By using the IHE website you agree to our privacy and cookies policy

Agree & Close

Search the IHE website

Type in the box below to search the website. Need help? Please contact us.

About Us

Our vision is to be the Institute of Choice for Highway Engineers. Our mission is to provide professional development opportunities, support and leadership for individuals to achieve and maintain professional recognition.

  • Learn about the IHE. IHE membership formally recognises your qualifications and industry experience.

  • We’ve been registering engineers and technicians with the Engineering Council since 1972 and accrediting academic courses since 1989. We’re proud of our long history and provide our members with 50 plus years of highways experience.

IHE Membership

Join us and demonstrate your technical skills, qualifications and expertise to clients and employers. We offer membership types for highways professionals at every stage of their career.

Professional Registration

Becoming a professionally registered engineer demonstrates your high standard of competence and commitment. By choosing to register, you set yourself apart as an engineer with high standards and also demonstrate your commitment to maintain that competence in the future.

Academy Training

The IHE Highway Engineering Academy offers industry-led training in highway engineering. Through one of our specialist training courses leading to an industry-recognised Professional Certificate or Diploma, the HEA delivers the qualifications, skills and knowledge demanded by the highways industry which are in short supply today.

Work with us

Professional Development Partnerships are open to Highways Sector businesses, Local Government Authorities, Academic Institutions, Professional Engineering Institutes and other Highways interest based organisations.


We administer the registers for Highway Inspectors and Road Safety Auditors as well as manage our active forums contributed to by highways professionals.


IHE Branch Event

Online: Evaluating Rutting Resistance of Asphalt Mixes Using Simple Performance Tests

  • CPD Value: This event is awarded 1 CPD Hour
Dates Location Cost (ex VAT)
Wed 03 Apr 2024 Online via MS Teams FREE

Full Details


UK – 16:00hrs – 17:00hrs
Doha -18:00hrs – 19:00hrs

The IHE Middle East Branch would like to invite you to their online technical CPD webinar on Wednesday 3rd April 2024.


The recent emphasis on adopting the balanced mix design (BMD) concept has encouraged highway agencies and practitioners to explore simple performance tests to capture the rutting performance of asphalt mixes. Though many researchers have adopted the Hamburg wheel tracking test (HWTT) to evaluate rutting resistance, certain limitations, such as using this test method during quality control/quality assurance (QC/QA) are challenging. Therefore, researchers are exploring ways to implement surrogate simple performance tests, namely the ideal shear asphalt rutting test (IDEAL-RT) and the high-temperature indirect tensile strength test (HT-IDT) to support QC/QA of asphalt mixes.

However, establishing limiting threshold values of rutting parameters based on such simple performance tests is still in the research stage. Eight mixes with different types of aggregates, binders [unmodified, polymer-modified binder (PMB), and crumb rubber–modified binder (CRMB)] and gradations having different nominal aggregate sizes (NMAS) were collected from various plants. HWTT, IDEA-RT, and HT-IDT were conducted on samples compacted at 7% +/- 0.5% air voids using the Superpave gyratory compactor. The data analysis showed that the rutting resistance index (RRI) parameter derived from HWTT are promising and advantageous compared with final rut depth, as it incorporates the combined effect of rut depth and number of passes.

The study presented correlations of different rutting parameters (shear strength, RTIndex, and HT-IDT strength) derived from IDEAL-RT and HT-IDT with the HWTT RRI parameter. Moreover, to ascertain the pass/fail criteria of asphalt mixes, critical threshold values were proposed and recommended for shear strength, RTIndex, and HT-IDT strength as 1.0 MPa and 65 and 135 kPa, respectively. IDEAL-RT followed by HT-IDT are the most suitable potential surrogate simple performance tests for HWT to screen better and worse rutting performance.

Presenter – Dr. Dharamveer Singh, Professor Department Civil Engineer, Indian Institute of Technical Bombay

Dr. Dharamveer Singh is a Professor at the Department of Civil Engineering at Indian Institute of Technology (IIT) Bombay in India. Prof. Singh has been a faculty member at IIT Bombay since 2012. He received a BE from MBM Engg. College Jodhpur, M.Tech from IIT Kharagpur, and Ph.D from University of Oklahoma USA.

Prof. Singh’s field of specialization is in Pavement Engineering, focusing on recycling, stabilization, new and innovative technology for road construction, pavement design, and maintenance and preservation of pavements, forensic investigation.

Prof. Singh is closely associated with industry and highway fraternity on various fronts including pavement design, construction, training, and implementation of new technologies.

Prof. Singh is member of various IRC committees on pavement design, low volume roads, asset management, and composite pavements.

In addition he is associated with the Bureau of Indian Standards (BIS), technical committee on Bitumen, Tar and Related Products, PCD 06.

Prof. Singh has been conferred with Pt. Jawaharlal Nehru Birth Centenary Award- 2018″ by Indian Roads Congress Nov. 2019 and has published over 100 papers in international journal and conferences. He is also an Associate Editor for International Journal, Innovative Infrastructure solutions, Springer Publisher, and Editorial Board Member of International Journal of Pavement Research and Technology, and International Journal of Road Materials and Pavement Design.

Join the Institute of Choice for Highway Engineers

IHE membership formally recognises your qualifications and industry experience. Join us and demonstrate your technical skills, qualifications and expertise to clients and employers.