smasPaKkmµrbs;ebtug

Concrete Mix design

viFI eRdW Methode Dreux

smtßPaBrbs;ebtug• kMnt;eday³1- kMritrav ¬Edlvas;eday ]bkrN_GaR)am tageday sl¦2- PaBFn;mFümrbs;ebtug enAGayu28éf¶ fcm28

EdlTajecj BIPaBFn;pÞal; fck ¬PaBFn;KNnarbs;ebtug¦ eday rUbmnþxageRkam³

28cm ckf f k

• k CatMélsßitiedIm,IbMElg BI PaBFn;mFüm fcm eTA PaBFn;pÞal; fck

• sMrab; RdW

• sMrab; Eurocode

3 ; 30ckk MPa f MPa

8k MPa

5 ; 30ckk MPa f MPa

suIm:g; nig r)ayRKUs• suIm:g; ³ CaGgÁFatubnSI EdlkMnt;eday PaBFn;sgát; c28

• r)ayRKUs ³RKUsman\TæiBldl; PaBFn;mFümrbs;ebtug. \TæiBlenH tageday emKuN G EdlGacKNnatamry³BiesaFn¾ nig rUbmnþxageRkam

282

28

cm

cc

c w v

fGV

V V V

• Vc, Vw, Vv CamaDrbs; suIm:g;/ Twk nig xül;hM kñúgmYyEmRtKUbebtug• ebI G minsÁal; eyIgGacyk G=4.9.

CMhankñúgkarkMnt;smasPaBebtugkMnt; pleFob

w/c2

28 28c

cm cc w v

Vf GV V V

KNnaTwk W nig

suIm:g; C

KNnal,ayRKYs

¬xSac; nig RKYs¦

28

28

c cm

c w v c

V fcV V V G

1.w w w

c c c

VW cC V c

' w vW W V

' 1.w

c

W cC c

eyIgsÁal; kMritrav sl

Twklay W nig xül;hM

Vv' w vW W V

KNna C

rYc epÞógpÞa

t; PaBcuHs

Mrug eFobnwg RkahVIk

KNnamaD l,aysuIm:g

; Vpaste paste v

c w a

C W AV V

KNnamaD l,ayRKYs31G s pasteV V m V

BIsmamaRt G/S rWsÁal;

VG/Vs

KNnam::as; G,S

edayeRbI tarag nig RkahVIk

maDxül; kñúg 1m3

kMritrav

tMélkMritra

v

TMhMRKab;Gtibrmarbs;RKYs

D = 10 mm D = 16mm D = 25 mm

eKak 1-4 cm 35 ± 20 29 ± 18 22 ± 13

Tn; 5-9 cm 23 ± 12 19 ± 10 15 ± 7

rav 10-15 cm 20 ± 10 16 ± 9 12 ± 7

ravxøaMg

≥ 16cm 12 ± 9 10 ± 8 8 ± 6

brimaNTwklay CaGnuKmn¾ én

kMritrav

brimaNTwklay CaGnuKmn¾ én

kMritrav

brimaNTwklay CaGnuKmn¾ én

kMritrav

]TahrN_1- cUrrksmasPaB rbs; ebtugEdl man

PaBFn;mFüm fcm28=27MPa nig man kMritrav 8cm. edaydwgfa

vimaRtGtibrma rbs;RKYsKW D=25mm. suIm:g; man PaBFn; c28=44MPa

G=4.9w = 1 kg/l; g = 2.65 kg/l; c = 3.15 kg/l

2- cUrrksmasPaB rbs;ebtug xagelI ebI eyIgeRbI water-reducing admixture, A/C=0.5%. a = 1.8 kg/l

]TahrN_3- cUrrksmasPaB rbs; ebtugEdl man

PaBFn;mFüm fcm28=60MPa nig man kMritrav 17cm. edaydwgfa

vimaRtGtibrma rbs;RKYsKW D=25mm. suIm:g; man PaBFn; c28=52.5MPa

G=4.9w = 1 kg/l; g = 2.65 kg/l; c = 3.15 kg/l, a = 1.8 kg/l

ebI eyIgeRbI water-reducing admixture .