Pozzolanic Cement

Pozzolanic cements that are also called PPC cement , are mixtures of Portland cement and a pozzolanic material that may be either natural or artificial. The natural pozzolanas are mainly materials of volcanic origin but include some diatomaceous earths.

Hardening of pozzolanic cement pastes can result from the reaction between pozzolana and the lime that is added to the mix as hydrated lime or is produced following hydration of Portland cement silicates. The pozzolanic reaction does not alter cement clinker hydration; it complements and integrates the hydration process because it results in a lower portlandite content and an increase in calcium silicate hydrates.

Pozzolanic Cement is Used in:

Hydraulic structures, marine structures, construction near the sea shore, dam construction etc.
Pre-stressed and post-tensioned concrete members.
Masonry mortars and plastering.
Decorative and art structures.
Manufacture of precast sewage pipes.

Pozzolanic cement has very good resistance against sulphate attack hence is used in hydraulic structures, marine structures, construction near the sea shore, dam construction etc. It reduces the carbon monoxide emission from the concrete making it environmental friendly. As the Pozzolano materials are very fine, it can fill gaps between the reinforcement and aggregate , thus reducing the shrinkage, honeycomb formation and bleeding can be reduced, which in turn increases the strength and durability of concrete.

Specification	Typical Value / Description
Product Name	Pozzolanic Cement
Cement Type	Portland-Pozzolan Cement
Main Components	Portland Clinker, Pozzolanic Materials, Gypsum
Pozzolanic Material	Natural or Artificial Pozzolan
Appearance	Fine Gray Powder
Fineness	Typically ≥ 300 m²/kg (Blaine)
Initial Setting Time	Typically ≥ 45 minutes
Final Setting Time	Typically ≤ 600 minutes
Compressive Strength	Grade-dependent; commonly 32.5, 42.5 or 52.5 MPa
Soundness	Typically ≤ 10 mm
Chloride Content	According to applicable cement standard
Applicable Standards	EN 197-1, ASTM C595 or equivalent national standards

IF YOU ARE WILLING TO BUY POZZOLANIC CEMENT FROM VERIFIED IRANIAN SUPPLIERS, PLEASE SCROLL DOWN AND SUBMIT YOUR REQUEST.

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FAQ Pozzolanic Cement

Pozzolanic Cement is a blended cement made by combining Portland cement clinker and gypsum with pozzolanic materials such as natural volcanic ash, fly ash or other reactive siliceous and aluminous materials.

It is widely used in concrete production, foundations, structural construction, masonry, infrastructure projects, dams, bridges, marine construction and other applications where good durability and resistance to aggressive environments are required.

Depending on the applicable standard and manufacturer, Pozzolanic Cement can be supplied in different strength classes such as 32.5, 42.5 and 52.5, with specific grades selected according to construction requirements.

Pozzolanic Cement can provide good long-term strength development, improved durability, reduced permeability and better resistance to certain chemical environments while also allowing the use of supplementary cementitious materials.

For wholesale export, Pozzolanic Cement can commonly be supplied in bulk tankers or packed in moisture-resistant bags such as 25 kg, 40 kg or 50 kg bags, depending on the buyer's requirements and destination regulations.

You can find suitable Iranian manufacturers and suppliers of Pozzolanic Cement through Irancorps, which helps international buyers connect with Iranian producers and exporters according to their product and purchasing requirements.