Advacore

Technical Blog & Case Studies

Field reports, testing methodologies, and engineering insights from our concrete integrity projects.

Case Study

Non-Destructive Testing of Warehouse Foundations: A Case Study

Using ultrasonic pulse velocity to assess concrete integrity

This case study examines a 20-year-old warehouse foundation where surface cracks raised concerns about structural safety. Our team deployed ultrasonic pulse velocity (UPV) testing across 120 grid points, identifying three distinct zones with reduced wave propagation speeds. Core samples from those zones confirmed honeycombing and micro-cracking due to alkali-silica reaction. The report details the testing protocol, data interpretation, and the resulting targeted repair strategy that saved the client 40% compared to full slab replacement.

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Technical Guide

Rebar Corrosion Assessment Using Electromagnetic Sensors

Field methodology and data interpretation for retaining walls

Electromagnetic corrosion sensors offer a rapid, non-invasive way to assess rebar condition in concrete retaining walls. This article walks through a field deployment on a 300-meter highway retaining wall, where half-cell potential mapping and linear polarization resistance measurements were combined. Results showed active corrosion in the lower third of the wall due to chloride ingress from de-icing salts. We discuss sensor calibration, environmental corrections, and how the data informed a cathodic protection design.

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Process Overview

Core Drilling Analysis for Commercial Building Load Assessments

From sample extraction to compliance reporting

Core drilling remains the gold standard for verifying in-situ concrete strength. This article covers the complete workflow: sample extraction with diamond-tipped coring bits, laboratory compressive strength testing, and petrographic analysis for aggregate distribution. We present data from a 12-story commercial building where core tests revealed a 15% strength deficit in upper-floor columns. The analysis led to a revised structural load plan and a targeted carbon-fiber wrapping retrofit. Compliance reporting requirements per ACI 318 are also outlined.

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Related Technical Resources

Further reading on concrete integrity, corrosion assessment, and core drilling analysis.

Non-Destructive Testing of Warehouse Foundations

Ultrasonic pulse velocity revealed hidden voids in a 20-year-old slab. Targeted repairs saved 40% vs. full replacement.

Read case study →

Rebar Corrosion Assessment Using Electromagnetic Sensors

Field methodology on a 300m retaining wall. Chloride ingress mapped, cathodic protection designed from data.

Read technical guide →

Core Drilling Analysis for Commercial Load Assessments

12-story building: core tests showed 15% strength deficit in upper columns. Carbon-fiber wrap retrofit designed.

Read process overview →

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