柔性聚丙烯纤维-改性乳化沥青混合料的性能
|
摘要
基于"工程地圈系统",首先分析影响路面结构性能的因素,然后以湿轮磨耗值和负荷轮粘砂量为评价指标,通过室内试验给出纤维沥青混合料的试验配合比,并分析纤维长度对混合料性能的影响;测试纤维沥青混合料的抗剪切、抗裂、抗疲劳等性能,对纤维增强沥青混合料性能的机理进行解释。结果表明:聚丙烯纤维-改性乳化沥青混合料试验配合比为纤维∶沥青∶石料∶水=0.25∶11.5∶100∶9.0,施工配合比建议为0.25∶11.5∶100∶11.5。当纤维长度大于两倍石料最大粒径时,对混合料性能的提高并不明显;温度越高则纤维沥青混合料的质量损失越小,并最终趋于稳定。纤维沥青混合料和沥青混合料对应的临界抗飞散温度分别是25和40℃;纤维的加入,使得混合料抗剪、抗裂、抗疲劳等性能均有所提高。
Influencing factors to pavement performance were analyzed firstly based on the"Engineering Geosphere System".Then the experimental mixing ratio of fiber-asphalt mixture was obtained and the fiber dimension effect on performance was analyzed according to soak abrasion and loading wheel.Finally,the physico-mechanical parameters were tested,and the qualitative explaination for the fiber-reinforced mechanism was given.The results show:The experimental mixing ratio is 0.25∶11.5∶100∶9.0 for fiber,modified emulsion-asphalt,gravel and water,and 0.25∶11.5∶100∶11.5 is recommended for the construction.When the fiber length is two times beyond the maximum gravel diameter,the reinforced performance is unobvious;Mass loss of mixture decreases with the increasing temperature,and becomes stable finally.The critical temperatures for these two mixtures are 25℃ and 40℃ respectively;The mixture performance improves due to the introduction of fiber.
Influencing factors to pavement performance were analyzed firstly based on the"Engineering Geosphere System".Then the experimental mixing ratio of fiber-asphalt mixture was obtained and the fiber dimension effect on performance was analyzed according to soak abrasion and loading wheel.Finally,the physico-mechanical parameters were tested,and the qualitative explaination for the fiber-reinforced mechanism was given.The results show:The experimental mixing ratio is 0.25∶11.5∶100∶9.0 for fiber,modified emulsion-asphalt,gravel and water,and 0.25∶11.5∶100∶11.5 is recommended for the construction.When the fiber length is two times beyond the maximum gravel diameter,the reinforced performance is unobvious;Mass loss of mixture decreases with the increasing temperature,and becomes stable finally.The critical temperatures for these two mixtures are 25℃ and 40℃ respectively;The mixture performance improves due to the introduction of fiber.
引文
[1]沙炯,邢明亮,等.变幅荷载作用下沥青混合料的疲劳损伤试验[J].材料科学与工程学报,2017,35(2):306~310,315.
[2]王秀芳,邢建欣.聚丙烯纤维改善沥青混合料路用性能研究[J].山东交通科技,2009(5):31~33.
[3]杨肩宇.聚丙烯纤维乳化沥青稀浆封层技术研究[J].石油沥青,2006,20(1):26~29.
[4]胡亚娟.加纤维(改性)稀浆封层技术研究[D].阜新:辽宁工程技术大学,2009.
[5] Zhang X.D.,Zhang B.,Sun C.Study on Fiber Modified Slurry Technology[J].Applied Mechanics and Materials,2013,256~259(Part1):1707~1714.
[6]王晶,张耀君,王亚超.沥青及聚丙烯纤维增韧粉煤灰-矿渣基地质聚合物的制备[J].硅酸盐通报,2013,32(7):1432~1437.
[7] Tapkin S.,Cevik A.,Usar U.,et al.Rutting Prediction of Asphalt Mixtures Modified by Polypropylene Fibers via Repeated Creep Testing by Utilising Genetic Programming[J].Materials Research-ibero-american Journal of Materials,2013,16(2):277~292.
