https://www.acapublishing.com/dosyalar/baski/CEBACOM_2021_196.pdf

Ilker Tekin
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引用次数: 0

摘要

由于钢筋混凝土构件出现缺陷,可在施工中及施工后对混凝土的抗压强度进行评价。既有工程和新建工程的混凝土质量控制可通过几种方法进行评价。当抗压强度不符合设计要求时,通常采用低强度构件的岩心试样进行结构性能评价。在施工现场,柱和剪力墙的抗压强度是最重要的。此外,为结构的质量控制分析准备相当简单的报告是常见的,特别是在板和梁的分析中。因此,本文提出了一种新的观光评价方法。在本研究中,由于混凝土的弱点,对新建的楼板和梁进行了原位无损和破坏性调查。在此范围内,根据TS EN 13791对板和梁进行了非破坏性和核心抽样检查。建筑采用CEM I 42.5R和CEM II/B-S 42.5N型水泥的预拌混凝土建造。由于这项研究的结果,人们认为TS EN 13791在评估新建建筑的混凝土方面所包含的信息有限,因为混凝土的成分多种多样。如果不按早强设计,用矿渣等颗粒状火山灰材料代替水泥生产的混凝土,其抗压强度达到要求的时间较长。
本文章由计算机程序翻译,如有差异,请以英文原文为准。
https://www.acapublishing.com/dosyalar/baski/CEBACOM_2021_196.pdf
The compressive strength of concrete could be evaluated during and after construction because of a weakness in a reinforced concrete structural member appeared. Quality control of concrete in existing and new constructions can be evaluated by several methods. If the compressive strength did not comply with the design requirements, core samples from the low strength structural members are usually taken to evaluate the structural capability. In the construction sites, compressive strengths of columns and shear walls are the most important. Also, the preparing of quite simple reports for the quality control analyses of a construction is common especially in slab and beam analyses. Hence, in this paper, a new sightseeing assessment is recommended to this analysis. In this study, in-situ non-destructive and destructive investigations in newly constructed building slabs and beams were performed because of the weakness of concrete. With this scope, non-destructive and core sampling examinations were performed on slabs and beams according to the TS EN 13791. Building was constructed by using ready-mixed concrete with CEM I 42.5R and CEM II/B-S 42.5N type cement. As a result of this study, it is thought that the TS EN 13791 contains limited information for the evaluation of newly constructed building for concrete because of its varied ingredients. Compressive strength of concrete produced with granulated blast furnace slag like pozzolanic materials instead of cement needs more time to reach required strength if it is not designed for early strength.
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