Factors Affecting the Bond Between Substrate-Overlay Material. A Review

Pulkit, Kavendra; Saini, Babita; Chalak, H. D.

doi:10.25103/jestr.156.08

Cited by 5 publications

(2 citation statements)

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“…Subsequently, the HPD was kept saturated up to placement of the UHPC overlay. Substrate surface preparation is paramount since improper surface texturing and pre-wetting of the substrate concrete can result in a lack of bond [23][24][25].…”

Section: Substrate Surface Preparationmentioning

confidence: 99%

Construction Methods and Lessons Learned for a Non-Proprietary Ultra-High Performance Concrete Overlay

Alvarez,

Toledo,

Weldon

et al. 2024

Construction Materials

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The work presented in this paper includes the construction methods and lessons learned from the placement of a non-proprietary ultra-high performance concrete (UHPC) overlay through the rehabilitation of a concrete bridge deck located in Socorro, New Mexico, USA. The selected bridge is a multi-cell, box girder bridge with four spans and a total length of 91.4 m and a width of 16.5 m with two traffic lanes. Rehabilitation of the bridge involved removing the top surface of the existing deck (deteriorated concrete), installing a high-performance deck (HPD) leveling course, and placing a 25 mm UHPC overlay. Sensors were installed in the bridge superstructure (multi-cell box girders, HPD, and overlay) for long-term monitoring. Overlay assessment included physical testing to evaluate the condition of the overlay–substrate bond by chain dragging and direct tension pull-off testing. Conclusions and lessons learned from this investigation serve as a fundamental list of best practices and recommendations for field construction of a non-proprietary UHPC overlay. Recommendations for preparatory tasks including material selection, substrate surface preparation, placement preparation, handling of materials, and UHPC mixing are provided. The recommendations also list best practices concerning the placement of the overlay, curing procedures, and quality assurance testing. Lastly, suggestions are presented for contracts pertaining to UHPC overlay projects.

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Section: Substrate Surface Preparationmentioning

confidence: 99%

Construction Methods and Lessons Learned for a Non-Proprietary Ultra-High Performance Concrete Overlay

Alvarez,

Toledo,

Weldon

et al. 2024

Construction Materials

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“…Various industrial by-products, including red mud, fly ash, silica fume (SF), metakaolin, B flexural strength, and rice husk ash, have been used as cement replacements to enhance 112 concrete strength [9][10][11][12][13]. These by-products possess latent hydraulic properties, leading to improved compressive strength (CS) at an early stage and flexural strength at a later age.…”

Section: Introductionmentioning

confidence: 99%

Response surface methodology use in optimization of concrete properties using blast furnace slag aggregate and recycled concrete sand

Poonam,

Singh

2023

Res. Eng. Struct. Mat.

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The utilization of waste materials in concrete plays a crucial role in sustainable construction by contributing to environmental conservation and enhancing concrete properties. However, waste management and sustainable construction present significant challenges within the construction industry. This study specifically focuses on the optimization of concrete properties by utilizing Blast furnace slag aggregate (BFSA) as coarse aggregate (CA) and recycled concrete sand (RCS) as fine aggregate (FA). To assess the impact of BFSA and RCS replacement parameters, response surface methodology (RSM) based on central composite design (CCD) was employed. The RSM regression equations generated in this study demonstrated high R2 values (>0.8), indicating their capability to explain the variability observed in the responses. To assess the impact of BFSA and RCS replacement parameters, response surface methodology (RSM) based on central composite design (CCD) was employed. In conclusion, the implementation of RSM enables the incorporation of waste materials into concrete, resulting in waste reduction without significant effects on concrete properties.

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Adhesive characteristics of novel greener engineered cementitious composite with conventional concrete substrate

Shanmugasundaram,

Praveenkumar

2023

Construction and Building Materials

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Factors Affecting the Bond Between Substrate-Overlay Material. A Review

Cited by 5 publications

References 0 publications

Construction Methods and Lessons Learned for a Non-Proprietary Ultra-High Performance Concrete Overlay

Construction Methods and Lessons Learned for a Non-Proprietary Ultra-High Performance Concrete Overlay

Response surface methodology use in optimization of concrete properties using blast furnace slag aggregate and recycled concrete sand

Adhesive characteristics of novel greener engineered cementitious composite with conventional concrete substrate

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