Mohamed Arab

Mohamed Arab
University of Sharjah | US · Department of Civil and Environmental Engineering

Doctor of Philosophy

About

65
Publications
19,100
Reads
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363
Citations
Additional affiliations
January 2021 - present
University of Sharjah
Position
  • Professor (Associate)
November 2018 - present
Mansoura University
Position
  • Professor (Associate)
February 2017 - January 2021
University of Sharjah
Position
  • Professor (Assistant)

Publications

Publications (65)
Article
Full-text available
Integrating sustainability goals into the selection of suitable soil stabilization techniques is a global trend. Several bio-inspired and bio-mediated soil stabilization techniques have been recently investigated as sustainable alternatives for traditional techniques known for their high carbon footprint. Enzyme Induced Carbonate Precipitation (EIC...
Conference Paper
In this study, the potential of using macro-synthetic fibers along with EICP-treated sands was investigated. The following conclusions can be drawn: - Lightly fiber reinforcement of EICP treated sand resulted in a reduction in treated sand compressive strength and secant modulus compared to control EICP treated sand. This reduction may be attribut...
Conference Paper
Shrinkage limit can be used to estimate other critical factors such as shrinkage ratio, shrinkage index and volumetric shrinkage. Experimental determination of shrinkage limit used to be performed following ASTM D427-04, and BSI 1377-2:1990:6.3, however, both standards were withdrawn without replacement due to the hazardousness of mercury used in t...
Article
Full-text available
The global construction industry consumes huge amounts of mined materials that are considered unsustainable for earth resources. In addition, Portland cement which is a key element in concrete and most construction materials is considered one of the main contributors to worldwide CO2 emissions. On the other hand, natural cemented soil deposits are...
Article
Testing using a Dynamic Shear Rheometer (DSR) and rheological analysis were conducted to analyse the detachment behaviour of bio-cemented soil at a microstructural level. Preventing detachment of soil particles from the ground surface is the key to mitigating the generation of fugitive dust due to wind-blown soil, a significant environmental proble...
Article
Full-text available
Urbanization and development in arid and semiarid have brought increased interest in the improvement of water sensitive soils susceptible to volume change. This investigating aims to study the possibility of using fibers along cement to improve the mechanical properties of collapsible soil and hence improve cement-treated soil behavior. The testing...
Article
This paper presents a technique of reducing permeability through sand using a biologically inspired process. The effect of Enzyme-Induced Carbonate Precipitation (EICP) and biopolymer (sodium alginate and guar gum) on the permeability of silica sand was investigated. The effect of the number of EICP treatment cycles and seawater on the permeability...
Preprint
Full-text available
Integrating sustainability goals into the selection of suitable ground improvement techniques is a global trend. Several bio-inspired and bio-mediated ground improvement techniques have been recently investigated as sustainable alternatives for traditional ground improvement techniques known for their high carbon footprint. Enzyme Induced Carbonate...
Article
The use of alkali-activated binders (AAB) with industrial waste materials such as fly ash (FA) and ground granulated blast-furnace slag (GGBFS) as precursors for ground improvement has recently gained popularity as an alternative to Portland cement. This study assesses the life cycle environmental impacts of AABs, after scaling up the process from...
Article
Protecting existing utility lines in congested urban centers is considered a major challenge especially in cases of new construction bridging over these lifelines. Several innovative techniques have been proposed lately to bridge over existing pipes. This study discusses the use of stiff three-dimensional geogrids to reinforce sandy soils bridging...
Article
Punching shear capacity is an important parameter in designing structural elements. Accurate estimation of punching shear capacity typically requires rigorous calculation schemes. Especially for fiber-reinforced slabs, traditional design methods may not be sufficient to predict the interaction between different influencing parameters affecting punc...
Article
This study investigated the process of bio cementation using enzyme-induced carbonate precipitation (EICP) and sodium alginate biopolymer to produce bio-bricks for the use in the construction industry. This approach has the potential to provide an alternative to cement and fired clay bricks, especially in countries where sand is abundant. The mecha...
Article
Enzyme-induced carbonate precipitation (EICP) has been described as a bioinspired solution for ameliorating the mechanical properties of soil by precipitating calcium carbonate to bond sand particles. This study investigates the use of EICP utilizing a cost-effective jack bean meal as a source of enzyme to cement sand. Three different EICP cementin...
Article
Dust control and air quality are major environmental concerns, especially in arid regions. Several techniques have been developed in the past to control dust; however, several weaknesses of these techniques, including being short term, having a high cost, and toxicity in several cases, have been reported. This paper investigates the use of agricult...
Article
The study presented in this paper assesses and compares the laboratory fatigue performance of two gap-graded asphalt concrete (AC) mixture: one using crumb rubber (CR) (rubber-modified) and without using CR (conventional). The rubber-modified and conventional gap-graded mixtures were sampled from the E18 highway located in the Stockholm area of Swe...
Article
Full-text available
