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Portland Pozzolana Cement

Portland Pozzolana Cement
July 12
16:25 2014
Portland Pozzolana Cement Portland Pozzolana Cement Portland Pozzolana Cement Portland Pozzolana Cement

Portland Pozzolana Cement

The pozzolana is a volcanic powder. It is found in Italy near Vesuvius. It resembles surkhi which is prepared by burning bricks made from ordinary soils. It can also be processed from shales and certain types of clays. The percentage of pozzolana material should be between 10 to 30.

Advantages of Portland Pozzolana Cement (PPC):

(i) It attains compressive strength with age.

(ii) It can resist action of sulphates.

(iii) It evolves less heat during setting.

(iv) It imparts higher degree of watertightness.

(v) It imparts plasticity and workability to the mortar and concrete prepared from it.

(vi) It is cheap.

(vii) It offers great resistance to the expansion.

(viii) It possesses higher tensile strength.

Disadvantages Portland Pozzolana cement (PPC):

(i) Its compressive strength in early days is less.

(ii) It possesses less resistance to the erosion and weathering action.

Portland Pozzolana Cement (PPC) is used to prepare mass concrete of lean mix and for marine structures. It is also used in sewage works and for laying concrete under water.

Get more informaton on Types of Cement

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