01874nam a22001097a 4500100007200000245013600072260003000208300001200238500144400250700003701694856003301731  aMemon, Muneeb Ayouba14MCE04aSupervisor Prof. Dr. Noor Ahmed Memon  aExperimental Study To Investigate The Strength Properties & Unit Weight Of No-Fines Concrete With Un-Crushed Aggregate  (ME Thesis)  aNawabshah:bQUEST,c2016.  a112P, :  aABSTRACT

The Self weight of the structures consists major portion of their overall weight. The use of lightweight concrete not only reduces the weight but a l so results in the reduction i n the
sections of the structural elements resulting in the economy. The concrete without fine aggregates is term ed as 'no-fines concrete', which i s one of the types of the lightweight concrete family. Normally no-fines concrete (NFC) i s produced with the crushed coarse aggregate of uniform gradation. Th is study is aims to investigate experimentally the effect of using uncrushed coarse aggregate on unit weight (density) and strength properties of no-fines concrete. The strength properties investigated are compressive strength, spilt cylinder tensile strength and flexural strength (Modul us of rupture). Four gradations   of uncrushed coarse aggregates   ranging between   pacific   maxim um   and minimum size are used i.e. 5.5mm-4.75m m, 10mm-4.75mm, 20mm-4 .75mm and 25mm- 4.75mm Fixed cement: aggregate ratio I :6 is adopted for No-fines concrete while l :2:4 ratio is adopted for Normal concrete.  The water cement ratio is maintained at a fixed value 0.4 for No-fines concrete and 0.5 for normal concrete thought the study. The results values are compared  i n terms of effect of gradation of uncrushed coarse aggregates in no- fines concrete   itself   and   normal   concrete with same gradation   of uncrushed   coarse
aggregates.
  aDepartment Of  Civil Engineering  uhttps://tinyurl.com/ppd392w5