Drilling and installation of deep foundations typically alter and affect surrounding soils and subsequently affect the adjacent structures. Possible effects on the adjacent structures due to the installation of driven piles have been thoroughly investigated in the literature. However, little attention has been given to other pile installation techn...
Article
The characteristics of the unbound base layer have been recognized to influence the performance of flexible pavements to wide extents depending on climate conditions, construction quality, material source, traffic level, and pavement structure. Recently, unsaturated soil modeling has become generally accepted in predicting the pavement performance...
Article
Full-text available
The aim of the present study was to establish a national database of waste characteristics for Egypt to support the assessment of various waste management strategies. The study explored the potential of applying waste-to-energy (WTE) systems to alleviate the negative environmental impacts of waste disposal while providing a renewable source of ener...
Article
Enzyme-induced carbonate precipitation (EICP) has attracted increasing attention as a bio-inspired technique that can be employed in-situ for ground improvement. One of the obstacles to the widespread use of this technique is the lack of data on natural soils treated using EICP compared to soils treated using conventional methods such as ordinary P...
Article
Full-text available
A study was conducted to stabilize An Nafud desert sand against wind-induced erosion employing enzyme-induced carbonate precipitation (EICP) assisted by a sodium alginate (SA) biopolymer. Biopolymers occur naturally in brown seaweed, are inexpensive, and are used extensively in the food, textile, and paper industries as thickeners and emulsifiers....
Conference Paper
Full-text available
Bio-inspired improvement of soils via enzyme induced carbonate precipitation (EICP) has attracted increasing attention over the past decade. EICP employs the hydrolysis of urea (ureolysis), a process catalyzed by the urease enzyme, to precipitate calcium carbonate (CaCO3) in the presence of calcium ions. This paper describes a preliminary experimen...
Conference Paper
Numerous engineering designs were inspired from nature. Recent researchers have used 3D printing technology to optimize soil reinforcement. In this research, a bio-inspired geogrid shape, from the concept of honeycomb structure was investigated and compared with conventional commercial geogrid. 3D printing technology was used to investigate the fea...
Chapter
Full-text available
Urbanization growth in the world in past two decades are considered a challenge in terms of supplying required construction building materials needed for this development. Bricks are an important construction material that consumes energy, aggregates and cement during their manufacturing. Cement, widely used binder to manufacture brick, is responsi...
Article
A technique to predict the response of laterally loaded battered piles in sandy soils is developed based on soil–pile interaction. The proposed method employs the concepts of the strain wedge (SW) model, which were originally developed for laterally loaded vertical piles. Unlike current practices that use a multiplier for the p–y curve of the verti...
Article
Full-text available
Prediction of allowable bearing capacity of granular soil requires an intensive field investigation program. This research proposes empirical correlations to predict the allowable bearing capacity and elastic settlement of shallow foundation on granular soils. The current correlation using only standard penetration blow count number and soil unit w...
Conference Paper
Full-text available
The increasing in development and population, have made using of shallow buried pipelines inevitable in highways, subways, and urban areas. In this paper the behavior and the response of shallow Polyvinyl chloride (PVC) pipes buried in geogrid reinforced sand under static loads was investigated. Three series of large-scale laboratory experiments we...
Poster
Full-text available
A bio-inspired honeycomb shape module was printed through 3D technology to be utilized in the wind tunnel device in order to simulate a laminar flow of wind over the tested sample.
Article
Natural weak cohesive subgrade soils are considered low quality foundations for pavement structures that may lead to significant pavement distresses. Several solutions can be proposed to enhance pavement behavior under cyclic loads such as stabilizing clays with cement or lime, removing and replacing weak material, or increasing the base thickness...
Article
Bituminous binders have significant effect on the overall performance of the asphalt mixtures, although binders are not the main component of the asphalt mixture (4–6% by weight). This paper presents an overview of research efforts undertaken to evaluate the sensitivity of asphalt mixture performance to the change of the binder suppliers in the Sta...
Chapter
Seismic hazard and geotechnical microzonation maps of urban communities make it conceivable to describe potential seismic zones that should be considered when planning new structures or retrofitting existing ones. This study looked at a local site-specific ground response analysis, which is an important step in estimating the effects of earthquakes...
Article
Full-text available
An essential task in the process of construction is the determination of compaction properties of soils. Many years of laboratory test experience strengthen our belief in the existence of predictive equations that govern the compaction characteristics of soils. An advanced mathematical model developed in this research in order to uncertain the gove...
Article
Natural weak cohesive subgrade soils are considered low quality foundations for pavement structures that may lead to significant pavement distresses. Several solutions can be proposed to enhance pavement behavior under cyclic loads such as stabilizing clays with cement or lime, removing and replacing weak material, or increasing the base thickness...
