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夏季使用灌浆料注意事项
作者:admin 来源:本站 发布时间:2017-04-22 09:45:26 浏览次数:347
夏季气温较高容易刮大风,空气也较干燥,对灌浆料的施工会造成一定的影响。因此,为了避免这些问题对施工造成影响,夏季使用灌浆料的时候要注意以下几个问题。
High temperature in summer is easy to blow the wind, the air is also dry, the grouting material construction will have a certain impact. Therefore, in order to avoid the impact of these problems on the construction, the use of grouting materials in summer should pay attention to the following issues.

一、需要注意在浇筑时,模板、钢筋、灌浆料基层要洒水湿润、降温,同时还要合理地分段分层,使新老浇注间隔时间缩短。如需要较高坍落度的混凝土灌浆料拌合物,应使用高效减水剂,有些高效减水剂产生的拌合物能维持2个小时。

聚合砂浆

First, the need to pay attention to in the casting, formwork, steel, grouting material to spray the water to the bottom, cooling, but also a reasonable division of layers, so that the new and old pouring interval shortened. Such as the need for higher slump of the concrete grouting mixture, should use high water reducing agent, some of the production of superplasticizer can be maintained for 2 hours.
二、控制输送时间,在运输问题上应尽量缩短外部运输时间,控制好运输距离。在灌浆料到达工地后应立即把料卸下并进行浇筑,避免停留时间过长引起较大的坍落度损失。内部输送采用泵送时,输送管道应覆盖湿布。
Two, control the delivery time, in the transport problem should be as far as possible to shorten the external transport time, control the transport distance. When the grouting material arrives at the construction site, the material should be unloaded and poured imtely, so as to avoid the long slump loss. When the internal delivery is pumped, the conveying pipe should be covered with wet cloth.
三、集料和拌合水应避免阳光直接照射,可洒水使集料降温。拌合水最好采用井水,如用储水槽,应避免阳光直晒。向骨料堆中洒水,降低混凝土灌浆料骨料的温度,应避免灌浆料拌合物的温度超过30℃,必要时可加冰块降低二次灌浆料拌合物的温度。
Three, aggregate and mixing water should avoid direct sunlight, water can make aggregate cooling. The best use of mixing water wells, such as the use of the water storage tank, should avoid direct sunlight. To sprinkle water in the aggregate, reduce the temperature of the aggregate of concrete grouting material, the temperature of the mixture should be avoided, and the temperature of the mixture should be more than 30 DEG C, and if necessary, the ice can be lowered to reduce the temperature of the mixture for the two time.
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