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| 摘要: |
| 通过现场和室内试验检验国外2个沥青路面均匀区域构造深度预估模型的适用性,结果表明这2个模型都存在一定的缺陷.对上述模型进行改进,确定了以细度模数、最大公称粒径4、.75 mm筛通过率和油石比为自变量的沥青路面均匀区域构造深度预估模型,结果表明,该模型可以较好地预估SMA-16间断级配和AC-20连续级配沥青路面均匀区域的构造深度. |
| 关键词: 沥青路面,均匀区域,构造深度,预估模型,离析 |
| DOI： |
| 分类号:U414.75 |
| 基金项目:交通部西部科技项目(200431882053) |
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| Prediction Model of Non-segregated Area Texture Depth of Asphalt Pavement |
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ZHENG Xiao-guang XU Jian CONG Lin GUO Zhong-yin
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| Abstract: |
| The non-segregated area texture depth can be predicted using various properties of the original job-mix formula.Two models for predicting non-segregated area texture depth were developed.The models are verified by the results of field and laboratory tests,indicating that the models are inadequate for the wide range of mix types.A new model is developed to relate fine modulus,the nominal maximum aggregate size,percentage passing the 4.75 mm sieve and asphalt content.The model yields a good estimate of the mixes including SMA-16 and AC-20 mixes. |
| Key words: asphalt pavement,non-segregated area,texture depth,prediction model,segregation |
