǎn)動(dòng)次數(shù)要適當(dāng)加快1~2圈,并要時(shí)刻注意罐體轉(zhuǎn)動(dòng)是否異常,適當(dāng)?shù)臅r(shí)候可以加水來(lái)保持混凝土的和易性,避免粘罐和悶罐。
The secondary mixing of concrete mixer truck in the middle of logistics transportation should be deep processing, but it is not a simple rotation. The rotation times of the tank body are particularly important for the homogeneity of concrete, 6 ~ 8 rpm is appropriate; if it is too slow, the coarse aggregate inside the concrete is easy to sink, too fast, which has a certain impact on the safety of the driver, and it will also increase the water loss and slump of the concrete 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.
在混凝土攪拌車(chē)物流運(yùn)輸中途充分拌和還可以縮短混凝土初凝時(shí)間、提高混凝土的物理性能。
It can also shorten the initial setting time of concrete and improve the physical properties of concrete.
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