【摘要】：采用加速加載試驗(yàn)、凍融循環(huán)試驗(yàn)測(cè)試了導(dǎo)電超薄抗滑磨耗層在凍融、水壓及重復(fù)荷載等因素作用下的導(dǎo)電和抗滑性能的長(zhǎng)期耐久性.結(jié)果表明:導(dǎo)電超薄抗滑磨耗層初始電阻率為4.18×10-3Ω·m,3次凍融循環(huán)后變?yōu)?.15×10-3Ω·m,經(jīng)凍融與100萬(wàn)軸次累積荷載耦合作用和50萬(wàn)軸次浸水加速加載后電阻率分別增大5.0%與2.5%;導(dǎo)電超薄抗滑磨耗層初始摩擦擺值為65~67BPN,經(jīng)凍融與100萬(wàn)軸次累積荷載耦合作用和50萬(wàn)軸次浸水加速加載后摩擦擺值分別衰減10.0%與6.0%,即導(dǎo)電超薄抗滑磨耗層在導(dǎo)電和抗滑性能方面均具有良好的耐久性;在36V供電條件下,導(dǎo)電超薄抗滑磨耗層發(fā)熱功率為427.7 W/m2(電極間距2m),可滿足路面融冰雪需要.
[Abstract]:The long-term durability of conductive ultra-thin anti-slip wear layer under the action of freeze-thaw, water pressure and repeated load was tested by accelerated loading test and freeze-thaw cycle test. The results show that the initial resistivity of the conductive ultra-thin anti-slip wear layer is 4.18 脳 10 ~ 3 惟 m, and becomes 4.15 脳 10 脳 10 ~ 3 惟 m after three cycles of freezing and thawing. The resistivity increases by 5.0% and 2.5% respectively after the coupling action of freeze-thaw and 1 million-axis cumulative load and the accelerated loading of 500000-axis immersion water. The initial friction pendulum value of the conductive ultra-thin anti-sliding wear layer is 65 脳 67 BPN, and the friction pendulum value decreases by 10.0% and 6.0% respectively after the coupled action of freezing-thawing and 1 million-axis cumulative load and the accelerated loading of 500000-axis immersion water. That is, the conductive ultra-thin anti-skid wear layer has good durability in both conductive and anti-skid performance; Under the condition of 36V power supply, the heating power of conductive and ultra-thin anti-skid wear layer is 427.7 W/m2 (2m electrode spacing), which can meet the need of melting snow and ice on the road surface.
【作者單位】： 同濟(jì)大學(xué)道路與交通工程教育部重點(diǎn)實(shí)驗(yàn)室;
【分類號(hào)】：U414

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