Utilizing the characteristic of PCM which can absorb or release amounts of heat and kep temperature constant during phase transition,PEG/SiO2 was prepared by sol-gel method.Tests were carried out on asphalt mortar with different proportions of PEG/SiO2 replacing the mineral powder normally used.The analysis examined the penetration,the softening point and dynamic shear rheology to probe the effect of temperature on asphalt mortar,and high temperature rheological properties of phase particles after replacing mineral powder.Test results indicated that replacing mineral powder with PCM in certain proportions can effectively improve the high-temperature performance of asphalt mortar,but was not obvious in improving the normal temperature performance.
[1] 张伟.破碎卵石在沥青路面中的应用研究[D].武汉:武汉理工大学,2012.
[2] 邢明亮,李祖仲,何锐,等.高粘沥青胶浆动态剪切流变特性[J].材料科学与工程学报,2016,34(4):556-559.
[3] 陈庆,王建.道路改性沥青的技术研发与展望[J].化工新型材料,2003,31(9):32-35.
[4] 彭波,丁智勇,戴经梁.不同类型沥青胶浆路用性能对比[J].交通运输工程学报,2007,7(3):61-65.
[5] 邵显智,谭忆秋,邵敏华,等.沥青胶浆微观界面的研究[J].公路,2003(12):105-109.
[6] 黄继成,黄彭.基于表界面理论分析沥青剥离机理及防治对策[J].石油沥青,2005,19(4):52-55.
[7] 樊亮,魏建明,张玉贞,等.矿粉对沥青胶浆的性质影响及作用机理[J].建筑材料学报,2014,17(6):1096-1101.
[8] 谭忆秋,王大庆,边鑫,等.沥青与矿料交互作用的影响因素[J].公路交通科技,2012,29(11):6-12.
[9] Sharma A,Tyagi V V,Chen C R,et al.Review on thermal energy storage with phase change material and applications.Renew sustain energy rev[J].Renewable & Sustainable Energy Reviews,2009,13(2):318-345.
[10] 张一博,朱洪洲,李菁若,等.储热降温沥青路面用相变材料的选择[J].郑州大学学报:工学版,2012,33(3):10-14.
[11] 何丽红.复合相变储热沥青路面材料研制及降温机理[D].重庆:重庆交通大学,2016.
[12] Manning B J,Bender P R,Cote S A,et al.Assessing the feasibility of incorporating phase change material in hot mix asphalt[J].Sustainable Cities & Society,2015,19:11-16.
[13] 李超.相变材料对沥青混合料温度与性能的影响研究[D].西安:长安大学,2010.
[14] 谭忆秋,边鑫,单丽岩,等.路面用潜热材料的制备与调温性能研究[J].建筑材料学报,2013,16(2):354-359.
[15] Li J,He L,Liu T,et al.Preparation and characterization of PEG/SiO2 composites as shape-stabilized phase change materials for thermal energy storage[J].Solar Energy Materials & Solar Cells,2013,118(11):48-53.
基金资助
国家自然科学基金资助项目(51508063)
PDF
(1964KB)
