Carbonization Law of Fly Ash Concrete under Freeze-Thaw Cycles Based on Image-Pro Plus

IF 0.6 Q4 MATERIALS SCIENCE, MULTIDISCIPLINARY

Annales De Chimie-science Des Materiaux Pub Date : 2020-12-30 DOI:10.18280/acsm.440604

Jingguo Yuan, Bo Zhao, Zhenqiang Wang, Yan Liu

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引用次数: 2

Abstract

To understand the influence of freeze-thaw on the carbonization performance of concrete in severe cold areas, this paper conducted experiments to explore the carbonization law of fly ash concrete under freeze-thaw cycles. First, carbonization tests were conducted under different freeze-thaw cycles and fly ash contents; then PS (Photoshop) and IPP (Image-Pro Plus) were adopted to measure the carbonized area and calculate the ratio of carbonized area (RCA). The experimental results showed that, when the fly ash content was between 10% and 30%, RCA increased slowly; when the fly ash content was 20%, the convergence point showed up; when the fly ash content was 0, the air-entrained fly ash concrete had the best resistance to carbonation. With the help of PS and IPP, this paper calculated the RCA more accurately and found that, the freeze-thaw cycles can aggravate carbonization, and there is a linear relationship between carbonization depth and RCA. The research findings in this paper can provide a reference for the durability evaluation and design of concrete structures in severe cold areas.

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基于Image-Pro Plus的冻融循环下粉煤灰混凝土碳化规律研究

为了解冻融对严寒地区混凝土碳化性能的影响，本文开展了冻融循环下粉煤灰混凝土碳化规律的试验研究。首先，进行了不同冻融循环次数和粉煤灰掺量下的炭化试验;然后采用PS (Photoshop)和IPP (Image-Pro Plus)测量炭化面积，计算炭化面积比(RCA)。试验结果表明，当粉煤灰掺量在10% ~ 30%之间时，RCA增长缓慢;当粉煤灰掺量为20%时，出现了收敛点;粉煤灰掺量为0时，掺气粉煤灰混凝土抗碳化性能最好。利用PS和IPP对RCA进行了更精确的计算，发现冻融循环会加剧炭化，且炭化深度与RCA呈线性关系。本文的研究成果可为严寒地区混凝土结构的耐久性评价和设计提供参考。

本文章由计算机程序翻译，如有差异，请以英文原文为准。

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来源期刊

Annales De Chimie-science Des Materiaux 工程技术-材料科学：综合

CiteScore

1.70

自引率

25.00%

发文量

审稿时长

>12 weeks

期刊介绍： The ACSM is concerning the cutting-edge innovations in solid material science. The journal covers a broad spectrum of scientific fields, ranging all the way from metallurgy, semiconductors, solid mineral compounds, organic macromolecular compounds to composite materials. The editorial board encourages the submission of original papers that deal with all aspects of material science, including but not limited to synthesis and processing, property characterization, reactivity and reaction kinetics, evolution in service, and recycling. The papers should provide new insights into solid materials and make a significant original contribution to knowledge.