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Ahmadian Fard Fini, A, Rashidi, T H, Akbarnezhad, A and Travis Waller, S (2016) Incorporating Multiskilling and Learning in the Optimization of Crew Composition. Journal of Construction Engineering and Management, 142(05).

Hammad, A W A, Akbarnezhad, A, Rey, D and Waller, S T (2016) A Computational Method for Estimating Travel Frequencies in Site Layout Planning. Journal of Construction Engineering and Management, 142(05).

Ilbeigi, M, Ashuri, B and Shayegh, S (2016) Price Adjustment Clauses and Submitted Bid Prices for Major Asphalt Line Items in Highway Projects. Journal of Construction Engineering and Management, 142(05).

Ioannou, P G and Yang, I (2016) Repetitive Scheduling Method: Requirements, Modeling, and Implementation. Journal of Construction Engineering and Management, 142(05).

Lopez, R, Chong, H, Wang, X and Graham, J (2016) Technical Review: Analysis and Appraisal of Four-Dimensional Building Information Modeling Usability in Construction and Engineering Projects. Journal of Construction Engineering and Management, 142(05).

Lucko, G, Araújo, L G and Cates, G R (2016) Slip Chart–Inspired Project Schedule Diagramming: Origins, Buffers, and Extension to Linear Schedules. Journal of Construction Engineering and Management, 142(05).

Prego, F J, Solla, M, Núñez-Nieto, X and Arias, P (2016) Assessing the Applicability of Ground-Penetrating Radar to Quality Control in Tunneling Construction. Journal of Construction Engineering and Management, 142(05).

Saleem, M, Al-Kutti, W A, Al-Akhras, N M and Haider, H (2016) Nondestructive Testing Procedure to Evaluate the Load-Carrying Capacity of Concrete Anchors. Journal of Construction Engineering and Management, 142(05).

  • Type: Journal Article
  • Keywords: Concrete anchors; Nondestructive testing; Schmidt hammer; Load-carrying strength; Capacity evaluation; Rebound number; Construction materials and methods;
  • ISBN/ISSN: 0733-9364
  • URL: https://doi.org/10.1061/(ASCE)CO.1943-7862.0001105
  • Abstract:
    Concrete anchors are extensively used in the construction industry. Their applications range from erecting permanent objects such as sign poles, direction signs, lighting poles, and so on, to temporary support structures. Several destructive testing equipment types exist in the industry that can be used to evaluate the load-carrying capacity of concrete anchors. However, no nondestructive testing method has been proposed that can estimate their load-carrying capacity. This study develops a new relationship between the pull-out load-carrying capacity, P, of concrete anchors and Schmidt hammer rebound value, R. It was observed from experimentation that the load-carrying capacity of the concrete anchors depends on the embedment length, anchor diameter, concrete strength, and anchor alignment. The effect of anchor alignment was also observed during experimentation, and anchors with ill alignment of more than 5% can lead to lower load-carrying capacity. In addition, it is also possible to identify the ill-aligned concrete anchor and anchor bolt installed in poor quality concrete using the test results. A new type of anchor cage is also developed and presented in the research work that can be used to conduct the pull-out testing using the universal testing machine, eradicating the need for separate pull-out testing devices. The 8-, 10-, and 12-mm diameter concrete anchors were studied, keeping constant the embedment length and concrete strength. The pull-out load strength versus rebound value relationship for each diameter anchor is presented with a co-relationship of more than 90%.

Salehipour, A, Naeni, L M, Khanbabaei, R and Javaheri, A (2016) Lessons Learned from Applying the Individuals Control Charts to Monitoring Autocorrelated Project Performance Data. Journal of Construction Engineering and Management, 142(05).

Sierra, L A, Pellicer, E and Yepes, V (2016) Social Sustainability in the Lifecycle of Chilean Public Infrastructure. Journal of Construction Engineering and Management, 142(05).

Zhang, L, Wu, X and Liu, H (2016) Strategies to Reduce Ground Settlement from Shallow Tunnel Excavation: A Case Study in China. Journal of Construction Engineering and Management, 142(05).