Question

1. Explain the factors affecting the strength of concrete by drawing figures. Write clean please!!!!!

Answer 1

No-3 97 pago Kupee y compación inadequarto comptition leading to ai voied content of 5% 4 5% & of 20% of strength of 30% 4 55% , respectively. result in a class oro 1 î 0.87 effect of compaction on 0.6 strength ratio 0.4 the strength concete 0.2 0.0 0.75 0.8 0.85 0.9 0.95 venity ratio = Netual demaitky Fully competed denacity
Page no 1&2.
T # Factory affecting strength of concrete Page No - 1 water cement ratio- . The reuma MAA an cement un Corciete ar the void volume meagwe weates us fech consete uš related durity to the relief emfity pore space uñi havdoned conesate . Luiñilevdy, the rele feche consete no related dosedly do the solar volume un hardened Water – cemerd ratzó is therefore relative to the xolid vel wh hadened cement paste, pees up as the reîd volume geeo deuen. do, the verses the colorato, the loueer uố the vocal volume - Holist volume ratio, stronger & its strength & care the hardened concrete In a hos dened state conosete, strength wo wirereoly properlomál to the colc ratio . > Vibration preoue stesngth Hand compaction Compresowe -Fully compreeted sonorite water, cement ratio 24 a cube 150 mm of concrete us to have It us abserved that 25% more strength than a Size of peamen - expected cylinder Apecimen. cube us deseosed comprecrue et stence to unésease Stress situation - 37 Concrete under triaxial state offers more reaistance of fails only after ichith justifiés eresziel compression testing popejeleable deformations,

47 Menituse condition No,-2 Page q spermen dry cubes abringth · Moisture content us concrete forcvideo ' dubrication chewe dieping elinkage of bond falleve leading to smaller may the shear strength. 57 As veids - IC Skength a correste deseases reith the increase in loage of an verick to age loss of strength 90 20- 707 10+ 50- 40+ 30 20 10 0 10 by Rate of looding - 20 30 alr veids - percentage ettength conesete uñuecases with the increase in rate of loading of loading for creep the uncréase of stength leith note 4 loading provides evidence for the At low rates there ui more time to eccur , so that theory that failure occuss at diniting values of strain cement - Com osete gauris Houcevers stength with Initially strength wo mose, - age. rothe then streso, 7 Age Age of age developeed u the role og prouin is athength duminið hes enth 3} Clement aggregates ratio Provided all the other factors pompactang fotos kept constant & kept பார்தகாப்பு, aggregate radio ,the iltimate strength will uncrease to some 80 cement 60 0.65 Compressie est. (N/mm2) to 0115 0.83 20 019 extent. 0 IN 33.5 4.5 ។ Aggregate - cement ratio by 5.5