UMM Institutional Repository: No conditions. Results ordered -Date Deposited. 2019-07-21T00:00:10ZEPrintshttp://eprints.umm.ac.id/images/sitelogo.pnghttp://eprints.umm.ac.id/2012-05-29T03:27:48Z2012-05-29T03:27:48Zhttp://eprints.umm.ac.id/id/eprint/6066This item is in the repository with the URL: http://eprints.umm.ac.id/id/eprint/60662012-05-29T03:27:48ZPENGARUH RASIO TULANGAN PADA PELAT PRACETAK TERHADAP POLA RETAK DAN KAPASITAS LENTUR (Studi Penelitian)With technology developing in construction especially using precast plate so in this research can use as one of advise to practitioner, researcher, and education of institution. This research showed variation effect of reinforcement ratio for crack pattern and deflection capacity in precast plate. This research has done in concrete technology laboratory University Muhammadiyah of Malang. The implementation of this research envolpe of many stages ; testing concrete compiler and strength test of steel, concrete of precast plate. Curing of precast plate with covering wet gunny sack in 28 days and then doing test. That’s Given variation of reinforcement ratio as big as 0,84 %, 1,21 % and 1,69 % in (100x50x8) cm dimention of plate. The result of this research was showing that if more bigger of reinforcement ratio absolutly more bigger ultimite bending moment. In one way slab and two way slab (x direction), the biggest get in ρ = 1,69 % (each increase 24,36 % dan 28,39 % than ρ = 0,84 %), while (y direction) the value is half of (x direction). More bigger of reinforcement ratio ρ = 1,69 %, distance of crack more short than ρ = 0,84 %. Besides, long crack and increasing long of crack in ρ = 1,69 % more short than ρ = 0,84 %.ENDIK PURWANTO