By-products from mechanical recycling of polyolefins improve hot mix asphalt performance

被引：16

作者：

Beghetto, Valentina ^{[1
,2
]}

Bardella, Noemi ^{[1
]}

Samiolo, Riccardo ^{[2
]}

Gatto, Vanessa ^{[2
]}

Conca, Silvia ^{[1
]}

Sole, Roberto ^{[1
]}

Molin, Giacomo ^{[3
]}

Gattolin, Andrea ^{[4
]}

Ongaro, Nicola ^{[5
]}

机构：

[1] Univ Ca Foscari Venice, Dept Mol Sci & Nanosyst, Via Torino 155, I-30172 Venice, Venice, Italy

[2] Crossing Sr l, Viale Repubbl 193-B, I-31100 Treviso, Nui, Italy

[3] Ge Rd Srl, Via Quintavalle 25-C, I-31030 Carbonera, Nui, Italy

[4] Chimicambiente Srl, Via Leonardo da Vinci 2, I-35042 Este, Venice, Italy

[5] IFAF Sp a, IFAF Spa, Via Calnova 105, I-30020 Noventa di Piave, Venice, Italy

来源：

JOURNAL OF CLEANER PRODUCTION | 2021年 / 318卷 / 318期

关键词：

Mechanical waste recycling of polyolefins; Asphalt modifier; Hot mix asphalt; Circular economy & environmental; sustainability; Plastic waste; PLASTIC PACKAGING WASTE; CIRCULAR ECONOMY; CRUMB RUBBER; REPLACEMENT; PAVEMENTS; MIXTURES; SYSTEM;

D O I：

10.1016/j.jclepro.2021.128627

中图分类号：

X [环境科学、安全科学];

学科分类号：

08 ; 0830 ;

摘要：

Waste of polyolefin (WOPO), the sinking fraction of polyolefin recycling, is today a production waste sent to incineration. This work reports a method for the recycling of WOPO as efficient additives to produce hot mix asphalt (HMA). Physical-mechanical characteristics of HMA containing bitumen 50/70 and WOPO were compared to PE/PP mixed polyolefin (MPO) and standard HMA control specimen. Modified HMA mixtures were characterized by density, air voids, indirect tensile strength, indirect traction coefficient, Marshall stability and quotation. Atmospheric emissions for HMA containing WOPO were proven to comply within Italian legal requirements. Data acquired demonstrate that HMA containing 4 wt% of grinded WOPO by weight of asphalt binder may be efficiently employed as flexible and resistant mixture for road pavement. Environmental and economic data reported further highlight the impact of this technology, not only for asphalt producers, but also for recycling facilities, improving plastic recycling, reducing plastic incineration, waste management costs and greenhouse emissions.

引用

页数：11

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