bheger. brick. August 10th , 2018.
Bricks manufactured prior to World War II are cleaned by brushing off debris, then removing any soft lime-based mortar with a mild acidic solution (follow all safety precautions, especially covering your skin and eyes). Follow the cleaning with pressure washing. Bricks manufactured after WWII are nearly impossible to clean because most likey Portland cement-based mortar was used, and this creates such strong bond that it is very difficult to separate the brick.
By 1200 BC brick making was widespread - there is ample archeological evidence of their use across Europe and Asia and the Romans helped spread bricks across the Roman Empire.
So what do bricklayers like in a brick? First of all, bricklaying is a manual job so its important that bricks can be picked up and handled easily in one hand, so that cement can be laid with a trowel with the other hand. This makes the job of bricklaying quicker. But there are other considerations, depending on the nature of the job. Brick colour, density, thermal qualities, fire resistance and size can all be relevant. Often large concrete blocks are used by bricklayers for internal, unseen work. As they are larger, not so many are required so with two bricklayers on the job a wall can go up quickly. Obviously with decorative or exposed brickwork the colour or even shape will be important to create the right effect.
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