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Volume 11 (2018)
Volume 10 (2017)
Volume 9 (2016)
Volume 8 (2015)
Volume 7 (2014)
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Al-Qadisiyah Journal for Engineering Sciences (QJES), E-ISSN: (2411-7773) ,  P-ISSN: (1998-4456), was established in 2008. The Journal, in its current form, is intended to contribute to the state of the art in all fields of engineering research. The Journal is a peer-reviewed journal and is published by The University of Al-Qadisiyah , the college of Engineering, . The journal is now published Quarterly (March, June, September and December).
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List of the academic editors of Al-Qadisiyah Journal for Engineering Sciences (QJES) for the period from January 2024 to the present

Khaled Al-Farhany; Ali Fahem

Volume 17, Issue 1 , March 2024, Pages 1-4

https://doi.org/10.30772/qjes.2024.182126

Abstract
  Al-Qadisiyah Journal for Engineering Sciences (QJES), E-ISSN: (2411-7773), P-ISSN: (1998-4456), was established in 2008. The Journal, in its current form, is intended to contribute to the state of the art in all engineering research fields. The Journal is a peer-reviewed journal published by The University ...  Read More

Enhance watershed algorithms using principal component analysis capabilities

Ahmed F Mohamed; Fayez Wanis Zaki Soliman; Mohamed Mahmoud Ashour

Volume 17, Issue 1 , March 2024, Pages 5-15

https://doi.org/10.30772/qjes.2024.145116.1055

Abstract
  Traditional image segmentation algorithms have many drawbacks, such as over-segmentation and image distortion due to reflected light. The Watershed algorithm is one of the most popular image segmentation algorithms. Over-segmentation errors caused by overlapping targets in the image, as well as noise ...  Read More

Experimental investigation of perforated multi-layered composite armor subjected to ballistic impact

Muhanad Mosa; Ali Fahem; Achyuth Thumbalam Guthai

Volume 17, Issue 1 , March 2024, Pages 16-21

https://doi.org/10.30772/qjes.2024.146005.1083

Abstract
  Ballistic protection of vehicles has become an important endeavor, as it is concerned with how occupants can possess a comfortable feeling together with a high level of protection during a shooting incident. In recent years, numerous forms of armor have employed several kinds of distinct materials to ...  Read More

Using the golden ratio in detecting the aesthetics of Mosque facades: The case of contemporary Mosques in Erbil city

Saya Jamal Rashid; Faris Ali Mustafa; Faten Radhwan Yaseen

Volume 17, Issue 1 , March 2024, Pages 22-28

https://doi.org/10.30772/qjes.2023.141688.1007

Abstract
  From ancient Greece till the present, the golden ratio has been considered one of the most significant criteria of beauty in art and architecture. Architectural forms are part of the visual language that is bound by the rules of geometry and proportion. This study aims to identify the extent to which ...  Read More

The influence of micro-channel shape filled by nanofluid on heat transfer characteristics: Numerical and experimental study

Abbas Natheer Tuaima; Ahmed J. Shkarah; Mohammed D. Salman

Volume 17, Issue 1 , March 2024, Pages 29-37

https://doi.org/10.30772/qjes.2023.143746.1039

Abstract
  The integration of nanofluid effects and channel shape effects in a heat sink, which exhibits both variable and constant cross-section, has gained significant traction as an efficient cooling method for thermal devices, particularly microelectronic devices. This research presents an experimental and ...  Read More

Improving the mechanical behavior of pervious concrete using polypropylene and waste rope fibers

S. Z. Abeer; Shereen Qasim Abdulridha; Mohammad Salah Nasr; Zaid Ali Hasan; Ali Shubbar

Volume 17, Issue 1 , March 2024, Pages 38-46

https://doi.org/10.30772/qjes.2024.146598.1114

Abstract
  Urbanization has led to the damage of infrastructure due to floods and water accumulation on roads and sidewalks. To address this problem, pervious concrete was designed to drain water smoothly. However, pervious concrete has certain drawbacks, such as brittleness and poor tensile strength. To overcome ...  Read More

Effect of flame retardants and 1% stabiliser on thermal decomposition and physics properties of thermoplastic polymer due to TGA and DTA tests

