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沥青路面施工规范缺陷以及其他影响
来源：/ 日期：2022-11-04
为了能够更好地保证沥青路面在高温季节行车荷载反复作用下不致产生诸如波浪、推移、车辙、拥包等病害，沥青路面应具有良好的高温稳定性。那么您知道沥青路面施工规范缺陷以及其他影响是值得哪些内容吗？下面济南沥青料厂家爱为您简单讲讲。
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、沥青路面施工规范的缺陷
1. Defects of asphalt pavement construction specifications
表现在沥青油石比的不准确，象油石比设计主要由室内马歇尔稳定度控制，如满足流值、稳定度、空隙率三大主要指标后，确定油石比，缺乏象日本、美国增加的动稳定度指标、确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、透层油、粘层油对油石比的影响
2. Influence of prime coat oil and tack coat oil on oil stone ratio
为了保证层与层之间具有良好的粘结力，往往采用洒透层油和粘层油的设计方案，由于这些粘层油和透层油对未来油石比的影响往往被人忽视，因此，很容易导致油石比偏大出现泛油现象，下面我们不妨计算一下：
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:
（1）假定粘层油为乳化沥青，设计为O.8kg/m2，沥青加乳化剂和水的比例为50:50，沥青砼表层4cm，密度按2.42g/cm3，由于粘层油的洒布，每增加沥青量0.4kg,而每沥青砼总重量为：
(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．油石比增加量为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）规范要求实际沥青用量只能在佳沥青用量±0.3％之内，可见实际油石比已经超过了规定值。
(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，由于路面基层不可能十分平整，有坑洼现象，而沥青粘层油，则为流动的液体，因此，往往在低洼处粘层油过量集中，这也是导致局部路面泛油严重拥包的主要原因之一。
(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.
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 , learn more about it!
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