橡胶钢筋混凝土连续深梁试验研究

Q1 Chemical Engineering
Ali Abdulameer Kadhim, Hayder Mohammed Kadhim
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引用次数: 9

摘要

本文介绍并讨论了以普通钢筋混凝土(ORC)为参考材料和橡胶化钢筋混凝土(RRC)制成的14根两跨连续深梁的研究结果。主要参数是用粗骨料和细骨料替代的橡胶比,剪切跨度/深度比(a/h)分别为1.33和1.66。使用碎橡胶和碎橡胶分别以四种不同体积量(5%、10%、15%和20%)代替粗集料和细集料。拟议的混合料显示出替代20%骨料(粗骨料或细骨料)的能力,生产的仍然是结构混凝土。所有梁设计为在剪切中失效。主裂缝形成在中间支撑和施加的荷载之间。尽管废轮胎橡胶在混凝土中具有特定的表观降解,但潜在的好处似乎忽略了不利影响,也为解决橡胶废物问题提供了主要的重要价值。研究结果表明,分层橡胶体积替代天然粗细集料20%,连续深梁的极限荷载分别降低了32.06%和32.65%,但极限挠度分别显著增加了83.07%和106.28%。当胶粉的替代率为20%时,橡胶连续深梁的延性提高了36.95%。
本文章由计算机程序翻译,如有差异,请以英文原文为准。
Experimental investigation of rubberized reinforced concrete continuous deep beams

Results of fourteen two-span continuous deep beams made from ordinary reinforced concrete (ORC) as a reference and rubberized reinforced concrete (RRC) is presented and discussed in this research. The main parameters are the rubber ratios as a replacement with coarse and fine aggregate and the shear span/depth ratio (a/h) is 1.33 and 1.66. Chip and crumb rubbers were used to replace coarse and fine aggregate respectively in four different amounts by volume (5%, 10%, 15%, and 20%). The proposed mix shows an ability to replace 20% of the aggregate (coarse or fine), and the production is still structural concrete. All beams design to fail in shear. The main crack is formatted between the intermediate support and the applied load diagonally. In spite of the inclusion of waste tire rubber in concrete having specific apparent degradations, the potential benefit seems to overlook the adverse effects and also provides the primary significant value of resolution for rubber waste problems. The results show that 20% volumetric substitution of natural coarse or fine aggregates with tier rubber reduced the ultimate load of continuous deep beams by 32.06% and 32.65% but significantly increases the ultimate deflection by 83.07% and 106.28% respectively. The ductility of rubberized continuous deep beams increased up to 36.95% when the replacement ratio of crumb rubber is 20%.

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来源期刊
Journal of King Saud University, Engineering Sciences
Journal of King Saud University, Engineering Sciences Chemical Engineering-Fluid Flow and Transfer Processes
CiteScore
12.10
自引率
0.00%
发文量
87
审稿时长
63 days
期刊介绍: Journal of King Saud University - Engineering Sciences (JKSUES) is a peer-reviewed journal published quarterly. It is hosted and published by Elsevier B.V. on behalf of King Saud University. JKSUES is devoted to a wide range of sub-fields in the Engineering Sciences and JKSUES welcome articles of interdisciplinary nature.
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