Using 2-by-4-inch boards as forms and leaving a 1/2-inch clearance under the boards produces a 4-inch thick walkway slab. At this thickness, 1 cubic yard of concrete covers about 80 square feet of walkway.ase Thickness. A base or bed of gravel between 4 and 8 inches thick supports the concrete walkway. Pack the gravel using a vibrating plate tamper to produce a firm bed for the concrete. Never pour sidewalks or walkways over grass or sod.
Alpha-CD is a one dose C & D toxoid for all types of cattle. Aids in the reduction of enterotoxemia caused by Clostridium perfringens Types C & D toxins. Unique DD-2 adjuvant maximizes immune response while stimulating a high degree and long duration of protection. A single dose provides protective levels of immunity.
Clostridium perfringens. Diseases caused by Clostridium perfringens appear as a chronic or acute enteritis of piglets. Alternative names: Clostridial diseases, Clostridium perfringens type A, Clostridium perfringens type C, necrotic enteritis. Diseases caused by Clostridium perfringens appear as a chronic or acute enteritis of piglets. Clostridia are gram positive bacteria of a great size, which produce spores.