Zhuangzhuang Liu

Zhuangzhuang Liu
Chang'an University · School of Highway

Ph.D. in Highway Engineering

About

85
Publications
13,529
Reads
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1,269
Citations
Introduction
My researches are focused on advanced building materials. Seeking a durable construction and material for highway; reliability-based analyses and design approach to better design of pavements; advanced numerical simulations of building materials.
Additional affiliations
December 2018 - present
Chang'an University
Position
  • Professor (Associate)
December 2016 - December 2018
Chang'an University
Position
  • Professor (Assistant)
September 2014 - September 2015
University of California, Los Angeles
Position
  • Research Assistant
Description
  • My research is about the cement chemistry.
Education
September 2013 - December 2016
Chang'an University
Field of study
  • Highway and Railway Engineering
September 2010 - June 2013
Chang'an University
Field of study
  • Road Materials Science and Engineering
September 2006 - June 2010
Chang'an University
Field of study
  • Inorganic Non-metallic Materials Engineering

Publications

Publications (85)
Article
This paper focused on the properties of asphalt mixtures containing anti-freeze filler (ICB-1, ICB-2, ICB-3 and ICB-4) with the volume replacement method. And the void content, high- and low-temperature properties and the susceptibility to moisture damage are investigated by experimental method. Based on the colligative property of dilute solution,...
Article
Based on the theoretical analysis and experimental study, this paper summarized and compared the frequently-used antifreeze asphalt mixtures (AFACs) design methods, i.e. mass displacement, volume displacement, and combined optimum design method. The result reveals that the combined optimum design method for AFACs is the optimal method, theoreticall...
Article
Due to their nonhydraulic nature, magnesium oxychloride cements (MOCs) are susceptible to degradation following contact with water. Improving the water resistance of these materials requires better understanding of hydrated phase relations and the sensitivity of hydrated phases to water. Toward this end, a series of targeted experiments and complem...
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Full-text available
The snow or ice that forms on pavement surfaces in cold weather results in severe traffic accidents and economic losses. Asphalt pavement containing salts is a typical functional pavement that prevents ice or snow from covering pavement surfaces in cold weather, thus maintaining the skid resistance and traffic capacity of the roads. In this paper,...
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Sprinkled snow melting salt (SMS) exerts a snow melting effect and also has a negative impact on the asphalt pavement and the environment. Salt storage pavement technology can alleviate these two problems. However, non-alkaline SMSs may have the risk of affecting asphalt mastic properties and further affecting the mechanical properties of asphalt p...
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The paper aims to understand the effect of light-burned dolomite powders (LBD) on ordinary Portland cement (OPC) and evaluate the influence of LBD dosages and fineness levels on the mechanical properties and hydration properties of OPC. The LBD/OPC pastes were prepared by OPC blended with LBD at various replacement dosages and fineness levels. The...
Article
Knowing compaction process of pavement at meso-scale is of great significance for improving the material design and construction quality. This study aims to investigate dynamic responses of particle in aggregate mixture during compaction by using a Smart Aggregate. As the compaction method and material composition have significant influence on dyna...
Article
Piezoelectric energy harvesters (PEHs) convert mechanical energy into electrical energy providing a new method for road infrastructure energy self-consistency. However, the structural design process of the existing PEH is not clear, some PEH structures have deficiencies, and the secondary construction when PEH is combined with pavements is cumberso...
Article
Substituting steel slag for mineral materials in road construction has potential economic and environmental benefits. Due to the excellent thermal conductivity of steel slag, it is often used in functional pavements. However, there are few studies on the thermal conductivity characterization of steel slag asphalt mixture (SSAM). For this reason, th...
Article
Using piezoelectric materials to convert mechanical energy into electrical energy provides ideas for energy self-consistency of road infrastructure. Since some 3-3 form piezoelectric transducers underutilize vehicle loads, which weaken the energy conversion potential, the full-pressure concept was proposed and novel piezoelectric transducers were d...
Article
It can be a great challenge for pavement construction on the Qinghai-Tibet Plateau considering the unique climatic, geological, and engineering conditions. The coupling action of continuously repeated cycles of traffic loading and harsh environmental conditions, such as the high-altitude, low temperature, great temperature difference, and intense r...
