本文選題：道路工程 + 針入度指數(shù)��； 參考：《鐵道科學(xué)與工程學(xué)報(bào)》2017年10期

【摘要】：為了尋找一種合理的評(píng)價(jià)SBS改性瀝青性能的針入度測(cè)試方法,在3種針重、4種溫度條件下,對(duì)不同改性劑摻量和結(jié)構(gòu)類型的SBS改性瀝青進(jìn)行針入度試驗(yàn),同時(shí),采用車轍試驗(yàn)對(duì)SBS改性瀝青混合料的高溫性能進(jìn)行分析。試驗(yàn)結(jié)果表明:標(biāo)準(zhǔn)針入度測(cè)試方法下測(cè)定的針入度難以反映不同改性瀝青的稠度差異及高溫性能差異。在對(duì)試驗(yàn)條件修正為"試驗(yàn)溫度30℃,針重150 g,貫入時(shí)間5 s",即修正針入度法后,所測(cè)得的針入度能較好地評(píng)價(jià)SBS改性瀝青的感溫性能,且SBS改性瀝青針入度大小與混合料高溫性能有良好的相關(guān)性。
[Abstract]:In order to find a reasonable penetration test method for evaluating the performance of SBS modified asphalt, the penetration test of SBS modified asphalt with different modifier content and structure was carried out under three kinds of needle-weight and four temperature conditions. The high temperature performance of SBS modified asphalt mixture was analyzed by rutting test. The test results show that the penetration measured by the standard penetration test method can not reflect the consistency difference and the high temperature performance difference of different modified asphalt. When the test conditions were revised as "test temperature 30 鈩，

本文編號(hào)：1901740