
Che Ros IsmailUniversity of Technology Malaysia | UTM · Faculty of Civil Engineering (FKA)
Che Ros Ismail
BSc (Civil Engineering, UOP, Ca), MSc (Civil/Transportation Engineering, CSUS, Ca)
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55
Publications
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Introduction
Additional affiliations
December 1987 - present
Publications
Publications (55)
Characterising the fracture properties of asphalt mixtures is a critical step toward a better pavement design. This study aims to investigate the mechanical response of asphalt mixtures modified with crumb rubber and plastic waste. These modified mixtures have been introduced in road construction based on the basic understanding of their mechanical...
Asphalt pavements undergo ageing and moisture damage over the service life. The ageing and moisture process resulted in more cracking susceptibility and lowered pavement serviceability. Recently, the semi-circular bending (SCB) test has been widely utilised to characterise the fracture resistance of asphalt mixtures. In this study, the Illinois Fle...
The use of waste polymers for modifying asphalt has remarkable environmental and economic advantages. However, limitation still exists in the resistance of these mixtures against moisture damage and ageing. This paper aims to explore the impact of ageing and moisture damage on the mechanical properties of modified asphalt mixtures with polymer wast...
Asphalt mixtures behave as linear viscoelastic materials when subjected to loading conditions that are similar to pavement operating conditions. Thus, this study proposed a novel method for extracting the linear viscoelastic properties of asphalt mixture at 25°C using digital image correlation and repeated-load semi-circular bending (SCB) test. Dig...
The utilisation of plastic waste as a modifier in asphalt mixtures has inflicted significant impacts on the cracking resistance of the produced mixtures. Whilst many studies have evaluated the cracking resistance of asphalt mixtures incorporating plastic waste using wet method, limited studies have used the dry method are available. The current stu...
Laboratory determination of fatigue characteristics of asphalt mixtures is a vital step in evaluating and designing asphalt pavement. This study aims to provide a comprehensive analysis of the fatigue resistance of the modified asphalt mixtures containing plastic waste and crumb rubber. These dry process-modified mixtures have been presented in the...
The utilisation of plastic waste as a modifier in asphalt mixtures has inflicted significant impacts on the cracking resistance of the produced mixtures. Whilst many studies have evaluated the cracking resistance of asphalt mixtures incorporating plastic waste using wet method, limited studies have used the dry method are available. The current stu...
Fracture energy is critical for crack evaluation and asphalt mixture design. Thus, the fracture mechanics of asphalt materials should be further investigated. Fracture energy is significantly correlated with factors related to mixture design and testing parameters, as shown in prior studies. Mixture design factors include aggregate gradation and as...
Road traffic noise is a significant environmental issue. Porous asphalt is often used to mitigate this problem. However, the clogging issue is one of the main challenges of using porous asphalt. Clogging leads to a significant reduction in permeability and sound absorption as the pavement aged. This study measures the changes in the microstructural...
Short-term ageing is a common issue in bitumen mixing production, and it severely affects the physical, rheological and chemical properties of the bitumen. Polymer modified bitumen is regarded as a preferable paving material to improve the performance of asphalt pavement against binder ageing. One of the additive types used to innovate modified bit...
In the last decade or so, nanomaterials have emerged as the potential solution to greatly enhance the properties of binder with the purpose of improving the performance of asphalt mixture. Due to that, this study evaluates the influence of nano kaolin clay as alternative binder on the penetration properties. The penetration test, penetration index...
Rejuvenating agents are considered desirable options in rejuvenating recycled asphalt's properties. Hence, the capability of integrating waste engine oil (WEO) and maltene to rejuvenate the traits of recycled asphalt was investigated. The penetration, softening point, ductility and viscosity were measured to determine an ideal amount of hybrid reju...
The partial substitution of bio-binder for petroleum asphalt binder is possible in the pavement application. Biomass commonly employed renewable energy origin is normally a raw substance used for the production of bio-binder, which includes palm oil, microalgae, soybean oil, vegetable oil, engine oil residue, grape remains, swine waste and many oth...
The use of reclaimed asphalt pavement (RAP) has been becoming one of the best solutions to preserve natural resources in the construction sector. However, the stiffness property of aged asphalt resulted
from the RAP is considered as the main obstacle in the field application. Nevertheless, waste engine oil (WEO), as one of the most common rejuvenat...
It was typical in Malaysia that pavement failures at high stressed area were due to the bituminous layer aging subjected to extreme long loading times by the slow moving of heavy commercial vehicles. This scenario causes major structural deteriorations and permanent deformation of the bituminous road surfacing. In order to fix this problem, the use...
A moisture damage has been one of the major concerns for HMA pavement by loss of adhesion between bitumen and aggregate surface or loss of the cohesion within asphalt binder due to action of water. Water is the one of major contributor towards the damage of asphalt pavement. The aim of this research is to evaluate the effects of Moisture Damage (MD...