Mastura A. Abdalshafie Efhema

Volume 17, Issue 1 , March 2024, Pages 47-57

https://doi.org/10.30772/qjes.2024.144148.1045

Abstract
  This work introduces seven various polymer samples blended in a twin-screw extruder with flame retardants (FR), and an additive, which is a 1% Stabiliser, to investigate thermoplastic polymer melting, thermal decomposition, and melting moderates. The reduction method is used to analyze its melting points, ...  Read More

Evaluation of Residential Density of Single-Family Housing in Erbil Housing/Investment Projects

Beri Mustafa Ghafour; Mand Ibrahim Aziz

Volume 17, Issue 1 , March 2024, Pages 58-65

https://doi.org/10.30772/qjes.2023.142139.1014

Abstract
  Density, as a spatial concept, can be used to predict and manage how land is used. It also plays a role in determining how much capacity is present within a given area. Due to the rapidly growing population in the Kurdistan region, one of the major issues is housing. Over the past ten years, the Kurdistan ...  Read More

Investigation of an automobile air-conditioner with a liquid-suction heat exchanger using R134a and R1234yf

Ansam Akeel Mohammed; Wail S. Sarsam

Volume 17, Issue 1 , March 2024, Pages 66-76

https://doi.org/10.30772/qjes.2023.143262.1030

Abstract
  Air-conditioning systems (ACs) are essential in hot and humid climates to ensure acceptable ambient air quality as well as thermal comfort for buildings users. It is essential to improve refrigeration system performance without increasing the effects of global warming potential (GWP) and ozone depletion ...  Read More

Thermal analysis of an integrated solar combined cycle power plant and its application in southern Iraq

Rahmah Luqman Ibrahim; Abdulrahman Habbo Mohammed

Volume 17, Issue 1 , March 2024, Pages 77-82

https://doi.org/10.30772/qjes.2023.143607.1036

Abstract
  Recently, simple cycle play a significant role in electric power production in Iraq. However, those units suffer from low thermal efficiency and low power output. In the present work, theoretical study is carried out aiming to improve the performance of (AL-Amara station 125MW). The present work includes ...  Read More

Improving the efficiency of the automobile engine cooling system using hybrid MWCNT/Al2O3 as nanofluids

Ahmed A. Mohammed; H. I. Dawood; Helen N. Onyeaka

Volume 17, Issue 1 , March 2024, Pages 83-87

https://doi.org/10.30772/qjes.2023.144421.1047

Abstract
  The aim of this research was to increase the engine car efficiency by adding an innovative material called hybrid MWCNT/Al2O3 nanofluids. A volume ratio instance for investigations is 0.05 MWCNT mixed with 0.05 Al2O3 in distilled water (DW). The experimental temperature setup was in the range from 50 ...  Read More

The column in Arabic Islamic Architecture(Analysis Study for Dimensions and Connotations)

Dr. Mahdi Saleh Alfaraj Al- Ataabi

Volume 7, Issue 2 , June 2014, , Pages 41-72

Abstract
  The column is considered as a support rooted in the ground and forms the part responsible for connecting the upper and lower level. It is a dialectic duality to provide the space with its required qualities .It is a base to support what lies above it and forms a poetic vision which hypothetically give ...  Read More

Corrosion inhibition performance of 2- Fluorophenyl-2, 5-dithiohydrazodicarbonamide for copper in 3.5%NaCl Media: Experimental and Monte Carlo insights

Mothana Ghazi Kadhim AlFalah; Murat Saracoglu; Mehmet Izzettin Yilmazer; Fatma Kandemirli

Volume 16, Issue 3 , September 2023, , Pages 150-159

https://doi.org/10.30772/qjes.2023.178995

Abstract
  Most industries struggle with corrosion. Corrosion inhibitors are needed in these sectors. Eco-friendly corrosion inhibitors should be effective even at low concentrations. In this work, the compound 2- Fluorophenyl-2, 5- dithiohydrazodicarbonamide (2F-TSC) was utilized as a corrosion inhibitor for copper ...  Read More

Investigation of heat transfer characteristics of Al2O3-water nanofluid in a coiled agitated vessel across varied operating conditions

