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水泥稳定碎石基层冬季施工采取三种措施
来源：/ 日期：2022-12-21
对于济南水泥稳定碎石基层冬季施工采取了一下三种措施：一是覆盖保温；二是添加早强剂，并及时碾压；三是混合料配合比中增加水泥用量。下面厂家为您讲解。
For the winter construction of Jinan cement stabilized macadam base, the following three measures have been taken: first, covering and thermal insulation; Second, add early strength agent and roll in time; Third, increase the amount of cement in the mix proportion of the mixture. The manufacturer will explain it to you.
1、覆盖保温
1. Covering insulation
水泥稳定碎石铺压后在其表面及时覆盖黑色塑料布，在塑料布上覆盖草苫，以达到保温效果
After the cement stabilized macadam is paved and compacted, its surface shall be covered with black plastic cloth in time, and the plastic cloth shall be covered with straw to achieve thermal insulation effect
2、添加早强剂
2. Add early strength agent
对于济南水泥稳定碎石，与水泥混凝土添加早强剂的道理一样。当水泥稳定碎石拌合时，水泥水化放出热量，使混合料温度升高，当运抵现场进行摊铺碾压过程中，因为大气温度低，混合料的温度下降很快，水泥稳定碎石强度形成需要一定时间，在这一定时间内如何保证水泥稳定碎石形成一定强度。
For Jinan cement stabilized macadam, it is the same as adding early strength agent to cement concrete. When the cement stabilized macadam is mixed, the cement hydration will release heat, which will increase the temperature of the mixture. When the mixture is transported to the site for paving and rolling, the temperature of the mixture will drop quickly due to the low temperature of the atmosphere. The strength of the cement stabilized macadam will take a certain time to form. How to ensure that the cement stabilized macadam will form a certain strength within this time.
除了覆盖保温养生外，我们应该使水泥稳定碎石的强度尽快形成，充分利用水泥水化产生的热量。所以在混合料中加入早强剂，施工组紧密，尽快完成摊铺、碾压，使混合料尽早形成强度。
In addition to covering and heat preservation, we should make the strength of cement stabilized macadam form as soon as possible, and make full use of the heat generated by cement hydration. Therefore, early strength agent shall be added to the mixture, the construction team shall be close, paving and rolling shall be completed as soon as possible, so that the mixture can form strength as soon as possible.
3、增加水泥用量
3. Increase cement consumption
水泥稳定碎石施工及养护过程中，温度高高低低交替作用，晚上温度低，白天温度高，这就势必造成水泥稳定碎石强度形成中受到损失。所以采取比平时水泥用量大1.0～1.5%的方法来弥补这些强度损失。
During the construction and maintenance of cement stabilized macadam, the temperature is high, high and low alternately. The temperature is low at night and high during the day, which will inevitably cause loss in the strength formation of cement stabilized macadam. Therefore, the method of using 1.0~1.5% more cement than usual is adopted to compensate for these strength losses.
另一方面在水泥反应过程中要放出一些热量，水泥含量越高，放出的热量也越多，降低水泥标号，增加水泥用量，增加水泥水化的热量，以利于水泥稳定碎石冬季施工的温度提高。
On the other hand, some heat shall be released in the cement reaction process. The higher the cement content is, the more heat will be released. Reduce the cement grade, increase the cement consumption, and increase the heat of cement hydration, so as to improve the temperature of cement stabilized macadam construction in winter.
因为在攻击施工中，天气气温低，混合料失水慢，强度形成慢，所以增加水泥用量不会造成水泥稳定碎石强度形成过程中的收缩开裂。
During the attack construction, the weather temperature is low, the mixture loses water slowly, and the strength is formed slowly. Therefore, increasing the amount of cement will not cause shrinkage cracking during the strength formation of cement stabilized macadam.
The above is about "three measures for winter construction of cement stabilized macadam base". I hope to give you some help. Of course, if you have any questions or needs, you can contact us at any time ！
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