Luca Tefa

Luca Tefa
Politecnico di Torino | polito · DIATI - Department of Environment, Land and Infrastructure Engineering

Doctor of Engineering

About

19
Publications
1,424
Reads
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174
Citations
Citations since 2016
19 Research Items
172 Citations
20162017201820192020202120220102030405060
20162017201820192020202120220102030405060
20162017201820192020202120220102030405060
20162017201820192020202120220102030405060

Publications

Publications (19)
Conference Paper
Introduction. According to European regulations, road tunnel safety is strategic in the management of national and international road corridors. Although the accident rate is lower in tunnels than on open roads, the severity of crashes in tunnels is higher due to the presence of hard lateral obstacles and limited space in case of lane departure. Dr...
Article
This study focuses on the ideal mix of constituents (aggregate, binder, liquid phase, and admixtures) for porous concrete (PC) with optimal fresh properties to be used in pervious road pavements. Ordinary portland cement (CEM-I) and alkali-activated blast furnace slag (AA-BFS) were used as binders. This experimental investigation focused on finding...
Article
A more extensive use of recycled aggregate in road construction is key to meeting the ambitious targets of the EU circular economy action plan. However, scepticism among designers, contractors and road agencies remains a bottleneck. This integrated structural-environmental study demonstrates the advantages of using recycled construction and demolit...
Article
Previous investigation has revealed that diverging maneuvers along curved terminals lead to a deterioration in the longitudinal and transversal performances of drivers with respect to linear ones. As a countermeasure, innovative horizontal markings (HMs) may be used to compel drivers to drive more prudently and maintain better vehicle control. In t...
Article
Recent works have demonstrated that construction and demolition waste (CDW) aggregates for subbase road pavement applications can be stabilized via the alkali activation of their fine fraction (d < 0.125 mm). Despite the promising results with this method, the durability of alkali-activated (AA) CDW fines (which act to stabilize CDW aggregate mixtu...
Article
Full-text available
The use of recycled materials in roadway construction and rehabilitation can achieve significant benefits in saving natural resources, reducing energy, greenhouse gas emissions and costs. Construction and demolition waste (CDW) recycled aggregate as an alternative to natural one can enhance sustainability benefits in roadway infrastructure. The obj...
Article
This study investigates the effects of curing temperature on alkali-activated fine particles of undivided construction and demolition waste (CDW) aggregates. Previous investigations demonstrated that such activated fines can stabilize the whole mixture thereby improving its mechanical properties. To comprehensively investigate the behaviour of the...
Chapter
Pervious concrete (PC) pavements are water control systems for infiltrating storm water, reducing runoffs, contrasting heat-island effects and noise diffusion in urban environments. Their poor strength and stiffness, which stem from their porosity, limit their application for use in sidewalks and residential streets. To overcome this limitation, th...
Article
The paper presents the results of a laboratory investigation seeking to quantify the effects of fine quantity and type on the workability and resilient response of aggregate-fine soil mixtures for subbase formation. Laboratory devices were used to simulate in-field conditions and compact samples and evaluate their resilient response under pulsing l...
Article
This study investigates the potential of fine particles of recycled construction and demolition waste (CDW) aggregate to undergo alkali-activation when mixed with an appropriate alkaline solution. The fine is a natural by-product of the milling process and includes particles from four main material sources (i.e., recycled concrete, recycled asphalt...
Thesis
Recycled aggregates from construction and demolition waste (CDW) are a viable alternative to natural granular materials (NGM) in the formation of unbound layers of low to medium trafficked roads. Several methods to improve the mechanical and durability properties of CDW aggregates through stabilization techniques have been proposed. The recent use...
Article
The alkaline-activation of aluminosilicate compounds present in fine particles of unselected construction and demolition waste (UCDW) aggregates is investigated here. The aim is to stabilize UCDW aggregates by adding an alkali-activating solution (AAS) composed of sodium hydroxide and sodium silicate and then assess their potential employment in st...
Conference Paper
This study investigates the potential of the different components of CDW (recycled concrete RC, recycled asphalt RA, crushed bricks and tiles BT, natural aggregate NA, and undivided CDW UND) to undergo alkali-activation (AA) when mixed with an appropriate alkaline solution (AS). The feasibility of the AA of CDW fines for the stabilization of CDW ag...
Article
Although previous studies attested to the feasibility of using recycled aggregates from unseparated construction and demolition waste (UCDW aggregates) in unbound layers of road pavements, the degradation caused by compaction and freezing action under simulative conditions has not been investigated yet. To investigate the effects of these two sourc...
Article
High volumes of construction and demolition waste (CDW) are continuously produced worldwide. The European Commission aims to increase the recycling of nonhazardous CDW to a minimum of 70% in weight terms by 2020. Hence, there is increasing pressure on researchers to focus on the valorization of these alternative materials for use in the world of co...
Poster
Full-text available
1. World population in urban areas is still growing causing severe impact on environment and decrement of the life quality of inhabitants. 2. To smoothen the heavy impact of traditional transportation infrastructures, current and future urban facilities must be more environmental friendly and sustainable. 3. One way is to develop new “green transpo...
Conference Paper
Full-text available
High volumes of construction and demolition waste (CDW) are continuously produced worldwide. The European Commission aims to increase the recycling of non hazardous CDW to a minimum of 70% in weight terms by 2020. Hence, there is increasing pressure on researchers to focus on the valorization of these alternative materials for use in the world of c...

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