CINXE.COM

Just a moment...

<!DOCTYPE html><html lang="en-US"><head><title>Just a moment...</title><meta http-equiv="Content-Type" content="text/html; charset=UTF-8"><meta http-equiv="X-UA-Compatible" content="IE=Edge"><meta name="robots" content="noindex,nofollow"><meta name="viewport" content="width=device-width,initial-scale=1"><style>*{box-sizing:border-box;margin:0;padding:0}html{line-height:1.15;-webkit-text-size-adjust:100%;color:#313131;font-family:system-ui,-apple-system,BlinkMacSystemFont,Segoe UI,Roboto,Helvetica Neue,Arial,Noto Sans,sans-serif,Apple Color Emoji,Segoe UI Emoji,Segoe UI Symbol,Noto Color Emoji}body{display:flex;flex-direction:column;height:100vh;min-height:100vh}.main-content{margin:8rem auto;max-width:60rem;padding-left:1.5rem}@media (width <= 720px){.main-content{margin-top:4rem}}.h2{font-size:1.5rem;font-weight:500;line-height:2.25rem}@media (width <= 720px){.h2{font-size:1.25rem;line-height:1.5rem}}#challenge-error-text{background-image:url(data:image/svg+xml;base64,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);background-repeat:no-repeat;background-size:contain;padding-left:34px}@media (prefers-color-scheme:dark){body{background-color:#222;color:#d9d9d9}}</style><meta http-equiv="refresh" content="120"></head><body class="no-js"><div class="main-wrapper" role="main"><div class="main-content"><noscript><div class="h2"><span id="challenge-error-text">Enable JavaScript and cookies to continue</span></div></noscript></div></div><script>(function(){window._cf_chl_opt={cvId: '3',cZone: "waset.org",cType: 'non-interactive',cRay: '913489254d40d083',cH: 'ftQZEfjxUG3CDONOOnd0RolJXpyKaVJFd_7cMDgpMts-1739782288-1.2.1.1-CYbABbd8X9QWvBU4ZWs0f8ALuGZ71SkO.VEzxaxKKP7YeiMOGBYDnX2OWPweqk8L',cUPMDTk: "\/civil-and-environmental-engineering-conference-in-august-2025-in-hamburg?__cf_chl_tk=IfiJ5TB6s5i9_rMq6XIb_ngPYh5EG5gUJaQYLxAURks-1739782288-1.0.1.1-34VpakOcPY5C7nkdc.umg9xhUhjpjoDGqDPwU3poUUc",cFPWv: 'b',cITimeS: '1739782288',cTTimeMs: '1000',cMTimeMs: '120000',cTplC: 0,cTplV: 5,cTplB: 'cf',cK: "",fa: "\/civil-and-environmental-engineering-conference-in-august-2025-in-hamburg?