Reinforcement of wooden joist floor with connectors and lightweight concrete

Reinforcement of wooden joist floor with the arrangement in holes of 5 connectors per m² of floor, formed by galvanized steel screws (quality 6.8 according to UNE-EN ISO 898-1), 12 mm in diameter and 100 mm in length, with hexagonal head, metric thread total, nuts and washers, fixed to the beams with epoxy-acrylic resin, free of styrene; and 15 connectors per m² of floor, formed by galvanized steel screws (quality 6.8 according to UNE-EN ISO 898-1), 10 mm in diameter and 80 mm in length, with hexagonal head, metric thread total, nuts and washers, fixed to the joists with epoxy-acrylic resin, free of styrene; placement of electrosoldered mesh ME 20x20 Ø 5-5 B 500 T 6x2.20 UNE-EN 10080 and pouring of 5 cm thick compression layer of lightweight concrete HL-25/B/10/XC2, density between 1200 and 1500 kg/m³, (minimum amount of cement 275 kg/m³), manufactured in a central, and poured with a cubilote; shoring and unshoring of the joists.