contoh mix untuk setting time

7/25/2019 Contoh Mix Untuk Setting Time

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Contoh Perhitungan MIx Desain untuk Uji Konsistensi dan Setting Time

Data Bahan :

Fly Ash !a" #

Berat Jenis : Gs_fa 2.3:=

Berat Satuan : γ _fa 1430 kg

m3

⋅:=

PCC #

Berat Jenis : Gs_pcc 3.15:=

Berat Satuan : γ _pcc 1250 kg

m3

⋅:=

Sodium Silikat$Si%&' $ ss"#

Berat Jenis : Gs_ss 1.65:=

Berat Satuan : γ _s s 1400 kg

m3

⋅:=

Prosentase Na2O : P_Na2O 0.095:= Data Pabrik

Prosentase SiO2: P_Si2O3 0.294:= Data Pabrik

Prosentase air, (H2O) : P_airss 0.611:= Data Pabrik

Sodium (idroksida$ )a&($ sh"#

Berat Jenis : Gs_sh 1.52:=

Berat Satuan : γ _s h 1200kg

m3

⋅:=

Molarits , M : M_sh 8:= -----> Konsentrasi Larutan NaOH

Mr Berat Molekul NaOH Mr 40:= ------->Dari tabel !erio"ik unsur ki#ia

Prosentase air, (H2O) : P_airsh

M_sh Mr ⋅ kg

m3

⋅

γ _sh:= P_airsh 0.2667=

Prosentase Soli", NaOH: P_s sh 1 P_airs h−:= P_ssh 0.733=



Data *ain #

$%s& Berat So"iu# Hi"roksi"a

$%ss Berat So"iu# Silikat

$%!'' Berat P

$%a Berat *l+ s&

QW _s h W_s s+

W _fa W _p cc+:= .asio Berat Larutan lkali ter&a"a! Berat e#entius

W_ss

W_sh:= . .asio Berat So"iu# Silikat ter&a"a! Berat So"iu# Hi"roksi"a

PW_pcc

W_fa

:= P .asio Berat P ter&a"a! Berat *l+ s&

SW_air!"#

W_fa W_fcc+$ %:= S .asio Berat ir /kstra ter&a"a! Berat (*l+ as& 0 P)

γ & 1000 kg

m3

⋅:= ------> Berat Satuan ir Gs_& 1:=

W_s h W_ ss+ Q W _fa W _pcc+$ %⋅:=

W_s h W _s h⋅+ Q W _fa P W _fa⋅+$ %⋅:=

W_sh 1 +$ %⋅ W_fa Q⋅ 1 P+$ %⋅:=W_sh

W_fa

Q 1 P+$ %⋅

1 +$ %:=

W_ss

W_fa

Q 1 P+$ %⋅

1 +$ %:=

W_fa W_fcc+ W_fa 1 P+$ %⋅:=

Perhitungan +olume A,solut #

W_fa

Gs_fa γ &⋅

W_pcc

Gs_pcc γ &⋅+ W_ss

Gs_ss γ &⋅+ W_sh

Gs_sh γ &⋅+ W_&

γ &+ 1⋅=



W_fa

Gs_fa γ &⋅

W_pcc

W_faW_fa⋅

Gs_pcc γ &⋅+

W_ss

W_faW_fa⋅

Gs_ss γ &⋅+

W_sh

W_faW_fa⋅

Gs_sh γ &⋅+

W_&

W_fa W_fcc+$ %W_fa W_fcc+$ %

Gs_& γ &⋅+ 1⋅=

W_fa

Gs_fa γ &⋅P W_fa⋅

Gs_pcc γ &⋅+

Q ⋅ 1 P+

1 +

⋅ W_fa⋅

Gs_ss γ &⋅+

Q 1 P+

1 +

⋅ W_fa⋅

Gs_sh γ &⋅+

S 1 P+$ %⋅ W_fa⋅

Gs_& γ &⋅+ 1⋅=

-ika diketahui #

Q 0.35:= .asio berat larutan alkali ter&a"a! berat Se#entius

2.5:= .asio berat so"iu# silikat ter&a"a! berat So"iu# Hi"roksi"a

P 0.00:= .asio berat *la+ s& ter&a"a! berat P

S 0.20:= .asio berat air ekstra ter&a"a! berat (l+ as& 0P)

