September 6, 1901. President William McKinley is shot at the Pan American Exposition in Buffalo, NY. Anarchist Leon Czolgosz is arrested in connection with the attack. September 14, 1901. McKinley dies of complications from his bullet wounds. Vice President Theodore Roosevelt assumes the presidency.
Concrete slab. A concrete slab is a common structural element of modern buildings. Horizontal slabs of steel reinforced concrete, typically between 4 and 20 inches (100 and 500 millimeters) thick, are most often used to construct floors and ceilings, while thinner slabs are also used for exterior paving.
Slab jacking is a process for raising and supporting settled, uneven concrete using a cement-based grout which primarily consists of lime or sand. The process, material and good applications are detailed below. Concrete Jack has completed thousands of slab jacking projects throughout the Mid-Atlantic.