A study of high calcium limestone around Lenggong Perak to produce type-G Portland cement

This project carried out on Portland cement using high calcium limestone, and other
minor raw materials such as clay and iron ore. The raw materials were obtained
from a local rock in Lenggong in Perak, Malaysia. Composition of raw materials
and mineral phase were investigated or tested by XRF. Portland cement is primary
construction materials widely used in oil and gas wells specially class G Portland
cement.
Portland cement at least to comply with the standards set by the American
Petroleum Institute (API). Chemical compositions of limestone, clay, iron ore and
raw materials were determined. Modulus of mixture of raw materials was fixed in
IM is 1.7, SM is 2.4 and LSM is 9.4. Raw materials were crushed and ground to fine
powder to form a mixture raw material and then put in furnace where it is heated
and burning to form Portland cement clinker.
From the expriremmtal results, the four main Portland cement are CS3, CS2, C3A
and C4AF.
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