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BEHAVIOR OF FRP REINFORCED PANELS SUBJECTED TO EARLY-AGE ENVIRONMENTAL CONDITIONING

机译：早期环境条件下的FRP增强板的行为

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摘要

Controlling the width and pattern of concrete cracks are important for two primary reasons: durability and aesthetic appearance. Due to rebar corrosion accelerating the deterioration of concrete bridge decks, emphasis has been placed on conserving the service life of structures through adequate crack control. Volume changes due to shrinkage and temperature alone can produce tensile stresses large enough to produce cracks if subjected to sufficient restraint. Reinforcement can not prevent cracks, yet with proper design crack widths are smaller and less likely to contribute to durability problems. Limitations and problems associated with epoxy-coated rebar have led to efforts of trying nonmetallic rebar, such as glass fiber-reinforced polymers (GFRP). This paper examines the cracking behavior of panels subjected to early-age conditioning.
机译：由于两个主要原因，控制混凝土裂缝的宽度和样式很重要：耐久性和美观。由于钢筋腐蚀加速了混凝土桥面板的劣化，因此重点已经放在通过适当的裂缝控制来保持结构的使用寿命上。如果受到足够的约束，仅由于收缩和温度引起的体积变化会产生足够大的拉伸应力，从而产生裂纹。加固无法防止裂纹，但是采用适当的设计，裂纹宽度更小，导致耐久性问题的可能性较小。与环氧涂层钢筋相关的局限性和问题导致人们尝试使用非金属钢筋，例如玻璃纤维增​​强聚合物（GFRP）。本文研究了经过早期老化处理的面板的开裂行为。

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