排水性聚氨酯稳定再生集料最佳胶石比与组分比
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摘要
为了解决废旧路面材料再生利用问题,满足排水路面结构需要,制备了一种新型的排水性聚氨酯稳定再生碎石材料(PPSRA)。通过肯塔堡飞散试验、析漏试验、马歇尔试验与透水性试验,对PPSRA的胶石比范围,PPSRA的稳定度随胶石比、胶水组分比和孔隙率的变化规律以及透水性随孔隙率的变化规律进行研究。试验结果表明:PPSRA的胶石比范围为3%～5%,最佳胶石比为4%,最佳组分比为1∶2. 5,PPSRA的稳定度随着混合料孔隙率的增加而降低,渗透系数与孔隙率线性正相关。
In order to solve the problem of recycling of waste pavement materials and meet the needs of drainage pavement structure,a new type of drainage polyurethane stabilized recycled gravel material( PPSRA) was prepared. The range of the ratio of the PPSRA's colloid ratio was studied by the Kentaberg scattering test and the leak test. The Marshall test was used to study the stability of PPSRA with the ratio of colloid ratio,glue composition ratio and porosity. The permeability test of PPSRA with porosity was studied by water permeability test. The test results show that the PPSRA's glue stone ratio range is 3% ～ 5%,the optimum colloid ratio is 4%,and the optimum component ratio is 1∶ 2. 5. The stability of PPSRA decreases with the increase of the porosity of the mixture. The permeability coefficient is linearly positively correlated with the porosity.
In order to solve the problem of recycling of waste pavement materials and meet the needs of drainage pavement structure,a new type of drainage polyurethane stabilized recycled gravel material( PPSRA) was prepared. The range of the ratio of the PPSRA's colloid ratio was studied by the Kentaberg scattering test and the leak test. The Marshall test was used to study the stability of PPSRA with the ratio of colloid ratio,glue composition ratio and porosity. The permeability test of PPSRA with porosity was studied by water permeability test. The test results show that the PPSRA's glue stone ratio range is 3% ～ 5%,the optimum colloid ratio is 4%,and the optimum component ratio is 1∶ 2. 5. The stability of PPSRA decreases with the increase of the porosity of the mixture. The permeability coefficient is linearly positively correlated with the porosity.
引文
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13薛子龙.路面基层开级配水泥稳定碎石使用性能研究[D].长沙:湖南大学,2015Xue Zilong.Study on the performance of open graded cement stabilized aggregate for pavement base[D].Changsha:Hunan University,2015
14 Kofteci S,Nazary M.Experimental study on usability of various construction wastes as fine aggregate in asphalt mixture[J].Construction and Building Materials,2018,185:369-379
15王素兰,石凯,韩亮,等.防滑降噪沥青混合料配合比设计及性能研究[J].新型建筑材料,2018,45(4):138-142,146Wang Sulan,Shi Kai,Han Liang,et al.Design and performance study of antiskid and noise reducing asphalt mixture[J].New Building Materials,2018,45(4):138-142,146
16李伟,郎雷.钢渣沥青混凝土渗透、压缩及耐久性试验研究[J].科学技术与工程,2017,17(11):315-321Li Wei,Lang Lei.Experimental study on permeability,compression and durability of steel slag asphalt concrete[J].Science Technology and Engineering,2017,17(11):315-321
2 Zhu J Q,Wu S P,Zhong J J,et al.Investigation of asphalt mixture containing demolition waste obtained from earthquake-damaged buildings[J].Construction and Building Materials,2012,29:466-475
3 Pasandín A R,Perez I.Overview of bituminous mixtures made with recycled concrete aggregates[J].Construction and Building Materials,2015,74:151-161
4 Radevic A,Durekovic A,Zakic D,et al.Effects of recycled concrete aggregate on stiffness and rutting resistance of asphalt concrete[J].Construction and Building Materials,2017,136:386-393
5李丽慧,董希斌.排水性沥青稳定碎石基层配合比设计[J].中外公路,2008,28(2):47-49Li Lihui,Dong Xibin.Mixing ratio design of drainage asphalt stabilized macadam base[J].Journal of China&Foreign Highway,2008,28(2):47-49
6 Kong D Z,Xiao Y,Wu S P,et al.Comparative evaluation of designing asphalt treated base mixture with composite aggregate types[J].Construction and Building Materials,2017,156:819-827
7许凯泉.水泥稳定碎石泡沫沥青再生技术研究[D].西安:长安大学,2017Xu Kaiquan.Study on regeneration technology of cement stabilized macadam foam asphalt[D].Xi’an:Chang'an University,2017
8 Hou Y Q,Ji X P,Su X L,et al.Laboratory investigations of activated recycled concrete aggregate for asphalt treated base[J].Construction and Building Materials,2014,65:535-542
9王火明,李汝凯,王秀,等.多孔隙聚氨酯碎石混合料强度及路用性能[J].中国公路学报,2014,27(10):24-31Wang Huoming,Li Rukai,Wang Xiu,et al.Strength and road performance for porous polyurethane mixture[J].China Journal of Highway and Transpor,2014,27(10):24-31
10 Zhang Z Q,Wang K J,Liu H,et al.Key performance properties of asphalt mixtures with recycled concrete aggregate from low strength concrete[J].Construction and Building Materials,2016,126:711-719
11李汝凯,王小明,王火明,等.聚氨酯碎石透水路面胶水用量试验研究[J].公路工程,2015,40(2):105-108,127Li Rukai,Wang Xiaoming,Wang Huoming,et al.Research on adhesive dosage of porous polyurethane gravel pavement[J].Highway Engineering,2015,40(2):105-108,127
12王翔.基于正交分析法的聚氨酯弹性混凝土配合比设计与性能评价[J].上海公路,2017(3):77-81,5Wang Xiang.Mixture ratio design and performance evaluation of polyurethane elastic concrete based on orthogonal analysis[J].Shanghai Highways,2017(3):77-81,5
13薛子龙.路面基层开级配水泥稳定碎石使用性能研究[D].长沙:湖南大学,2015Xue Zilong.Study on the performance of open graded cement stabilized aggregate for pavement base[D].Changsha:Hunan University,2015
14 Kofteci S,Nazary M.Experimental study on usability of various construction wastes as fine aggregate in asphalt mixture[J].Construction and Building Materials,2018,185:369-379
15王素兰,石凯,韩亮,等.防滑降噪沥青混合料配合比设计及性能研究[J].新型建筑材料,2018,45(4):138-142,146Wang Sulan,Shi Kai,Han Liang,et al.Design and performance study of antiskid and noise reducing asphalt mixture[J].New Building Materials,2018,45(4):138-142,146
16李伟,郎雷.钢渣沥青混凝土渗透、压缩及耐久性试验研究[J].科学技术与工程,2017,17(11):315-321Li Wei,Lang Lei.Experimental study on permeability,compression and durability of steel slag asphalt concrete[J].Science Technology and Engineering,2017,17(11):315-321
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