What is difference between lean concrete and PCC?

The main difference between lean and PCC concrete is that lean concrete contains less cement compared to the water content present in it. This means, when compared to plain cement concrete (PCC), the lean concrete has a smaller ratio of cement to water content.

What is a lean concrete?

Lean concrete is that concrete which has high aggregates to cement ratio. In technical terms ,if the cement content of the mix falls out to be lesser than 10 percent than the mix is called as lean concrete mix. The higher the aggregate / cement ratio, the more the concrete bends.

What is difference between PCC and CC?

PLAIN CEMENT CONCRETE (PCC): – It is also called Cement Concrete (CC) or Binding Concrete. This is a construction material which consists of Cement, Sand, Aggregate (Coarse and Fine) , Water and Admixtures. It is used for providing a rigid, level space and impervious bed to RCC in foundation.

What is the PCC concrete?

Reinforced concrete (RC), also called reinforced cement concrete (RCC) and ferroconcrete, is a composite material in which concrete's relatively low tensile strength and ductility are compensated for by the inclusion of reinforcement having higher tensile strength or ductility.

What is lean concrete and rich concrete?

Concrete mixture

A rich mixture contains a high proportion of cement. A lean mixture is a mixture of concrete or mortar with a relatively low cement content. A harsh mixture of concrete is one without mortar or aggregate fines, resulting in an undesirable consistency and workability.

Lean Production

Why lean concrete is used?

Lean concrete serves the purpose of providing a uniform surface to the concrete foundation. This also helps to prevent the direct contact of the foundation concrete from the soil. This is a good choice to provide a flat bottom for a terrain that is uneven or dirty.

How thick is lean concrete?

Lean concrete: Its role is to provide the uniform surface to the foundation concrete and to prevent the direct contact of foundation concrete with the soil. Its thickness is 5 cm. It is mixed at 150 kg/m³.

Why is PCC used in construction?

The main reason of providing PCC is to provide a rigid impervious bed to RCC in the foundation before starting any RCC or masonry work directly on the excavated soil, PCC is done to form a leveled surface and to avoid laying concrete on soil directly so as to avoid mixing with soil and also to prevent soil extracting ...

What are the different types of concrete?

What is the density of PCC?

Not much differing from the RCC, the density of Portland Cement Concrete (PCC) is 2400kg/m3 or 24KN/m3. The compactness of PCC defined by 24KN/m3 of density makes PCC be used as a foundation cement concrete.

Is PCC waterproof?

The surface course is the layer in contact with traffic loads and is made of PCC. It provides characteristics such as friction (see Figure 3), smoothness, noise control and drainage. In addition, it serves as a waterproofing layer to the underlying base, subbase and subgrade.

Is PCC required for plinth beam?

confirms the plinth level of the building. After completing the plinth filling with murum and soiling up to the designed level, P.C.C. is to be done.

Where is PCC used in construction?

Applications of Plain Cement Concrete: PCC is mostly found in footings, grade slabs, and concrete roads. When the underlying soil is weak and flexible, brick flat soling is provided under PCC. Cement: Normally, the Portland cement is utilized as bonding material in PCC.

What PSI is lean concrete?

Lean concrete base (LCB) is made with concrete aggregate and sufficient cement (about three sacks) to achieve a strength of at 500 psi (3.5 MPa) in seven days.

Is lean mix concrete strong?

This type of concrete mix also provides a strong, stable base for the foundations. Domestic Patios – A lean mix is excellent as a sub-base in domestic patios, as it helps to level off the surface, providing a more stable solution than compacted earth.

Is lean concrete blinding?

Lean concrete is lean concrete. Relatively low cement content. Blinding concrete can be virtually any common concrete. Even concrete rejected due to relatively low slump and water added.

What are the 4 main types of aggregates?

Aggregate is a landscaping term that's used to describe coarse to medium grain material. The most common types of aggregate that are used in landscaping include: crushed stone, gravel, sand, and fill. Varying in material and stone size, each type can have its own purpose when it comes to landscaping projects.

What are the 3 types of foundations?

Foundation types vary, but likely your house or home's addition does or will have one of these three foundations: full or daylight basement, crawlspace, or concrete slab-on-grade.

What type of concrete is used for walls?

All-Purpose Cement: When in doubt, all-purpose cement is a popular option. This is ideal for repairing foundation walls, laying sidewalks, creating steps and setting posts.

Which grade cement is best for PCC?

OPC cement can also be recommended for the construction of columns, beams, etc. On the other hand, PPC cement is made up of 75-77% cement clinker, 20% flyash and 3-5% gypsum. They are commonly used for small residential construction. PPC is recommended for brick masonry, plastering, tiling and waterproofing works.

Which cement is best for PCC?

Portland Pozzolana Cement (PPC):

PPC cement is generally used for plastering, brick masonry and waterproofing works. PPC has a lower heat of hydration and it is prone to fewer cracks compared to OPC. PPC has lower strength than OPC but PPC provides better workability and finishing than OPC.

What is PCC size?

The size of the aggregate used for PCC varies from 10-12 mm to 40 mm depending on where they are to be used. If the size of the aggregate is more, it results in the reduction of cement consumption.

What is PCC sidewalk?

Portland cement concrete (PCC) pavements (or rigid pavements) consist of a PCC slab that is usually supported by a granular or stabilized base, and a subbase. In some cases the PCC slab may be overlaid with a layer of asphalt concrete.

How do I calculate how much lean concrete I need?