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全自动搅拌车搅拌时间不足会如何?

作者:http://www.zkzsljbc.com 时间:2023-04-14

全自动搅拌车搅拌时间不足会如何呢?实际上,如果全自动搅拌车搅拌时间不足,会导致混凝土失去均匀性,即混凝土中的水泥、沙子、石头等原材料没有充分混合,会导致混凝土强度降低、泌水率增加、空鼓和裂缝等问题。
What happens if the fully automatic mixer truck lacks mixing time? In fact, if the mixing time of the fully automatic mixer truck is insufficient, it will lead to the loss of uniformity of the concrete, that is, the raw materials such as cement, sand, and stones in the concrete are not fully mixed, which can lead to problems such as reduced concrete strength, increased bleeding rate, hollowing, and cracks.
如果混凝土强度不够,可能会影响建筑物的承重能力和性。此外,搅拌时间不足还会影响混凝土的质量,使得不均匀的混凝土无法满足施工要求,影响施工进度和建筑质量。
If the concrete strength is insufficient, it may affect the load-bearing capacity and safety of the building. In addition, insufficient mixing time can also affect the quality of concrete, making uneven concrete unable to meet construction requirements, affecting construction progress and building quality.
因此,需要根据混凝土的配合比、搅拌机型和搅拌速度等因素,合理设定搅拌时间,确保混凝土充分混合,保证施工质量和建筑物的性。
Therefore, it is necessary to set the mixing time reasonably based on factors such as the concrete mix ratio, mixing machine type, and mixing speed, to ensure sufficient mixing of concrete, construction quality, and building safety.
禁止无底线地缩短搅拌时间,建议一单一设定搅拌时间的方法。在国标GB/T14902—2012《预拌混凝土》中规定,混凝土在搅拌机中的搅拌时间,不应少于30s。国标GB50164—2011《混凝土质量控制标准》中规定,混凝土搅拌的短时间为60s,同时规定,双卧轴强制式搅拌机,可在保证均匀的情况下适当缩短搅拌时间。根据上述两个标准,混凝土搅拌时间不应少30s。
It is prohibited to shorten the mixing time without a bottom line. It is recommended to use a single method of setting the mixing time. According to the national standard GB/T14902-2012 "Ready Mixed Concrete", the mixing time of concrete in the mixer should not be less than 30 seconds. According to the national standard GB50164-2011 "Concrete Quality Control Standard", the short mixing time for concrete is 60 seconds. At the same time, it is stipulated that a dual horizontal shaft forced mixer can appropriately shorten the mixing time while ensuring uniformity. According to the above two standards, the concrete mixing time should not be less than 30 seconds.
全自动搅拌车
很多通过不断地减少搅拌时间来降低生产成本,有的搅拌时间仅为15s、20s,操作人员多是年轻人,通过减少搅拌时间,减少操作时间,降低工作强度,增加休息的时间,这是混凝土质量不断劣化的一个原因。有些操作人员根据搅拌电流来推断混凝土状态,完全忽略了不同的混凝土需要的搅拌时间是不一样的,所有混凝土都按一定的搅拌时间考虑,当搅拌电流偏高时,会采取加水措施。有些混凝土需要较长的搅拌时间,当设定搅拌时间较短时,搅拌电流偏高,一旦加水搅拌到电流合适,混凝土强度损失大,将造成工程事故。
Many people reduce production costs by continuously reducing mixing time, some of which only take 15s or 20s. The operators are mostly young people. By reducing mixing time, reducing operation time, reducing work intensity, and increasing rest time, this is one of the reasons for the continuous deterioration of concrete quality. Some operators infer the state of concrete based on the mixing current, completely ignoring that different types of concrete require different mixing times. All concrete is considered based on a certain mixing time, and when the mixing current is too high, water will be added. Some concrete requires a longer mixing time. When the mixing time is set to be short, the mixing current is too high. Once the water is added and the current is appropriate, the concrete strength will be lost greatly, which will cause engineering accidents.
实际生产中,影响搅拌时间的因素很多,强度等级不一样的混凝土,需要的搅拌时间不一样;混凝土稀稠不一样,搅拌时间不一样;同强度等级混凝土,施工部位不一样,搅拌时间不一样;同强度等级混凝土,外加剂不一样,特别是加入粉剂后,搅拌时间不一样;常温混凝土与冬期搅拌时间不一样;石子大小不一样,搅拌时间不一样;石子多少不一样,搅拌时间不一样。
In actual production, there are many factors that affect the mixing time. Concrete with different strength grades requires different mixing times; The thickness of concrete varies, and the mixing time varies; Concrete of the same strength grade has different construction sites and mixing times; For concrete of the same strength grade, the admixtures are different, especially after adding powder, the mixing time is different; The mixing time of normal temperature concrete is different from that of winter; The size of the stones varies, and the mixing time varies; The amount of stones varies, and the mixing time varies.
搅拌时间应在配合比单中设定,一单一设定,并优先执行配合比单中规定的搅拌时间。欢迎您随时来我们网站http://www.zkzsljbc.com咨询更多事项!
The mixing time should be set in the mix proportion sheet, with a single setting and priority given to the mixing time specified in the mix proportion sheet. Welcome to our website anytime http://www.zkzsljbc.com Consult for more matters!
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