Laboratory Evaluation of Hot Asphalt Concrete Properties with Cuban Recycled Concrete Aggregates

被引：12

作者：

Acosta Alvarez, Debora ^{[1
]}

Alonso Aenlle, Anadelys ^{[1
]}

Jose Tenza-Abril, Antonio ^{[2
]}

机构：

[1] Technol Univ Havana Jose Antonio Echeverria, Fac Civil Engn, Havana 11500, Cuba

[2] Univ Alicante, Dept Civil Engn, E-03080 Alicante, Spain

来源：

SUSTAINABILITY | 2018年 / 10卷 / 08期

关键词：

recycled aggregates (RA); construction and demolition waste (CDW); hot asphalt mixtures; stiffness modulus; X-ray diffraction; DEMOLITION WASTE; MIX ASPHALT; MECHANICAL-PROPERTIES; CONSTRUCTION; DURABILITY; MORTAR; DEBRIS;

D O I：

10.3390/su10082590

中图分类号：

X [环境科学、安全科学];

学科分类号：

08 ; 0830 ;

摘要：

Recycled Aggregates (RA) from construction and demolition waste (CDW) are a technically viable alternative to manufacture of asphalt concrete (AC). The main objective of this work is to evaluate the properties of hot asphalt mixtures that have been manufactured with different sources of CDW (material from concrete test specimens, material from the demolition of sidewalks and waste from prefabrication plants) from Cuba. Dense asphalt mixtures were manufactured with a maximum aggregate size of 19 mm, partially replacing (40%) the natural aggregate fraction measured between 5 mm and 10 mm with three types of RA from Cuba. Marshall specimens were manufactured to determine the main properties of the AC in terms of density, voids, stability and deformation. Additionally, the stiffness modulus of the AC was evaluated at 7 degrees C, 25 degrees C and 50 degrees C. The results corroborate the potential for using these sources of CDW from Cuba as a RA in asphalt concrete, thereby contributing an important environmental and economic benefit.

引用

页数：13

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