20+ DIFFERENT TYPES OF CONCRETE AT A GLANCE
Distinctions are drawn between different types of concrete based on the composition, additives, surfaces, production process, or the nature of the reinforcement.
Special Concrete
PPC or 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
NO FINES CONCRETE – ADVANTAGES & LIMITATIONS
No Fines Concrete No fines concrete is one type of light weight concrete. As the name indicates, this a concrete mix without fine aggregate or sand. This type of concrete consists of only water, cement and coarse aggregate. Important Notes on No fines Concrete Normally coarse aggregates passing 20 mm sieve and retained on 10 … 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 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 SCC OR SELF COMPACTING CONCRETE?
Self Compacting Concrete (SCC) The term SCC in concrete technology means self compacting concrete. In this type of concrete you do not need to use any kind of vibrator to compact it and still you can achieve a concrete which is better and more reliable and uniform in quality and having high degree of performance. … Read more
WHAT IS THE PRINCIPLE BEHIND PRESTRESSED CONCRETE?
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?
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?
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?
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