The average composition of portland cement is

Question

The average composition of portland cement is (A) CaO: 40 - 50 %, SiO2: 30 - 40 % , Al2O3, Fe2O3: 10 - 20 % (B) CaO: 50 - 60 %, SiO2: 20 - 25 %, Al2O3: 5 - 10 %, MgO: 2 - 3 %, Fe2O3: 1 - 2 % and SO3: 1 - 2 % (C) SiO2: 40 - 50 %, CaO: 30 - 40 %, Al2O3: 10 - 20 % (D) CaO: 50 %, SiO2: 50 %

Tardigrade Admin · Accepted Answer

Port land cement consists of raw materials mainly compounds of lime mixed with silica and alumina.

C a O \to 50 - 6096

S i O_{2} \to 20 - 2596

A l_{2} O_{3} \to 5 - 10%

F e_{2} O_{3} \to 1 - 29

M g O \to 2 - 396

S O_{3} \to 1 - 2%

and few amount of oxides of iron, magnesium and sulphur.

Q. The average composition of portland cement is

$C a O : 40 - 50%$ , $S i O_{2} : 30 - 40%$ , $A l_{2} O_{3}$ , $F e_{2} O_{3} : 10 - 20%$

$C a O : 50 - 60%$ , $S i O_{2} : 20 - 25%$ , $A l_{2} O_{3} : 5 - 10%$ , $M g O : 2 - 3%$ , $F e_{2} O_{3} : 1 - 2%$ and $S O_{3} : 1 - 2%$

$S i O_{2} : 40 - 50%$ , $C a O : 30 - 40%$ , $A l_{2} O_{3} : 10 - 20%$

$C a O : 50%$ , $S i O_{2} : 50%$

Port land cement consists of raw materials mainly compounds of lime mixed with silica and alumina.
$C a O \to 50 - 6096$
$S i O_{2} \to 20 - 2596$
$A l_{2} O_{3} \to 5 - 10%$
$F e_{2} O_{3} \to 1 - 29$
$M g O \to 2 - 396$
$S O_{3} \to 1 - 2%$
and few amount of oxides of iron, magnesium and sulphur.

Q. The average composition of portland cement is

CaO:40−50%, SiO2​:30−40% , Al2​O3​, Fe2​O3​:10−20%

CaO:50−60%, SiO2​:20−25%, Al2​O3​:5−10%, MgO:2−3%, Fe2​O3​:1−2% and SO3​:1−2%

SiO2​:40−50%, CaO:30−40%, Al2​O3​:10−20%

CaO:50%, SiO2​:50%

Port land cement consists of raw materials mainly compounds of lime mixed with silica and alumina. CaO→50−6096 SiO2​→20−2596 Al2​O3​→5−10% Fe2​O3​→1−29 MgO→2−396 SO3​→1−2% and few amount of oxides of iron, magnesium and sulphur.

$C a O : 40 - 50%$ , $S i O_{2} : 30 - 40%$ , $A l_{2} O_{3}$ , $F e_{2} O_{3} : 10 - 20%$

$C a O : 50 - 60%$ , $S i O_{2} : 20 - 25%$ , $A l_{2} O_{3} : 5 - 10%$ , $M g O : 2 - 3%$ , $F e_{2} O_{3} : 1 - 2%$ and $S O_{3} : 1 - 2%$

$S i O_{2} : 40 - 50%$ , $C a O : 30 - 40%$ , $A l_{2} O_{3} : 10 - 20%$

$C a O : 50%$ , $S i O_{2} : 50%$

Port land cement consists of raw materials mainly compounds of lime mixed with silica and alumina.
$C a O \to 50 - 6096$
$S i O_{2} \to 20 - 2596$
$A l_{2} O_{3} \to 5 - 10%$
$F e_{2} O_{3} \to 1 - 29$
$M g O \to 2 - 396$
$S O_{3} \to 1 - 2%$
and few amount of oxides of iron, magnesium and sulphur.