Reinforced Cement Concrete:
The steel reinforcement bars in RCC provide additional strength to the concrete, which helps to resist tensile forces. The steel bars are placed in the formwork before the concrete is poured, and they are held in place by spacers or supports. The steel bars and the concrete work together to resist the various loads that the structure will experience over its lifetime.
The process of preparing RCC involves the following steps:
Design: The structural design is created by an engineer, which includes the required strength, dimensions, and reinforcement details.
Formwork: The formwork is prepared using timber or steel to the exact shape and dimensions of the required RCC member.
Reinforcement: The steel bars are placed in the formwork as per the design specifications and held in place using spacers or supports.
Pouring: The concrete is mixed in a batching plant or on-site and then poured into the formwork. The concrete is compacted using a vibrator or tamping tool to ensure that there are no voids or air pockets.
Curing: The RCC member is cured for a minimum of 28 days to allow the cement to hydrate and harden, which increases its strength and durability.
RCC is known for its strength, durability, and ability to resist weathering and natural disasters. It is widely used in construction due to its versatility, ease of construction, and low maintenance requirements. RCC is also resistant to fire, which makes it a long-lasting and cost-effective solution for many construction projects.
Plain Cement Concrete
Cement, fine aggregates (sand), and coarse aggregates (gravel or crushed stone) are combined in a specific ratio to create plain cement concrete (PCC).It is a basic construction material used in a wide range of applications, including the construction of foundation, walls, floors, and pavements.
PCC is generally used in areas where there is no direct exposure to weather or other environmental factors. It provides a stable base for the construction of structures and is an important component in the overall structural design. The strength and durability of PCC depend on the quality of the materials used, the mixing ratio, and the curing process.
The mixing ratio of PCC is generally specified by the engineer or designer based on the specific requirements of the project. The ratio of cement to sand to coarse aggregates is usually in the range of 1:2:4 to 1:3:6. Water is added to the mix to achieve the desired consistency.
The process of preparing PCC involves the following steps:
Preparation of the surface: The surface on which PCC is to be laid should be properly cleaned and leveled.
Preparation of the mix: The required quantities of cement, sand, and coarse aggregates are measured and mixed in a concrete mixer or by hand using shovels.
Laying the PCC: The mix is then poured onto the surface and spread evenly using shovels or rakes. It is then compacted using a vibrating machine or a tamping tool to ensure that there are no voids or air pockets.
Curing: The PCC is then cured for a minimum of 7 days to allow the cement to hydrate and harden, which increases its strength and durability.
PCC is a basic construction material used in a wide range of applications, including the construction of foundation, walls, floors, and pavements. It is a mixture of cement, fine aggregates, and coarse aggregates, with the mixing ratio determined by the specific requirements of the project. Proper preparation, laying, and curing of PCC is critical to ensure its strength and durability.
Good information
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ReplyDeleteVery good Sanket. Very informative
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