行业资讯
沥青混凝土在拌和工作的时候注意事项
来源：/ 日期：2023-01-11
建筑工程的沥青施工，沥青拌合设备起到举足轻重的作用，设备生产能力与管理的正常与否以及在沥青拌合工作的时候注意事项往往对工程的施工成效具有决定性的影响。那么下面济南沥青砼厂家为您讲讲沥青混凝土在拌和工作的时候注意事项。
Asphalt mixing equipment plays an important role in asphalt construction of construction projects. Whether the equipment production capacity and management are normal or not and the precautions during asphalt mixing work often have a decisive impact on the construction results of the project. Next, Jinan asphalt concrete manufacturer will tell you the precautions when mixing asphalt concrete.
在正式拌和成品前，为了预热壳体，要用热混合料预拌2～3次，使机体温度和混合料温度一致后，正式生产。拌合温度采用双控，设备温控系统要和手持红外温度计的温度相互验证。发料单上既要有发料时间，还要有发料温度。
Before formally mixing the finished products, in order to preheat the shell, the hot mixture shall be pre-mixed for 2 to 3 times, so that the temperature of the body and the temperature of the mixture are consistent, and then the production can be started. The mixing temperature adopts double control, and the temperature control system of the equipment shall be mutually verified with the temperature of the hand-held infrared thermometer. The material issuing sheet should have both the material issuing time and the material issuing temperature.
在拌和过程中要经常检查计量装置的准确性，冷料和热料都要按确定的配合比供料，检查成品混合料的出料温度达到规定的要求。拌和过程尽量保持连续性，减少停机、开机次数，因为拌和初期材料组成不易稳定，容易引起混合料配比失调。试验人员每天按批次检查碎石和沥青混合料，保证生产质量。
During the mixing process, the accuracy of the metering device should be checked frequently. Both cold and hot materials should be supplied according to the determined mix ratio. Check that the discharge temperature of the finished mixture meets the specified requirements. The mixing process shall be continuous as much as possible, and the number of stops and starts shall be reduced, because the composition of materials at the initial stage of mixing is not easy to be stable, which is easy to cause the imbalance of mixture ratio. The tester shall check the crushed stone and asphalt mixture by batch every day to ensure the production quality.
混合料加热采用重油加热。在生产前，需对重油管道加热，防止堵塞。点火后，当烘干筒达到一定温度后才能起动冷料输送机和配料给料装置，并保持供料均匀。为了增加产量，减少燃料消耗，把石料全部装入彩钢搭建的石料棚，防止淋雨。
The mixture is heated with heavy oil. Before production, the heavy oil pipeline needs to be heated to prevent blocking. After ignition, when the drying drum reaches a certain temperature, the cold material conveyor and the batching feeding device can be started, and the feeding uniformity can be maintained. In order to increase production and reduce fuel consumption, all stones are put into the stone shed built by color steel to prevent rain.
做好拌和时间的确定工作。上面层混合料要比下面层混合料细。对于拌和的均匀性要求拌和时间越长越好，但拌和时间过长会造成沥青的老化，应经试验确定。对不同混合料的组成，拌和时间也不同，根据实践，细料及石粉较多的混合料拌和时间要相对延长，沥青含量高的混合料拌和时间可相对缩短。
Determine the mixing time. The upper layer mixture is finer than the lower layer mixture. For the uniformity of mixing, the longer the mixing time is, the better. However, the longer the mixing time is, the aging of asphalt will be caused, which should be determined by test. For the composition of different mixtures, the mixing time is also different. According to practice, the mixing time of the mixture with more fines and stone powder is relatively longer, and the mixing time of the mixture with high asphalt content can be relatively shorter.
检验成品料，如出现花白料、结团成块或严重的粗细料分离现象，应立即停止施工，及时对配料及拌和作业进行调整，如提高集料加热温度或增加拌和时间、或减少矿粉用量等等。施工现场记录每车的摊铺位置桩号。如摊铺后有缺陷，及时通知试验人员和沥青混合料生产人员。共同找问题，制定方案。
When inspecting the finished materials, if there are gray materials, agglomerations or serious separation of coarse and fine materials, the construction shall be stopped immediately, and the batching and mixing operation shall be adjusted in time, such as increasing the heating temperature of the aggregate, increasing the mixing time, or reducing the amount of mineral powder, etc. Record the paving position stake number of each vehicle at the construction site. If there are defects after paving, notify the test personnel and asphalt mixture production personnel in time. Work together to find problems and formulate plans.
既要注重内部控制，从材料、设备、拌合、运输、试验、摊铺、碾压着手，也要注重外部控制，从天气、供水、供电、供应商生产计划、节假日外部环境等着手。任何一环的变化，都可能影响施工计划。更多相关内容就来我们网站咨询吧！
We should not only focus on internal control, starting from materials, equipment, mixing, transportation, testing, paving and rolling, but also on external control, starting from weather, water supply, power supply, supplier production plan, external environment of holidays, etc. Changes in any link may affect the construction plan. Come to our website for more relevant content Ask!
公司地址：济南市商河县贾庄镇民营经济创业园
公司名称:2023澳门正版资料免费 
备案号：