行业资讯
水稳砼的养生是怎么个情况？
来源：/ 日期：2023-01-28
济南水稳砼既是保证水泥稳定碎石（砂砾）强度的需要，又是减少和避免干缩裂缝的措施。因此，每一段底基层碾压完成并经压实度检测合格后，应立即开始养生，养生宜采用不透水薄膜、湿砂、草袋、棉毯覆盖并洒水保湿养生。
Jinan water stabilized concrete is not only the need to ensure the strength of cement stabilized crushed stone (gravel), but also the measure to reduce and avoid dry shrinkage cracks. Therefore, after each section of subbase is rolled and passes the compactness test, the curing should be started immediately. The curing should be covered with impermeable film, wet sand, straw bag, cotton blanket, and watered for moisturizing.
基层完成后要及时交给路面施工单位，进行沥青乳液养生，避免基层长期暴晒。养生期不宜少于7天，并应封闭交通，除洒水车辆外，严禁其它车辆通行。基层过冬时，应采取覆盖保温措施，以防止基层开裂或表面受损可采取先铺塑料薄膜后覆盖粘土的措施，减少和避免因温差过大时产生温缩裂缝。
After the base course is completed, it shall be timely delivered to the pavement construction unit for asphalt lotion curing to avoid long-term exposure of the base course. The curing period should not be less than 7 days, and the traffic should be closed. Except for the watering vehicles, other vehicles are not allowed to pass. During the winter of the base course, the thermal insulation measures shall be taken to prevent the base course from cracking or surface damage. The measures of first laying plastic film and then covering clay can be taken to reduce and avoid temperature shrinkage cracks caused by excessive temperature difference.
水稳砼摊铺后，当水稳砼的含水量等于或略大于佳含水量时，应及时根据试验段确定的碾压工艺，用轻型压路机并配合20T以上压路机在结构层全宽内进行碾压。碾压段长度根据试验段确定的长度及气温情况确定，气温高时，水分蒸发快，缩短碾压段长度，反之，可适当延长碾压段长度，以40-50米为宜，过短则易造成平整度较差。
After paving the water stabilized concrete, when the water content of the water stabilized concrete is equal to or slightly greater than the optimum water content, the light roller shall be used in time according to the rolling process determined in the test section, and the roller above 20T shall be used for rolling within the full width of the structural layer. The length of the rolling section is determined according to the length determined by the test section and the temperature. When the temperature is high, the water evaporates quickly and the length of the rolling section is shortened. On the contrary, the length of the rolling section can be appropriately extended, preferably 40-50 meters. If it is too short, it is easy to cause poor flatness.
碾压方式初压一般采用胶轮压路机或钢轮压路机静压1-2遍，复压采用振动压路机弱振强度2-4遍，终压采用钢轮压路机或胶轮压路机静压1-2遍，碾压速度初、终压宜为1.5-1.7Km/h，复压宜为2.0-2.5Km/h，直线和不设超高的平曲线段，由两侧路肩向路中心碾压，设超高的平曲线段，由内侧路肩向外路肩进行碾压。
Rolling method: the initial rolling shall be carried out by rubber wheel roller or steel wheel roller for 1-2 times, the re-rolling shall be carried out by vibratory roller with weak vibration strength for 2-4 times, the final rolling shall be carried out by steel wheel roller or rubber wheel roller for 1-2 times, the initial and final rolling speed shall be 1.5-1.7Km/h, the re-rolling speed shall be 2.0-2.5km/h, the straight line and the flat curve section without superelevation shall be rolled from the shoulders on both sides to the road center, and the flat curve section with superelevation shall be set, Rolling shall be carried out from the inner shoulder to the outer shoulder.
碾压时，轮迹应重叠1/2轮宽。相邻两段的接头处，应错成横向45°的阶梯状碾压。严禁压路机在已完成或正在碾压的路段上“调头”和急刹车。自拌和碾压结束原则控制在2h以内。您对该产品还有什么问题或者需求都能随时来我们网站做咨询！
When rolling, the wheel track shall overlap 1/2 wheel width. The joints of the two adjacent sections shall be staggered into a 45 ° transverse stepped rolling. It is strictly prohibited for the roller to "turn around" and brake sharply on the road section that has been completed or is being rolled. From mixing to rolling, it shall be controlled within 2h in principle. If you have any questions or needs about this product, please come to our website at any time Consulting!
公司地址：济南市商河县贾庄镇民营经济创业园
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