Uday M. Basheer Al-Naib

Volume 16, Issue 3 , September 2023, , Pages 145-149

https://doi.org/10.30772/qjes.2023.178993

Abstract
  This study aimed to investigate the heat transfer behavior of an Al2O3-water nanofluid within a coil-agitated tank. The experiment utilized Al2O3-water nanofluids with varying volume concentrations, namely 0.2 vol%, 0.3 vol%, and 0.4 vol%. Two different cooling water flow rates, specifically 1.8 and ...  Read More

Effects of fin on mixed convection heat transfer in a vented square cavity: A numerical study

Mohammed Abu Ghurban; Khaled Al-Farhany; Kada Benhanifia

Volume 16, Issue 3 , September 2023, , Pages 200-208

https://doi.org/10.30772/qjes.2023.142305.1016

Abstract
  Numerical investigation of mixed convective in a vented square cavity with fin. The horizontal walls are adiabatic, while the left and right walls are at hot and cold temperatures, respectively. The fluid inlet to the cavity from the lower left open area, and exit from the upper right open area. In this ...  Read More

Blockchain Fog-based scheme for identity authentication in smart building

Alexander A. Varfolomeev; Liwa H. Al-Farhani

Volume 16, Issue 3 , September 2023, , Pages 218-227

https://doi.org/10.30772/qjes.1999.180617

Abstract
  This paper presents a proposal for an authentication scheme for smart building systems and environments based on blockchain, its positive features, and fog computing. The most important feature that can be distinguished in the submitted proposal is its adoption of the principle of decentralization in ...  Read More

Structural classification of planetary-gear-cam mechanisms

Farah Saoud; Sajad Hussein Abdali; Essam Esmail

Articles in Press, Accepted Manuscript, Available Online from 01 January 2024

https://doi.org/10.30772/qjes.2023.142157.1015

Abstract
  Planetary gear-cam mechanisms (PGCMs) are mechanisms that combine planetary gears and cams. Despite the fact that these systems have the ability to achieve a wide variety of periodic motions of the output link, they have received little attention. To generate and classify PGCMs, structural properties ...  Read More

Suitable landfill site selection for Al-Diwaniyah city using a geographic information system

Mukhalad Muayada; Hussein Jannaa

Articles in Press, Accepted Manuscript, Available Online from 01 January 2024

https://doi.org/10.30772/qjes.2024.182155

Abstract
  One of the main problems in the city of Diwaniyah is finding suitable places for burying waste. Geographic Information System (GIS) is an appropriate tool used for this purpose. The city of Diwaniyah, like other Iraqi governorates, is not equipped with an organized system for burying urban waste. The ...  Read More

Interface Shapes and Flow Behaviour in Duct Systems under Critical and Sub-Critical Flow Conditions

Manar A. Abdulrahman; Suha I. S. Al-Ali; Mohammed Nsaif Abbas

Articles in Press, Accepted Manuscript, Available Online from 01 January 2024

https://doi.org/10.30772/qjes.2023.143635.1037

Abstract
  This article delves into the intricate dynamics of groundwater flow within duct systems, ‎examining both critical and sub-critical flow conditions. Employing mathematical models, ‎sophisticated potential methodologies, numerical simulations, and flow net analysis, the ‎research investigates ...  Read More

Heat transfer augmentation by using different techniques in small scale channels: A review study

Naseer Hamza; Haider A. Abdul kazem

Articles in Press, Accepted Manuscript, Available Online from 30 August 2023

https://doi.org/10.30772/qjes.2023.141640.1005

Abstract
  In this paper highlights the most significant recent developments in scientific study on Heat sinks are thermal management components made of materials with sufficient thermal conductivity qualities. Due to the increase in operating power and speed as well as the general reduction in system size, the ...  Read More

A graph-based method for detecting isomorphism of geared kinematic chains using a circuit matrix and vertex degree array

Sajad Hussein Abdali; Farah Mohammed Saoud; Essam Esmail

Articles in Press, Accepted Manuscript, Available Online from 12 January 2024

https://doi.org/10.30772/qjes.2023.142060.1010

Abstract
  Several approaches for detecting isomorphism in kinematic chains have been developed in recent literature. If two kinematic chains have a 1-1 correspondence and their incidences are maintained, they are isomorphic. In this work, a matrix-based method for identifying isomorphism is presented. The new ...  Read More

A review of modelling and inspection techniques in micro/nanoscales of dry friction of rough surfaces