Maka berat bahan : W_fa, W_ss, W_sh, W_pcc, W_airext untuk setiap 1 m3 dapat dihitung, sbb:

'( (!f_s s Q ⋅ 1 P+$ %

1 +$ %⋅:= '((!f_ss 0.25=

'((!f _s h Q 1 P+1 + ⋅:= '((!f_sh 0.1=

'((!f_& S 1 P+$ %⋅:= '((!f_& 0.2=

Gs_fa γ &⋅ 2300 kg

m3

= Gs_pcc γ &⋅ 3150 kg

m3

= Gs_ss γ &⋅ 1650 kg

m3

=

Gs_sh γ &⋅ 1520 kg

m3

= Gs_& γ &⋅ 1000 kg

m3

=

W_fa

Gs_fa γ &⋅

P W_fa⋅Gs_pcc γ &⋅

+ '((!f_ss W_fa⋅

Gs_ss γ &⋅+

'((!f_sh W_fa⋅Gs_sh γ &⋅

+ '((!f_& W_fa⋅

γ &+ 1 m

3⋅⋅=

W_fa 1 m

3⋅

1

Gs_fa γ &⋅

P

Gs_pcc γ &⋅+

'((!f_ss

Gs_ss γ &⋅+

'((!f_sh

Gs_sh γ &⋅+

'((!f_&

γ &+

:=



W_fa 1173.589kg=

W _p cc P W _fa⋅:= W_pcc 0=

W_ss '((!f_ss W_fa⋅:= W_ss 293.397 kg=

W_sh '((!f_sh W_fa⋅:= W_sh 117.359 kg=

W_air!"# '((!f_& W_fa⋅:= W_air!"# 234.718 kg=

Data .adah untuk /engujian konsistensi dan setting time #

Dia#eter atas, Da : )a 60 m⋅:=

Dia#eter ba1a&, Db: )* 70 m⋅:=

in33i, t : # 40 m⋅:=+_&a,ah +_&a,ah

1

3π⋅ #⋅

1

4)a

2⋅

1

4)a⋅ )*⋅+

1

4)*

2⋅+ ⋅:=

+_&a,ah 0.000133 m3⋅=

-adi Berat masing 0 masing ,ahan dalam .adah #

W_fa +_&a,ah W_fa⋅ 1

m3

⋅:= W_fa 0.1561 kg=

W_pcc +_&a,ah W_pcc⋅ 1

m3

⋅:= W_pcc 0=

W_ss +_&a,ah W_ss⋅ 1

m3

⋅:= W_ss 0.039kg=

air_ss P_airss W_ss⋅:= air_ss 0.0238 kg=

W_sh +_&a,ah W_sh⋅ 1

m3

⋅:= W_sh 0.01561 kg=

air_sh P_airsh W_sh⋅:= air_sh 0.00416 kg=

air_!"# +_&a,ah W_air!"#⋅ 1

m3

⋅:= air_!"# 0.0312 kg=

-S air_sh air_ss+ air_!"#+

W _fa W _p cc+ W_ss air_ss−$ %+ W_sh air_sh−$ %+:=

-S 0.324=



Kontrol #

W_fa

Gs_fa γ &⋅W_pcc

Gs_pcc γ &⋅+

W_ss

Gs_ss γ &⋅+

W_sh

Gs_sh γ &⋅+

air_!"#

γ &+ 0.000133 m

3⋅=

0000001 &K 4

air_sh air_ss+ air_!"#+ 0.0592 kg=

contoh mix untuk setting time

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