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瀝青混凝土在拌和工作的時(shí)候注意事項(xiàng)

來(lái)源:http://guixin.net.cn/ 日期:2023-01-11
建筑工程的瀝青施工,瀝青拌合設(shè)備起到舉足輕重的作用,設(shè)備生產(chǎn)能力與管理的正常與否以及在瀝青拌合工作的時(shí)候注意事項(xiàng)往往對(duì)工程的施工成效具有決定性的影響。那么下面濟(jì)南瀝青砼廠家為您講講瀝青混凝土在拌和工作的時(shí)候注意事項(xiàng)。
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,為了預(yù)熱殼體,要用熱混合料預(yù)拌2~3次,使機(jī)體溫度和混合料溫度一致后,正式生產(chǎn)。拌合溫度采用雙控,設(shè)備溫控系統(tǒng)要和手持紅外溫度計(jì)的溫度相互驗(yàn)證。發(fā)料單上既要有發(fā)料時(shí)間,還要有發(fā)料溫度。
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.
在拌和過程中要經(jīng)常檢查計(jì)量裝置的準(zhǔn)確性,冷料和熱料都要按確定的配合比供料,檢查成品混合料的出料溫度達(dá)到規(guī)定的要求。拌和過程盡量保持連續(xù)性,減少停機(jī)、開機(jī)次數(shù),因?yàn)榘韬统跗诓牧辖M成不易穩(wěn)定,容易引起混合料配比失調(diào)。試驗(yàn)人員每天按批次檢查碎石和瀝青混合料,保證生產(chǎn)質(zhì)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.
濟(jì)南瀝青砼
混合料加熱采用重油加熱。在生產(chǎn)前,需對(duì)重油管道加熱,防止堵塞。點(diǎn)火后,當(dāng)烘干筒達(dá)到一定溫度后才能起動(dòng)冷料輸送機(jī)和配料給料裝置,并保持供料均勻。為了增加產(chǎn)量,減少燃料消耗,把石料全部裝入彩鋼搭建的石料棚,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.
做好拌和時(shí)間的確定工作。上面層混合料要比下面層混合料細(xì)。對(duì)于拌和的均勻性要求拌和時(shí)間越長(zhǎng)越好,但拌和時(shí)間過長(zhǎng)會(huì)造成瀝青的老化,應(yīng)經(jīng)試驗(yàn)確定。對(duì)不同混合料的組成,拌和時(shí)間也不同,根據(jù)實(shí)踐,細(xì)料及石粉較多的混合料拌和時(shí)間要相對(duì)延長(zhǎng),瀝青含量高的混合料拌和時(shí)間可相對(duì)縮短。
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.
檢驗(yàn)成品料,如出現(xiàn)花白料、結(jié)團(tuán)成塊或嚴(yán)重的粗細(xì)料分離現(xiàn)象,應(yīng)立即停止施工,及時(shí)對(duì)配料及拌和作業(yè)進(jìn)行調(diào)整,如提高集料加熱溫度或增加拌和時(shí)間、或減少礦粉用量等等。施工現(xiàn)場(chǎng)記錄每車的攤鋪位置樁號(hào)。如攤鋪后有缺陷,及時(shí)通知試驗(yàn)人員和瀝青混合料生產(chǎn)人員。共同找問題,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.
既要注重內(nèi)部控制,從材料、設(shè)備、拌合、運(yùn)輸、試驗(yàn)、攤鋪、碾壓著手,也要注重外部控制,從天氣、供水、供電、供應(yīng)商生產(chǎn)計(jì)劃、節(jié)假日外部環(huán)境等著手。任何一環(huán)的變化,都可能影響施工計(jì)劃。更多相關(guān)內(nèi)容就來(lái)我們網(wǎng)站http://guixin.net.cn咨詢吧!
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 http://guixin.net.cn Ask!
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