基于坍落度流动试验结果的高流动性混凝土稳定性定量评价方法

IF 6.7 2区工程技术 Q1 CONSTRUCTION & BUILDING TECHNOLOGY

Journal of building engineering Pub Date : 2025-06-14 DOI:10.1016/j.jobe.2025.113167

Youjeong Lee , Jong Kim , Min-Cheol Han , Cheon-Goo Han , Dongyeop Han

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引用次数: 0

摘要

本研究介绍了一种定量评价稳定性的方法。ASTM C1611提出了一种简单的稳定性评价方法——视觉稳定性指数（VSI）。虽然该方法有四阶段的稳定性条件，但仍难以定量定义稳定性。本研究提出了一种新的离析评价指标（EIS），作为大流动性混凝土稳定性的定量评价方法。由于所提出的方法是根据坍落度流动试验结果的形状进行计算的，因此其基本原理和现场适用性与VSI相同。采用作者的EIS方法测试了各种混凝土流动状况，并与VSI进行了分析和比较。试验结果表明，EIS方法是可靠的。采用本文提出的EIS方法作为VSI加固方法，对混凝土混合料的高流动性稳定性进行了较为精确的评价。

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A Quantitative stability evaluation method for high fluidity concrete based on slump flow test results

This research introduces a quantitative method for evaluating stability. ASTM C1611 suggested a visual stability index (VSI) with a simple stability evaluation method. Although this method has four phases of stability conditions, it is still difficult to define the stability quantitatively. This research presents a new evaluation index for segregation (EIS) as a quantitative evaluation method of high-fluidity concrete stability. Since the proposed method is calculated based on the shape of the slump flow test results, the basic principle and field applicability are the same as VSI. A wide range of concrete fluidity conditions were tested using the authors’ EIS method to analyze and compare with VSI. The EIS method proved dependable during these tests. Using the proposed EIS method as a VSI reinforcing method, a more precise evaluation of high-fluidity stability was achieved for concrete mixtures.

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来源期刊

Journal of building engineering Engineering-Civil and Structural Engineering

CiteScore

10.00

自引率

12.50%

发文量

1901

审稿时长

35 days

期刊介绍： The Journal of Building Engineering is an interdisciplinary journal that covers all aspects of science and technology concerned with the whole life cycle of the built environment; from the design phase through to construction, operation, performance, maintenance and its deterioration.