This paper evaluates the performance of using different percentage of styrene-butadiene rubber (SBR) in rapid-setting emulsion (RS-2K). The polymer modified bitumen emulsions were blended at various percentages of SBR, i.e. 5%, 7%, 9%, 11% and 13%. The investigation focused on the optimum percentage of SBR added into the polymer modified bitumen em...
Moving Observer Method (MOM) is one of traffic data collection techniques that being used to collect the traffic flow at the urban roads. However, this technique is sensitive to the normal fluctuation of the traffic flow. Road length, intersection density, and driveway density are three main parameters contributed to the fluctuation of traffic flow...
Hot Mix Asphalt (HMA) is a conventional mixtures and widely used in Malaysia. Emissions of Carbon Dioxide (CO2) during production of HMA due to high temperature give bad impact to the environment. During construction, cool weather is one of the factor that will easily influence the HMA mixtures where it will cause the reduction of temperature durin...
This study aims to examine the effects of wet weather on accident consequence during car-following behaviours. The study analysed drivers’ car-following headway on two-lane highways along passing and no passing zones associated with passenger cars and heavy goods vehicles (HGV). The speed and time gap of more than 200,000 vehicles were recorded dur...
A lot of effort has been made to improve the base bitumen properties by adding different types of modifier. The current issue of pavement failure has raised a concern that high specification of bitumen is essential to counter the asphalt pavement challenges. This is to ensure that the bitumen could perform better as a road material. Natural rubber,...
Natural crushed aggregate (NCA) is the most common material for aggregate throughout the world. The consumption of the NCA itself is rising up through the years. Concrete structures and road construction are some of the most consuming aggregate material, especially NCA. Therefore, aggregate such as recycled concrete aggregate (RCA) has become an al...
This paper describes result of a study on driver’s car following behaviour on Malaysian high-speed highways. Drivers’ car following behaviour can considered as one of the main factors that causes road accidents to occur such as rear end collision between vehicles on highways. The aim of the study was to examine the safe following distance adopted b...
The functional properties and structural properties are very important in order to evaluate and determine the pavements performance. In pavement condition assessment, monitoring and measurement on the functional and structural properties of the pavement are really needed in order to determine the remaining life of the pavement before any rehabilita...
Accidents in Malaysia are alarming and have been in the rise for the past decades. Increasing numbers of road users, condition of road surface, expanded road network and weather conditions are being carefully looked into determining the contributors towards fatality. Human factors has been widely known and established as one of the main contributor...
Poor compaction work is one of the identified causes of road failure and has always been a concern to the asphalt industry. The use of compaction machinery, compaction temperature, weather factor and the type of mixture used could potentially affect the asphalt pavement performance. This study measures the properties of hot mix asphalt (dense-grade...
An accurate determination of industrialized building system (IBS) frames ductility under alternating lateral loads is the key issue of this study. The performance features of IBS H frame assembly subjected to cyclic lateral pushover test with six attached IBS components are reported. A test scheme of nonlinear elastic sub-frame system is proposed t...
Bitumen shortage has triggered the exploration of another alternative waste material that can be blended with conventional bitumen. This study presents the performance of pyrolysis bio-oil from palm oil empty fruit bunch (EFB) as an alternative binder in modified bitumen mixtures. The palm oil EFB was first pyrolyzed using auger pyrolyzer to extrac...
The microstructure properties of asphalt mixtures reflect the structural and functional performance of asphalt mixtures. Thus, numerous imaging methods are developed including destructive and non-destructive methods to uncover the internal structure properties of asphalt mixtures. However, accurate analysis of internal microstructure properties is...
This paper seeks to present the innovative design of the Survey Camp course for the civil engineering program at the Faculty of Civil Engineering, Universiti Teknologi Malaysia. The Survey Camp is designed as a ten day o -campus training which consists of surveying activities such as levelling, traversing and detailing.
It also introduces the usag...
Implementation of Project Based Learning (PtBL) in Universiti Teknologi Malaysia
(UTM) as part of Outcome Based Education (OBE) framework have faced various challenges (i.e
revamp on the undergraduate co-curricullum, required high commitments from academicians &
faculty and facilities to cater PtBL activities). This paper discusses the effectivenes...
Implementation of Project Based Learning (PtBL) in Universiti Teknologi Malaysia (UTM) as part of Outcome Based Education (OBE) framework have faced various challenges (i.e revamp on the undergraduate co-curricullum, required high commitments from academicians & faculty and facilities to cater PtBL activities). This paper discusses the effectivenes...
Porous concrete pavement has been used in some countries as a solution to environmental problems. Contrary to conventional concrete pavement, there is still lack of knowledge in some areas of production and performance of porous concrete pavement. One of the issue concern is curing conditions. These greatly affect the performance of porous concrete...
