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瀝青路面施工規(guī)范缺陷以及其他影響

來(lái)源：http://ywsun168.com/ 日期：2022-11-04

為了能夠更好地保證瀝青路面在高溫季節(jié)行車(chē)荷載反復(fù)作用下不致產(chǎn)生諸如波浪、推移、車(chē)轍、擁包等病害，瀝青路面應(yīng)具有良好的高溫穩(wěn)定性。那么您知道瀝青路面施工規(guī)范缺陷以及其他影響是值得哪些內(nèi)容嗎？下面濟(jì)南瀝青料廠家愛(ài)為您簡(jiǎn)單講講。

In order to better ensure that the asphalt pavement will not produce such diseases as waves, pushing, rutting, and bumps under the repeated action of driving load in the high temperature season, the asphalt pavement should have good high temperature stability. Do you know what the defects of asphalt pavement construction specifications and other influences are worth? Now, Jinan Asphalt Manufacturer would like to give you a brief introduction.

1、瀝青路面施工規(guī)范的缺陷

1. Defects of asphalt pavement construction specifications

表現(xiàn)在瀝青油石比的不準(zhǔn)確，象油石比設(shè)計(jì)主要由室內(nèi)馬歇爾穩(wěn)定度控制，如滿足流值、穩(wěn)定度、空隙率三大主要指標(biāo)后，確定油石比，缺乏象日本、美國(guó)增加的動(dòng)穩(wěn)定度指標(biāo)、確定油石比和集料配合比。

It is shown in the inaccuracy of asphalt aggregate ratio. For example, the asphalt aggregate ratio design is mainly controlled by the indoor Marshall stability. For example, after meeting the three main indicators of flow value, stability and porosity, the asphalt aggregate ratio is determined. However, the dynamic stability indicators increased in Japan and the United States are lacking, and the asphalt aggregate ratio and aggregate mix ratio are determined.

2、透層油、粘層油對(duì)油石比的影響

2. Influence of prime coat oil and tack coat oil on oil stone ratio

為了保證層與層之間具有良好的粘結(jié)力，往往采用灑透層油和粘層油的設(shè)計(jì)方案，由于這些粘層油和透層油對(duì)未來(lái)油石比的影響往往被人忽視，因此，很容易導(dǎo)致油石比偏大出現(xiàn)泛油現(xiàn)象，下面我們不妨計(jì)算一下：

In order to ensure good adhesion between layers, the design scheme of spraying primer oil and tack coat oil is often adopted. Because the influence of these tack coat oil and primer oil on the future asphalt stone ratio is often ignored, it is easy to cause the asphalt stone ratio to be too large, and the phenomenon of oil bleeding occurs. Let's calculate it as follows:
濟(jì)南瀝青料

（1）假定粘層油為乳化瀝青，設(shè)計(jì)為O.8kg/m2，瀝青加乳化劑和水的比例為50:50，瀝青砼表層4cm，密度按2.42g/cm3，由于粘層油的灑布，每平方米增加瀝青量0.4kg,而每平方米瀝青砼總重量為：

(1) Assuming that the tack coat oil is emulsified asphalt, the design is O.8kg/m2, the proportion of asphalt with emulsifier and water is 50:50, the asphalt concrete surface is 4cm, and the density is 2.42g/cm3. Due to the distribution of tack coat oil, the asphalt amount is increased by 0.4kg per square meter, and the total weight of asphalt concrete per square meter is:

100×100×4×2.42g/cm3=96800g．油石比增加量為400÷96800=0.4％

one hundred × one hundred × four × 2.42g/cm3=96800g. The increase of asphalt aggregate ratio is 400 ÷ 96800=0.4%

（2）規(guī)范要求實(shí)際瀝青用量只能在佳瀝青用量±0.3％之內(nèi)，可見(jiàn)實(shí)際油石比已經(jīng)超過(guò)了規(guī)定值。

(2) The specification requires that the actual asphalt dosage can only be within ± 0.3% of the optimal asphalt dosage, which shows that the actual asphalt aggregate ratio has exceeded the specified value.

（3）此外，由于路面基層不可能十分平整，有坑洼現(xiàn)象，而瀝青粘層油，則為流動(dòng)的液體，因此，往往在低洼處粘層油過(guò)量集中，這也是導(dǎo)致局部路面泛油嚴(yán)重?fù)戆闹饕蛑弧?/div>

(3) In addition, since the pavement base course cannot be very flat and has potholes, and the asphalt tack coat oil is a flowing liquid, so the tack coat oil is often excessively concentrated in low-lying areas, which is also one of the main reasons for serious oil spilling on local roads.

瀝青路面的養(yǎng)護(hù)方面要加大管理，嚴(yán)格養(yǎng)護(hù)管理，加強(qiáng)路面保潔，確保各方面的性能良好，并及時(shí)對(duì)裂縫等問(wèn)題進(jìn)行科學(xué)的處理，避免病害的進(jìn)一步擴(kuò)展。關(guān)注我們http://ywsun168.com，了解更多相關(guān)事項(xiàng)！

In terms of asphalt pavement maintenance, management should be strengthened, strict maintenance management should be carried out, and pavement cleaning should be strengthened to ensure good performance in all aspects. Problems such as cracks should be treated scientifically in a timely manner to avoid further expansion of the disease. Follow us http://ywsun168.com , learn more about it!

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