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提高瀝青混合料高溫穩(wěn)定性的三個(gè)措施

來(lái)源：http://www.apdetong.cn/ 日期：2023-05-15

瀝青路面由于使用了粘結(jié)力較強(qiáng)的瀝青材料，使礦料之間的粘結(jié)力大大加強(qiáng)，從而提高了礦料的強(qiáng)度和穩(wěn)定性，使路面使用質(zhì)量大為提高,延長(zhǎng)了路面使用壽命。下面濟(jì)南瀝青生產(chǎn)廠家來(lái)講講提高瀝青混合料高溫穩(wěn)定性的三個(gè)措施。

Due to the use of asphalt materials with strong adhesion, the adhesion between mineral materials is greatly strengthened, thereby improving the strength and stability of mineral materials, greatly improving the quality of pavement use, and extending the service life of the pavement. Below, Jinan asphalt manufacturers will discuss three measures to improve the high-temperature stability of asphalt mixtures.

瀝青路面的高溫穩(wěn)定性瀝青路面的重要特點(diǎn)之一是其強(qiáng)度和抵抗變形的能力隨著溫度的升高而顯著降低，能相差幾倍甚至幾十倍。在夏季高溫時(shí)，在陽(yáng)光下瀝青表面的高溫度可達(dá)60攝氏度至70攝氏度，這就造成瀝青面層材料在高溫下的抗壓強(qiáng)度和抗彎強(qiáng)度不足。

One of the important characteristics of high-temperature stability of asphalt pavement is that its strength and resistance to deformation significantly decrease with the increase of temperature, with a difference of several times or even tens of times. During high temperatures in summer, the high temperature of the asphalt surface under sunlight can reach 60 to 70 degrees Celsius, which results in insufficient compressive and flexural strength of the asphalt surface material at high temperatures.
濟(jì)南瀝青生產(chǎn)廠家

為提高瀝青混合料的高溫穩(wěn)定性,主要采取三方面的措施:

To improve the high-temperature stability of asphalt mixtures, three main measures are taken:

一是提高材料的摩阻力，具體措施是在混合料中增加粗骨料的含量，保持良好的級(jí)配以形成穩(wěn)定而密實(shí)的骨架結(jié)構(gòu);選用紋理粗糙和棱角多的骨料，也能提高內(nèi)摩阻力。

One is to increase the frictional resistance of the material, which is achieved by increasing the content of coarse aggregate in the mixture and maintaining a good grading to form a stable and dense skeleton structure; Choosing aggregates with rough texture and multiple edges can also improve internal friction resistance.

二是適當(dāng)提高瀝青稠度。

The second is to appropriately increase the viscosity of asphalt.

三是提高瀝青與礦粉的粘結(jié)力，如在瀝青混合料中加入較高活性的石灰石礦料。

The third is to improve the adhesion between asphalt and mineral powder, such as adding highly active limestone mineral material to the asphalt mixture.

另外適當(dāng)控制瀝青用量等也能取得較好的效果。

In addition, appropriate control of asphalt dosage can also achieve good results.

如果已出現(xiàn)泛油、油包時(shí)處理方法為:

If oil spills or oil pockets have occurred, the treatment method is:

根據(jù)泛油嚴(yán)重程度撒鋪不同粒徑和數(shù)量的礦料，貫徹先粗后細(xì)、少撒、勤撤、撒勻的原則。

Spread mineral materials with different particle sizes and quantities based on the severity of oil spillage, and implement the principle of first coarse and then fine, less scattering, frequent removal, and even scattering.

對(duì)油包則采用加熱器燙軟或趁氣溫較高時(shí)鏟除過(guò)高部分，撒少量的石屑或粗砂燙平，如油包過(guò)多則應(yīng)全部鏟除重鋪面層。

For the oil package, use a heater to soften it or remove the excessively high part when the temperature is high. Sprinkle a small amount of stone chips or coarse sand to flatten it. If there are too many oil packages, completely remove the heavy paving layer.

提高瀝青混合料高溫穩(wěn)定性的三個(gè)措施相關(guān)內(nèi)容就講解到這里了，希望能夠給您好的幫助，更多事項(xiàng)就來(lái)我們網(wǎng)站http://www.apdetong.cn咨詢(xún)吧！

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