PPC or PORTLAND POZZOLANA CEMENT

PPC Portland Pozzolana Cement

Portland Pozzolana Cement 1. Pozzolana Pozzolana is a volcanic powder found in Italy near Vesuvius A pozzolanic material is essentially a siliceous or aluminous material which possess no cementitious properties. But it has the property when it combined with lime to produce a stable pozzolana compound it has definite cementitious properties. In the presence of … Read more

6 SPECIAL MATERIALS USED IN CONCRETE CONSTRUCTION

Special Materials in Concrete Industry 1. Ferrocement Ferrocement is a type of reinforced concrete composed of concrete with small aggregate (or coarse cement mortar), 12 to 30 mm thick, reinforced with a minimum of two layers of small diameter, orthogonally woven wire mesh separated by 3 to 6 mm diameter galvanized spacer wires or weld … Read more

33 MUST HAVE CHECKS FOR MAINTENANCE OF BATCHING PLANT

MAINTENANCE OF CONCRETE BATCHING PLANT

Maintenance of Ready-Mixed Concrete Batching Plant For an effective production & delivery of concrete, all plant & equipment should be maintained in a clean and efficient working condition. To achieve this, checklists are used by the batching plant personnel. These checklists include daily checks, weekly checks, monthly checks and quarterly checks. Checklists must be prepared … Read more

WHAT IS THE PRINCIPLE BEHIND PRESTRESSED CONCRETE?

Prestressed concrete principle and application

Prestressed Concrete Prestressed concrete is a modified form of reinforced concrete. it not only eliminates the weakness of concrete, but also makes it possible to take full advantage of compressive strength of concrete. The term “Prestressed Concrete” is applied to those reinforced concrete members in which concrete is subjected to compressive stresses, before the external … Read more

WHAT TO CONSIDER WHILE USING PPC, BFSC OR MINERAL ADMIXTURE IN CONCRETE?

point to consider while using mineral admixture in concrete

Points to Consider Mixing of mineral admixtures with OPC at site should not normally be permitted. However for projects requiring use of blended cement from durability and strength considerations, which is not available from the cement manufacturer blending may be permitted through a specific facility created at site with complete automated process control to achieve … Read more

WHAT ARE THE MINERAL ADMIXTURES USED IN CONCRETE?

mineral admixuture-Metakoalin

The following 4 mineral admixtures can be used for making concrete. Rice husk ash Metakaolin Silica fume Fly as 1. Rice Husk Ash It is obtained by burning the rice husk in a controlled manner without causing environmental pollution. This is generated in huge quantity in the rice shelters and each tone of paddy produce … Read more

READY MIXED CONCRETE – WHAT INFORMATION TO BE SUPPLIED BY THE PURCHASER?

Ready Mixed Concrete

Information to be Supplied by the Purchaser It is recommended that a meeting must be held between the purchaser and the producer of concrete. In the meeting the following points should be discussed. Details of concrete mix Use of concrete Type of structure Performance requirement Notice to be given prior to delivery Delivery rate Purchaser’s … Read more