Muhammed Abdulhasan Muhammed; Nabeel Almuramady

Articles in Press, Accepted Manuscript, Available Online from 30 December 2023

https://doi.org/10.30772/qjes.2023.141737.1008

Abstract
  In reality, there are a number of tiny contact asperities on the contact surface, which may be seen at the micro/ nano scales. The total mechanical behavior is the product of all asperities that are involved during the contact. There are still a lot of unresolved issues in the study of contact and dry ...  Read More

A critical review of forced convection in microchannels

Ahmed Ali Shakir Al-Saadi

Articles in Press, Accepted Manuscript, Available Online from 30 January 2024

https://doi.org/10.30772/qjes.2023.141506.1003

Abstract
  The dissipation of excessive heat flux is presently a significant issue that needs to be addressed due to the use of microdevices in fields such as nuclear energy, electronic devices, aerospace engineering, building engineering, and more. Because their increased heat transfer and compact size, microchannel ...  Read More

Criteria and indicators affecting the most appropriate reuse of heritage buildings in old cities: Mosul old city as a case study

Suroor Jasim; Emad Hani Ismaeel

Articles in Press, Accepted Manuscript, Available Online from 03 January 2024

https://doi.org/10.30772/qjes.2023.141934.1009

Abstract
  For the protection of historic city identity and providing a sustainable benefit to its buildings,the strategy of conserving heritage buildings in old cities through their reuse is complex and crucial.The most appropriate mechanism for reuse is the most widely used mechanism for preserving and enhancing ...  Read More

Post occupancy evaluation of private open spaces in dwelling units in single family investment housing projects in Erbil city

Shayan Shero Ahmed; Mand Ibrahim Dizayee

Articles in Press, Accepted Manuscript, Available Online from 23 October 2023

https://doi.org/10.30772/qjes.2023.141738.1011

Abstract
  Due to urbanization, it has been found that public open spaces shared in the city is not maintained in many cases, as new investments are trying to get use of the land to construct more buildings, same tendency has been noticed with residential estates. The treatment for the shortages of public open ...  Read More

A review of passive and active techniques for backward-facing step

ghaidaa kareem rahi; Dhafer Abdul Amir Hamzah

Articles in Press, Accepted Manuscript, Available Online from 27 September 2023

https://doi.org/10.30772/qjes.2023.142416.1019

Abstract
  This study reveals the increase in heat transfer using passive and active techniques for BFS. Backward- facing step (BFS) flow is one example of a representative model for separation flows which has been noted in its applications in engine flows, vehicles, condensers, heat transfer systems, and flow ...  Read More

The Knowledge Content of Digital Design Subject in Architecture Schools

Sarraa B. Younis; Dhuha A. Al-kazzaz

Articles in Press, Accepted Manuscript, Available Online from 13 October 2023

https://doi.org/10.30772/qjes.2023.143373.1031

Abstract
  The emergence and spread of digital technology in architectural design and professional practice has resulted in a restructuring of architectural education. Different approaches have emerged to integrate digital design into architectural curricula. This paper aims to identify accredited digital design ...  Read More

A study of biodiesel production from waste cooking oil and its impact on diesel exhaust emissions with alcohol blends

ALi sadoon mohmmad

Articles in Press, Accepted Manuscript, Available Online from 29 November 2023

https://doi.org/10.30772/qjes.2023.143424.1032

Abstract
  Fuels based on petroleum have been used for many years. However, as the world strives to protect the environment, clean and renewable energy is becoming more sought after. Diesel fuel can be replaced with biodiesel and alcohol. One of the advantages of these fuels is that they are renewable and locally ...  Read More

Hydrodeoxygenation of linoleic acid using water as hydrogen source on Co/HB zeolite

Fouz D Alqazweeny; Ali A. Jazie

Articles in Press, Accepted Manuscript, Available Online from 02 September 2023

https://doi.org/10.30772/qjes.2023.143941.1042

Abstract
  Hydrodeoxygenation (HDO) is a critical step in upgrading biomass-derived feed-stocks to renewable fuels and valuable chemicals. Thus, we preserve the environment through the use of agricultural waste. Water plays the role of solvent, reactant, or byproduct in biomass HDO reactions catalyzed by Co/HB ...  Read More

