Leo Pel (0000-0001-7378-8589)

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RESEARCH PROFILE

Leo Pel is an Associate Professor in the group transport in Permeable Media at the Department of Applied Physics, Eindhoven University of Technology (TU/e). Leo does research in Fluid Dynamics, Materials Science and Experimental Physics. His main research interest is the combined moisture and ion transport and crystallization in porous media in order to understand damages. In the group, the potential of Nuclear Magnetic Resonance (NMR) imaging on multiple length scales is combined with physical and mathematical modeling. Over the past years, the group we has built up a collection of NMR setups, which offer the unique possibility to non-destructively measure the moisture and ion content in porous media over various length scales.

Leo’s current research focuses on Cl transport in concrete, electro kinetic transport of Li in concrete and expansion of wood due to moisture. His group studies the transport of moisture and ions in a variety of permeable materials, ranging from porous building materials of macroscopic dimensions, such as brick and concrete, over chemical reactors up to thin polymer coatings. The goal is to improve the performance by identifying the key parameters that govern the transport and damage mechanisms.

Understanding the durability of materials is understanding the moisture and ion transport

ACADEMIC BACKGROUND

Leo Pel obtained his MSc in Applied Physics and received his PhD from the Department of Architecture, Building and Planning at TU/e for his thesis ‘Moisture transport in porous building materials’ in 1994. Following this, he worked as a Postdoctoral Researcher on the STW project ‘ETN.3400: Development of a measurement method to determine moisture transport processes in porous materials’.

In 2006, he was a Visiting Researcher at the J. Paul Getty Museum and in 2008 he was a Visiting Fellow at Princeton University. Leo is a regular contributor to leading journals. Leo held two postdoc positions before becoming an Associate Professor at TU/e. He is involved in various national and international projects focusing on understanding the durability of porous materials. In addition, he has taken part in various EU programs focusing on the conservation of our cultural heritage.

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Eindhoven University of Technology: Eindhoven, Noord-Brabant, NL

associate prof (applied physics)

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Leo Pel

https://orcid.org/0000-0001-7378-8589

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Eindhoven University of Technology: Eindhoven, Noord-Brabant, NL

Eindhoven University of Technology: N/A, NL

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Eindhoven University of Technology: N/A, NL

Works (50 of 195)

Non-Destructive Measurement of Chloride Profiles in Cementitious Materials Using NMR

Meso-damage characterization of chemically corroded rocks under unloading confinement conditions

Fast 1D NMR imaging of clay sedimentation using a multi-slice stepper motor method

Stress-dependent Mohr–Coulomb shear strength parameters for intact rock

Stress-dependent instantaneous cohesion and friction angle for the Mohr–Coulomb criterion

Influence of water-soluble leachates from natural fibers on the hydration and microstructure of cement paste studied by nuclear magnetic resonance

Meso-damage quantification of rocks under coupled chemical-mechanical conditions

NMR investigations on Cl− and Na+ ion binding during the early hydration process of C3S, C3A and cement paste

Effect of evaporative surface area on salt efflorescence and subflorescence formation in a given porous material

Enhanced Hoek-Brown (H-B) criterion for rocks exposed to chemical corrosion

Sol-gel transition by evaporation in porous media

A New Volumetric Strain-Based Method for Determining the Crack Initiation Threshold of Rocks Under Compression

Modelling of T1 dispersion effects on fluid polarization in oil flow

Quantifying early age hydration and micro-structure evolution of fast setting binder using 1H NMR

A contribution to understanding the rheological measurement, yielding mechanism and structural evolution of fresh cemented paste backfill

Distribution and curing kinetics of waterborne epoxy resin in repair system

Moisture content measurement

Using 1H and 23Na NMR relaxometry as a novel tool to monitor the moisture and salt distribution in commercial low-moisture part skim mozzarella

An NMR study of the role of coir fibers in the hydration and drying of cement paste at early age

Mechanical–transport–chemical modeling of electrochemical repair methods for corrosion-induced cracking in marine concrete

Early-age hydration and shrinkage of cement paste with coir fibers as studied by Nuclear Magnetic Resonance

NMR study on the early-age hydration and ion binding of the cement paste prepared with NaCl solutions

Modeling fluid polarization during flow in a non-uniform polarization field

Characteristics of Moisture Transfer and Surface Crack Development of a Single Lignite Particle Driven by Humidity Difference

NMR T1 dispersion of crude oils from 10 kHz to 20 MHz

Reinforcing Mechanisms of Coir Fibers in Light-Weight Aggregate concrete

Cl- and Na+ ions binding in slag and fly ash cement paste during early hydration as studied by 1H, 35Cl and 23Na NMR

Autogenous Healing in Cementitious Materials with Superabsorbent Polymers Quantified by Means of NMR

NMR Study on the Pore Structure Development of Cement Paste with Bleeding during Hydration

The effect of permeability enhancement on dry-out behavior of CA- and microsilica gel-bonded castables as determined by NMR

NMR study on bleeding properties of the fresh cement pastes mixed with polycarboxylate (PCE) superplasticizers

Direct observation of the moisture distribution in calcium aluminate cement and hydratable alumina-bonded castables during first-drying

The frequency dependence of hygro-expansive scaling of oak

Moisture-induced bending of an oak board exposed to bilateral humidity fluctuations

Kinetics of SAPs During Hardening, Drying and Healing in Cementitious Materials Studied by NMR

The microstructure development during bleeding of cement paste

Comparison of different techniques to study the nanostructure and the microstructure of cementitious materials with and without superabsorbent polymers

Relating relative humidity fluctuations to damage in oak panel paintings by a simple experiment

Dynamics of heterogeneous crosslinking in room temperature vulcanizing poly(dimethyl siloxane) and its dependence on moisture supply

Setting characteristics, mechanical properties and microstructure of cement pastes containing accelerators mixed with superabsorbent polymers (SAPs)

Moisture transport in pine wood during one-sided heating studied by NMR

Superabsorbent polymers to mitigate plastic drying shrinkage in a cement paste as studied by NMR

One‑dimensional NMR imaging of high‑temperature first‑drying in monolithics

A simplified model for the combined wicking and evaporation of a NaCl solution in limestone

Experimental and numerical investigation of structure and hydrodynamics in packed beds of spherical particles

Moisture penetration in oak during sinusoidal humidity fluctuations studied by NMR

Dynamic bending of an oak board due to a moisture content gradient

Experimental investigation of the lithium transport mechanisms in cementitious materials by NMR

NMR study of salt transport in porous material during steady state wick action

Non-destructive measurements of1H,23Na and35Cl profiles in cementitious materials with NMR