Rai Waqas Azfar

ORCID: 0000-0003-2448-7856
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About
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Research Areas
  • BIM and Construction Integration
  • Construction Project Management and Performance
  • Innovative concrete reinforcement materials
  • Concrete and Cement Materials Research
  • Recycled Aggregate Concrete Performance
  • Sustainable Supply Chain Management
  • Tunneling and Rock Mechanics
  • Building Energy and Comfort Optimization
  • Grouting, Rheology, and Soil Mechanics
  • Industrial Gas Emission Control
  • Advanced Photocatalysis Techniques
  • Occupational Health and Safety Research
  • Energy and Environment Impacts
  • Gas Sensing Nanomaterials and Sensors
  • Urban Heat Island Mitigation
  • Management and Optimization Techniques
  • Infrastructure Maintenance and Monitoring
  • TiO2 Photocatalysis and Solar Cells
  • Quality and Supply Management
  • Hybrid Renewable Energy Systems
  • Sustainable Building Design and Assessment

National University of Sciences and Technology
2016-2024

Risk management in construction projects is an important process to achieve the project objectives terms of cost, quality and time. Construction faces delays, cost overrun defects due avoidance risk factors by contractors, clients consultants. So present study aims investigate that influence namely time building Pakistan from perspective clients, were selected literature survey finalized after consultation with experts. A questionnaire was prepared various professionals approached for...

10.1080/15623599.2019.1683693 article EN International Journal of Construction Management 2019-11-06

This study involves the preparation of cement grout samples by varying proportions superplasticizer (SP) and water-cement (w/c) ratio (0.25-0.45) which were tested for computing flow value 1-day, 7-day, 28-day compressive strength. With 75 data points a neural network model was developed to predict strength based on w/c ratio, percentage, value, strengths 1-day 7-day as input variables. Due better performance Artificial Neural Networks (ANN) over other applied models, this predicts confident...

10.1016/j.cscm.2023.e02370 article EN cc-by-nc-nd Case Studies in Construction Materials 2023-08-06

Designing and modeling tunnels are a complex labor‐intensive process, exacerbated by the involvement of multiple designers software applications to accommodate diverse geometric subsurface conditions. This often results in reduced efficiency, productivity, increased potential for errors. To address these challenges, authors implemented strategy integrating building information mathematical relationships governing tunnel geometries rock support elements. Using Autodesk Revit, they developed...

10.1155/2024/8118578 article EN cc-by Advances in Civil Engineering 2024-01-01

Prefabricated construction is being pursued globally as a critically important sustainable technology. technology (PCT) provides opportunities to effectively manage waste and offers venues address the poor productivity lackluster performance of projects, which are often expected miss their budget schedule constraints. Despite significant benefits inherent in adoption PCT, research has shown an unimpressive exploitation this building sector. A modified version popular acceptance model (TAM)...

10.3390/su15108281 article EN Sustainability 2023-05-19

This research focuses on the mediating role of construction materials, sustainable use between supply chain integration and industry performance. In this concern, case Pakistan was considered specifically. The design employed in study quantitative a close-ended survey questionnaire used as instrument. sample size is comprised 300 participants analysis performed through Structural Equation Modelling (SEM). results revealed that effect components performance statistically significant....

10.3390/su13020522 article EN Sustainability 2021-01-07

10.1007/s11356-016-7644-7 article EN Environmental Science and Pollution Research 2016-09-14

This study draws a comparison between destruction potential of TiO 2 nano particles when its doped with Sulphur and Zirconium.When gets excited, it induces into electron pairs holes due to the presence Sulfur in nanoparticles, energy these electrons will be enhanced since S donates additional during reaction.While Zr has been found improve thermal stabilization also increases surface area.Fixed bed catalysis system was used assess H gas using nanoparticles.The samples obtained were analysed...

10.18178/ijesd.2019.10.9.1185 article EN International Journal of Environmental Science and Development 2019-01-01
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