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,PHN2ZyB4bWxucz0iaHR0cDovL3d3dy53My5vcmcvMjAwMC9zdmciIHdpZHRoPSIzMiIgaGVpZ2h0PSIzMiIgZmlsbD0ibm9uZSI+PHBhdGggZmlsbD0iI0IyMEYwMyIgZD0iTTE2IDNhMTMgMTMgMCAxIDAgMTMgMTNBMTMuMDE1IDEzLjAxNSAwIDAgMCAxNiAzbTAgMjRhMTEgMTEgMCAxIDEgMTEtMTEgMTEuMDEgMTEuMDEgMCAwIDEtMTEgMTEiLz48cGF0aCBmaWxsPSIjQjIwRjAzIiBkPSJNMTcuMDM4IDE4LjYxNUgxNC44N0wxNC41NjMgOS41aDIuNzgzem0tMS4wODQgMS40MjdxLjY2IDAgMS4wNTcuMzg4LjQwNy4zODkuNDA3Ljk5NCAwIC41OTYtLjQwNy45ODQtLjM5Ny4zOS0xLjA1Ny4zODktLjY1IDAtMS4wNTYtLjM4OS0uMzk4LS4zODktLjM5OC0uOTg0IDAtLjU5Ny4zOTgtLjk4NS40MDYtLjM5NyAxLjA1Ni0uMzk3Ii8+PC9zdmc+);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: "publications.waset.org",cType: 'non-interactive',cRay: '9134e8ab0ff4490c',cH: 'k6epWgkbsrgzgkfSZyvH96A6Cxs4kf6nBAKDXA58xo0-1739786200-1.2.1.1-vcVD4r9M1FIv2DNPQT_7zvPRxnCyzRYQYkIamj17nWDUy2MlN3Kzt18R_lQp0Mcs',cUPMDTk: "\/10012903\/causes-of-delays-in-construction-projects-a-case-study-for-petrochemical-industry-of-iran?__cf_chl_tk=kIRD.apfLTWNGFXiOKEZrlwU9khfabgCLSLQHcax44o-1739786200-1.0.1.1-7.ugnjscGrG.9iixoj8C8gVgk4qAZRVPPP4whbyhXTc",cFPWv: 'b',cITimeS: '1739786200',cTTimeMs: '1000',cMTimeMs: '120000',cTplC: 0,cTplV: 5,cTplB: 'cf',cK: "",fa: "\/10012903\/causes-of-delays-in-construction-projects-a-case-study-for-petrochemical-industry-of-iran?__cf_chl_f_tk=kIRD.apfLTWNGFXiOKEZrlwU9khfabgCLSLQHcax44o-1739786200-1.0.1.1-7.ugnjscGrG.9iixoj8C8gVgk4qAZRVPPP4whbyhXTc",md: "FFlcEWIA4qwVONxN18ns98SWj3Lyn_0drFQNOHIETZI-1739786200-1.2.1.1-EKnKdDx0wkHDyE8FigefhvEvoWD2tK_U59yKh9yAg0L78j2V2vcYIawupUXzw_L1uG0KFrCNl1djKWU3wXAiHnc95BXWqNnQr4c9TUiitdHtURZM0M.m1cono8MX5bRLxlqMiY2uhp.S50tRPfy1JE6aW0Oi3enOuEtDMm_PFS221.iNM9imRi69z9ELUbVgZgPsIYndgyWmnEyGFSL528NTenMg9RDd6MovAkFXfjS0KKpkg4AABsu.p7G4rYB_UpT.dJSxPSfLMA8WLRgeDxahvdx6htG1Flutygd2ED5XjObZWSUG9uQ18Xi8C_hKuaVS7EI3ZCTSYrs8CSZQDJg73fGuT6TlVL1CUNLaoOBFdSm5l9AIh1EWxphnroS1RNJ84_5HMoxG9LK0AkCvEcv7j6Tos8kjJThj_IkUMeqNuxNmIjSlKBeYjoTP5Wo1IF54I6m5yLswLt7jx76cJeAtdHMZdYkNkMmlFuSC92RAHJdxT1BVkgtLn0VaxzvLLndFa.Rvg.cBLJHClgBt7U1NzEviqNklkPk1R47bZfjVfyQP1olOEZrvVbsUg7qg4X1vFFlmNmXfXI0V8yqhIJuSEbko0Bvie5YoIAmRERBfqgd4eB5wKUvfgbUIZe8Ofxx_YscqOynRxYM29fN3e1AUpVfetm0CIOFM8dsq4RTqN7FhlATgeg5N7ttFf7azgBcL.JL_bZgaLTbR1433vF8IIZEag7Gl1e6IMGK2cA2NE9ov0raJKeY0m0caDrBTZZxxyhZHO8vqt_9dxL2qwk9WcX88plTcPtGG755m1KK4uGWNagMm4aGvPE3p2v9rDXXVNA6NitEhXDs2jooZyY_Cd.Mt7bEE67z4wXCMFLRLGfJ12r5ZdoIlkc8SGO95rubG8GncuzFpf.1Zf46Rq7pKP2ay9OfoubWIr_NKrZMZ1qiP09IG5NtpNNm3P_BRHzhH6GCuEaaEoL3AVzwlWdTqnUECx3aF90RMolYfaa48troUgqjCyJhlC8I8DC4Nwdg6ubOUHVct8eMHeVhA9GuVZnBoyzZ_u9Rfh4kFmWxV6FEnWjiTuk9uvk6ca7ZpDkcNlnMxuacMYjy8rucEtcZs.tx_7HUPxiMNn4N1VTTRRxdcljZ6y_7R_rXKTkQtv3KpuUJMtupxnGJQoezvWKak6FVxtOBmjo9HevgAZhuLmdxX9aKTPtrN61KpOIC284GfLJY1Ms5rJA2koDZmnXlSrGOiMwnPnplWOpB3CoXFApCrP9LTK0_STsFlAogabrLYqGjL4hVZfXlegIywPTFBVM8HOFQOcCJvxkzF1jEVz7r6LzaEx6u1GbGK2ZxjDVpAfLJdx8l9QX6_rM9rIi4ZQd7qNVaBgJM6Xp2gEnB9qrzUn7LjCHSHkuGsywsTuTyV25mQTj9Ynfeu1AThE.HVtKGsuLFq2sJyvvedd3sCC2_NAtSbdL9A4pyUuT41x1CnzgUIzfkLEAj1aLnb2J32eEPW565Wpxy8kLttkh0f2SIVktXVaAgD3CXr2bxs7nrv7s26Jz8t_e0_aSj8ur3UUHHq6hBSRtgjtdlvtTX.tDrzPQQKP0PNQqYB14gs4_Qk8HBaISbVbTK4V3aQWtBwMG_iv6TYvJGblGf_XnWDv_7bUdQacilGwRGIshcZi7FI4zlXPlEIxNthdq3z19BcZP8nNCWovV3TWNnPnT6uio91IXgPnqhLW_3t14GbhX.LknvI7OijShBUs6qUtG9vDUFadYd3elVacaMrqWFuOslZIGDb_WDsp6T7YIny15a0hBffKKBRplc6eGuMp3DbEJaaES8vYmYfMBhntPvyVycXvdGfBRFaQ_EtPdok6VaniEbV4b50Zk.o05PTwvLq.6Bis_7J_49QJvosEjC.GvquVoPTqUX_sk9vEpah95HdBLm4Y1cf1BIexXDKrTFKgA9ZdF081e6zsNeeSRP9wkB5kPF06QaLXRErfU6v.MeeSXhqsDBLnLB0VqRBL8Un0Fj_u8c.M23S2h5TDee8xXlWz7lpVyWYQ6q5d0ylfaGCmcun5dhRMusTok3cxGPTMtjqU2f2JyQVt9MUEf0Xd7N0TH8jv6h8H0agPxUl9w9NlZDvZ6oLJGMoE3Y5Zw",mdrd: "6g0ZmkjJMk9bx4MDkLYzpgcW2JV3vHX_Em9A5tfU93k-1739786200-1.2.1.1-af_MfZHSlwSQjHJwS1FzcYgdMXeJEgmISu61UUWTMFkjjLG4bR_bEyu2a5yUhFiOO9cRsEJ_PGZSXUjchBd9IRx6cm9p_T2EdlY42qs0Xvs3G7h7JpDgV4_Bq15Z4FMzlWKA5y911w4FCvOjXI406.rmnXoRn5CFva61KD4WUjIruMGlka8H85FWfIFlIxVAdrm.errWMeAd1cJ9s.x4767GyiumTBfHUQvfWa5_aXrTw7fFdnpV50mIqZpB2CPA6QFTGAQbmf_1DgWpl_lATSqfeB0IGBbDvKw3tWMUBBkEX6ARAdEeyBcGIM.Ew6HYexgz6Nf7KKxeJ7YJ5P0iiCMGsF_wGy0yWpJYO91F7UIXjyXqcOCDD9MY89XCiHFD4.fnBq0Ziks1KaKKCMjQ4mZpvHJqu8LaSftalLHI_CqXBpSciYBTrdQfIfc8.B3f9WIp4JsgL0UWKFHBHaI24mQhNWW0zUxtGUv9OetN_gSvz_5hp6dwKdgxibnfYaqAtgesilZsv_LsgfzbNvTGiKTurQTLVioO35fM0Zu4kRmoJ52KkFbEboHDTi5ydpZoSaOiMYLe4Mwwi3vFmNXnha4D2mZioaaPXCICZrHo1WCyQXIoLrHGhz_FJ8Ey3V2M8ots5bjPTvMRdhb.D.D2J2rxKlFAGkG3iokrFEk4ZsHHLw3T1GXiW_gpzPdgqUDGJHHRR9LqJaNGrpbzCoO4wNwkwN.xkk09kdha8Jr2CtYyU9XEHZYj1U0ejXKx5en4kkQicUctLGUtUmc8vVSPf9hPUWD6jOp8jPJDsPhWbeC.ubq4lCX5Q5Hli6rMM9LbhApiHEp3Tantt43f4ZxxrFxUKsqXfRWw_WtdREA5uolYk9mHuhB3a6St2w_lZRvSMDVE9R40yhFRIvC3cmhMWemNrhktt3Mo_V_jtNT5D6YvbUCOgSwem36.qxPsU.E8b7ZVCYbpwuPZxx6HdOoDuMdcj9FpyE2Yf1ZyCkDQQVXFK0X1HFe80gMLyDtvpTpL.RLxRv.1RTD2AQNixzvyVjN2obESWLffXXn2ZeY0z9Tl2bGU_5qMe0XyQVW1tbATN_LcTQohFmmhaZyWdMmRbwTwTui_AGDkEm1j6YnzAxee9qR0SN42IL8xupJ18C3C70coY1Rox1I1TtCp_7QEqIIpQ2Jw7IoIEmXm2QkpWUvpKNtflpO0Cpk5Ba08tg89DW2yJd_UgOG0hiM2jTYX20C4aFJZmDAD9AaYwODlsPIX.XUiSusCD1Mox41QEi24UfwAOFKzB06_CBGAV70XrgtSNNw3KKEnmHiS6NugY.HDWjawwMYtlvQGo9WcYTqc3TNxAddSoGrp80Brqvj8u1gASsal7CaGimI_9N5eOs4VXzVt3wKEVKPdv9VKBuafo4X8YEjEwgN4GTuOgUnpESZvYr937mRFfFbalN27SoZemmJeevy77m81LEfFfnbi4cA0KN8VM0DWGlLld89njlpg7p6qdLfKys9tHzce982fqpDmQK9IzmBpyPt5_UuRPZA2e8SMDiXUDsjj9h5BPSrHZJzNBzOhQcNnk2ko_MYIEU2zeVHh0NlhGGgWMZb5LbvuRDtX8xzluq3oi8NUKIYSFXIgHnGanP.Aup7OVFWuVea5mkpIFvJZYF4qLAKJ3OhOR_e.cOFMbKxHfdTCQNH5Yfr5SSr_uvTZbTOPIAbDQXp9rhzRF6H.OauO39c6MIdT3ttrWBbqGPzJ5x6riLkfEZZ6EMEFolBj3c_KYhmNr0cLqoc0V9j5IxfY3ggjXYfMpZEwm_0alMz6pnrfL1oDRNQ5MgA3AECyhrQI9TjgkWuJ8zDspQ7yom8E6dCSeKSApLjNBAbki90IC3tYgKFLMEM6yXVZclws.saB9iRmF.Isv.wXehC_5nHCnxkrpY5lyto_csx9ge3oB20myXf6Neg_r8oBGYg4KbjaK.CPZF_T72YNL5OPMeJXKubl"};var cpo = document.createElement('script');cpo.src = '/cdn-cgi/challenge-platform/h/b/orchestrate/chl_page/v1?ray=9134e8ab0ff4490c';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, "\/10012903\/causes-of-delays-in-construction-projects-a-case-study-for-petrochemical-industry-of-iran?__cf_chl_rt_tk=kIRD.apfLTWNGFXiOKEZrlwU9khfabgCLSLQHcax44o-1739786200-1.0.1.1-7.ugnjscGrG.9iixoj8C8gVgk4qAZRVPPP4whbyhXTc" + window._cf_chl_opt.cOgUHash);cpo.onload = function() {history.replaceState(null, null, ogU);}}document.getElementsByTagName('head')[0].appendChild(cpo);}());</script></body></html>