Estimation of Young's modulus and compressive strength of cement using a solitary wave in granular crystals

IF 10.9 1区工程技术 Q1 CONSTRUCTION & BUILDING TECHNOLOGY

Cement and Concrete Research Pub Date : 2025-04-19 DOI:10.1016/j.cemconres.2025.107904

Ahmed Z. Alkhaffaf , Sangyoung Yoon , Andreas Schiffer , Tadahiro Kishida , Chan Yeob Yeun , Tae-Yeon Kim

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引用次数: 0

Abstract

This study presents an in-depth examination of the sensitivity of highly nonlinear solitary waves (HNSWs) to variations in the curing period, the water-to-cement (w/c) ratio, and the mechanical properties of cement. Experimental results verify that the travel times and amplitude ratios of the HNSWs are highly sensitive to changes in curing time of 1 to 28 days, the w/c ratio of 0.3 to 0.6, the elastic modulus of 0.225 to 2.39 GPa, and the compressive strength of 8.24 to 95.32 MPa. Based on the predictions of a numerical model, we establish a simple mathematical relation connecting the modulus and compressive strength of the sample with the delay of the first (i.e., primary) reflected HNSW. The latter relation is employed to evaluate the elastic modulus and compressive strength of the cement samples with different curing periods and w/c ratios, showing good agreement with the results obtained from destructive tests.

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利用粒状晶体中的孤波估算水泥的杨氏模量和抗压强度

本研究深入研究了高度非线性孤立波（HNSWs）对养护期、水灰比（w/c）和水泥力学性能变化的敏感性。实验结果表明，在固化时间为1 ~ 28 d、w/c比值为0.3 ~ 0.6、弹性模量为0.225 ~ 2.39 GPa、抗压强度为8.24 ~ 95.32 MPa的条件下，hnsw的行程时间和幅值比具有较高的敏感性。基于数值模型的预测，我们建立了一个简单的数学关系，将样品的模量和抗压强度与第一（即主）反射HNSW的延迟联系起来。采用后一关系式对不同龄期和w/c比水泥试样的弹性模量和抗压强度进行了评价，与破坏试验结果吻合较好。

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

Cement and Concrete Research 工程技术-材料科学：综合

CiteScore

20.90

自引率

12.30%

发文量

318

审稿时长

53 days

期刊介绍： Cement and Concrete Research is dedicated to publishing top-notch research on the materials science and engineering of cement, cement composites, mortars, concrete, and related materials incorporating cement or other mineral binders. The journal prioritizes reporting significant findings in research on the properties and performance of cementitious materials. It also covers novel experimental techniques, the latest analytical and modeling methods, examination and diagnosis of actual cement and concrete structures, and the exploration of potential improvements in materials.