Yes, sand bricks are considered strong.
Understanding Sand Brick Strength
Sand bricks, also known as calcium silicate bricks, are known for their structural properties, which include significant strength. Their manufacturing process plays a crucial role in developing this strength.
Sand bricks are produced by compressing a mixture primarily composed of sand, lime, and certain additives into specific molds. Following the molding process, these bricks undergo a curing phase, typically in an autoclave.
The Role of Autoclaving
The autoclaving process involves exposing the bricks to high-pressure steam. This step is vital for enhancing the physical properties of the sand bricks. According to available information, the high-pressure steam curing used during autoclaving is specifically noted to increase their tensile strength and durability.
- Increased Tensile Strength: This refers to the brick's ability to withstand pulling or stretching forces without breaking. A higher tensile strength indicates a stronger, more stable brick under various loads.
- Enhanced Durability: This relates to the brick's ability to resist wear, decay, and damage over time and when exposed to environmental factors. Increased durability means the bricks are more resistant to cracking, erosion, and other forms of deterioration.
Therefore, the carefully controlled manufacturing process, particularly the autoclaving step, is key to making sand bricks a strong and durable building material.
