Difference Between Bricks and Blocks?
Constructing a house, It’s a dream for every one of Us. The first question that raise in our mind,a Million dollar question is whether to use bricks or blocks for construction. Let us help you with our knowledge. Initially Lets see what’s Bricks and What’s Blocks
A bricks is an important construction material which is generally available in rectangular shape manufactured from clay. They are very popular from olden days to modern days for the House Construction. It’s Just because of its Low Cost and Durability for the Constructions.
Different types of bricks are used in masonry construction based on the material such as clay, concrete, lime, fly ash etc.
TYPES OF BRICKS USED IN HOUSE AND BUILDNG CONSTRUCTION:
Based on the manufacturing process, bricks are broadly classified into two types,
1. Sun-Dried or unburnt bricks
2. Burnt bricks
• Sun-Dried or Unburnt Clay Bricks
• Sun-dried or unburnt bricks are less durable and these are used for temporary structures, and not on house constructions.
• After mouldings, bricks are subjected to sunlight and dried using heat from sun. So, they are not that much strong and they also have less water resistance and less fire resistance. These bricks are not suitable for permanent structures of Building Construction
• Burnt Clay Bricks Burnt bricks are good quality bricks but however they also consists some defected bricks. So, burnt bricks are classified into four types and they are
First class bricks
Second class bricks
Third class bricks
Fourth class bricks
Accordingly most People, Civil Contractors, and Builders prefer the First class bricks for the Building Construction and House Construction. Here the Bricks gives the heavy quality and the resistance in the building and also during the process of Building Construction.
Fly Ash Bricks
• Fly ash bricks are manufactured using fly ash and water. These bricks have better properties than clay bricks and great resistant to freeze thaw cycles. These bricks contains high concentration of calcium oxide which is used in cement production, thus it is also called as self-cementing brick. Fly ash bricks are lightweight and thus it reduces self-weight of structures.
• This is not in the usage, and are used very rarely used in the light weight construction.
Concrete bricks are manufacturing using concrete with ingredients as cement, sand, coarse aggregates and water. These bricks can be manufactured in sizes as required.
Engineering bricks have high compressive strength and are used special applications where strength, frost resistance, acid resistance, low porosity is required. These bricks are commonly used for basements where chemical or water attacks are prevalent and for damp proof courses
POINTS TO BE NOTED WHILE HOUSE CONSTRUCTION OF BRICK MASONRY
• Use bricks for house construction of good quality with uniform colour, well burnt, with exact shape and size.
• Before using the bricks in all the masonry in house / building construction, they should be soaked in water for 2 hours so that 2bricks do not absorb water from the mortar.
• Construction of brick wall should start from the end or corner.
• Brick courses should be perfectly horizontal at all times
• Verticality of the wall should be ensured by frequently checking with plumb-bob.
• Whenever work is stopped brick masonry should be left with toothed end.
ADVANTAGES OF BRICK MASONRY:
• Brick masonry is cheaper than stone masonry.
• The bricks are of similar size.
• Brick blocks do not require any dressing.
• Bricks are very light in weight.
• No complicated lifting equipment is required for brickwork.
• Brick can be made with less skilled labourers.
• The bonding strength is very good and the brickwork is more durable.
DISADVANTAGES OF BRICK MASONRY:
• Time-consuming manufacturing process.
• Brick masonry cannot be used in a high seismic zone.
• Bricks have very low tensile strength.
• Since bricks absorb water easily, it causes fluorescence when not exposed to air.
• A rough surface of bricks can cause mould to grow if not cleaned properly.
• Concrete blocks are manufactured in required shape and sizes and these may be solid or hollow blocks. The common size of concrete blocks is 39cm x 19cm x (30cm or 20 cm or 10cm) or 2 inch, 4 inch, 6 inch, 8 inch, 10 inch and 12-inch unit configurations. Which is Convenient at construction process and which is not time consuming.
• Cement, aggregate, water is used to prepare concrete blocks. The cement-aggregate ratio in concrete blocks is 1:6. Aggregate used is of 60% fine aggregate and 40% coarse aggregate. It’s quite strong and they provide the calibration the progress of work.
• Solid concrete blocks which are used in the construction process have flat and even surface that hence demands less mortar compared to red bricks and now a days it’s widely used in construction of the building.
• Solid concrete blocks are employed in construction to act both as load bearing and non-load bearing in walls, panel wall and partition walls. This can also be used as backing for piers, retaining walls, other facing materials, chimneys, fire places and garden walls etc.
TYPES OF CONCRETE BLOCKS:
Depending upon the structure, shape, size and manufacturing processes concrete blocks are mainly classified into 2 types and they are
• Solid concrete blocks
• Hollow concrete Blocks
• Solid Concrete Blocks
Solid concrete blocks are commonly used, which are heavy in weight and manufactured from dense aggregate. They are very strong and provide good stability to the structures. So for large work of masonry like for load bearing walls these solid blocks are preferable. They are available in large sizes compared to bricks. So, it takes less time to construct concrete masonry than brick masonry.
• Hollow Concrete Blocks
Hollow concrete blocks contain void area greater than 25% of gross area. Solid area of hollow bricks should be more than 50%. The hollow part may be divided into several components based on our requirement. They are manufactured from lightweight aggregates. They are light weight blocks and easy to install.
• AAC Blocks
• Autoclaved aerated concrete AAC has many names like autoclaved cellular concrete, autoclaved lightweight concrete, porous concrete, aircrete, etc.
• AAC is lightweight precast foam concrete. These blocks are porous, reusable, non-toxic, renewable, and recyclable also.
ADVANTAGES OF AACBLOCKS:
• Lightweight: AAC Blocks are three to four times lighter than traditional brick; therefore, more suitable and cheaper to transport.AAC Block weighs approximately 50% less than standard concrete masonry block, and usage reduces the overall dead load of the building thereby allowing construction of the taller building construction. Most Civil Contractors prefer this as per the requirement of the customer.
• Faster Construction: Reduces construction time by 20% different sizes of blocks helps reduce the number of joints in wall masonry, lighter blocks facilitate more comfortable and faster construction process during the building house construction. These blocks are easy to install also sets and harden quickly.
• Thermal insulation and energy-efficient: These blocks allow excellent thermal insulation due to tiny air pores and thermal mass of blocks. Hence helps in reducing heating and air conditioning costs of a building.
• Seismic resistant: The manufacturing process gives the blocks excellent strength maintaining its lightweight property due to which the steadiness of these blocks in buildings is more reliable, making it earthquake resistant
DISADVANTAGES OF AACBLOCKS:
• AAC blocks are non-load-bearing material; hence it can be used only for partition walls.
• AAC blocks are well known for cracks after installation, which can be overcome by reducing the mortar strength.
• AAC blocks have brittle nature; therefore, they require more care than clay brick while handling and transporting.
• The cost per unit of AAC block is high, but overall, masonry cost is low because it requires less mortar for installation.
We does the house / building construction and the process of construction with the requirements of the Customer and the packages.