This paper discusses the results of a study which was carried out with a primary objective to evaluate the merging gaps and traffic delays at midblock U–turn facilities installed on multilane divided highways. A total of more than 2,000 U–turn drivers at a midblock U–turn facility on an urban multilane highway were observed using a camera–video rec...
This paper presents an innovative paver with groove beneath the normal rectangular paver, named as the Underside Shaped Concrete Paver (USCP). A known fact, there is less friction between surface at beneath of paver and bedding sand. Therefore, USCP provide their own grip to bedding sand especially during compaction process. The process of groove d...
Underside Shaped Concrete Block (USCB) has groove shaped at the underside block surface to produce resistance in horizontal plane and to grip onto the bedding sand layer. However, the horizontal movement of block units is the major problem in pavement due to vehicle braking and accelerated action. This paper presents the laboratory evaluation on ve...
This study presents a laboratory evaluation on the properties of crumb rubber modified asphalt mixture using a dry process method in which the fine crumb rubber is added to substitute the aggregates portion and acts as elastic aggregates within the mix. The effect of crumb rubber in the mixture was investigated in terms of the volumetric properties...
Bitumen emulsion is an important building material, especially in highway pavement construction. It is a mixture of bitumen (asphalt), water and emulsifying agent, dispersed in tiny particles in an aqueous medium. It is an important material widely used in the pavement construction ever since the first introduction in the year 1900's. This paper ai...
Stone Mastic Asphalt (SMA) mixtures are designed to have a high coarse aggregate content and stone-on-stone contact, which results in more stress on the coarse aggregates during compaction and traffic loading. As a result, aggregates tend to break down more in SMA mixtures than in conventional dense graded mixtures. Aggregate degradation during com...
Road safety is a global crisis and one of the proactive preventive measures for accidents is the Road Safety Audit (RSA). The benefits of RSA are numerous. RSAs have been practiced in many countries following the guidelines of their own. The objective of this study was to compare the contents of the guidelines of selected seven (07) countries. The...
Fine Aggregate Angularity (FAA) has been identified as one of the important aggregate properties contributing to the stability of Hot Mix Asphalt (HMA) and its resistance against permanent deformation. The performance of dense graded asphalt mixture is significantly influenced by the shape, angularity and surface texture of fine aggregates. This st...
In recent years, some of the commonly used indicators in parking management have changed. Maximizing the supply and minimizing the price were the main objectives before, but today, optimizing the parking supply and price is the major objective. This research introduces a parking area level of service, which has not been previously addressed, to eva...
The aim of this study was to investigate the permanent deformation of Concrete Block Pavement (CBP) with the underside surface grooved. Permanent deformation is one of the important factors that influence pavement performance and often happens due to increases in axle load and tire pressure. Such increments have also resulted in greater increment o...
Excessive permanent deformation or rutting have become more of a concern of pavement performance. A new Concrete Block Pavement (CBP) was developed with groove shaped at underside block surface to assess the pavement response and performance. There are three category and thirteen Underside Shaped Concrete Blocks (USCBs) pattern were developed. A se...
Excessive permanent deformation or rutting have become more of a concern of pavement performance. A new Concrete Block Pavement (CBP) was developed with groove shaped at underside block surface to assess the pavement response and performance. There are three category and thirteen Underside Shaped Concrete Blocks (USCBs) pattern were developed. A se...
Underside Shaped Concrete Block (USCB) is a new shaped block concept of Concrete Block Pavement (CBP) for road surface layer to enhance the road construction development. The USCB concept utilizes groove patterns to grip and produce resistance to the underside surface of block units onto the sand bedding layer. A laboratory scale test was conducted...
Underside Shaped Concrete Block (USCB) has groove patterns at the underside
block surface to produce resistance in horizontal plane and to grip onto the bedding sand layer.
A pavement laboratory test was conducted to investigate the interaction between USCBs and
bedding sand after compaction and applied load. Three types of USCB were used in the
ex...
Underside Shaped Concrete Block (USCB) is a new shaped block concept of Concrete Block Pavement (CBP) for road surface layer to enhance the road construction development. The USCB concept utilizes groove patterns to grip and produce resistance to the underside surface of block units onto the sand bedding layer. A laboratory scale test was conducted...
This report describes research to investigate drivers' behaviour on rural single carriageway roads. The study was carried out with the scope aiming at deriving the distance separation between impeded vehicles on single carriageway roads. Empirical models were developed to describe the driver's car-following distance at various operating speeds. Dat...
Observation at midblock signalled pedestrian crossings in Malaysia showed thatviolation of the red signal aspect by both the motorists and pedestrians is close to70 %. Motorists may travel on the red signal aspect when there is no pedestrianon the crossing. Pedestrians are also observed to cross in vehicle gaps at thecrossings during the right of w...
Design and construction of some civil engineering structures require input parameters that are related to Geology and Rock Mechanics (Rock Engineering). Thus, these subjects form an essential part of civil engineering curricula. However, limited contact hour on these subjects warrants an additional learning program for students to widen their knowl...