Question

Short note on setting on cement in chemistry

Answer 1

$\huge\mathfrak{Answer,:-}$

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♠️ Cement was discovered by Joseph Aspidin .

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• ♠️ Composition of cement:- 50 -60% lime
• SiO2 = 20 to 25%
• Al2O3 = 5 to 20%
• MgO = 2 to 3%
• Fe2O3 = 1 to 2%
• SO3 = 1 to 2%

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♠️ Low Composition of lime then low strength of cement.

♠️ Excess composition of lime forms cracks.

♠️ Addition of gypsum decrease the setting time.

♠️ Excess of Al2O3 leads to quick setting of cement.

$\huge\mathfrak{Thank you :)}$

Answer 2

Answer:

Cement was discovered by Joseph Aspidin .

➖➖➖➖➖➖➖➖➖➖➖➖

♠️ Composition of cement:- 50 -60% lime

SiO2 = 20 to 25%

Al2O3 = 5 to 20%

MgO = 2 to 3%

Fe2O3 = 1 to 2%

SO3 = 1 to 2%

➖➖➖➖➖➖➖➖➖➖➖➖➖

♠️ Low Composition of lime then low strength of cement.

♠️ Excess composition of lime forms cracks.

♠️ Addition of gypsum decrease the setting time.

♠️ Excess of Al2O3 leads to quick setting of cement.

thank you

Explanation:

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