Garden landscaping design of guitars

THE BANKS TO BE CARRIED OUT IN THE PARK THE GUITARS WILL BE OF ARMED CONCRETE, LEGITIM IRON BEDS OF 3/8 ", GRADE 40, WITH THEIR RESPECTIVE TRANSLATIONS, AND BURIED ACCORDING TO THE SPECIFIED IN PLANS WILL BE USED.
THE CONCRETE TO BE USED SHOULD HAVE A RESISTANCE OF 245 KG / CM2, WITH A PROPORTION OF 1: 1.5: 2.5 (CEMENT PORTLAND UGC WITH A RESISTANCE OF 4000 PSI WITH NATURAL PUZOLANA MANUFACTURED BY CEMENTOS PROGRESO, WHICH MEETS THE NORMS COGUANOR NGO 41018 AND AST C206 AND C207, TO WHICH ONLY WATER IS ADDED TO GET THE DESIRED CONSISTENCY, ARENA DE RIO LIMPIA AND PIEDRÍN CRUSHED, WITH A THICKNESS OF 0.10 METERS.
THE BACKING OF THE BANK WILL BE THE EDGE OF THE GARDENER, WHICH WILL BE CARRIED OUT WITH 2 LEGITIMATE IRON RODS OF 3/8 "AND 1/4" LINKS, BOTH OF GRADE 40.