JAKARTA, July 16 (Reuters) - Indonesian state construction firm PT Wijaya Karya Tbk  
   WIKA.JK
    plans to launch an initial public offering of its property unit and issue bonds over the next two to three years to fund its aggressive expansion, its chief executive told Reuters.     Wijaya Karya plans to sell a 25-30 percent stake in PT Wijaya Karya Realty (Wika Realty) by the end of 2015 or early 2016, Bintang Perbowo said, adding it was too early to comment on how much the firm will raise, he added.     Wika Realty's IPO will come after another unit of Wijaya Karya, building materials maker PT Wijaya Karya Beton Tbk  
   WTON.JK
   , made a strong trading debut on the Indonesian stock exchange in April.  
   ID:nL3N0N00PW
        Wijaya Karya also aims to sell bonds worth 600 billion rupiah ($51.3 million) at the end of this year and raise a further 2 trillion rupiah through a rights issue in 2016.     "After the election, whoever the president is, the building of infrastructure in Indonesia will be very important because we are lagging behind our neighbouring countries and Wika will take a huge position," Perbowo said.     Wijaya Karya hopes to invest in projects such as a cargo port and a power plant in Indonesia, Perbowo added.     Indonesia, the world's third-biggest democracy, held its presidential election on July 9 and the official result is expected around July 22. Both candidates, Jakarta Governor Joko "Jokowi" Widodo and ex-general Prabowo Subianto, have outlined big plans to develop Indonesia's weak infrastructure.     ($1 = 11,690.00 rupiah)   (Reporting by Fathiyah Dahrul; Writing by Eveline Danubrata Editing by Matt Driskill)  ((eveline.danubrata@thomsonreuters.com)(+62-21-29927603)(Reuter s Messaging: eveline.danubrata.thomsonreuters.com@reuters.net))  Keywords: WIJAYA KARYA/