Home / Performance Comparison of Intelligent and Delayed Cold Joints
Abstract This study introduces a mechanics-based numerical model to characterize the behavior of cold joints in reinforced concrete members subjected to monotonic loading.
Read MoreA smooth cold joint of concrete is an untreated weak plane caused by an interruption of the casting process, which can significantly affect the performance of a structural system. In this paper, the
Read MoreCold joints introduced hidden weaknesses in the structure, which were not easily visible but became evident under operational loads. Therefore, this process of prediction and evaluation played a crucial
Read MoreThe longer the delay in placing the second RCC layer, the more detrimental the effect of the cold joint. This effect was most noticeable on mechanical and permeability properties tested with applied load
Read MoreThis paper investigates the effect of pouring interval on the fracture performance and fracture characteristics of concrete beam with cold joints through three-point bending experiments
Read MoreCold joints in reinforced concrete (RC) beams can significantly impact shear behavior, influencing stress distribution and failure patterns. This study examines how delay times,
Read MoreTherefore, this study set out to derive the optimal conditions for ensuring the bonding shear performance considering the delay leading to the occurrence of cold joints during the pouring of UHPC (180 MPa).
Read MoreThis review examined the effects of construction joints, particularly cold joints, on reinforced concrete beams'' structural performance and integrity.
Read MoreTo resolve the issue of cold joints forming in concrete during the construction process, this study has developed a control system with visual prevention capabilities.
Read MoreLarge amounts of concrete pouring are heavily seen in growing countries like the Philippines. Big projects with better planning and scheduling still face construction delays, and the construction
Read MoreThe review explored how cold joints impacted key properties like flexural strength, ductility, and energy dissipation capacity, drawing on numerous
Read MoreThis review examined the effects of construction joints, particularly cold joints, on reinforced concrete beams'' structural performance and integrity. Cold joints, which form when concrete is poured in
Read MoreLarge amounts of concrete pouring are heavily seen in growing countries like the Philippines. Big projects with better planning and scheduling still face constr.
Read MoreShotcrete Placed in Multiple Layers does NOT Create Cold Joints By Charles S. HanskatDesigners and inspectors often confuse place-ment of multiple layers of shotcrete in building out a section with cold
Read MoreCold joints often appear in precast structures, bridges, and retrofitted buildings, where concrete parts cast at different times meet. The potential of these cold joints to transfer shear
Read MoreReductions in steel bar diameter and bedding coefficients exacerbate the damage extent of concrete within cold joint areas. Under the researched conditions, cold joints at the arch foot have
Read MoreKey Takeaways: A cold joint in a concrete slab occurs when the first layer of concrete sets before the next layer is placed, resulting in a lack of intermixing between the layers. Causes of
Read MoreAbstract Cold joints in reinforced concrete (RC) beams can significantly impact shear behavior, influencing stress distribution and failure patterns. This study examines how delay times,
Read MoreHowever, existing research on intelligent construction mostly focuses on the control of single processes, such as concrete vibration and compaction,
Read MoreThis study focuses primarily on by what means the strength of concrete is affected from cold joints formation and how the effect of such joints can be improved in the construction site.
Read MoreThe American Concrete Institute (ACI) is a leading authority and resource worldwide for the development and distribution of consensus-based standards, technical resources, educational
Read MoreUnderstanding the root causes is essential for prevention, as cold joints are irreversible once formed. Delayed Placement of Subsequent Batches One primary cause is the time lapse
Read MoreThis study focuses primarily on by what means the strength of concrete is affected from cold joints formation and how the effect of such joints
Read MoreConcrete joints are quite essential for reinforced concrete structures, without them it will not be possible to construct any building. However, when concreting cast-in-situ structures,
Read MoreConcrete specimens with and without cold joints were subjected to drying–wetting, freezing–thawing and high temperatures (300, 600 and 900 °C) and subsequently tested for weight losses and splitting
Read MoreThe objective of this paper is to extend the knowledge about the fatigue behavior of cold expanded and interference fitted plates in double shear lap joints and compare the effect of these
Read MoreTo reveal their impacts on tunnel service performance, indoor tests and theoretical analysis are used to assess the mechanical properties of concrete with cold joints, including elastic
Read MoreThis technical note briefly discusses non-destructive evaluation of cold joints in concrete structures. We will review how structural engineers and quality
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