[8]董哲.橡胶粉-聚丙烯纤维复合改性微表处混合料技术性能研究[J].公路工程,2015,40(1):79~83,132.
[9]郭娟.聚丙烯纤维对微表处混合料技术性能的影响研究[J].公路工程,2015,40(4):163~167,173.
[10] Vadood M.,Johari M.S.,et al.Relationship between Fatigue Life of Asphalt Concrete and Polypropylene/polyester Fibers Using Artificial Neural Network and Genetic Algorithm[J].Journal of Central South University,2015,22(5):1937~1946.
[11] Amuchi M.,Abtahi S.M.,Koosha B.,et al.Reinforcement of Steel-slag Asphalt Concrete Using Polypropylene Fibers[J].Journal of Industrial Textiles,2015,44(4):526~541.
[12]王思敬.地圈动力学——地质环境、灾害与工程研究基础[J].工程地质学报,2004,12(2):113~117.
[13]张玉.高速铁路风积土地基的沉降特性与控制[D].阜新:辽宁工程技术大学,2013.
[14]张玉,张向东,陈铁林,等.风积土地区工程病害分类和防治系统化研究[J].灾害学,2017,32(1):11~16,21.
[15]张向东,周新勍,张玉,等.辽西风积土多因素耦合击实试验[J].辽宁工程技术大学学报(自然科学版),2014,33(11):1492~1496.
[16]李丽民,何兆益,等.抗车辙柔性基层沥青混合料的力学性能[J].材料科学与工程学报,2014,32(5):755~759,764.
[2]王秀芳,邢建欣.聚丙烯纤维改善沥青混合料路用性能研究[J].山东交通科技,2009(5):31~33.
[3]杨肩宇.聚丙烯纤维乳化沥青稀浆封层技术研究[J].石油沥青,2006,20(1):26~29.
[4]胡亚娟.加纤维(改性)稀浆封层技术研究[D].阜新:辽宁工程技术大学,2009.
[5] Zhang X.D.,Zhang B.,Sun C.Study on Fiber Modified Slurry Technology[J].Applied Mechanics and Materials,2013,256~259(Part1):1707~1714.
[6]王晶,张耀君,王亚超.沥青及聚丙烯纤维增韧粉煤灰-矿渣基地质聚合物的制备[J].硅酸盐通报,2013,32(7):1432~1437.
[7] Tapkin S.,Cevik A.,Usar U.,et al.Rutting Prediction of Asphalt Mixtures Modified by Polypropylene Fibers via Repeated Creep Testing by Utilising Genetic Programming[J].Materials Research-ibero-american Journal of Materials,2013,16(2):277~292.
[8]董哲.橡胶粉-聚丙烯纤维复合改性微表处混合料技术性能研究[J].公路工程,2015,40(1):79~83,132.
[9]郭娟.聚丙烯纤维对微表处混合料技术性能的影响研究[J].公路工程,2015,40(4):163~167,173.
[10] Vadood M.,Johari M.S.,et al.Relationship between Fatigue Life of Asphalt Concrete and Polypropylene/polyester Fibers Using Artificial Neural Network and Genetic Algorithm[J].Journal of Central South University,2015,22(5):1937~1946.
[11] Amuchi M.,Abtahi S.M.,Koosha B.,et al.Reinforcement of Steel-slag Asphalt Concrete Using Polypropylene Fibers[J].Journal of Industrial Textiles,2015,44(4):526~541.
[12]王思敬.地圈动力学——地质环境、灾害与工程研究基础[J].工程地质学报,2004,12(2):113~117.
[13]张玉.高速铁路风积土地基的沉降特性与控制[D].阜新:辽宁工程技术大学,2013.
[14]张玉,张向东,陈铁林,等.风积土地区工程病害分类和防治系统化研究[J].灾害学,2017,32(1):11~16,21.
[15]张向东,周新勍,张玉,等.辽西风积土多因素耦合击实试验[J].辽宁工程技术大学学报(自然科学版),2014,33(11):1492~1496.
[16]李丽民,何兆益,等.抗车辙柔性基层沥青混合料的力学性能[J].材料科学与工程学报,2014,32(5):755~759,764.