Even with the addition of larger quantities of ash to achieve the stabilization required, the fly ash treatment is 4. generally more economical than the lime and cement alternatives. Typically, the delivered cost. of fly ash will range from $18 to $30 per ton and depends on the ash source and haul distance.
The Zapatista Army of National Liberation (EZLN) is a revolutionary leftist movement that originated in Chiapas, a southernmost state in Mexico. The group was mainly made up of the rural indigenous people with support from some urban areas and international support.
Unlike other Zapatista spokespeople, Marcos is not an indigenous Mayan. The group takes its name from Emiliano Zapata, the agrarian reformer[1] and commander of the Liberation Army of the South during the Mexican Revolution and sees itself as his ideological heir.