OZ - diagnóstico, levantamento e controlo de qualidade em estruturas e fundações, ld.ª

Bridges and viaducts

EN 125 – Rehabilitation of the Tavira viaduct – Testing plan

General view of the bridge

Lower view of the bridge during the inspection and testing works

Visual Inspection – Survey anomalies - Pillar

Visual Inspection – Survey anomalies – Pillar

Visual Inspection – Survey anomalies – Bridge floor

Visual Inspection – Survey anomalies – Abutment

Visual Inspection – Survey anomalies – Support equipment

Visual Inspection – Survey anomalies – Crack opening measurement

Visual Inspection – Survey anomalies – Crack opening measurement with an optical crack meter

Visual Inspection – Survey anomalies – Photomicrography of crack

Visual Inspection – Survey anomalies – Abutment slab

Visual Inspection – Survey anomalies – Frame beam - Railing

Visual Inspection – Survey anomalies – Roadway

Topographic levelling of the bridge deck – Asphalt cutting for subsequent topographic notations

Topographic levelling of the bridge deck – Measurement of asphalt thickness

Foundation survey shafts

Tests “in-situ”

Tests “in-situ”. Test zones – Reinforcement meshes detected with the covermeter – Longitudinal beam

Tests “in-situ”. Test zones – Reinforcement meshes detected with the covermeter – Cross girder

Tests “in-situ”. Test zones – Reinforcement meshes detected with the covermeter – Crossbar of a pillar

Tests “in-situ”. Detection and evaluation of the reinforcement cover the slab and of the bridge deck with the covermeter

Tests “in-situ”. Drilling a hole to determine the depth of concrete carbonation

Tests “in-situ”. Measuring the depth of concrete carbonation

Tests “in-situ”. Reinforcement corrosion evaluation – Measuring corrosion intensity through the polarization resistance technique

Tests “in-situ”. Collecting dust to determine chloride content at different depths

Tests “in-situ”. Characterization of the concrete – Execution of impact-echo tests

Characterization of the concrete – Core drilling for laboratory tests

Characterization of the concrete –Thin sections intended for petrographic anomalies

Characterization of the concrete - Photomicrography of a thin section obtained in the microscope