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Stiffness properties of modified asphalt using high density polyethylene (HDPE) as aggregate additive material contain portland cement and fly ash as a filler

机译：使用高密度聚乙烯（HDPE）作为骨料添加材料的改性沥青的刚度特性包含波特兰水泥和粉煤灰作为填料

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摘要

Nowadays, plastic are being produced in a large amount because it has become one of the necessity for users to carry good and food containers. There is a various typesudof plastic that are produced such as High Density Polyethylene (HDPE), Polyethylene (PET), Low Density Polyethylene (LDPE) etc. The main objective of this study is to evaluate the stiffness characteristic of the modified asphalt mixture using HDPE as additive material and Portland cement and Fly ash as mineral filler by using the Indirect Tensile Stiffness Modulus (ITSM). The modified asphalt mixtures were produced from the content of HDPE pallet form. The size of recycled HDPE pallet is passing at sieve size between 3.35mm and 2.36mm. The HDPE was added into the mixture with a difference percentage which is 2%, 4%, 6%, 8 1/o and 10%. The temperature that was used to evaluated the stiffness characteristic of the control asphalt and modified asphalt is 20°C. The weight of the bitumen content that was used is, 5% as follow hot mix asphalt 14 (ACB 14) in Public Work Department (PWD) requirement. The result shows that the stiffness modulus value was increased when the content of HDPE is increased. The additional of HDPE in asphalt mixture with Portland Cement as a filler was enhanced the stiffness of the modified asphalt. The modified asphalt that was usingudPortland cement as mineral filler shows the positive effects on stiffness modulus until the maximum of HDPE percentage at 10%. Meanwhile, the trend of line asphalt mixture using fly ash as a filler was shows that it is decreased with the additional of HDPE amount in asphalt mixture. The result shows that the stiffness was decreased with the additional of HDPE and at certain percentage of HDPE which is at 8% and 10%, theudstiffness are more less than control asphalt. The optimum stiffness modulus of modified asphalt contained Portland cement as mineral filler is at 10% HDPE content while theudfly ash is 2% of HDPE content. In conclusion, the additional of recycled HDPE in modified asphalt give a positive effect to stiffness characteristic .of the modified asphalt. The control and modified asphalt that was used in this research also comply with the PWD requirement. The results also shows that the data was fluctuate from 0% to 10% HDPE content. The results indicates that the additional of recycled HDPE in asphaltudmixture was improved the stiffness modulus performance compared with the control asphalt mixture.
机译：如今，大量生产塑料是因为它已经成为用户携带商品和食品容器的必要条件之一。有多种类型的udud塑料，例如高密度聚乙烯（HDPE），聚乙烯（PET），低密度聚乙烯（LDPE）等。本研究的主要目的是评估改性沥青混合物的刚度特性通过使用间接拉伸刚度模量（ITSM）将HDPE用作添加材料，将硅酸盐水泥和粉煤灰用作矿物填料。改性沥青混合物由HDPE托盘形式的内容物生产。回收的HDPE托盘的尺寸通过的筛尺寸在3.35mm至2.36mm之间。将HDPE以2％，4％，6％，8 1 / o和10％的差异百分比添加到混合物中。用于评估对照沥青和改性沥青的刚度特性的温度为20°C。遵循公共工作部门（PWD）要求的热拌沥青14（ACB 14），所用沥青的重量为5％。结果表明，当HDPE含量增加时，刚度模量值增加。在以硅酸盐水泥为填料的沥青混合料中添加HDPE可以增强改性沥青的刚度。使用 udPortland水泥作为矿物填料的改性沥青显示出对刚度模量的积极影响，直到HDPE百分比最大值达到10％为止。同时，使用粉煤灰作为填料的线型沥青混合料的趋势表明，随着沥青混合料中HDPE用量的增加，沥青混合料会降低。结果表明，添加HDPE会降低刚度，当HDPE的百分比为8％和10％时，刚度要比对照沥青小。含矿物填料的波特兰水泥改性沥青的最佳刚度模量为HDPE含量的10％，而粉煤灰为HDPE含量的2％。总之，在改性沥青中添加再生HDPE可以对改性沥青的刚度特性产生积极影响。本研究中使用的控制沥青和改性沥青也符合PWD要求。结果还表明，数据从0％到10％的HDPE含量波动。结果表明，与对照沥青混合料相比，在沥青混合料中添加再生HDPE改善了刚度模量性能。

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    Noridayu Zainal;

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  • 年度 2014
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