__cf_chl_f_tk=IfiJ5TB6s5i9_rMq6XIb_ngPYh5EG5gUJaQYLxAURks-1739782288-1.0.1.1-34VpakOcPY5C7nkdc.umg9xhUhjpjoDGqDPwU3poUUc",md: "PIrIdr2ITxgefxK2BbrKQ9u3_K3rpWqoPHqh3hlY..U-1739782288-1.2.1.1-_71m74pUNgFn4_g6F7B3sb0q.89bsE2ce5VpGqMZlgbnfYP7EFI.GnwAhNFaXykhNAZ.z3oY8b0TVlJ0sCGi1eTcVj5Pp77pTmfzRo1Mbhrp1k3B.T_2Rp8w9Dw0q8HrGlOHcffAZCmgnJZFTR1C_8t09Z9d25NBPETRac2mPLvg_PEPlhZRJpPTvljO10a8jp_JrU6P0w2husK0kZ8Cg34pG8ndslsQxKdejFf4CkAp0cBK_UMbkafYGeKjxWAyFq7i22bnSE5e4pwtItuE6KWCQ_rRn5ZBs.fikT9htiZn85WEjtwE.m75_T_g06K4MsGxQICcyHyl85ks69nrYmPF3.nIAruWSkDIfanXXEHIldpptUnHsUms6zM1bOYdvZCBcTrq_p5aHaXmo6WjEscQJg8rftALPJkYvtP3O9HvOhot92BHWVw1KSSAt9ZIwrpzhLuMVfRFol3TrO9pe2kyC0tauZQUvQZ.FQRy5.5u24R69nPlcPRTjPGwhQzfhlDmy.QPUJ_c9MWdNehA6aBKQ0vYP99CAIiydzbK8viTEoIwgz3e8i2aPk_qSHiyuPHOtpWIrYspFtPdmDCpFzhIsqxU7A0J.v.3HoOy8Uy5GOsN3q9ueUYf6C3UU1gvuVM9CY_nhWutM86cwkecc9Kc4N8iunZaReO.A3AXVnz1q_eDSEU06DusjgSJcsDmQ7vYFbjSkysfIntg4ImucxE7fKxasOcDyGF3pb4bbSD0fSFj7zSxpzJi_ESKGE60_e8Ufl.UEHgFQ4N1ALBtuLJmb9IMla0R.mJ.3GSNcdUK5MSMeoChEKKFidaOw.s485z5.igKF0j1sZ6nSLRuf1Vf6G3OhUzlKWTP2MCkRyLGNt12xXUkUYYgmYqWc4QpkWEHM_jOPOchcv81YPZoHVuAGwMOYiUixQFJzZ2_EuzHSORhjzmDgiSntvlMhlC49nUBXkKzIMX1Q1IwnXSQB_22l9gKWbcRj8UPYv2YirCcgCjOQNODb9xIdto2skKBy2fQj4EyZ5FSKdC2R.fNyqeQFlymerFDOseuXEpnn94Dweut5ef85xgB2imGe9L.HccSye8wMEVRuAyjkHIr_3.aS7REN7YdbDy4C9Z4X0Imkg5Dh32Nr8QVr9.5UCNO.c7x8XNUxhDQqpdUZtEWL65grdQ.hcttY0IZ6uv2jXZTzq94Q15YopoXz0lc1aaOqB7VM75JNq5EToLbgPzwcSiQQyklR1nbp9y4wvI4wLKxG6cJQotJac4D2CFjbjkISlWUiVpQ4IzT7pxz9LzhBZzGdVB8XgvkTksLii3UMQ47OKINw6rszjgX6wy7479RsZXKTsIz7.12HAbRGgP_Lu6fFUd4n8ZR62OagVU7D2DFnKA8KbxFjVU4XHK5KR920UgApYHGv0ADiKTuDpRYccTamM32viMDleneaS2mZ2fh77DO0mkp3waAsFGSHXadF6qyEaLFeKWQfL00E04h0slvxqljHTpFt_k15rDlnS6wLcn8miL74JgwI6ZVGA5Vj5a0_.3wIwNB79Ah.LJCSESuHufeKZEtL1iFgCn6NdfMbdUUYgXGFMDGgB.GrIRjOW1s81KW9FEGgJJaGqqOWfNnP.Wp1ncA5jJnAshuihAli2qhmNULRIgL0yh84Jmlg5yv7HWf2Fg_MG2CEK5KR1BJl2tlScbXNQNTfUx6r7qbCO9AP_iEYeSiiKe3HpjVLRDBxQWIwwD3tJ.czvEdc.qypq5CFHvaN6eaR7e4uX9TE.TlE7.ZRPjzgDkD9yYtTC7eH9b0SbjXFF.roqT7YTaAqvh.re3Jk_LzXi3paQ2PflaM6A6qzZt7nf6J01o8sDD5XCo9uoMk1RgKRY1l.Be.whFXsnialOFX49NVq4d5yVP3c4m5HHThZ3Kg9Vy9.uKD2.gHqN3eUuqulbldF3j5_OOHhaRdjyjdMJ3dSG1TPQMkMAAT0ZJ7.q5ZmWguMW2CWdBMfCuqOjRL9oXzILaTYzx0QCCminsWkVOSjMbYkWEah1ygYTbZoxKdL0YQ",mdrd: "TGFTUx62RVUEDKAsOA1.kSlfDOXlouJ5vImmlt9WR4g-1739782288-1.2.1.1-JOUB3KKVEA94tAmaxHSu3UTKrOWkAjC9K.37i.MytQVTWjfRRnT8t8JUg.puTQYupLa4DH2nkLeyVf2OUS9Ym0QnHInLAu3EUHRFZCsyuWhZqPBsFWodwkjtzh88hGRwJ4bVHsI0kktciAnHJ.1YBce4mEPU2WzkNSReWN2Op7QTCydFRdP1Jm.3hx0w6WdnSm58Pmej4WsfwPKwy89wfb6dP5jHQDkqWrJN234CzSSLlaGBXRhUoGVCVGFyuoeCvhWuMZcO1c95w9blUa0S1ZiYIMFrLwGFXMU_XyOj_s7ig3z1Duov8iM8nuLeBX.9.gy6eo1l8FSqTwt.RpCPTj3ukUPR1098m2mxGGsiGzlcIzWCrtZVyzt6GPFhf2VWbTE7Tq01vMrM3RxsYxChtOHduut1J4SwInR9CQ1UMRB1E4dV6V2tVKGGrjAJxQce17V6R33ULs.0c1uT5KOVwkHZVMmRckpdKZCvTcUmGhBwlyX6RkNW1SV64VsHdV0TjilsgXy2_CikDOLOyIw2x_MBWmdhrDMwwDJsR9PPdC6g.DlQDXmZt5lc_GwnQGeUIQ5VWHqdayyR1uRDXelrdh4B4k1DphrbumeHUdzQb6mqpnt8Flbbm8F6wo.amnkf146UMIRvXAVGnOOAGf6REXbwCWV7zd0BPo1NWdwgVU.GOp5YDSMgaHehM602X2g8bBUxLwk61r_5fHIYqbr20632fShnq8gDI_Mfbh6r6cNr1hyb1Pvu8pAXUPCFJlsV2VXKIOMl0UA8Uh6UV2nuTnvhN4Bvd8z523CQXh8Hc_hP8L6cJnETpTRLLMtgGQ7swPYXSzxMOmTJdCp4y0X4eaJk1cPDk4H.RnikeTrIFE6MYO_5fjNGF8o8bLTTGmStSLgJzdwFGxmSDq_TyHzkZO27VEfTMh.VwiPaQMk9frPrYmdiP3FI91r4V8rkun4SPSxFnBqTK3hHesqdW1Tpzhwg0_UYiilcXZkhAtOTIKjzO1xDBs0RlxCroZfpxan5_aLgFIQ3pk9dZphhUHxAzC8.p7tN3fML4tAoFwPWPzZIWGUDkOsXbrKoezF9tkrz0MUeq7.kME7L6Kbl0V9WTHjz9H8g8OnLSQOfFQ2.Yvwtb1tyQ9FaVh4tYzgAKZW1GCBfsnew0Pex5fsITPd8zIsSiDh5osNs3.7eqZ5VJ9iz.c_45MuUW9R05pfIyHdFZyMKz0g31wpQFZMdtMqg.ryPVtneEo.QhsuGq36pF4b4Pc1UDuCoqiqcDaGYAXjTZMG5V2J4JgIYffJHQPdJ592AJdGNILg3Da5jnlviJlzAcotMB2AptSynHdKYG6BSNrUaZawZ66CFn1eccns0uOy72ZFvI9mdV4FA7C0EK1tV_rT4.tVtGmvoPI5ubURI9lMrcokM.8oAdOQGPo5Q6Tx_UNGm_x0YqggYsPZm7WdMimZs4AXEdK_F024GunzltrvQhk2g1S9NQxuxEUmUrPn80.4plkxKHsipY4FF423BQBPZlPPp5_AgRHkhnRHAjPS.Rp2yaDdIZ4V8Kp9LSe5CuJnRmp5TFrtLJw1QYO5tt6VIgXigfJPVmv9wyibiLRYA_2Lr1qpaU_wHjPD_z_r.1zC75flbMj582UojtP4kKWLeC9GrPjPsySm38Te8QQ3PJzYI5SrN_8MB7taRQIkhfVbBjRoQZwVG75Iwf2o33NARGZfog8TUZ44YhEs0Yn9L1c3DHESZ7eaxfa4tbSSi8LlNW3Io3FUNJCURmXMQAdk31qYVQsivq6LJ3uCxoJnY2oP0IiRdF9tAcbIdThTQjBUDDXbZC3TLKJRcQTi4QDlNB1Y6ICYcpC9PqodnnSPZNGo6lxTVSnWlh70GvB2CtlKvu8vMj4Ry6Vzi6QU7nYnKF91XKk0hqstopMwF3iadrRclZK545xaNwhoIqGO1xOxNw1ZxGygSzl8EAbk"};var cpo = document.createElement('script');cpo.src = '/cdn-cgi/challenge-platform/h/b/orchestrate/chl_page/v1?ray=913489254d40d083';window._cf_chl_opt.cOgUHash = location.hash === '' && location.href.indexOf('#') !== -1 ? '#' : location.hash;window._cf_chl_opt.cOgUQuery = location.search === '' && location.href.slice(0, location.href.length - window._cf_chl_opt.cOgUHash.length).indexOf('?') !== -1 ? '?' : location.search;if (window.history && window.history.replaceState) {var ogU = location.pathname + window._cf_chl_opt.cOgUQuery + window._cf_chl_opt.cOgUHash;history.replaceState(null, null, "\/civil-and-environmental-engineering-conference-in-august-2025-in-hamburg?__cf_chl_rt_tk=IfiJ5TB6s5i9_rMq6XIb_ngPYh5EG5gUJaQYLxAURks-1739782288-1.0.1.1-34VpakOcPY5C7nkdc.umg9xhUhjpjoDGqDPwU3poUUc" + window._cf_chl_opt.cOgUHash);cpo.onload = function() {history.replaceState(null, null, ogU);}}document.getElementsByTagName('head')[0].appendChild(cpo);}());</script></body></html>