The size and weight of the bricks made them easier to work with than earth and stone, so construction quickened. Additionally, bricks could bear more weight and endure better than rammed earth. Stone can hold under its own weight better than brick, but is more difficult to use.
The size and weight of the bricks made them easier to handle than earth and stone, so construction sped up. Moreover, bricks could support more weight and last longer than rammed earth. Stone can withstand its own weight better than brick but is harder to use.