Article
The present study investigates the effect of SiO2 coating on the properties of luminescent powder (LP) and self-luminescent cement-based composite materials (SLCCM). In order to investigate it, firstly, the water resistance of the uncoated and coated LP was analyzed by thermogravimetric analysis (TG), XRD, SEM and fluorescence microscopy (FM) tests...
Article
Anti-icing asphalt pavement (AIAP) with salt-storage additive (SSA) has been developed and researched for decades with the aim to provide support for winter road maintenance in cold regions. This paper presents a comprehensive review of literature and synthesizes the state of the art research and technological developments of SSA incorporated into...
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The major contemporary in road pavement engineering is related to the creation of green and sustainable infrastructures, e.g., reduction of environmental impacts, increase in traffic safety, and transportation efficiency, etc. This review presents the recent trends in research and the technical solutions developed so far to address these challenges...
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Sustainable and resilient pavement infrastructure is critical for current economic and environmental challenges. In the past 10 years, the pavement infrastructure strongly supports the rapid development of the global social economy. New theories, new methods, new technologies and new materials related to pavement engineering are emerging. Deteriora...
Article
This study developed energy harvesting arrays (EHA) composed of multiple piezoelectric elements for traffic monitoring and energy harvesting. The developed EHA was investigated through compression tests to simulate the effects of different vehicle axle loads and speeds. The effect of the number and configuration of piezoelectric elements on piezoel...
Article
The piezoelectric effect in piezoelectric transducers converts the mechanical energy into electrical energy to supply power to road facilities. The piezoelectric transducer designed in the 3–3 piezoelectric mode has been widely studied due to the consideration of power generation performance and load-bearing requirements. However, the conservative...
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Low tensile strength, poor elastic modulus, and complex concrete cracking work condition are almost unavoidable due to the intrinsic brittleness. To deal with concrete maintenance and durability, microbial self-healing concretes have been rapidly developed and widely applied recently. The microbial self-healing can specifically patch fractures as w...
Article
Electrically heated roads are used as a substitute for chemicals and mechanical devices to ensure mobility and traffic safety in winter weather. This paper aims to design an electrical-thermal system and recommends the best system parameters based on the melting efficiency, energy costs and mechanical durability of the pavement. In addition, the sn...
Article
Asphalt materials display the inherent ability to heal micro-cracks and the microwave heating technique can help accelerate this process thus promoting the creation of a durable asphalt pavement. The objective of this study is to investigate the difference in healing potential between two representative types of asphalt mixtures, namely dense aspha...
Article
Microwave heating technique is a promising asphalt pavement maintenance method with minimal external intervention. In order to employ this technology in real engineering applications, massive research efforts have dealt with avoiding overheating and non-uniform heating issues. Microwave heating frequency and power are two relevant inputs which dese...
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Full-text available
As largely documented in the literature, the stark restrictions enforced worldwide in 2020 to curb the COVID-19 pandemic also curtailed the production of air pollutants to some extent. This study investigates the perception of the air pollution as assessed by individuals located in ten countries: Australia, Brazil, China, Ghana, India, Iran, Italy,...
Article
Improving drivers’ visibility in night time conditions are vital. Within such context, the use of self-luminescent cement-based composite materials (SLCCM) could represent an enhancement with regard to road safety. In this study, the influence of hydration and distribution of luminescent powder (LP) on the mechanical properties and brightness of SL...
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Full-text available
In order to investigate the effect of hydrophobic polymer softening points on salt-based fillers used in antifreeze asphalt concrete (AFACs), moisture absorption, salt-release property and thermal stability were studied and the performance of antifreeze and moisture susceptibility of AFACs were also assessed. Without preheating procedure, the softe...
Article
As a preventive maintenance approach, microwave self-healing is an effective method to repair small pavement cracks at early stage and reduce maintenance costs. However, the difference in microwave absorption ability of asphalt pavement engenders the common problem of uneven heating. This study aims to evaluate the feasibility of applying ferrite t...
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Full-text available
The restrictive measures implemented in response to the COVID-19 pandemic have triggered sudden massive changes to travel behaviors of people all around the world. This study examines the individual mobility patterns for all transport modes (walk, bicycle, motorcycle, car driven alone, car driven in company, bus, subway, tram, train, airplane) befo...
