“The core must be strong”, is what they say. For a house, the core is the bricks. Bricks are the basis of any house. Today bricks come in different types, with an array of different colors, textures, and sizes and each type has its own unique characteristic. The type of bricks for your house has a huge impact on the other aspects of your house like the overall aesthetic appearance, the construction ease, quality, etc.
Choosing brick is an important call in constructing a house. It must complement the style and the décor. Here are the different options of bricks you can choose from: -
Red Bricks or burnt clay bricks – The most traditional as well as the most versatile bricks. These hand mold bricks are manufactured by pressing wet clay into molds, then drying and firing them in kilns. These bricks generally possess good thermal insulation properties (ability to reduce the heat transfer between objects in thermal contact) thereby keeping the house cool during the day and warm during the night. However, the major disadvantage of these bricks is their heavy weight, which means more layers of mortar and extra layers of plaster to cover the walls.
Concrete Bricks – Made of cement, sand, and lightweight aggregates, concrete bricks are also called concrete blocks. Concrete bricks are cheaper than clay bricks, yet stronger than them. Concrete bricks derive their strength from the crushed stone used in their manufacturing. These bricks come in various colors and patterns and usually have a coating of iron oxide pigment on their surface. The main drawback of using these bricks is the concrete shrinkage after installation. This shrinkage creates gaps between the bricks.
Sand Lime Bricks – Sand lime bricks are made by mixing sand, fly ash, and lime. The higher compressive strength of these bricks makes them a good option for multistoried houses. These bricks have excellent acoustic insulation, good heat, and humidity accumulation besides good fire resistance properties. However, these bricks shouldn’t be used for laying foundations, building chimneys, and for pavement purposes because of their ineffective water, fire, and abrasion resistance properties.
Fly Ash Bricks – Fly ash bricks are made with clay and fly ash, which is a by-product of coal burning. These are self-cementing bricks since fly ash contains a high volume of calcium oxide, which expands when exposed to moisture. These bricks are particularly used in masonry units. Because of their lightweight, these bricks are typically used in structural walls, pillars, and foundations. These bricks are good for warm places because they don’t absorb heat. On the other hand, it can make the room temperature considerably lower in cold areas because of the absence of heat retention.
Interlocking bricks – These bricks, as the name suggests, are designed to fit into each other. These bricks are the enhanced form of traditional clay bricks. The self-locking in these bricks is achieved through the shear key and lock mechanism. The shape of the shear key will vary basis the design and a complimentary lock is provided on the opposite end of the brick. Load transfer is achieved by shear transfer and gravity. These are earthquake-resistant bricks and do not require plaster work, hence a neat finish is achievable with these bricks.