NiTa Superalloy Study for Its Importance in Modern Applications: A Review

qasim Abbas shammari

Articles in Press, Accepted Manuscript, Available Online from 09 December 2023

https://doi.org/10.30772/qjes.2023.142744.1022

Abstract
  Stoichiometric (NiTa) superalloys have lately acquired acceptability as an alternative to traditional current-generation alloys for applications requiring biomaterials. This is because to the high melting points and corrosion resistance of Ni and Ta. Nickel-based superalloys are highly prized in particular ...  Read More

Investigation of the effects of hybrid nanofillers on properties of PMMA composites compared to natural nano powder addition

maha kareem; Abbas Khalaf Mohammad

Articles in Press, Accepted Manuscript, Available Online from 09 December 2023

https://doi.org/10.30772/qjes.2023.143967.1043

Abstract
  PMMA (poly methyl methacrylate), a well-known polymer of the methacrylate family, is widely utilized in biomedicine, particularly in odonatological applications like artificial teeth, dentures and denture bases, obturators, provisional or permanent crowns, and so on. The outstanding qualities of PMMA, ...  Read More

Evidence-Based Design: The Role of Outpatient Design Elements on Medical Staff Satisfaction and Performance in a Post-COVID-19 Pandemic

Fouad Jalal Mahmood

Articles in Press, Accepted Manuscript, Available Online from 18 December 2023

https://doi.org/10.30772/qjes.2023.144869.1051

Abstract
  Contemporary hospitals may be recognized by a large variety of activities, not only delivery of care but also some concerns, such as the satisfaction level of users. This research investigates the relationship between outpatient department (OPD) design elements and medical staff satisfaction and performance, ...  Read More

Study the impact of using chitosan for removing methyl orange dye from synthetic wastewater

Reem Ihsan Abdul Hadi; Abbas Kh. Mohammad

Articles in Press, Accepted Manuscript, Available Online from 27 January 2024

https://doi.org/10.30772/qjes.2023.144155.1044

Abstract
  The primary objective of this study is to investigate the effectiveness of chitosan powder as an adsorbent for treating industrial wastewater contaminated with methyl orange. Chitosan is generally known in many academic fields and is readily available at a reasonable cost. Chitosan is a biopolymer derived ...  Read More

Numerical study on the influence of louver design on VRF system thermal performance in enclosed spaces in Erbil city

Kawa Abdulghany Abdullah; Ramzi Raphael Ibraheem Barwari

Articles in Press, Accepted Manuscript, Available Online from 13 January 2024

https://doi.org/10.30772/qjes.2024.144970.1053

Abstract
  Variable Refrigerant Flow (VRF) systems are extensively employed for space heating and cooling, particularly in multi-story buildings where outdoor units are discreetly placed behind aluminum louvers for architectural considerations. However, these metal louvers can hinder ventilation and heat rejection ...  Read More

Efficient load balancer for local internet service providers based on operation research

Tariq M. Salman; Maher K. Mahmood Al-Azawi; Viktar Tsviatkou

Articles in Press, Accepted Manuscript, Available Online from 15 January 2024

https://doi.org/10.30772/qjes.2024.146016.1084

Abstract
  Load balancing in internet services acts as a reverse proxy to distribute network bandwidth or application traffic across a number of servers. The decrease of internet route cost calculated from the distance, number of hops, bandwidth capacity, equipment maintenance, power consumption ...etc. is needed ...  Read More

An Improved Throttling Algorithm for Fog Computing Networks with an Additional Management Layer

Turkan Ahmed Khaleel; Omar Anwer Nafea

Articles in Press, Accepted Manuscript, Available Online from 26 February 2024

https://doi.org/10.30772/qjes.2024.146104.1089

Abstract
  An emerging networking technique called fog computing extends cloud computing capabilities to the edge network's borders. It is employed to get around the limitations of cloud computing, like latency and bandwidth problems. Fog computing is suitable for IoT systems and applications that require ...  Read More

Literature review on the evaluation of prestressed concrete box girder bridge deflection and external prestressing strengthening

zaid sabah hamdi aldarib; Abeer Alkraway

Articles in Press, Accepted Manuscript, Available Online from 28 February 2024

https://doi.org/10.30772/qjes.2024.145033.1056

Abstract
  A bridge is one of the most important structures of man-made construction intended to enable passage across a gap, such as a river, valley, intersection, etc. The bridges can be provided for many purposes, such as facilitating water movement, individuals, vehicles, and railroads. The selection of the ...  Read More

