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\begin{document}

\title{Initial cracking strength and initial fracture toughness from 3-p-b and
WS concrete specimens}



\author[1]{Xianhua Yao}%
\author[2]{Lielie Li}%
\author[1]{Junfeng Guan}%
\author[1]{Min Zhang}%
\author[1]{Zepeng Liu}%
\author[1]{Ruicong Han}%
\author[1]{Shuanghua He}%
\affil[1]{North China University of Water Resources and Electric Power}%
\affil[2]{North-China University of Water Conservancy and Electric Power}%


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  \date{June 08, 2024}


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\selectlanguage{english}
\begin{abstract}
A concept of initial cracking strength of concrete is elaborated in this
study. A fracture model and associated methods for determining
independent initial cracking strength and initial fracture toughness by
using the three-point-bending (3-p-b) and wedge splitting (WS) concrete
specimens are present. The initial cracking strength and initial
fracture toughness can be simultaneously determined using a
curve-fitting method from the proposed fracture model. All of the
initial fracture curves can be obtained using the determined concrete
materials. The initial loads of the 3-p-b and WS specimens can be
predicted on the basis of the curves with \selectlanguage{ngerman}±15\% ranges. Furthermore,
analytical functions are used to obtain and determine the initial
cracking strength and the initial fracture toughness of concretes
directly. The determined values with ±15\% ranges cover the most of
initial loads of the 3-p-b and WS specimens.%
\end{abstract}\selectlanguage{ngerman}%



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\textbf{Hosted file}

\verb`20200711NEW Manuscript for initial cracking.docx`  available at \url{https://authorea.com/users/341870/articles/468770-initial-cracking-strength-and-initial-fracture-toughness-from-3-p-b-and-ws-concrete-specimens}

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