Cellular Concrete
It is a light weight concrete produced by introducing large voids in the concrete or mortar. Its density varies from 3 […]
Plain concrete, commonly known as concrete, is an intimate mixture of binding material, fine aggregate,
coarse aggregate and water. This can be easily moulded to desired shape and size before it looses
plasticity and hardens. Plain concrete is strong in compression but very weak in tension. The tensile
property is introduced in concrete by inducting different materials and this attempt has given rise to
RCC, RBC, PSC, FRC, cellular concrete and Ferro cement. In this chapter proportioning, mixing,
curing, properties, tests and uses of plain concrete is dealt in detail. The other improved versions of
concrete are explained and their special properties and uses are pointed out.
It is a light weight concrete produced by introducing large voids in the concrete or mortar. Its density varies from 3 […]
The term ferro-cement implies the combination of ferrous product with cement. Generally this combination is in the form of steel wires
It is a naturally available metal in the form of ores which contain small amount of iron and sulphur. After
Plain concrete possesses deficiencies like low tensile strength, limited ductility and low resistance to cracking. The cracks develop even before loading.
Major ingredients of concrete are: 1. Binding material (like cement, lime, polymer) 2. Fine aggregate (sand) 3. Coarse aggregates (crushed
Cement is the binding material. After addition of water it hydrates and binds aggregates and the surrounding surfaces like stone
The following steps are involved in the concreting: 1. Batching 2. Mixing 3. Transporting and placing and 4. Compacting. 1.
Curing may be defined as the process of maintaining satisfactory moisture and temperature conditions for freshly placed concrete for some specified
Concrete has completely different properties when it is the plastic stage and when hardened. Concrete in the plastic stage is also
Workability This is defined as the ease with which concrete can be compacted fully without seggregating and bleeding. It can