Article
Full-text available
In geotechnical engineering, soil compaction is the practice in which a stress applied to a soil causes densification as air is displaced from the pores between the soil grains. Soil compaction is a vital part of the construction process. This paper describes advanced mathematical models and an innovative solution to predict the compaction properti...
Conference Paper
Continuous flight auger (CFA) piling technique has gained popularity in inner urban areas of Egypt due to its economical, low-vibration, and quick features compared to other pile drilling techniques. A CFA pile installation rate of 15 piles per day per auger rig can be reached in favorable soil conditions. However, several researchers have describe...
Article
A numerical model for performance-based design of the geosynthetic elements of waste containment systems has been developed. The model offers a rational alternative to the current state of practice for design of geosynthetic containment system elements in which neither the strains nor the forces in liner system elements are explicitly calculated. T...
Conference Paper
Full-text available
Mechanistic Empirical (ME) pavement design methods started to gain attention especially the last couple of years in Egypt and the Middle East. One of the challenges facing the spread of these methods in Egypt is lack of advanced properties of local soil and asphalt, which are needed as input data in ME design. Resilient modulus (Mr) for example is...
Article
Full-text available
Geogrids have been increasingly used as soil improvement technique over the past decade. This increasing trend is attributed to its ease of application and low cost compared to other improvement techniques. This paper provides a review of the published results related to the ultimate and allowable bearing capacities of shallow foundations on geo-gr...
Article
Full-text available
Mechanistic Empirical (ME) pavement design methods started to gain attention especially the last couple of years in Egypt and the Middle East. One of the challenges facing the spread of these methods in Egypt is lack of advanced properties of local soil and asphalt, which are needed as input data in ME design. Resilient modulus (Mr) for example is...
Book
This Geotechnical Special Publication (GSP) contains 20 papers that were accepted and presented at the GeoChina 2016 International Conference on Sustainable Civil Infrastructures: Innovative Technologies for Severe Weathers and Climate Changes. The conference was held in in Shandong, China in July 25-27, 2016. The conference provided a showcase for...
Article
Full-text available
Several bored pile field-testing observations showed the arching phenomena and its effect on side shear resistance. Finite element numerical model is developed in this paper to study the arching phenomena of bored pile and the effect on the overall compression capacity of single board piles. The numerical models developed apply a hardening/softenin...
Conference Paper
Several bored pile field-testing observations showed the arching phenomena and its effect on side shear resistance. Finite elements numerical model is developed in this paper to study the arching phenomena of bored pile and the effect on the overall compression capacity of single board piles. The numerical models developed apply a hardening/softeni...
Conference Paper
Full-text available
Mechanistic Pavement design methods started to gain popularity the last few years in Egypt. One of the challenges facing the spread of these method is absence of accurate measurements for the engineering properties used in this methods for the Egyptian soils and asphalt. Resilient modulus (Mr) is an important engineering parameter for mechanistic p...
Conference Paper
Full-text available
A performance-based methodology for seismic analysis and design of the geosynthetic elements of waste containment systems, including landfills and heap leach pads, has been developed. The methodology offers a rational alternative to the current state of practice for seismic design of geosynthetic containment system elements in which a decoupled New...
Conference Paper
A strain-softening constitutive model has been developed to model the internal shear load-deformation behavior of a hydrated, nonwoven fabric encapsulated and needlepunch reinforced geosynthetic clay liner (GCL) for use in performance-based design of geosynthetic barriers for waste containment. The softening formulation is based on a multiple yield...
Conference Paper
Full-text available
Analyses of the performance of the Chiquita Canyon and Lopez Canyon landfills in the 1994 Magnitude 6.7 Northridge earthquake illustrate deficiencies in the current state-of-practice for seismic design of geosynthetic liner systems and the promise of a new state-of-the-art method for performance-based design, and suggest necessary modifications to...
Conference Paper
Full-text available
A performance-based methodology for seismic analysis and design of the geosynthetic elements of waste containment systems, including landfills and heap leach pads, has been developed. The methodology offers a rational alternative to the current state of practice for seismic design of geosynthetic containment system elements in which a decoupled New...
Conference Paper
Full-text available
Two-dimensional (2-D) non-linear time-domain analyses of the tensile forces and strains induced in the geosynthetic liner system of a solid waste landfill by seismic loading were conducted using a model that allows for relative displacement (slip) at the interfaces of the liner system. The analyses suggest that tensile strains and forces induced in...
Conference Paper
Full-text available
One-dimensional (1-D) and two-dimensional (2-D) analyses of the seismic response of a geosynthetic-lined heap leach pad were conducted using models that account for relative displacement (slip) between the liner system and the ore mass. The 1-D analyses included equivalent linear and non-linear analyses. The equivalent linear analyses used the reco...