Recovery of vanadium element from wastewater of petroleum refineries using effective adsorbent: Mathematical approach via isothermal, kinetics and thermodynamic simulation

Zainab Jabbar Shadhan; Salem Alhamd; Mohammed Nsaif Abbas

Articles in Press, Accepted Manuscript, Available Online from 29 January 2024

https://doi.org/10.30772/qjes.2024.145441.1069

Abstract
  Adsorption behavior can be determined using different essential studies which are adsorption isotherm, kinetics, and thermodynamics. In this study, adsorption isotherm models in addition to a kinetic and thermodynamics studies are used to describe the using of alumina, as an effectiveness adsorbent, ...  Read More

A Scientometric analysis and bibliometric review of IOEX as a treatment to remove pollutants

Zuhal Ahadi Hamza; Ahmed Makki Al-Sulaiman; Hussein Ibrahim Abdel-Shafy

Articles in Press, Accepted Manuscript, Available Online from 03 January 2024

https://doi.org/10.30772/qjes.2024.145618.1095

Abstract
  Pollutants in water bodies pose a serious threat to both the aquatic ecosystem and human health. Ion exchange is used as a chemical process to remove unwanted dissolved ions from water and wastewater. It is widely accepted in developing countries. This analysis provides a bibliometric examination to ...  Read More

Structural behavior of concentrically loaded GFRP-RPC circular columns

Mohamed Qassim Kadhim; Hassan Falah Hassan

Articles in Press, Accepted Manuscript, Available Online from 12 February 2024

https://doi.org/10.30772/qjes.2024.145922.1079

Abstract
  The behavior of reinforced concrete (RC) members with glass fiber reinforced polymer (GFRP) bars has been the focus of several studies in previous years. However, a study to investigate the behavior of reactive powder concrete (RPC) columns reinforced with GFRP bars (GFRP-RPC) has not been conducted. ...  Read More

Experimental and theoretical analysis of photovoltaic thermal collector performance with multi-flow channel

Mohammed Abd Al-salam Majeed; Salah M. Salih

Articles in Press, Accepted Manuscript, Available Online from 12 November 2023

https://doi.org/10.30772/qjes.2024.145157.1057

Abstract
  A steady-state effect analysis of enhancing the cooling performance of a photovoltaic/thermal (PV/T) collector using a damper that changes the flow direction with the multi-flow channel is investigated numerically and experimentally. The study aims to improve the electrical efficiency of PV/T systems ...  Read More

Study and analysis of Ti13Nb13Zr implants in the above knee osseointegration prosthesis

Saif M. Abbas; Ayad M. Takhakh; Jumaa S. Chiad; Borhen Louhichi

Articles in Press, Accepted Manuscript, Available Online from 17 March 2024

https://doi.org/10.30772/qjes.2024.146062.1086

Abstract
  Introduction: Osseointegration are a particular kind of prosthesis that is inserted a short titanium rod or screw into the bone surgically and joined to the prosthetic limb.Experimental part: This study looked at a patient's gait analysis with above-knee amputation wearing osseointegration prosthesis ...  Read More

Voltage equalizer enhancement of series-connected battery strings using variable duty cycle PWM of a dynamic capacitor circuit

Fadhil Toufick Aula

Articles in Press, Accepted Manuscript, Available Online from 17 March 2024

https://doi.org/10.30772/qjes.2024.146300.1100

Abstract
  Electric storage systems like solar systems and electric vehicles use batteries for storing electricity due to their simplicity, efficiency, considerably small size, and dispatchability. These batteries operate on the principle of charging/discharging and require equalization for voltage balance, especially ...  Read More

Experimental study of the behavior of crumb rubber-modified asphalt under the influence of steam aging

Rana A. Yousif; Sady A. Tayh; Abbas F. Jasim; Sarah F. Khalaf

Articles in Press, Accepted Manuscript, Available Online from 23 March 2024

https://doi.org/10.30772/qjes.2024.145870.1087

Abstract
  Incorporating crumbed rubber into asphalt binder or asphalt concrete mixes has become increasingly common in recent years. Researchers have looked into how well this additive can improve both the modified bitumen and the modified asphalt mix. With the growing usage of rubber crumb modifiers in asphalt ...  Read More

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