Article
This research explores the influence of waste engine oil bottom (WEOB) on the high temperature rheological property of two asphalt binders (i.e. base binder and SBS modified binder). For this study, these binders were first modified by WEOB with different contents (2, 4, and 6 wt%). The high temperature rheological properties were evaluated by visc...
Article
Self-luminescent cement-based composite materials (SLCCM) have been considered as an innovatively functional civil engineering material for environmental protection pavement and smart pavement. In this study, luminescent cement-based composite materials (LCCM) were prepared by doping luminescent powder (LP) and reflective powder (RP) into cement-ba...
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Full-text available
COVID-19 pandemic has heavily impacted the global community. To curb the viral transmission, travel restrictions have been enforced across the world. The dataset documents the mobility disruptions and the modal shifts that have occurred as a consequence of the restrictive measures implemented in ten countries: Australia, Brazil, China, Ghana, India...
Article
The utilization of steel slag in asphalt concrete can improve the thermal conductivity of steel slag asphalt concrete. The thermal conductivity of asphalt concrete largely affects the surface temperature distribution of asphalt pavement, which in turn affects the mechanical characteristics of asphalt pavement and the temperature of the environment...
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Full-text available
Four additives are investigated in the laboratory as railway ballast stabilisers. Repeated load triaxial tests assess the mechanical properties of stabilised ballast. The stabilisers enhance resilient modulus and resistance to permanent deformation. Expensive and time-consuming maintenance operations are routinely performed to preserve the ballast...
Article
Piezoelectric technology introduced to pavement structures can transform the potential renewable mechanical energy in the road into electrical energy, and this provides new ideas for solving the energy supply problem of green and intelligent transportation. The purpose of this study is to quantify the energy output of piezoelectric transducers unde...
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Full-text available
The dataset deals with the air quality perceived by citizens before and during the enforcement of COVID-19 restrictions in ten countries around the world: Australia, Brazil, China, Ghana, Italy, India, Iran, Norway, South Africa and the United States. An online survey conveniently translated into Chinese, English, Italian, Norwegian, Persian, Portu...
Article
Piezoelectric transducers convert mechanical energy in the pavement into electrical energy, providing a new energy supply for road auxiliary facilities. To quantify the relationship between vehicle loads and the electrical energy output of a piezoelectric transducer, the rolling process of a vehicle on the piezoelectric transducer is analyzed. Two...
Article
The concrete transportation infrastructures will undergo both fatigue traffic loading and environmental impacts during the whole service life, including rigid pavements, bridges decks, airfield runways, railway bridges, even high-speed railways and concrete structures in the ocean. This study aims to investigate the effects of external sulfate atta...
Article
Some metallic waste, such as steel slag, has great potential for microwave heating to heal asphalt mixtures as an excellent microwave absorbing material. Prior to this study, hot braised steel slag (HBSS) was firstly selected from three kinds of metallic wastes according to the microwave heat releasing test results. Afterwards, the self-healing per...
Article
This study focuses on the thermal conductivity of steel slag asphalt mixtures. The initial aim of this study was to verify the feasibility of adding steel slag to asphalt mixtures as a thermal aggregate to increase the thermal conductivity for electrical-thermal snow melting. The thermal conductivity of different rock aggregates and steel slags wer...
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Full-text available
Excessive usage of non-renewable natural resources and massive construction wastes put pressure on the environment. Steel slags, the main waste material from the metal industry, are normally added in asphalt concrete to replace traditional aggregate. In addition, as a typical microwave absorber, steel slag has the potential to transfer microwave en...
Article
Although microstructure is closely related to performance and is even considered decisively influential, this paper addresses the poorly understood morphology characteristics of styrene-butadiene-styrene (SBS). Eighteen groups of polymer-modified asphalt (PMA) were prepared with three binder sources, four SBS polymers and five modifier contents. Fl...
Article
The present study was conducted to evaluate the cracking behaviors of warm modified asphalt with different short-term aging levels. To this end, nine types of asphalt binders including three base asphalt and those with two warm mix asphalt (WMA) additives were considered. Thin film oven test (TFOT) with various durations (0h, 5h, 7h) were carried o...
Article
Attainment of cycling comfort on urban roads encourages travelers to use bicycles more often, which has social and environment benefits such as to reduce congestion, air pollution and carbon emissions. Cycling vibration is responsible for the cyclists’ perception of (dis)comfort. How asphalt pavement's surface characteristics relate to cycling comf...
