TY - BOOK AU - Tunio, Zaheer Ahmed AU - Department Of Civil Engineering TI - Experimental Investigation On Strength Of No-Fines Concrete With Various Coarse Aggregate Gradations (ME Thesis) PY - 2015/// CY - Nawabshah PB - QUEST N1 - ABSTRACT The self-weight of the structures consist major portion of their overall weight. The use Of lightweight concrete not only reduces the weight but also results in the reduction in the sections of the structural elements resulting in the economy. The concrete without fine aggregates is termed as 'no-fines concrete', which is one of the types of the light weight concrete family. Normally no-fines concrete (NFC) is produced with the coarse aggregate of uniform gradation. This experimental study is focused to use the coarse aggregate of different gradation in no-fines concrete. The effect of the coarse aggregate gradation is studied in terms of compressive strength and tensile strength of NFC. A fixed cement- to-aggregate proportion 1:6 is adopted during this study. in all 10 gradations of the caosrse aggregates ranging between pacific maximum and minmum size are used i.e, 7mm-4.75mm, 10mm-4.75mm, 10mm-7mm, 13mm- 4.75mm, 13mm-7mm, 13mm-10mm, 20mm-4.75mm, 20mm-7mm, 20mm-10mm, 20mm-13mm. The water-cement ratio is maintained at fixed value 0.40 throughout the study. The cube and cylinder specimens of standard sizes are cast to determine compressive strength and tensile strength (cylinder splitting) respectively. Entire the specimens are cured in water up to the age of testing (28 days). The results of the study reveal the substantial effect of the gradation of coarse aggregates on strength properties (compressive and tensile strength) of no-fines concrete UR - https://tinyurl.com/2p82jzmf ER -