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The adhesion bonding between asphalt and aggregate significantly influences field performance and durability of asphalt pavement. Adhesion promoters are typically used to improve asphalt-aggregate bonding and minimize moisture-related pavement damage, such as cracking and raveling. This study evaluated the effectiveness of plant ash byproduct as ad...
Article
In order to determine the variation rule of the open-circuit voltage of piezoelectric transducers with various influence factors, and to provide a theoretical basis for improving the effect of energy collection of piezoelectric pavement, sandwich piezoelectric transducers were fabricated by using PZT-5H piezoelectric ceramic wafers and polyurethane...
Article
Water Reducing Agents (WRAs) are usually utilized in cement concrete to reduce the water-cement ratio, increase mechanical strength, and improve the durability of concrete structures. As a kind of widely used construction materials in pavement structures, i.e., base or subbase courses, Cement Stabilized Aggregates (CSAs) have their own shortcomings...
Article
In order to investigate the reasonable asphalt layer thickness for graded crushed stone base asphalt pavement, BISAR 3.0 program was adopted to calculate the strain at the surface and bottom of different asphalt layer thickness, the compressive strain on the top of the subgrade, the shear stress of different depth in the asphalt layer and graded cr...
Article
To evaluate sensitivity of moisture damage resistance with chemical composition of asphalt, the adhesion energy, debonding energy as well as compatibility ratio of 69 asphalt-aggregate combinations were calculated with thermodynamical models. Pearson correlation analysis and regression analysis were carried out to correlate the relationships betwee...
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Full-text available
Environmental condition affects the property of construction materials. This study gives an initial understanding of Portland cement hydration under low temperatures from the views of laboratory experiments (including electrical resistivity, degree of hydration (DoH), and maturity) as well as thermodynamic calculation. The hydrates of Portland ceme...
Article
Portland cement hydration is related to mechanical properties, durability and sustainability of cement concretes, and also to the service level of building and structures. This paper will report an initial understanding of Portland cement hydration under low temperatures based on several laboratorial investigations (e.g. thermal gravity analysis /d...
Article
High-modulus asphalt concrete (HMAC) is used widely in several countries; however, more investigations on the performance of HMAC are still needed. To investigate the effects of modifier content on the performance of HMAC and evaluate the fatigue property of HMAC, two kinds of HMACs containing 5%, 10%, and 15% of PR PLAST S® (PRS) and PR PLAST Modu...
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To inspect the degree of compaction of cement-stabilized macadam (CSM), a new detector was developed based on an instantaneous impulsion method. The degree of compaction could be assessed by the acceleration response value (ARV). To achieve the appropriate parameter of device, the gaskets, falling distance, and hammer weight were optimized. The cor...
Article
Under the dilemma of non-renewable natural resources shortage and environmental pollution issues, as a novel aggregate used in asphalt pavement, the application of steel slag is propitious to the improvement of the environment and the enhancement of economics. Meanwhile, steel slag has great potential for microwave heating as an excellent microwave...
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Full-text available
Pavement heats the near-surface air and affects the thermal comfort of the human body in hot summer. Because of a large amount of connected porosity of porous Portland cement concrete (PPCC), the thermal parameters of PPCC are much different from those of traditional Portland cement concrete (PCC). The temperature change characteristics of PPCC and...
Article
Portland cement have to hydrate in cold climates in some particular conditions. Therefore, a better understanding of cement hydration under low temperatures would benefit the cement-based composites application. In this study, Portland cement was, therefore, kinetically and thermodynamically simulated based on a simple kinetics model and minimizati...
Article
In order to study the effect of the factors in coastal areas, such as sea salt ions, water vapor and temperature cycling on the performance of asphalt mixture, first, the accelerated salt-wet-heat cycling test system for asphalt mixture is established. Based on this system, the influence of cycling length, temperature, cycling times and salt concen...
Article
The surface macrotexture of asphalt mixture significantly influences the skid resistance of pavement. In this study, a handy laser scanner was employed to collect (3D) macrotexture data of asphalt pavement surface, and the dynamic friction coefficient of pavement surface was measured by a dynamic friction tester. In order to qualitatively analyze t...